Bug fix for observed in particles, getNth and naming for contact lists

update benchmarks file and romove the unused comments in rotatingDrumMedium

.gitignore

@@ -1,6 +1,12 @@
+# files 
+.clang-format
+.vscode
+.dependencygraph
+
 # Prerequisites
 *.d
 
+
 # Compiled Object files
 *.slo
 *.lo

CMakeLists.txt

@@ -1,75 +1,64 @@
 cmake_minimum_required(VERSION 3.16 FATAL_ERROR)
 
 # set the project name and version
-project(phasicFlow VERSION 0.1 )
+project(phasicFlow VERSION 1.0 )
 
-set(CMAKE_CXX_STANDARD 17 CACHE STRING "" FORCE)
+set(CMAKE_CXX_STANDARD 20 CACHE STRING "" FORCE)
 set(CMAKE_CXX_STANDARD_REQUIRED True)
 set(CMAKE_INSTALL_PREFIX ${phasicFlow_SOURCE_DIR} CACHE PATH "Install path of phasicFlow" FORCE)
-set(CMAKE_BUILD_TYPE Release CACHE STRING "build type" FORCE)
+set(CMAKE_BUILD_TYPE Release CACHE STRING "build type")
-
+set(BUILD_SHARED_LIBS ON CACHE BOOL "Build using shared libraries" FORCE)
-message(STATUS ${CMAKE_INSTALL_PREFIX})
-
-mark_as_advanced(FORCE var Kokkos_ENABLE_CUDA_LAMBDA)
-mark_as_advanced(FORCE var Kokkos_ENABLE_OPENMP)
-mark_as_advanced(FORCE var Kokkos_ENABLE_SERIAL)
-mark_as_advanced(FORCE var Kokkos_ENABLE_CUDA_LAMBDA)
 mark_as_advanced(FORCE var BUILD_SHARED_LIBS)
 
-option(USE_STD_PARALLEL_ALG "Use TTB std parallel algorithms" ON)
+message(STATUS "Install prefix is:" ${CMAKE_INSTALL_PREFIX})
+
+include(cmake/globals.cmake)
+
+option(pFlow_STD_Parallel_Alg "Use TTB std parallel algorithms" ON)
 option(pFlow_Build_Serial "Build phasicFlow and backends for serial execution" OFF)
 option(pFlow_Build_OpenMP "Build phasicFlow and backends for OpenMP execution" OFF)
 option(pFlow_Build_Cuda   "Build phasicFlow and backends for Cuda execution" OFF)
-option(pFlow_Build_Double "Build phasicFlow with double precision variables" ON)
+option(pFlow_Build_Double "Build phasicFlow with double precision floating-oint variables" ON)
+option(pFlow_Build_MPI    "Build for MPI parallelization. This will enable multi-gpu run, CPU run on clusters (distributed memory machine). Use this combination Cuda+MPI, OpenMP + MPI or Serial+MPI " OFF)
 
-set(BUILD_SHARED_LIBS ON CACHE BOOL "Build using shared libraries" FORCE)
+#for installing the required packages
+include(cmake/preReq.cmake)
 
 if(pFlow_Build_Serial)
 	set(Kokkos_ENABLE_SERIAL ON CACHE BOOL "Serial execution" FORCE) 
 	set(Kokkos_ENABLE_OPENMP OFF CACHE BOOL "OpenMP execution" FORCE)
 	set(Kokkos_ENABLE_CUDA OFF CACHE BOOL "Cuda execution" FORCE)
 	set(Kokkos_ENABLE_CUDA_LAMBDA OFF CACHE BOOL "Cuda execution" FORCE)
+	set(Kokkos_ENABLE_CUDA_CONSTEXPR OFF CACHE BOOL "Enable constexpr on cuda code" FORCE)
 elseif(pFlow_Build_OpenMP )
 	set(Kokkos_ENABLE_SERIAL ON CACHE BOOL "Serial execution" FORCE) 
 	set(Kokkos_ENABLE_OPENMP ON CACHE BOOL "OpenMP execution" FORCE)
 	set(Kokkos_ENABLE_CUDA OFF CACHE BOOL "Cuda execution" FORCE)
 	set(Kokkos_ENABLE_CUDA_LAMBDA OFF CACHE BOOL "Cuda execution" FORCE)
-	set(Kokkos_DEFAULT_HOST_PARALLEL_EXECUTION_SPACE SERIAL CACHE STRING "" FORCE)
+	set(Kokkos_DEFAULT_HOST_PARALLEL_EXECUTION_SPACE Serial CACHE STRING "" FORCE)
+	set(Kokkos_DEFAULT_DEVICE_PARALLEL_EXECUTION_SPACE OpenMP CACHE STRING "" FORCE)
+	set(Kokkos_ENABLE_CUDA_CONSTEXPR OFF CACHE BOOL "Enable constexpr on cuda code" FORCE)
 elseif(pFlow_Build_Cuda)
 	set(Kokkos_ENABLE_SERIAL ON CACHE BOOL "Serial execution" FORCE) 
 	set(Kokkos_ENABLE_OPENMP OFF CACHE BOOL "OpenMP execution" FORCE)
 	set(Kokkos_ENABLE_CUDA ON CACHE BOOL "Cuda execution" FORCE)
 	set(Kokkos_ENABLE_CUDA_LAMBDA ON CACHE BOOL "Cuda execution" FORCE)
+	set(Kokkos_ENABLE_CUDA_CONSTEXPR ON CACHE BOOL "Enable constexpr on cuda code" FORCE)
 endif()
 
-
+if(pFlow_Build_MPI)
-
+	find_package(MPI REQUIRED)
-include(cmake/globals.cmake)
+endif()
-message(STATUS "Valid file extensions are ${validFiles}")
 
 include(cmake/makeLibraryGlobals.cmake)
 include(cmake/makeExecutableGlobals.cmake)
 
 configure_file(phasicFlowConfig.H.in phasicFlowConfig.H)
+set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
 
 #add a global include directory 
 include_directories(src/setHelpers src/demComponent "${PROJECT_BINARY_DIR}")
 
-#main subdirectories of the code 
-set(Kokkos_Source_DIR)
-
-if(DEFINED ENV{Kokkos_DIR})
-   set(Kokkos_Source_DIR $ENV{Kokkos_DIR})
-#  add_subdirectory($ENV{Kokkos_DIR} ${phasicFlow_BINARY_DIR}/kokkos)
-#  message(STATUS "Kokkos directory is $ENV{Kokkos_DIR}")
-else()
-#  add_subdirectory($ENV{HOME}/Kokkos/kokkos ${phasicFlow_BINARY_DIR}/kokkos)
-  set(Kokkos_Source_DIR $ENV{HOME}/Kokkos/kokkos)
-endif()
-
-message(STATUS "Kokkos source directory is ${Kokkos_Source_DIR}")
-add_subdirectory(${Kokkos_Source_DIR} ${phasicFlow_BINARY_DIR}/kokkos)
-
 add_subdirectory(src)
 
 add_subdirectory(solvers)
@@ -77,12 +66,9 @@ add_subdirectory(solvers)
 add_subdirectory(utilities)
 
 add_subdirectory(DEMSystems)
-#add_subdirectory(testIO)
-
 
 install(FILES "${PROJECT_BINARY_DIR}/phasicFlowConfig.H"
-  DESTINATION include
+  DESTINATION include)
-)
 
 include(InstallRequiredSystemLibraries)
 set(CPACK_RESOURCE_FILE_LICENSE "${CMAKE_CURRENT_SOURCE_DIR}/LICENSE")

DEMSystems/CMakeLists.txt

@@ -1,9 +1,11 @@
 
 set(SourceFiles 
-DEMSystem/DEMSystem.cpp
-sphereDEMSystem/sphereDEMSystem.cpp
-sphereDEMSystem/sphereFluidParticles.cpp
 domainDistribute/domainDistribute.cpp
+DEMSystem/DEMSystem.cpp
+sphereDEMSystem/sphereFluidParticles.cpp
+sphereDEMSystem/sphereDEMSystem.cpp
+grainDEMSystem/grainFluidParticles.cpp
+grainDEMSystem/grainDEMSystem.cpp
 )
 
 set(link_libs Kokkos::kokkos phasicFlow Particles Geometry Property Interaction Interaction Utilities)

DEMSystems/DEMSystem/DEMSystem.cpp

@@ -33,14 +33,14 @@ pFlow::DEMSystem::DEMSystem(
 	ControlDict_()
 {
   
-  REPORT(0)<<"Initializing host/device execution spaces . . . \n";
+	REPORT(0)<<"Initializing host/device execution spaces . . . \n";
-	REPORT(1)<<"Host execution space is "<< greenText(DefaultHostExecutionSpace::name())<<endREPORT;
+	REPORT(1)<<"Host execution space is "<< Green_Text(DefaultHostExecutionSpace::name())<<END_REPORT;
-	REPORT(1)<<"Device execution space is "<<greenText(DefaultExecutionSpace::name())<<endREPORT;
+	REPORT(1)<<"Device execution space is "<<Green_Text(DefaultExecutionSpace::name())<<END_REPORT;
 
  	// initialize Kokkos
 	Kokkos::initialize( argc, argv ); 
 
-	REPORT(0)<<"\nCreating Control repository . . ."<<endREPORT;
+	REPORT(0)<<"\nCreating Control repository . . ."<<END_REPORT;
 	Control_ = makeUnique<systemControl>(
 		ControlDict_.startTime(),
 		ControlDict_.endTime(),
@@ -87,4 +87,3 @@ pFlow::uniquePtr<pFlow::DEMSystem>
 
 	return nullptr;
 }
-

DEMSystems/DEMSystem/DEMSystem.hpp

@@ -25,6 +25,7 @@ Licence:
 
 #include "types.hpp"
 #include "span.hpp"
+#include "box.hpp"
 #include "virtualConstructor.hpp"
 #include "uniquePtr.hpp"
 #include "systemControl.hpp"
@@ -60,6 +61,7 @@ public:
 
 	DEMSystem(const DEMSystem&)=delete;
 
+	/// @brief no assignment 
 	DEMSystem& operator = (const DEMSystem&)=delete;
 
 	create_vCtor(
@@ -111,19 +113,34 @@ public:
 	int32 numParInDomain(int32 di)const = 0;
 	
 	virtual
-	std::vector<int32> numParInDomain()const = 0;
+	std::vector<int32> numParInDomains()const = 0;
 
 	virtual 
-	span<const int32> parIndexInDomain(int32 di)const = 0;
+	span<const int32> parIndexInDomain(int32 domIndx)const = 0;
 
 	virtual
-	span<real> parDiameter() = 0; 
+	span<real> diameter() = 0; 
 
 	virtual 
-	span<realx3> parVelocity() = 0;
+	span<real> courseGrainFactor() = 0;
 
 	virtual
-	span<realx3> parPosition() = 0;
+	span<realx3> acceleration()=0;
+
+	virtual
+	span<realx3> velocity() = 0;
+
+	virtual
+	span<realx3> position() = 0;
+
+	virtual
+	span<realx3> rAcceleration()=0;
+
+	virtual
+	span<realx3> rVelocity() = 0;
+
+	virtual
+	span<realx3> rPosition() = 0;
 
 	virtual
 	span<realx3> parFluidForce() = 0;
@@ -153,7 +170,6 @@ public:
 	bool iterate(real upToTime) = 0;
 	
 	
-
 	static 
 	uniquePtr<DEMSystem>
 		create(
@@ -162,8 +178,6 @@ public:
 			int argc, 
 			char* argv[]);
 
-
-
 };
 
 

DEMSystems/domainDistribute/domainDistribute.cpp

@@ -33,7 +33,7 @@ void pFlow::domainDistribute::clcDomains(const std::vector<box>& domains)
 
 
 pFlow::domainDistribute::domainDistribute(
-	const Vector<box>& domains,
+	const std::vector<box>& domains,
 	real maxBoundingBox)
 :
 numDomains_(domains.size()),
@@ -47,10 +47,10 @@ maxBoundingBoxSize_(maxBoundingBox)
 }
 
 bool pFlow::domainDistribute::locateParticles(
-		ViewType1D<realx3,HostSpace> points, includeMask mask)
+		ViewType1D<realx3,HostSpace> points, const pFlagTypeHost& mask)
 {
 	
-	range activeRange = mask.activeRange();
+	const rangeU32 activeRange = mask.activeRange();
 
 
 	for(int32 di=0; di<numDomains_; di++)
@@ -59,7 +59,7 @@ bool pFlow::domainDistribute::locateParticles(
 	}
 
 	
-	for(int32 i=activeRange.first; i<activeRange.second; i++)
+	for(int32 i=activeRange.start(); i<activeRange.end(); i++)
 	{
 		if(mask(i))
 		{

DEMSystems/domainDistribute/domainDistribute.hpp

@@ -43,19 +43,16 @@ protected:
 	
 	int32Vector_H 							numParInDomain_;
 
-
 	real maxBoundingBoxSize_;
 
 	real domainExtension_ = 1.0;
 
-	using includeMask = typename pointStructure::activePointsHost;
-
 	void clcDomains(const std::vector<box>& domains);
 
 public:
 
 	domainDistribute(
-		const Vector<box>& domains,
+		const std::vector<box>& domains,
 		real maxBoundingBox);
 
 	~domainDistribute()=default;
@@ -78,7 +75,7 @@ public:
 	{
 		return
 		span<const int32>(
-			particlesInDomains_[di].hostVectorAll().data(),
+			particlesInDomains_[di].hostViewAll().data(),
 			numParInDomain_[di]
 			);
 	}
@@ -91,7 +88,7 @@ public:
 
 	//template<typename includeMask>
 	bool locateParticles(
-		ViewType1D<realx3,HostSpace> points, includeMask mask);
+		ViewType1D<realx3,HostSpace> points, const pFlagTypeHost& mask);
 	
 };
 

DEMSystems/grainDEMSystem/grainDEMSystem.cpp

@@ -0,0 +1,273 @@
+/*------------------------------- phasicFlow ---------------------------------
+      O        C enter of
+     O O       E ngineering and
+    O   O      M ultiscale modeling of
+   OOOOOOO     F luid flow       
+------------------------------------------------------------------------------
+  Copyright (C): www.cemf.ir
+  email: hamid.r.norouzi AT gmail.com
+------------------------------------------------------------------------------  
+Licence:
+  This file is part of phasicFlow code. It is a free software for simulating 
+  granular and multiphase flows. You can redistribute it and/or modify it under
+  the terms of GNU General Public License v3 or any other later versions. 
+ 
+  phasicFlow is distributed to help others in their research in the field of 
+  granular and multiphase flows, but WITHOUT ANY WARRANTY; without even the
+  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+-----------------------------------------------------------------------------*/
+
+#include "grainDEMSystem.hpp"
+#include "vocabs.hpp"
+
+bool pFlow::grainDEMSystem::loop()
+{
+
+	do 
+	{
+		//
+		if(! insertion_().insertParticles( 
+			Control().time().currentIter(),
+			Control().time().currentTime(),
+			Control().time().dt()	) )
+		{
+			fatalError<<
+			"particle insertion failed in grainDEMSystem.\n";
+			return false;
+		}	
+
+		geometry_->beforeIteration();
+		
+		interaction_->beforeIteration();
+
+		particles_->beforeIteration();
+		
+		
+		interaction_->iterate();
+
+		particles_->iterate();
+
+		geometry_->iterate();
+
+		particles_->afterIteration();
+		
+		geometry_->afterIteration();
+
+	}while(Control()++);
+
+	return true;
+}
+
+pFlow::grainDEMSystem::grainDEMSystem(
+		word  demSystemName,
+		const std::vector<box>& domains,
+		int argc, 
+		char* argv[],
+		bool requireRVel)
+:
+	DEMSystem(demSystemName, domains, argc, argv),
+	requireRVel_(requireRVel)
+{ 
+	
+	REPORT(0)<<"\nReading proprties . . . "<<END_REPORT;
+	property_ = makeUnique<property>(
+		propertyFile__,
+    	Control().caseSetup().path());
+
+	REPORT(0)<< "\nCreating surface geometry for grainDEMSystem . . . "<<END_REPORT;
+	geometry_ = geometry::create(Control(), Property());
+
+	REPORT(0)<<"Reading shape dictionary ..."<<END_REPORT;
+	grains_ = makeUnique<grainShape>(
+		pFlow::shapeFile__,
+		&Control().caseSetup(),
+		Property() );	
+
+	REPORT(0)<<"\nReading grain particles . . ."<<END_REPORT;
+	particles_ = makeUnique<grainFluidParticles>(Control(), grains_());
+
+
+	insertion_ = makeUnique<grainInsertion>( 
+		particles_(), 
+		particles_().grains());
+	
+	REPORT(0)<<"\nCreating interaction model for grain-grain contact and grain-wall contact . . ."<<END_REPORT;
+	interaction_ = interaction::create(
+		Control(),
+		Particles(),
+		Geometry());
+
+	auto maxD = maxBounndingSphereSize();
+
+	particleDistribution_ = makeUnique<domainDistribute>(domains, maxD);
+
+}
+
+
+pFlow::grainDEMSystem::~grainDEMSystem()
+{
+	
+}
+
+bool pFlow::grainDEMSystem::updateParticleDistribution(
+	real extentFraction,
+	const std::vector<box> domains)
+{
+
+	if(!particleDistribution_->changeDomainsSize(
+		extentFraction,
+		maxBounndingSphereSize(),
+		domains))
+	{
+		fatalErrorInFunction<<
+		"cannot change the domain size"<<endl;
+		return false;
+	}
+
+	if(!particleDistribution_->locateParticles(
+			positionHost_, 
+			particles_->pStruct().activePointsMaskHost()))
+	{
+		fatalErrorInFunction<<
+		"error in locating particles among sub-domains"<<endl;
+		return false;
+	}
+
+	return true;
+}
+
+pFlow::int32 
+	pFlow::grainDEMSystem::numParInDomain(int32 di)const
+{
+	return particleDistribution_().numParInDomain(di);
+}
+
+std::vector<pFlow::int32> 
+	pFlow::grainDEMSystem::numParInDomains()const
+{
+	const auto& distribute = particleDistribution_();
+	int32 numDomains = distribute.numDomains();
+	std::vector<int32> nums(numDomains);
+	for(int32 i=0; i<numDomains; i++)
+	{
+		nums[i] = distribute.numParInDomain(i);
+	}
+
+	return nums;
+}
+
+pFlow::span<const pFlow::int32> 
+pFlow::grainDEMSystem::parIndexInDomain(int32 di)const
+{
+	return particleDistribution_->particlesInDomain(di);
+}
+
+pFlow::span<pFlow::real> pFlow::grainDEMSystem::diameter() 
+{	
+	return span<real>(diameterHost_.data(), diameterHost_.size());
+}
+
+pFlow::span<pFlow::real> pFlow::grainDEMSystem::courseGrainFactor()
+{
+    return span<real>(particles_->courseGrainFactorHost().data(), particles_->courseGrainFactorHost().size());
+}
+
+pFlow::span<pFlow::realx3> pFlow::grainDEMSystem::acceleration()
+{
+    return span<realx3>(nullptr, 0);
+}
+
+pFlow::span<pFlow::realx3> pFlow::grainDEMSystem::velocity()  
+{
+	return span<realx3>(velocityHost_.data(), velocityHost_.size());
+}
+
+pFlow::span<pFlow::realx3> pFlow::grainDEMSystem::position()  
+{
+	return span<realx3>(positionHost_.data(), positionHost_.size());
+}
+
+pFlow::span<pFlow::realx3> pFlow::grainDEMSystem::rAcceleration()
+{
+    return span<realx3>(nullptr, 0);
+}
+
+pFlow::span<pFlow::realx3> pFlow::grainDEMSystem::rVelocity()
+{
+    return span<realx3>(rVelocityHost_.data(), rVelocityHost_.size());
+}
+
+pFlow::span<pFlow::realx3> pFlow::grainDEMSystem::rPosition()
+{
+    return span<realx3>(nullptr, 0);
+}
+
+pFlow::span<pFlow::realx3> pFlow::grainDEMSystem::parFluidForce() 
+{
+	auto& hVec =  particles_->fluidForceHost();
+	
+	return span<realx3>(hVec.data(), hVec.size());
+}
+
+pFlow::span<pFlow::realx3> pFlow::grainDEMSystem::parFluidTorque() 
+{
+	auto& hVec =  particles_->fluidTorqueHost();
+	return span<realx3>(hVec.data(), hVec.size());
+}
+
+bool pFlow::grainDEMSystem::sendFluidForceToDEM() 
+{
+	particles_->fluidForceHostUpdatedSync();
+	return true;
+}
+
+bool pFlow::grainDEMSystem::sendFluidTorqueToDEM()
+{
+	particles_->fluidTorqueHostUpdatedSync();
+	return true;
+}
+
+bool pFlow::grainDEMSystem::beforeIteration()
+{
+	velocityHost_ = std::as_const(particles_()).velocity().hostView();
+	positionHost_ = std::as_const(particles_()).pointPosition().hostView();
+	diameterHost_ = particles_->diameter().hostView();
+
+	if(requireRVel_)
+		rVelocityHost_ = std::as_const(particles_()).rVelocity().hostView();
+	
+
+	return true;
+}
+
+
+bool pFlow::grainDEMSystem::iterate(
+	real upToTime, 
+	real timeToWrite, 
+	word timeName) 
+{
+
+	Control().time().setStopAt(upToTime);
+	Control().time().setOutputToFile(timeToWrite, timeName);
+	
+	return loop();
+
+	return true;
+}
+
+bool pFlow::grainDEMSystem::iterate(real upToTime)
+{
+	Control().time().setStopAt(upToTime);
+	return loop();
+	return true;
+}
+
+pFlow::real 
+	pFlow::grainDEMSystem::maxBounndingSphereSize()const
+{
+	real minD, maxD;
+	particles_->boundingSphereMinMax(minD, maxD);
+
+	return maxD;
+}

DEMSystems/grainDEMSystem/grainDEMSystem.hpp

@@ -0,0 +1,165 @@
+/*------------------------------- phasicFlow ---------------------------------
+      O        C enter of
+     O O       E ngineering and
+    O   O      M ultiscale modeling of
+   OOOOOOO     F luid flow       
+------------------------------------------------------------------------------
+  Copyright (C): www.cemf.ir
+  email: hamid.r.norouzi AT gmail.com
+------------------------------------------------------------------------------  
+Licence:
+  This file is part of phasicFlow code. It is a free software for simulating 
+  granular and multiphase flows. You can redistribute it and/or modify it under
+  the terms of GNU General Public License v3 or any other later versions. 
+ 
+  phasicFlow is distributed to help others in their research in the field of 
+  granular and multiphase flows, but WITHOUT ANY WARRANTY; without even the
+  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+-----------------------------------------------------------------------------*/
+
+#ifndef __grainDEMSystem_hpp__
+#define __grainDEMSystem_hpp__
+
+#include "DEMSystem.hpp"
+#include "property.hpp"
+#include "uniquePtr.hpp"
+#include "geometry.hpp"
+#include "grainFluidParticles.hpp"
+#include "interaction.hpp"
+#include "Insertions.hpp"
+#include "domainDistribute.hpp"
+
+
+namespace pFlow
+{
+
+class grainDEMSystem
+:
+	public DEMSystem
+{
+protected:
+	
+	// protected members 
+
+	uniquePtr<property> 			property_ = nullptr;
+
+	uniquePtr<geometry> 			geometry_ = nullptr;
+
+	uniquePtr<grainShape> 			grains_   = nullptr;
+
+	uniquePtr<grainFluidParticles>  particles_ = nullptr;
+
+	uniquePtr<grainInsertion> 		insertion_ = nullptr;
+
+	uniquePtr<interaction> 			interaction_ = nullptr;
+
+	uniquePtr<domainDistribute> 	particleDistribution_=nullptr;
+
+	// to be used for CPU communications 
+	ViewType1D<realx3, HostSpace> 	velocityHost_;
+
+	ViewType1D<realx3, HostSpace> 	positionHost_;
+
+	ViewType1D<real, HostSpace> 	diameterHost_;
+
+	bool 							requireRVel_ = false;
+
+	ViewType1D<realx3, HostSpace> 	rVelocityHost_;
+
+
+//  protected member functions
+	auto& Property()
+	{
+		return property_();
+	}
+
+	auto& Geometry()
+	{
+		return geometry_();
+	}
+
+	auto& Particles()
+	{
+		return particles_();
+	}
+
+	auto& Interaction()
+	{
+		return interaction_();
+	} 
+
+	bool loop();
+
+public:
+
+	TypeInfo("grainDEMSystem");
+
+	grainDEMSystem(
+		word  demSystemName,
+		const std::vector<box>& domains,
+		int argc, 
+		char* argv[],
+		bool requireRVel=false);
+
+	virtual ~grainDEMSystem();
+
+	grainDEMSystem(const grainDEMSystem&)=delete;
+
+	grainDEMSystem& operator = (const grainDEMSystem&)=delete;
+
+	add_vCtor(
+		DEMSystem,
+		grainDEMSystem,
+		word);
+
+
+	bool updateParticleDistribution(real extentFraction, const std::vector<box> domains) override;
+	 
+	int32 numParInDomain(int32 di)const override;
+	
+	std::vector<int32> numParInDomains()const override;
+
+	span<const int32> parIndexInDomain(int32 di)const override;
+
+	span<real> diameter() override;
+
+	span<real> courseGrainFactor() override;
+
+	span<realx3> acceleration() override;
+
+	span<realx3> velocity() override;
+
+	span<realx3> position() override;
+
+	span<realx3> rAcceleration() override;
+
+	span<realx3> rVelocity() override;
+
+	span<realx3> rPosition() override;
+
+	span<realx3> parFluidForce() override;
+
+	span<realx3> parFluidTorque() override;
+
+	bool sendFluidForceToDEM() override;
+
+	bool sendFluidTorqueToDEM() override;
+
+	bool beforeIteration() override;
+
+	bool iterate(
+		real upToTime, 
+		real timeToWrite, 
+		word timeName) override;
+
+	bool iterate(real upToTime) override;
+	
+	real maxBounndingSphereSize()const override;
+
+};
+
+
+} // pFlow
+
+#endif

DEMSystems/grainDEMSystem/grainFluidParticles.cpp

@@ -0,0 +1,107 @@
+/*------------------------------- phasicFlow ---------------------------------
+      O        C enter of
+     O O       E ngineering and
+    O   O      M ultiscale modeling of
+   OOOOOOO     F luid flow       
+------------------------------------------------------------------------------
+  Copyright (C): www.cemf.ir
+  email: hamid.r.norouzi AT gmail.com
+------------------------------------------------------------------------------  
+Licence:
+  This file is part of phasicFlow code. It is a free software for simulating 
+  granular and multiphase flows. You can redistribute it and/or modify it under
+  the terms of GNU General Public License v3 or any other later versions. 
+ 
+  phasicFlow is distributed to help others in their research in the field of 
+  granular and multiphase flows, but WITHOUT ANY WARRANTY; without even the
+  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+-----------------------------------------------------------------------------*/
+
+#include "grainFluidParticles.hpp"
+#include "grainFluidParticlesKernels.hpp"
+
+void pFlow::grainFluidParticles::checkHostMemory()
+{
+	if(fluidForce_.size()!=fluidForceHost_.size())
+	{
+		resizeNoInit(fluidForceHost_, fluidForce_.size());
+		resizeNoInit(fluidTorqueHost_, fluidTorque_.size());
+	}
+
+	// copy the data (if required) from device to host
+	courseGrainFactorHost_ = coarseGrainFactor().hostView();
+}
+
+pFlow::grainFluidParticles::grainFluidParticles(
+    systemControl &control,
+    const grainShape& grains)
+    : grainParticles(control, grains),
+      fluidForce_(
+          objectFile(
+              "fluidForce",
+              "",
+              objectFile::READ_IF_PRESENT,
+              objectFile::WRITE_ALWAYS),
+          dynPointStruct(),
+          zero3),
+      fluidTorque_(
+          objectFile(
+              "fluidTorque",
+              "",
+              objectFile::READ_IF_PRESENT,
+              objectFile::WRITE_NEVER),
+          dynPointStruct(),
+          zero3)
+{
+	checkHostMemory();
+} 
+
+bool pFlow::grainFluidParticles::beforeIteration()
+{
+	grainParticles::beforeIteration();
+	checkHostMemory();
+	return true;
+}
+
+
+bool pFlow::grainFluidParticles::iterate() 
+{
+	const auto ti = this->TimeInfo();
+	accelerationTimer().start();
+		pFlow::grainFluidParticlesKernels::acceleration(
+			control().g(),
+			mass().deviceViewAll(),
+			contactForce().deviceViewAll(),
+			fluidForce_.deviceViewAll(),
+			I().deviceViewAll(),
+			contactTorque().deviceViewAll(),
+			fluidTorque_.deviceViewAll(),
+			pStruct().activePointsMaskDevice(),
+			acceleration().deviceViewAll(),
+			rAcceleration().deviceViewAll()
+			);
+	accelerationTimer().end();
+	
+	intCorrectTimer().start();
+	
+		dynPointStruct().correct(ti.dt());
+	
+		rVelIntegration().correct(ti.dt(), rVelocity(), rAcceleration());
+	
+	intCorrectTimer().end();
+	
+	return true;
+}
+
+void pFlow::grainFluidParticles::fluidForceHostUpdatedSync()
+{
+	copy(fluidForce_.deviceView(), fluidForceHost_);
+	return;
+}
+
+void pFlow::grainFluidParticles::fluidTorqueHostUpdatedSync()
+{
+	copy(fluidTorque_.deviceView(), fluidTorqueHost_);
+	return;
+}

DEMSystems/grainDEMSystem/grainFluidParticles.hpp

@@ -0,0 +1,105 @@
+/*------------------------------- phasicFlow ---------------------------------
+      O        C enter of
+     O O       E ngineering and
+    O   O      M ultiscale modeling of
+   OOOOOOO     F luid flow       
+------------------------------------------------------------------------------
+  Copyright (C): www.cemf.ir
+  email: hamid.r.norouzi AT gmail.com
+------------------------------------------------------------------------------  
+Licence:
+  This file is part of phasicFlow code. It is a free software for simulating 
+  granular and multiphase flows. You can redistribute it and/or modify it under
+  the terms of GNU General Public License v3 or any other later versions. 
+ 
+  phasicFlow is distributed to help others in their research in the field of 
+  granular and multiphase flows, but WITHOUT ANY WARRANTY; without even the
+  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+-----------------------------------------------------------------------------*/
+
+/*! 
+   @class pFlow::grainFluidParticles
+    
+   @brief Class for managing grain particles with fluid interactions 
+   
+   This is a top-level class that contains the essential components for
+   defining grain prticles with fluid interactions in a DEM simulation.
+ */
+
+#ifndef __grainFluidParticles_hpp__
+#define __grainFluidParticles_hpp__ 
+
+#include "grainParticles.hpp"
+
+
+namespace pFlow
+{
+
+class grainFluidParticles
+:
+	public grainParticles 
+{
+protected:
+	
+	/// pointField of rotational acceleration of particles on device  
+	realx3PointField_D 		fluidForce_;
+
+	hostViewType1D<realx3> 	fluidForceHost_;
+
+	realx3PointField_D 		fluidTorque_;
+
+	hostViewType1D<realx3>	fluidTorqueHost_;
+
+	hostViewType1D<real> 	courseGrainFactorHost_;
+
+
+	void checkHostMemory();
+
+public:
+
+	/// construct from systemControl and property 
+	grainFluidParticles(systemControl &control, const grainShape& grains);
+
+	~grainFluidParticles() override = default;
+	
+	/// before iteration step 
+	bool beforeIteration() override;
+	
+	/// iterate particles 
+	bool iterate() override;	
+
+	auto& fluidForce()
+	{
+		return fluidForce_;
+	}
+
+	auto& fluidTorque()
+	{
+		return fluidTorque_;
+	}
+
+	auto& fluidForceHost()
+	{
+		return fluidForceHost_; 
+	}
+
+	auto& fluidTorqueHost()
+	{
+		return fluidTorqueHost_;
+	}
+
+	auto& courseGrainFactorHost()
+	{
+		return courseGrainFactorHost_;
+	}
+
+	void fluidForceHostUpdatedSync();
+
+	void fluidTorqueHostUpdatedSync();
+	
+}; //grainFluidParticles
+
+} // pFlow
+
+#endif //__sphereFluidParticles_hpp__

DEMSystems/grainDEMSystem/grainFluidParticlesKernels.hpp

@@ -0,0 +1,79 @@
+/*------------------------------- phasicFlow ---------------------------------
+      O        C enter of
+     O O       E ngineering and
+    O   O      M ultiscale modeling of
+   OOOOOOO     F luid flow       
+------------------------------------------------------------------------------
+  Copyright (C): www.cemf.ir
+  email: hamid.r.norouzi AT gmail.com
+------------------------------------------------------------------------------  
+Licence:
+  This file is part of phasicFlow code. It is a free software for simulating 
+  granular and multiphase flows. You can redistribute it and/or modify it under
+  the terms of GNU General Public License v3 or any other later versions. 
+ 
+  phasicFlow is distributed to help others in their research in the field of 
+  granular and multiphase flows, but WITHOUT ANY WARRANTY; without even the
+  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+-----------------------------------------------------------------------------*/
+
+#ifndef __grainFluidParticlesKernels_hpp__
+#define __grainFluidParticlesKernels_hpp__
+
+namespace pFlow::grainFluidParticlesKernels
+{
+
+using rpAcceleration = Kokkos::RangePolicy<
+			DefaultExecutionSpace,
+			Kokkos::Schedule<Kokkos::Static>,
+			Kokkos::IndexType<int32>
+			>;
+
+template<typename IncludeFunctionType>
+void acceleration( 
+	realx3		g,
+	deviceViewType1D<real>  	mass,
+	deviceViewType1D<realx3>  	force,
+	deviceViewType1D<realx3>  	fluidForce,
+	deviceViewType1D<real>  	I,
+	deviceViewType1D<realx3>  	torque,
+	deviceViewType1D<realx3>  	fluidTorque,
+	IncludeFunctionType 		incld,
+	deviceViewType1D<realx3> 	lAcc,
+	deviceViewType1D<realx3> 	rAcc
+	)
+{
+
+	auto activeRange = incld.activeRange();
+	if(incld.isAllActive())
+	{
+		Kokkos::parallel_for(
+		"pFlow::grainParticlesKernels::acceleration",
+		rpAcceleration(activeRange.first, activeRange.second),
+		LAMBDA_HD(int32 i){
+				lAcc[i] = (force[i]+fluidForce[i])/mass[i] + g;
+				rAcc[i] = (torque[i]+fluidTorque[i])/I[i];
+		});
+	}
+	else
+	{
+		Kokkos::parallel_for(
+		"pFlow::grainParticlesKernels::acceleration",
+		rpAcceleration(activeRange.first, activeRange.second),
+		LAMBDA_HD(int32 i){
+			if(incld(i))
+			{
+				lAcc[i] = (force[i]+fluidForce[i])/mass[i] + g;
+				rAcc[i] = (torque[i]+fluidTorque[i])/I[i];
+			}
+		});
+
+	}
+	
+	Kokkos::fence();
+}
+
+}
+
+#endif 

DEMSystems/sphereDEMSystem/sphereDEMSystem.cpp

@@ -19,6 +19,7 @@ Licence:
 -----------------------------------------------------------------------------*/
 
 #include "sphereDEMSystem.hpp"
+#include "vocabs.hpp"
 
 bool pFlow::sphereDEMSystem::loop()
 {
@@ -26,17 +27,16 @@ bool pFlow::sphereDEMSystem::loop()
 	do 
 	{
 		//
-		
 		if(! insertion_().insertParticles( 
+			Control().time().currentIter(),
 			Control().time().currentTime(),
 			Control().time().dt()	) )
 		{
 			fatalError<<
-			"particle insertion failed in sphereDFlow solver.\n";
+			"particle insertion failed in sphereDEMSystem.\n";
 			return false;
 		}	
 
-
 		geometry_->beforeIteration();
 		
 		interaction_->beforeIteration();
@@ -63,29 +63,37 @@ pFlow::sphereDEMSystem::sphereDEMSystem(
 		word  demSystemName,
 		const std::vector<box>& domains,
 		int argc, 
-		char* argv[])
+		char* argv[],
+		bool requireRVel)
 :
-	DEMSystem(demSystemName, domains, argc, argv)
+	DEMSystem(demSystemName, domains, argc, argv),
+	requireRVel_(requireRVel)
 { 
 	
-	REPORT(0)<<"\nReading proprties . . . "<<endREPORT;
+	REPORT(0)<<"\nReading proprties . . . "<<END_REPORT;
 	property_ = makeUnique<property>(
-    	Control().caseSetup().path()+propertyFile__);
+		propertyFile__,
+    	Control().caseSetup().path());
 		
-	REPORT(0)<< "\nCreating surface geometry for sphereDEMSystem . . . "<<endREPORT;
+
+	REPORT(0)<< "\nCreating surface geometry for sphereDEMSystem . . . "<<END_REPORT;
 	geometry_ = geometry::create(Control(), Property());
 
+	REPORT(0)<<"Reading shapes dictionary..."<<END_REPORT;
+	spheres_ = makeUnique<sphereShape>(
+		pFlow::shapeFile__, 
+		&Control().caseSetup(), 
+		Property());
 
-	REPORT(0)<<"\nReading sphere particles . . ."<<endREPORT;
+	REPORT(0)<<"\nReading sphere particles . . ."<<END_REPORT;
-	particles_ = makeUnique<sphereFluidParticles>(Control(), Property());
+	particles_ = makeUnique<sphereFluidParticles>(Control(), spheres_());
 
 
 	insertion_ = makeUnique<sphereInsertion>( 
-		Control().caseSetup().path()+insertionFile__, 
 		particles_(), 
-		particles_().shapes());
+		particles_().spheres());
 	
-	REPORT(0)<<"\nCreating interaction model for sphere-sphere contact and sphere-wall contact . . ."<<endREPORT;
+	REPORT(0)<<"\nCreating interaction model for sphere-sphere contact and sphere-wall contact . . ."<<END_REPORT;
 	interaction_ = interaction::create(
 		Control(),
 		Particles(),
@@ -98,6 +106,7 @@ pFlow::sphereDEMSystem::sphereDEMSystem(
 
 }
 
+
 pFlow::sphereDEMSystem::~sphereDEMSystem()
 {
 	
@@ -119,8 +128,8 @@ bool pFlow::sphereDEMSystem::updateParticleDistribution(
 	}
 
 	if(!particleDistribution_->locateParticles(
-			parPosition_, 
+			positionHost_, 
-			particles_->pStruct().activePointsMaskH()))
+			particles_->pStruct().activePointsMaskHost()))
 	{
 		fatalErrorInFunction<<
 		"error in locating particles among sub-domains"<<endl;
@@ -137,7 +146,7 @@ pFlow::int32
 }
 
 std::vector<pFlow::int32> 
-	pFlow::sphereDEMSystem::numParInDomain()const
+	pFlow::sphereDEMSystem::numParInDomains()const
 {
 	const auto& distribute = particleDistribution_();
 	int32 numDomains = distribute.numDomains();
@@ -156,31 +165,56 @@ pFlow::sphereDEMSystem::parIndexInDomain(int32 di)const
 	return particleDistribution_->particlesInDomain(di);
 }
 
-pFlow::span<pFlow::real> pFlow::sphereDEMSystem::parDiameter() 
+pFlow::span<pFlow::real> pFlow::sphereDEMSystem::diameter() 
 {	
-	return span<real>(parDiameter_.data(), parDiameter_.size());
+	return span<real>(diameterHost_.data(), diameterHost_.size());
 }
 
-pFlow::span<pFlow::realx3> pFlow::sphereDEMSystem::parVelocity()  
+pFlow::span<pFlow::real> pFlow::sphereDEMSystem::courseGrainFactor()
 {
-	return span<realx3>(parVelocity_.data(), parVelocity_.size());
+    return span<real>(nullptr, 0);
 }
 
-pFlow::span<pFlow::realx3> pFlow::sphereDEMSystem::parPosition()  
+pFlow::span<pFlow::realx3> pFlow::sphereDEMSystem::acceleration()
 {
-	return span<realx3>(parPosition_.data(), parPosition_.size());
+    return span<realx3>(nullptr, 0);
+}
+
+pFlow::span<pFlow::realx3> pFlow::sphereDEMSystem::velocity()  
+{
+	return span<realx3>(velocityHost_.data(), velocityHost_.size());
+}
+
+pFlow::span<pFlow::realx3> pFlow::sphereDEMSystem::position()  
+{
+	return span<realx3>(positionHost_.data(), positionHost_.size());
+}
+
+pFlow::span<pFlow::realx3> pFlow::sphereDEMSystem::rAcceleration()
+{
+    return span<realx3>(nullptr, 0);
+}
+
+pFlow::span<pFlow::realx3> pFlow::sphereDEMSystem::rVelocity()
+{
+    return span<realx3>(rVelocityHost_.data(), rVelocityHost_.size());
+}
+
+pFlow::span<pFlow::realx3> pFlow::sphereDEMSystem::rPosition()
+{
+    return span<realx3>(nullptr, 0);
 }
 
 pFlow::span<pFlow::realx3> pFlow::sphereDEMSystem::parFluidForce() 
 {
-	auto& hVec =  particles_->fluidForceHostAll();
+	auto& hVec =  particles_->fluidForceHost();
 	
 	return span<realx3>(hVec.data(), hVec.size());
 }
 
 pFlow::span<pFlow::realx3> pFlow::sphereDEMSystem::parFluidTorque() 
 {
-	auto& hVec =  particles_->fluidTorqueHostAll();
+	auto& hVec =  particles_->fluidTorqueHost();
 	return span<realx3>(hVec.data(), hVec.size());
 }
 
@@ -198,9 +232,14 @@ bool pFlow::sphereDEMSystem::sendFluidTorqueToDEM()
 
 bool pFlow::sphereDEMSystem::beforeIteration()
 {
-	parVelocity_ = particles_->dynPointStruct().velocityHostAll();
+	velocityHost_ = std::as_const(particles_()).velocity().hostView();
-	parPosition_ = particles_->dynPointStruct().pointPositionHostAll();
+	positionHost_ = std::as_const(particles_()).pointPosition().hostView();
-	parDiameter_ = particles_->diameter().hostVectorAll();
+	diameterHost_ = particles_->diameter().hostView();
+
+	if(requireRVel_)
+		rVelocityHost_ = std::as_const(particles_()).rVelocity().hostView();
+	
+
 	return true;
 }
 

DEMSystems/sphereDEMSystem/sphereDEMSystem.hpp

@@ -42,24 +42,31 @@ protected:
 	
 	// protected members 
 
-	uniquePtr<property> 		property_ = nullptr;
+	uniquePtr<property> 			property_ = nullptr;
 
-	uniquePtr<geometry> 		geometry_ = nullptr;
+	uniquePtr<geometry> 			geometry_ = nullptr;
 
-	uniquePtr<sphereFluidParticles> 	particles_ = nullptr;
+	uniquePtr<sphereShape> 			spheres_  = nullptr;
 
-	uniquePtr<sphereInsertion> 	insertion_ = nullptr;
+	uniquePtr<sphereFluidParticles> particles_ = nullptr;
 
-	uniquePtr<interaction> 		interaction_ = nullptr;
+	uniquePtr<sphereInsertion> 		insertion_ = nullptr;
 
-	uniquePtr<domainDistribute> particleDistribution_=nullptr;
+	uniquePtr<interaction> 			interaction_ = nullptr;
+
+	uniquePtr<domainDistribute> 	particleDistribution_=nullptr;
 
 	// to be used for CPU communications 
-	ViewType1D<realx3, HostSpace>  parVelocity_;
+	ViewType1D<realx3, HostSpace> 	velocityHost_;
 
-	ViewType1D<realx3, HostSpace>  parPosition_;
+	ViewType1D<realx3, HostSpace> 	positionHost_;
+
+	ViewType1D<real, HostSpace> 	diameterHost_;
+
+	bool 							requireRVel_ = false;
+
+	ViewType1D<realx3, HostSpace> 	rVelocityHost_;
 
-	ViewType1D<real, HostSpace> parDiameter_;
 
 //  protected member functions
 	auto& Property()
@@ -92,7 +99,8 @@ public:
 		word  demSystemName,
 		const std::vector<box>& domains,
 		int argc, 
-		char* argv[]);
+		char* argv[],
+		bool requireRVel=false);
 
 	virtual ~sphereDEMSystem();
 
@@ -110,15 +118,25 @@ public:
 	 
 	int32 numParInDomain(int32 di)const override;
 	
-	std::vector<int32> numParInDomain()const override;
+	std::vector<int32> numParInDomains()const override;
 
 	span<const int32> parIndexInDomain(int32 di)const override;
 
-	span<real> parDiameter() override;
+	span<real> diameter() override;
 
-	span<realx3> parVelocity() override;
+	span<real> courseGrainFactor() override;
 
-	span<realx3> parPosition() override;
+	span<realx3> acceleration() override;
+
+	span<realx3> velocity() override;
+
+	span<realx3> position() override;
+
+	span<realx3> rAcceleration() override;
+
+	span<realx3> rVelocity() override;
+
+	span<realx3> rPosition() override;
 
 	span<realx3> parFluidForce() override;
 

DEMSystems/sphereDEMSystem/sphereFluidParticles.cpp

@@ -21,85 +21,85 @@ Licence:
 #include "sphereFluidParticles.hpp"
 #include "sphereFluidParticlesKernels.hpp"
 
+void pFlow::sphereFluidParticles::checkHostMemory()
+{
+	if(fluidForce_.size()!=fluidForceHost_.size())
+	{
+		resizeNoInit(fluidForceHost_, fluidForce_.size());
+		resizeNoInit(fluidTorqueHost_, fluidTorque_.size());
+	}
+}
 
 pFlow::sphereFluidParticles::sphereFluidParticles(
-	systemControl &control,
+    systemControl &control,
-	const property& prop
+    const sphereShape& shpShape)
-)
+    : sphereParticles(control, shpShape),
-:
+      fluidForce_(
-	sphereParticles(control, prop),
+          objectFile(
-	fluidForce_(
+              "fluidForce",
-		this->time().emplaceObject<realx3PointField_HD>(
+              "",
-			objectFile(
+              objectFile::READ_IF_PRESENT,
-				"fluidForce",
+              objectFile::WRITE_ALWAYS),
-				"",
+          dynPointStruct(),
-				objectFile::READ_IF_PRESENT,
+          zero3),
-				objectFile::WRITE_ALWAYS
+      fluidTorque_(
-				),
+          objectFile(
-			pStruct(),
+              "fluidTorque",
-			zero3
+              "",
-			)
+              objectFile::READ_IF_PRESENT,
-		),
+              objectFile::WRITE_NEVER),
-	fluidTorque_(
+          dynPointStruct(),
-		this->time().emplaceObject<realx3PointField_HD>(
+          zero3)
-			objectFile(
+{
-				"fluidTorque",
+	checkHostMemory();
-				"",
+} 
-				objectFile::READ_IF_PRESENT,
-				objectFile::WRITE_ALWAYS
-				),
-			pStruct(),
-			zero3
-			)
-		)
-{} 
 
 bool pFlow::sphereFluidParticles::beforeIteration()
 {
 	sphereParticles::beforeIteration();
+	checkHostMemory();
+
 	return true;
 }
 
 
 bool pFlow::sphereFluidParticles::iterate() 
 {
-
+	const auto ti = this->TimeInfo();
-	accelerationTimer_.start();
+	accelerationTimer().start();
 		pFlow::sphereFluidParticlesKernels::acceleration(
 			control().g(),
-			mass().deviceVectorAll(),
+			mass().deviceViewAll(),
-			contactForce().deviceVectorAll(),
+			contactForce().deviceViewAll(),
-			fluidForce().deviceVectorAll(),
+			fluidForce_.deviceViewAll(),
-			I().deviceVectorAll(),
+			I().deviceViewAll(),
-			contactTorque().deviceVectorAll(),
+			contactTorque().deviceViewAll(),
-			fluidTorque().deviceVectorAll(),
+			fluidTorque_.deviceViewAll(),
-			pStruct().activePointsMaskD(),
+			pStruct().activePointsMaskDevice(),
-			accelertion().deviceVectorAll(),
+			acceleration().deviceViewAll(),
-			rAcceleration().deviceVectorAll()
+			rAcceleration().deviceViewAll()
 			);
-	accelerationTimer_.end();
+	accelerationTimer().end();
 	
-	intCorrectTimer_.start();
+	intCorrectTimer().start();
 	
-		dynPointStruct_.correct(this->dt(), accelertion_);
+		dynPointStruct().correct(ti.dt());
 	
-		rVelIntegration_().correct(this->dt(), rVelocity_, rAcceleration_);
+		rVelIntegration().correct(ti.dt(), rVelocity(), rAcceleration());
 	
-	intCorrectTimer_.end();
+	intCorrectTimer().end();
 	
 	return true;
 }
 
 void pFlow::sphereFluidParticles::fluidForceHostUpdatedSync()
 {
-	fluidForce_.modifyOnHost();
+	copy(fluidForce_.deviceView(), fluidForceHost_);
-	fluidForce_.syncViews();
 	return;
 }
 
 void pFlow::sphereFluidParticles::fluidTorqueHostUpdatedSync()
 {
-	fluidTorque_.modifyOnHost();
+	copy(fluidTorque_.deviceView(), fluidTorqueHost_);
-	fluidTorque_.syncViews();
 	return;
 }

DEMSystems/sphereDEMSystem/sphereFluidParticles.hpp

@@ -43,12 +43,17 @@ class sphereFluidParticles
 protected:
 	
 	/// pointField of rotational acceleration of particles on device  
-	realx3PointField_HD& 	fluidForce_;
+	realx3PointField_D 		fluidForce_;
 
-	realx3PointField_HD& 	fluidTorque_;
+	hostViewType1D<realx3> 	fluidForceHost_;
 
+	realx3PointField_D 		fluidTorque_;
 
-	void zeroFluidForce_H()
+	hostViewType1D<realx3>	fluidTorqueHost_;
+
+	void checkHostMemory();
+
+	/*void zeroFluidForce_H()
 	{
 		fluidForce_.fillHost(zero3);
 	}
@@ -56,12 +61,12 @@ protected:
 	void zeroFluidTorque_H()
 	{
 		fluidTorque_.fillHost(zero3);
-	}
+	}*/
 
 public:
 
 	/// construct from systemControl and property 
-	sphereFluidParticles(systemControl &control, const property& prop);
+	sphereFluidParticles(systemControl &control, const sphereShape& shpShape);
 	
 	/// before iteration step 
 	bool beforeIteration() override;
@@ -81,17 +86,16 @@ public:
 	}
 
 
-	auto& fluidForceHostAll()
+	auto& fluidForceHost()
 	{
-		return fluidForce_.hostVectorAll();
+		return fluidForceHost_; 
 	}
 
-	auto& fluidTorqueHostAll()
+	auto& fluidTorqueHost()
 	{
-		return fluidTorque_.hostVectorAll();
+		return fluidTorqueHost_;
 	}
 
-
 	void fluidForceHostUpdatedSync();
 
 	void fluidTorqueHostUpdatedSync();

DEMSystems/sphereDEMSystem/sphereFluidParticlesKernels.hpp

@@ -46,7 +46,7 @@ void acceleration(
 {
 
 	auto activeRange = incld.activeRange();
-	if(incld.allActive())
+	if(incld.isAllActive())
 	{
 		Kokkos::parallel_for(
 		"pFlow::sphereParticlesKernels::acceleration",

README.md

@@ -1,40 +1,66 @@
-<div align ="center">
+<div align="center">
-<img src="doc/phasicFlow_logo_github.png" style="width: 400px;">
+  <img src="doc/phasicFlow_logo_github.png" style="width: 400px;" alt="PhasicFlow Logo">
 </div>
 
+## **PhasicFlow: High-Performance Discrete Element Method Simulations**
 
-**PhasicFlow** is a parallel C++ code for performing DEM simulations. It can run on shared-memory multi-core computational units such as multi-core CPUs or GPUs (for now it works on CUDA-enabled GPUs). The parallelization method mainly relies on loop-level parallelization on a shared-memory computational unit. You can build and run PhasicFlow in serial mode on regular PCs, in parallel mode for multi-core CPUs, or build it for a GPU device to off-load computations to a GPU. In its current statues you can simulate millions of particles (up to 80M particles tested) on a single desktop computer. You can see the [performance tests of PhasicFlow](https://github.com/PhasicFlow/phasicFlow/wiki/Performance-of-phasicFlow) in the wiki page. 
+PhasicFlow is a robust, open-source C++ framework designed for the efficient simulation of granular materials using the Discrete Element Method (DEM). Leveraging parallel computing paradigms, PhasicFlow is capable of executing simulations on shared-memory multi-core architectures, including CPUs and NVIDIA GPUs (CUDA-enabled). The core parallelization strategy focuses on loop-level parallelism, enabling significant performance gains on modern hardware. Users can seamlessly transition between serial execution on standard PCs, parallel execution on multi-core CPUs (OpenMP), and accelerated simulations on GPUs. Currently, PhasicFlow supports simulations involving up to 80 million particles on a single desktop workstation. Detailed performance benchmarks are available on the [PhasicFlow Wiki](https://github.com/PhasicFlow/phasicFlow/wiki/Performance-of-phasicFlow).
 
-## How to build?
+**Scalable Parallelism: MPI Integration**
-You can build PhasicFlow for CPU and GPU executions. [Here is a complete step-by-step procedure](https://github.com/PhasicFlow/phasicFlow/wiki/How-to-Build-PhasicFlow).
 
-## Online code documentation
+Ongoing development includes the integration of MPI-based parallelization with dynamic load balancing. This enhancement will extend PhasicFlow's capabilities to distributed memory environments, such as multi-GPU workstations and high-performance computing clusters. Upon completion, PhasicFlow will offer six distinct execution modes:
-You can find a full documentation of the code, its features, and other related materials on [online documentation of the code](https://phasicflow.github.io/phasicFlow/)
 
-## How to use PhasicFlow?
+1.  **Serial Execution:** Single-core CPU.
-You can navigate into [tutorials folder](./tutorials) in the phasicFlow folder to see some simulation case setups. If you need more detailed discription, visit our [wiki page tutorials](https://github.com/PhasicFlow/phasicFlow/wiki/Tutorials).  
+2.  **Shared-Memory Parallelism:** Multi-core CPU (OpenMP).
+3.  **GPU Acceleration:** NVIDIA GPU (CUDA).
+4.  **Distributed-Memory Parallelism:** MPI.
+5.  **Hybrid Parallelism:** MPI + OpenMP.
+6.  **Multi-GPU Parallelism:** MPI + CUDA.
 
-## [PhasicFlowPlus](https://github.com/PhasicFlow/PhasicFlowPlus)
+# **Build and Installation**
-PhasicFlowPlus is and extension to PhasicFlow for simulating particle-fluid systems using resolved and unresolved CFD-DEM. [See the repository of this package.](https://github.com/PhasicFlow/PhasicFlowPlus)
+
+PhasicFlow can be compiled for both CPU and GPU execution.
+
+* **Current Development (v-1.0):** Comprehensive build instructions are available [here](https://github.com/PhasicFlow/phasicFlow/wiki/How-to-build-PhasicFlow%E2%80%90v%E2%80%901.0).
+* **Latest Release (v-0.1):** Detailed build instructions are available [here](https://github.com/PhasicFlow/phasicFlow/wiki/How-to-Build-PhasicFlow).
+
+# **Comprehensive Documentation**
+
+In-depth documentation, including code structure, features, and usage guidelines, is accessible via the [online documentation portal](https://phasicflow.github.io/phasicFlow/).
+
+## **Tutorials and Examples**
+
+Practical examples and simulation setups are provided in the [tutorials directory](./tutorials). For detailed explanations and step-by-step guides, please refer to the [tutorial section on the PhasicFlow Wiki](https://github.com/PhasicFlow/phasicFlow/wiki/Tutorials).
+
+# **PhasicFlowPlus: Coupled CFD-DEM Simulations**
+
+PhasicFlowPlus is an extension of PhasicFlow that facilitates the simulation of particle-fluid systems using resolved and unresolved CFD-DEM methods. The repository for PhasicFlowPlus can be found [here](https://github.com/PhasicFlow/PhasicFlowPlus).
 
 
-## Supporting packages
+# How to cite PhasicFlow?
-* [Kokkos](https://github.com/kokkos/kokkos) from National Technology & Engineering Solutions of Sandia, LLC (NTESS)
-* [CLI11 1.8](https://github.com/CLIUtils/CLI11) from University of Cincinnati.
 
-## How to cite PhasicFlow
 If you are using PhasicFlow in your research or industrial work, cite the following [article](https://www.sciencedirect.com/science/article/pii/S0010465523001662):
+
 ```
-@article{NOROUZI2023108821,
+@article
-title = {PhasicFlow: A parallel, multi-architecture open-source code for DEM simulations},
+{
-journal = {Computer Physics Communications},
+  NOROUZI2023108821,
-volume = {291},
+  title = {PhasicFlow: A parallel, multi-architecture open-source code for DEM simulations},
-pages = {108821},
+  journal = {Computer Physics Communications},
-year = {2023},
+  volume = {291},
-issn = {0010-4655},
+  pages = {108821},
-doi = {https://doi.org/10.1016/j.cpc.2023.108821},
+  year = {2023},
-url = {https://www.sciencedirect.com/science/article/pii/S0010465523001662},
+  issn = {0010-4655},
-author = {H.R. Norouzi},
+  doi = {https://doi.org/10.1016/j.cpc.2023.108821},
-keywords = {Discrete element method, Parallel computing, CUDA, GPU, OpenMP, Granular flow}
+  url = {https://www.sciencedirect.com/science/article/pii/S0010465523001662},
+  author = {H.R. Norouzi},
+  keywords = {Discrete element method, Parallel computing, CUDA, GPU, OpenMP, Granular flow}
 }
 ```
+
+# **Dependencies**
+
+PhasicFlow relies on the following external libraries:
+
+* **Kokkos:** A performance portability ecosystem developed by National Technology & Engineering Solutions of Sandia, LLC (NTESS). ([https://github.com/kokkos/kokkos](https://github.com/kokkos/kokkos))
+* **CLI11 1.8:** A command-line interface parser developed by the University of Cincinnati. ([https://github.com/CLIUtils/CLI11](https://github.com/CLIUtils/CLI11))

benchmarks/rotatingDrum_4MParticles/caseSetup/interaction

@@ -3,57 +3,58 @@
 |  copyright: www.cemf.ir                                                     | 
 \* ------------------------------------------------------------------------- */ 
 
-objectName interaction;
+objectName     interaction;
-objectType dicrionary;
+objectType     dictionary;
+fileFormat     ASCII;
+
+/*---------------------------------------------------------------------------*/
 
 materials   (glassMat wallMat); // a list of materials names
+
 densities   (2500.0 2500);      // density of materials [kg/m3]
 
 contactListType   sortedContactList;
 
-model
-{
-   contactForceModel nonLinearLimited;
-   rollingFrictionModel normal;
-
-   Yeff (1.0e6 1.0e6  // Young modulus [Pa]
-               1.0e6);
-   
-   Geff (0.8e6 0.8e6  // Shear modulus [Pa]
-               0.8e6);
-
-   nu    (0.25 0.25  // Poisson's ratio [-]
-               0.25);
-
-   en (0.97  0.85   // coefficient of normal restitution
-             1.00);
-
-   et (1.0   1.0    // coefficient of tangential restitution 
-             1.0);
-
-   mu (0.65  0.65   // dynamic friction 
-             0.65);
-
-   mur (0.1  0.1    // rolling friction 
-             0.1);
-        
-}
-
 contactSearch
 {
-   method         NBS;           
+    method         NBS;
-   wallMapping    cellMapping;   
 
-   NBSInfo
+    updateInterval   10;
-   {
-      updateFrequency 10;        // each 20 timesteps, update neighbor list 
-      sizeRatio      1.05;       // bounding box size to particle diameter (max)
-   }
 
-   cellMappingInfo
+    sizeRatio       1.1;
-   {
-      updateFrequency 10;        // each 20 timesteps, update neighbor list  
-      cellExtent     0.6;        // bounding box for particle-wall search (> 0.5)
-   }
 
+    cellExtent     0.55;
+
+    adjustableBox   Yes;
 }
+
+model
+{
+    contactForceModel    nonLinearLimited;
+
+    rollingFrictionModel normal;
+    
+    /*
+       Property (glassMat-glassMat      glassMat-wallMat
+                                        wallMat-wallMat);
+    */
+
+    Yeff (1.0e6  1.0e6  
+                 1.0e6);                                    // Young modulus [Pa]
+   
+    Geff (0.8e6  0.8e6  
+                 0.8e6);                                    // Shear modulus [Pa]
+
+    nu   (0.25   0.25  
+                 0.25);                                     // Poisson's ratio [-]
+
+    en   (0.97   0.85   
+                 1.00);                                     // coefficient of normal restitution
+
+    mu   (0.65   0.65   
+                 0.65);                                     // dynamic friction 
+
+    mur  (0.1    0.1    
+                 0.1);                                      // rolling friction 
+}
+

benchmarks/rotatingDrum_4MParticles/caseSetup/particleInsertion

@@ -3,12 +3,10 @@
 |  copyright: www.cemf.ir                                                     | 
 \* ------------------------------------------------------------------------- */ 
 
-objectName particleInsertion;
+objectName     particleInsertion;
-objectType dicrionary;
+objectType     dicrionary;
-
+fileFormat     ASCII;
-
+
-active  no;          // is insertion active?
+active  No;          // is insertion active?
-
-collisionCheck No;   // not implemented for yes
 
 

benchmarks/rotatingDrum_4MParticles/caseSetup/shapes

@@ -2,11 +2,14 @@
 |  phasicFlow File                                                            | 
 |  copyright: www.cemf.ir                                                     | 
 \* ------------------------------------------------------------------------- */ 
-objectName 	sphereDict;
+
-objectType 	sphereShape;
+objectName     shapes;
-fileFormat  ASCII;
+objectType     dictionary;
+fileFormat     ASCII;
 /*---------------------------------------------------------------------------*/
 
-names 		(lightSphere heavySphere); 	// names of shapes 
+names          (glassBead);    // names of shapes 
-diameters 	(0.007 0.007);				// diameter of shapes 
+
-materials	(lightMat heavyMat);		// material names for shapes 
+diameters      (0.003);        // diameter of shapes 
+
+materials      (glassMat);     // material names for shapes 

benchmarks/rotatingDrum_4MParticles/caseSetup/sphereShape

@@ -1,11 +0,0 @@
-/* -------------------------------*- C++ -*--------------------------------- *\ 
-|  phasicFlow File                                                            | 
-|  copyright: www.cemf.ir                                                     | 
-\* ------------------------------------------------------------------------- */ 
-
-objectName 	sphereDict;
-objectType 	sphereShape;
-
-names 		(glassBead); 	// names of shapes 
-diameters 	(0.003);		// diameter of shapes 
-materials	(glassMat);		// material names for shapes 

benchmarks/rotatingDrum_4MParticles/settings/domainDict

@@ -0,0 +1,46 @@
+/* -------------------------------*- C++ -*--------------------------------- *\ 
+|  phasicFlow File                                                            | 
+|  copyright: www.cemf.ir                                                     | 
+\* ------------------------------------------------------------------------- */  
+objectName     domainDict;
+objectType     dictionary;
+fileFormat     ASCII;
+/*---------------------------------------------------------------------------*/
+globalBox                                        // Simulation domain: every particles that goes outside this domain will be deleted
+{
+    min (-0.2 -0.2 -0.0);
+    max ( 0.2  0.2  1.6);
+}
+
+boundaries
+{
+    left
+    {
+        type    exit;                            // other options: periodic, reflective 
+    }
+
+    right
+    {
+        type     exit;                           // other options: periodic, reflective 
+    }
+
+    bottom
+    {
+        type     exit;                           // other options: periodic, reflective 
+    }
+
+    top
+    {
+        type     exit;                           // other options: periodic, reflective 
+    }
+
+    rear
+    {
+        type     exit;                           // other options: periodic, reflective 
+    }
+
+    front
+    {
+        type     exit;                           // other options: periodic, reflective 
+    }
+}

benchmarks/rotatingDrum_4MParticles/settings/geometryDict

@@ -3,61 +3,84 @@
 |  copyright: www.cemf.ir                                                     | 
 \* ------------------------------------------------------------------------- */  
 
-objectName 	geometryDict;
+objectName     geometryDict;
-objectType 	dictionary;
+objectType     dictionary;
+fileFormat     ASCII;
 
-motionModel rotatingAxisMotion; 
+motionModel rotatingAxis;         // motion model: rotating object around an axis
+
+rotatingAxisInfo                  // information for rotatingAxisMotion motion model 
+{
+    rotAxis 
+    {
+        p1    (0.0 0.0 0.0);      // first point for the axis of rotation    
+        
+        p2    (0.0 0.0 1.0);      // second point for the axis of rotation    
+        
+        omega 1.256;              // rotation speed (rad/s) => 12 rpm
+    }
+}
 
 surfaces
 {
+    cylinder
+    {
+        type        cylinderWall;          // type of the wall
         
-	cylinder
+        p1          (0.0 0.0 0.0);         // begin point of cylinder axis
-	{
-		type cylinderWall;  
-		p1 (0.0 0.0 0.0);   
-		p2 (0.0 0.0 1.6);  
-		radius1 0.2;		
-		radius2 0.2;		
-		resolution 24;      
-		material wallMat;   
-		motion rotAxis;
-	}
            
+        p2          (0.0 0.0 1.6);         // end point of cylinder axis
         
-	wall1
+        radius1     0.2;                   // radius at p1
-	{
-		type planeWall;			
-		p1 (-0.2 -0.2 0.0);	
-		p2 ( 0.2 -0.2 0.0);   
-		p3 ( 0.2  0.2 0.0);   
-		p4 (-0.2  0.2 0.0);   
-		material wallMat;     
-		motion rotAxis;		
-	}
         
-	/*
+        radius2     0.2;                   // radius at p2
-	This is a plane wall at the front end of cylinder
-	*/
-	wall2
-	{
-		type planeWall;
-		p1 (-0.2 -0.2 1.6);
-		p2 ( 0.2 -0.2 1.6);
-		p3 ( 0.2  0.2 1.6);
-		p4 (-0.2  0.2 1.6);
-		material wallMat;
-		motion rotAxis;
-	}
         
-}
+        resolution  24;                    // number of divisions
-
+        
-// information for rotatingAxisMotion motion model 
+        material    wallMat;               // material name of this wall
-rotatingAxisMotionInfo
+        
-{
+        motion      rotAxis;               // motion component name 
-	rotAxis 
+    }
-	{
+
-		p1 (0.0 0.0 0.0);	
+    /*
-		p2 (0.0 0.0 1.0);	
+        This is a plane wall at the rear end of cylinder
-		omega 1.256; 		// rotation speed (rad/s) => 12 rpm
+    */
-	}
+    
+    wall1
+    {
+        type      planeWall;               // type of the wall  
+        
+        p1        (-0.2 -0.2 0.0);         // first point of the wall
+        
+        p2        ( 0.2 -0.2 0.0);         // second point
+        
+        p3        ( 0.2  0.2 0.0);         // third point
+        
+        p4        (-0.2  0.2 0.0);         // fourth point 
+        
+        material  wallMat;                 // material name of the wall  
+        
+        motion    rotAxis;                 // motion component name 
+    }
+
+    /*
+        This is a plane wall at the front end of cylinder
+    */
+    
+    wall2
+    {
+        type      planeWall;               // type of the wall
+        
+        p1        (-0.2 -0.2 1.6);         // first point of the wall
+        
+        p2        ( 0.2 -0.2 1.6);         // second point
+        
+        p3        ( 0.2  0.2 1.6);         // third point
+        
+        p4        (-0.2  0.2 1.6);         // fourth point 
+        
+        material  wallMat;                 // material name of the wall  
+        
+        motion    rotAxis;                 // motion component name 
+    }
 }

benchmarks/rotatingDrum_4MParticles/settings/particlesDict

@@ -3,42 +3,45 @@
 |  copyright: www.cemf.ir                                                     | 
 \* ------------------------------------------------------------------------- */  
 
-objectName 	particlesDict;
+objectName     particlesDict;
-objectType 	dictionary;
+objectType     dictionary;
+fileFormat     ASCII;
 
 setFields
 {
+    defaultValue 
+    {
+        velocity         realx3     (0 0 0);     // linear velocity (m/s)
+        acceleration     realx3     (0 0 0);     // linear acceleration (m/s2)
+        rotVelocity      realx3     (0 0 0);     // rotational velocity (rad/s)
+        shapeName        word       glassBead;   // name of the particle shape 
+    }
 
-	defaultValue 
+    selectors
-	{
+    {}
-		velocity 		realx3 	(0 0 0); // linear velocity (m/s)
-		acceleration 	realx3 	(0 0 0); // linear acceleration (m/s2)
-		rotVelocity 	realx3 	(0 0 0); // rotational velocity (rad/s)
-		shapeName 		word	glassBead; // name of the particle shape 
-	}
-
-	selectors
-	{}
 }
 
 positionParticles
 {
-	method positionOrdered;     		
+    method ordered;
 
-	maxNumberOfParticles 	4000001; 
+    orderedInfo
-	mortonSorting 			Yes;    
+    {
+        diameter   0.003;           // minimum space between centers of particles
         
-	cylinder  // box for positioning particles 
+        numPoints  4000000;         // number of particles in the simulation 
-	{
-		p1 ( 0.0  0.0 0.01);    // lower corner point of the box 
-		p2 ( 0.0  0.0 1.59);	// upper corner point of the box 
-		radius 0.195;
-	}
         
-	positionOrderedInfo
+        axisOrder  (z x y);         // axis order for filling the space with particles
-	{
+    }
-		diameter 0.003; 	// minimum space between centers of particles
+
-		numPoints 4000000; 	// number of particles in the simulation 
+    regionType cylinder;            // other options: box and sphere    
-		axisOrder (z x y);  // axis order for filling the space with particles
+
-	}
+    cylinderInfo                    // cylinder for positioning particles 
+    {
+        p1     (0.0  0.0  0.01);    // lower corner point of the box 
+        
+        p2     (0.0  0.0  1.59);    // upper corner point of the box 
+        
+        radius 0.195;               // radius of cylinder 
+    }
 }

benchmarks/rotatingDrum_4MParticles/settings/settingsDict

@@ -2,31 +2,33 @@
 |  phasicFlow File                                                            | 
 |  copyright: www.cemf.ir                                                     | 
 \* ------------------------------------------------------------------------- */  
-objectName 	settingsDict;
+objectName    settingsDict;
-objectType 	dictionary;;
+objectType    dictionary;
+fileFormat    ASCII;
+/*---------------------------------------------------------------------------*/
+run             rotatingDrum_4MParticles;
 
-run 			rotatingDrum_1;
+dt              0.00001;      // time step for integration (s)
 
-dt 				0.00001; 	// time step for integration (s)
+startTime       0;            // start time for simulation 
 
-startTime 		0; 			// start time for simulation 
+endTime         10;           // end time for simulation 
 
-endTime 		10; 		// end time for simulation 
+saveInterval    0.2;          // time interval for saving the simulation
 
-saveInterval 	0.2; 		// time interval for saving the simulation
+timePrecision   5;            // maximum number of digits for time folder 
 
-timePrecision   5;			// maximum number of digits for time folder 
+g               (0 -9.8 0);   // gravity vector (m/s2) 
 
-g 				(0 -9.8 0); // gravity vector (m/s2) 
+includeObjects (diameter);                     // save necessary (i.e., required) data on disk
 
-domain 
+// exclude unnecessary data from saving on disk
-{
+excludeObjects (rVelocity.dy1 pStructPosition.dy1 pStructVelocity.dy1); 
-	min (-0.2 -0.2 -0.0);
-	max ( 0.2  0.2  1.6);
-}
 
-integrationMethod 		AdamsBashforth3; 	// integration method 
+integrationMethod         AdamsBashforth2;     // integration method 
 
-timersReport 			Yes;  	
+writeFormat               binary;              // data writting format (ascii or binary)
 
-timersReportInterval   	0.01;	
+timersReport              Yes;      
+
+timersReportInterval      0.05;    

cmake/autoComplete

@@ -0,0 +1,71 @@
+PF_cFlags="--description --help --version"
+AllTimeFolders=
+__getAllTime(){
+	files=( $(ls) )
+	deleteFiles=(settings caseSetup cleanThisCase VTK runThisCase stl postprocess postProcess) 
+	declare -A delk
+	for del in "${deleteFiles[@]}" ; do delk[$del]=1 ; done
+		# Tag items to remove, based on
+	for k in "${!files[@]}" ; do
+		[ "${delk[${files[$k]}]-}" ] && unset 'files[k]'
+	done
+		# Compaction
+	COMPREPLY=("${files[@]}")
+	AllTimeFolders="${files[@]}"
+}
+
+__getFields(){
+	__getAllTime
+	local -A unique_files=()
+
+	for dir in $AllTimeFolders; do
+	  # Check if the directory exists
+	  if [ ! -d "$dir" ]; then
+		continue  # Skip to the next directory
+	  fi
+		  
+	  files_in_dir=$(find "$dir" -maxdepth 1 -type f -printf '%f\n' | sort -u)
+	  
+	# Add filenames to the associative array (duplicates will be overwritten)
+	  while IFS= read -r filename; do
+		unique_files["$filename"]=1 # Just the key is important, value can be anything
+	  done <<< "$files_in_dir"
+	  
+	done
+	COMPREPLY=("${!unique_files[@]}")
+	AllTimeFolders=
+}
+
+_pFlowToVTK(){
+    if [ "$3" == "--time" ]  ; then
+        __getAllTime
+    elif [ "$3" == "--fields" ]; then 
+    	__getFields
+    else
+        COMPREPLY=( $(compgen -W "$PF_cFlags --binary --no-geometry --no-particles --out-folder --time --separate-surfaces --fields" -- "$2") )
+    fi
+}
+complete -F _pFlowToVTK pFlowToVTK
+
+_postprocessPhasicFlow(){
+    if [ "$3" == "--time" ]; then
+      __getAllTime
+    else
+      COMPREPLY=( $(compgen -W "$PF_cFlags --out-folder --time --zeroFolder" -- "$2") )
+    fi
+}
+complete -F _postprocessPhasicFlow postprocessPhasicFlow
+
+complete -W "$PF_cFlags --positionParticles-only --setFields-only --coupling" particlesPhasicFlow
+
+complete -W "$PF_cFlags --coupling" geometryPhasicFlow 
+
+complete -W "$PF_cFlags --coupling" iterateGeometry
+
+complete -W "$PF_cFlags" iterateSphereParticles
+
+complete -W "$PF_cFlags" sphereGranFlow
+
+complete -W "$PF_cFlags" grainGranFlow
+
+complete -W "$PF_cFlags" checkPhasicFlow

cmake/bashrc

@@ -1,8 +1,7 @@
 
-export pFlow_PROJECT_VERSION=v0.1
+export pFlow_PROJECT_VERSION=v-1.0
-
-export pFlow_PROJECT=phasicFlow
 
+export pFlow_PROJECT="phasicFlow-$pFlow_PROJECT_VERSION"
 
 projectDir="$HOME/PhasicFlow" 
 kokkosDir="$HOME/Kokkos/kokkos"
@@ -20,6 +19,8 @@ export pFlow_SRC_DIR="$pFlow_PROJECT_DIR/src"
 
 export Kokkos_DIR="$kokkosDir"
 
+export Zoltan_DIR="$projectDir/Zoltan"
+
 # Cleanup variables (done as final statement for a clean exit code)
 unset projectDir
 
@@ -27,5 +28,7 @@ export PATH="$pFlow_BIN_DIR:$PATH"
 
 export LD_LIBRARY_PATH="$pFlow_LIB_DIR:$LD_LIBRARY_PATH"
 
+export LD_LIBRARY_PATH="$Zoltan_DIR/lib:$LD_LIBRARY_PATH"
 
+source $pFlow_PROJECT_DIR/cmake/autoComplete 
 #------------------------------------------------------------------------------

cmake/globals.cmake

@@ -2,3 +2,52 @@
 set(validFiles)
 list(APPEND validFiles *.C *.cpp *.cxx *.c *.cu *.H *.hpp *.hxx *.h *.cuh)
 
+macro(Kokkos_cmake_settings)
+
+#mark_as_advanced(FORCE var Kokkos_ENABLE_CUDA_LAMBDA)
+mark_as_advanced(FORCE var Kokkos_CXX_STANDARD)
+#mark_as_advanced(FORCE var Kokkos_ENABLE_CUDA_CONSTEXPR)
+mark_as_advanced(FORCE var Kokkos_ENABLE_OPENMP)
+mark_as_advanced(FORCE var Kokkos_ENABLE_SERIAL)
+mark_as_advanced(FORCE var Kokkos_ENABLE_CUDA)
+mark_as_advanced(FORCE var Kokkos_ENABLE_HIP)
+mark_as_advanced(FORCE var Kokkos_ENABLE_AGGRESSIVE_VECTORIZATION)
+mark_as_advanced(FORCE var Kokkos_ENABLE_BENCHMARKS)
+mark_as_advanced(FORCE var Kokkos_ENABLE_COMPILE_AS_CMAKE_LANGUAGE)
+mark_as_advanced(FORCE var Kokkos_ENABLE_CUDA_LDG_INTRINSIC)
+mark_as_advanced(FORCE var Kokkos_ENABLE_CUDA_RELOCATABLE_DEVICE_CODE)
+mark_as_advanced(FORCE var Kokkos_ENABLE_CUDA_UVM)
+mark_as_advanced(FORCE var Kokkos_ENABLE_DEPRECATED_CODE_3)
+mark_as_advanced(FORCE var Kokkos_ENABLE_DEPRECATED_CODE_4)
+mark_as_advanced(FORCE var Kokkos_ENABLE_DEPRECATION_WARNINGS)
+mark_as_advanced(FORCE var Kokkos_ENABLE_DESUL_ATOMICS_EXTERNAL)
+mark_as_advanced(FORCE var Kokkos_ENABLE_EXAMPLES)
+mark_as_advanced(FORCE var Kokkos_ENABLE_HEADER_SELF_CONTAINMENT_TESTS)
+mark_as_advanced(FORCE var Kokkos_ENABLE_HIP_MULTIPLE_KERNEL_INSTANTIATIONS)
+mark_as_advanced(FORCE var Kokkos_ENABLE_HIP_RELOCATABLE_DEVICE_CODE)
+mark_as_advanced(FORCE var Kokkos_ENABLE_HPX)
+mark_as_advanced(FORCE var Kokkos_ENABLE_HWLOC)
+mark_as_advanced(FORCE var Kokkos_ENABLE_IMPL_CUDA_MALLOC_ASYNC)
+mark_as_advanced(FORCE var Kokkos_ENABLE_IMPL_HPX_ASYNC_DISPATCH)
+mark_as_advanced(FORCE var Kokkos_ENABLE_LARGE_MEM_TESTS)
+mark_as_advanced(FORCE var Kokkos_ENABLE_DEBUG_DUALVIEW_MODIFY_CHECK)
+mark_as_advanced(FORCE var Kokkos_ENABLE_LIBQUADMATH)
+mark_as_advanced(FORCE var Kokkos_ENABLE_LIBRT)
+mark_as_advanced(FORCE var Kokkos_ENABLE_MEMKIND)
+mark_as_advanced(FORCE var Kokkos_ENABLE_ONEDPL)
+mark_as_advanced(FORCE var Kokkos_ENABLE_OPENACC)
+mark_as_advanced(FORCE var Kokkos_ENABLE_OPENMPTARGET)
+mark_as_advanced(FORCE var Kokkos_ENABLE_ROCM)
+mark_as_advanced(FORCE var Kokkos_ENABLE_SYCL)
+mark_as_advanced(FORCE var Kokkos_ENABLE_TESTS)
+mark_as_advanced(FORCE var Kokkos_ENABLE_THREADS)
+mark_as_advanced(FORCE var Kokkos_ENABLE_TUNING)
+mark_as_advanced(FORCE var Kokkos_ENABLE_UNSUPPORTED_ARCHS)
+mark_as_advanced(FORCE var Kokkos_HPX_DIR)
+mark_as_advanced(FORCE var Kokkos_HWLOC_DIR)
+mark_as_advanced(FORCE var Kokkos_MEMKIND_DIR)
+mark_as_advanced(FORCE var Kokkos_ROCM_DIR)
+mark_as_advanced(FORCE var Kokkos_THREADS_DIR)
+
+endmacro()
+

cmake/makeExecutableGlobals.cmake

@@ -31,8 +31,8 @@ target_include_directories(${target_name}
 
 message(STATUS "\nCreating make file for executable ${target_name}")
 message(STATUS "  ${target_name} link libraries are: ${${target_link_libs}}")
-message(STATUS "  ${target_name} source files are: ${source_files}")
+#message(STATUS "  ${target_name} source files are: ${${source_files}}")
-message(STATUS "  ${target_name} include dirs are: ${includeDirs}\n")
+#message(STATUS "  ${target_name} include dirs are: ${includeDirs}\n")
 
 
 install(TARGETS ${target_name} DESTINATION bin)

cmake/makeLibraryGlobals.cmake

@@ -41,8 +41,8 @@ target_include_directories(${target_name}
 
 message(STATUS "\nCreating make file for library ${target_name}")
 message(STATUS "  ${target_name} link libraries are: ${${target_link_libs}}")
-message(STATUS "  ${target_name} source files are: ${source_files}")
+#message(STATUS "  ${target_name} source files are: ${source_files}")
-message(STATUS "  ${target_name} include dirs are: ${includeDirs}\n")
+#message(STATUS "  ${target_name} include dirs are: ${includeDirs}\n \n")
 
 install(TARGETS ${target_name} DESTINATION lib)
 install(FILES ${includeFiles}  DESTINATION include/${target_name})

cmake/preReq.cmake

@@ -0,0 +1,54 @@
+if(pFlow_STD_Parallel_Alg)
+    # Check if libtbb-dev is installed
+    execute_process(
+        COMMAND dpkg -s libtbb-dev
+        RESULT_VARIABLE TBB_IS_INSTALLED
+        OUTPUT_QUIET
+        ERROR_QUIET)
+
+    if(NOT TBB_IS_INSTALLED EQUAL 0)
+        message(STATUS "libtbb-dev not found. Installing libtbb-dev...")
+        execute_process(
+            COMMAND sudo apt-get update
+            COMMAND sudo apt-get install -y libtbb-dev
+            RESULT_VARIABLE TBB_INSTALL_RESULT)
+            
+        if(NOT TBB_INSTALL_RESULT EQUAL 0)
+            message(FATAL_ERROR "Failed to install libtbb-dev")
+        endif()
+    else()
+        message(STATUS "libtbb-dev is already installed.")
+    endif()
+endif()
+
+
+# Kokkos folder creation 
+set(Kokkos_Source_DIR $ENV{HOME}/Kokkos/kokkos)
+
+if(NOT EXISTS "${Kokkos_Source_DIR}/CMakeLists.txt")
+
+    # Check CMake version and set policy CMP0169 if CMake version is 3.30 or higher
+    if(${CMAKE_VERSION} VERSION_GREATER_EQUAL "3.30")
+        cmake_policy(SET CMP0169 OLD)
+    endif()
+
+    include(FetchContent)
+    FetchContent_Declare(
+        kokkos
+        GIT_REPOSITORY https://github.com/kokkos/kokkos.git
+        GIT_TAG 4.4.01
+    )
+    
+    FetchContent_GetProperties(kokkos)
+    if(NOT kokkos_POPULATED)
+        message(STATUS "Kokkos source directory not found. Downloading Kokkos version 4.4.1 ...")
+        FetchContent_Populate(kokkos)
+        set(Kokkos_Source_DIR ${kokkos_SOURCE_DIR})
+    endif()
+
+endif()
+
+message(STATUS "Kokkos source directory is ${Kokkos_Source_DIR}")
+add_subdirectory(${Kokkos_Source_DIR} ./kokkos)
+#Kokkos_cmake_settings()
+

phasicFlowConfig.H.in

@@ -5,5 +5,6 @@
 #cmakedefine pFlow_Build_Serial
 #cmakedefine pFlow_Build_OpenMP
 #cmakedefine pFlow_Build_Cuda
-#cmakedefine USE_STD_PARALLEL_ALG
+#cmakedefine pFlow_STD_Parallel_Alg
 #cmakedefine pFlow_Build_Double
+#cmakedefine pFlow_Build_MPI

solvers/CMakeLists.txt

@@ -1,7 +1,9 @@
 
 
-#add_subdirectory(iterateSphereParticles)
+add_subdirectory(iterateSphereParticles)
 
 add_subdirectory(iterateGeometry)
 
 add_subdirectory(sphereGranFlow)
+
+add_subdirectory(grainGranFlow)

solvers/grainGranFlow/CMakeLists.txt

@@ -0,0 +1,7 @@
+
+set(source_files
+grainGranFlow.cpp
+)
+set(link_lib Kokkos::kokkos phasicFlow Particles Geometry Property Interaction Interaction Utilities)
+
+pFlow_make_executable_install(grainGranFlow source_files link_lib)

solvers/grainGranFlow/createDEMComponents.hpp

@@ -17,35 +17,41 @@ Licence:
   implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 
 -----------------------------------------------------------------------------*/
-
+REPORT(0)<<"Reading shape dictionary ..."<<END_REPORT;
-template<typename T, typename... properties>
+pFlow::grainShape grains
-void insertSetElementH
 (
-	ViewType1D<T, properties...>& view,
+	pFlow::shapeFile__,
-	hostViewType1D<label>& selected,
+	&Control.caseSetup(),
-	T val
+	proprties
 );
 
-template<typename T, typename... properties>
+//
-void insertSetElementH
+REPORT(0)<<"\nReading sphere particles . . ."<<END_REPORT;
-(
+pFlow::grainParticles grnParticles(Control, grains);
-	ViewType1D<T, properties...>& view,
-	hostViewType1D<label>& selected,
-	hostViewType1D<T>& vals
-);
 
-template<typename T, typename... properties>
+//
-void insertSetElementD
+REPORT(0)<<"\nCreating particle insertion object . . ."<<END_REPORT;
-(
+/*auto& sphInsertion = 
-	ViewType1D<T, properties...>& view,
+	Control.caseSetup().emplaceObject<sphereInsertion>(
-	deviceViewType1D<label>& selected,
+		objectFile(
-	T val
+			insertionFile__,
-);
+			"",
+			objectFile::READ_ALWAYS,
+			objectFile::WRITE_ALWAYS
+			),
+		sphParticles,
+		sphParticles.shapes()
+	);*/
 
-template<typename T, typename... properties>
+auto grnInsertion =  pFlow::grainInsertion(
-void insertSetElementD
+	grnParticles, 
-(
+	grnParticles.grains());
-	ViewType1D<T, properties...>& view,
+
-	deviceViewType1D<label>& selected,
+REPORT(0)<<"\nCreating interaction model for sphere-sphere contact and sphere-wall contact . . ."<<END_REPORT;
-	deviceViewType1D<T>& vals
+auto interactionPtr = pFlow::interaction::create(
-);
+	Control,
+	grnParticles,
+	surfGeometry
+	);
+
+auto& grnInteraction = interactionPtr();

solvers/grainGranFlow/grainGranFlow.cpp

@@ -0,0 +1,123 @@
+
+/*------------------------------- phasicFlow ---------------------------------
+      O        C enter of
+     O O       E ngineering and
+    O   O      M ultiscale modeling of
+   OOOOOOO     F luid flow       
+------------------------------------------------------------------------------
+  Copyright (C): www.cemf.ir
+  email: hamid.r.norouzi AT gmail.com
+------------------------------------------------------------------------------  
+Licence:
+  This file is part of phasicFlow code. It is a free software for simulating 
+  granular and multiphase flows. You can redistribute it and/or modify it under
+  the terms of GNU General Public License v3 or any other later versions. 
+ 
+  phasicFlow is distributed to help others in their research in the field of 
+  granular and multiphase flows, but WITHOUT ANY WARRANTY; without even the
+  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+-----------------------------------------------------------------------------*/
+/** 
+ * \file sphereGranFlow.cpp
+ * \brief sphereGranFlow solver 
+ *
+ * This solver simulate granular flow of cohesion-less, spherical particles. 
+ * Particle insertion can be activated in the solver to gradually insert 
+ * particles into the simulation. Geometry can be defined generally with 
+ * built-in features of the code or through ASCII stl files or a combination
+ * of both. For more information refer to [tutorials/sphereGranFlow/]
+ * (https://github.com/PhasicFlow/phasicFlow/tree/main/tutorials/sphereGranFlow) folder.
+ */
+
+#include "vocabs.hpp"
+#include "phasicFlowKokkos.hpp"
+#include "systemControl.hpp"
+#include "commandLine.hpp"
+#include "property.hpp"
+#include "geometry.hpp"
+#include "grainParticles.hpp"
+#include "interaction.hpp"
+#include "Insertions.hpp"
+
+
+
+//#include "readControlDict.hpp"
+
+
+/**
+ * DEM solver for simulating granular flow of cohesion-less particles.
+ *
+ * In the root case directory just simply enter the following command to 
+ * run the simulation. For command line options use flag -h. 
+ */
+int main( int argc, char* argv[])
+{
+
+pFlow::commandLine cmds(
+		"grainGranFlow",
+		"DEM solver for non-cohesive spherical grain particles with particle insertion "
+		"mechanism and moving geometry");
+
+bool isCoupling = false;
+
+if(!cmds.parse(argc, argv)) return 0;
+
+// this should be palced in each main 
+pFlow::processors::initProcessors(argc, argv);
+pFlow::initialize_pFlowProcessors();
+#include "initialize_Control.hpp"
+	 
+	#include "setProperty.hpp"
+	#include "setSurfaceGeometry.hpp"
+	
+
+	#include "createDEMComponents.hpp"
+	
+	REPORT(0)<<"\nStart of time loop . . .\n"<<END_REPORT;
+
+	do 
+	{
+		
+		if(! grnInsertion.insertParticles( 
+			Control.time().currentIter(),
+			Control.time().currentTime(),
+			Control.time().dt()	) )
+		{
+			fatalError<<
+			"particle insertion failed in grain DFlow solver.\n";
+			return 1;
+		}
+		 
+		// set force to zero
+		surfGeometry.beforeIteration();
+
+		// set force to zero, predict, particle deletion and etc. 
+		grnParticles.beforeIteration();
+
+		grnInteraction.beforeIteration();
+		
+		grnInteraction.iterate();	
+		
+		surfGeometry.iterate();
+
+		grnParticles.iterate();
+
+		grnInteraction.afterIteration();
+
+		surfGeometry.afterIteration();
+
+		grnParticles.afterIteration();
+				
+
+	}while(Control++);
+
+	REPORT(0)<<"\nEnd of time loop.\n"<<END_REPORT;
+
+// this should be palced in each main 
+#include "finalize.hpp"
+pFlow::processors::finalizeProcessors();
+
+
+}	
+

solvers/iterateGeometry/iterateGeometry.cpp

@@ -29,17 +29,16 @@ Licence:
  * folder.
  */
 
+#include "vocabs.hpp"
 #include "systemControl.hpp"
-#include "geometryMotion.hpp"
+#include "geometry.hpp"
 #include "commandLine.hpp"
-#include "readControlDict.hpp"
+//#include "readControlDict.hpp"
-
-using pFlow::commandLine;
 
 int main( int argc, char* argv[] )
 {
 
-commandLine cmds(
+pFlow::commandLine cmds(
     "iterateGeometry",
     "Performs simulation without particles, only geometry is solved");
 
@@ -54,6 +53,8 @@ commandLine cmds(
    
 
 // this should be palced in each main 
+pFlow::processors::initProcessors(argc, argv);
+pFlow::initialize_pFlowProcessors();
 #include "initialize_Control.hpp"
 	
 	#include "setProperty.hpp"
@@ -68,6 +69,7 @@ commandLine cmds(
 
 // this should be palced in each main 
 #include "finalize.hpp"
+pFlow::processors::finalizeProcessors();
 
 }
 

solvers/iterateSphereParticles/CMakeLists.txt

@@ -0,0 +1,7 @@
+
+set(source_files
+iterateSphereParticles.cpp
+)
+set(link_lib  Particles)
+
+pFlow_make_executable_install(iterateSphereParticles source_files link_lib)

solvers/iterateSphereParticles/createDEMComponents.hpp

@@ -0,0 +1,33 @@
+/*------------------------------- phasicFlow ---------------------------------
+      O        C enter of
+     O O       E ngineering and
+    O   O      M ultiscale modeling of
+   OOOOOOO     F luid flow       
+------------------------------------------------------------------------------
+  Copyright (C): www.cemf.ir
+  email: hamid.r.norouzi AT gmail.com
+------------------------------------------------------------------------------  
+Licence:
+  This file is part of phasicFlow code. It is a free software for simulating 
+  granular and multiphase flows. You can redistribute it and/or modify it under
+  the terms of GNU General Public License v3 or any other later versions. 
+ 
+  phasicFlow is distributed to help others in their research in the field of 
+  granular and multiphase flows, but WITHOUT ANY WARRANTY; without even the
+  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+-----------------------------------------------------------------------------*/
+
+REPORT(0)<<"Reading shape dictionary ..."<<END_REPORT;
+pFlow::sphereShape spheres
+(
+	pFlow::shapeFile__,
+	&Control.caseSetup(),
+	proprties
+);
+
+//
+REPORT(0)<<"\nReading sphere particles . . ."<<END_REPORT;
+pFlow::sphereParticles sphParticles(Control, spheres);
+
+WARNING<<"Particle insertion has not been set yet!"<<END_WARNING;

solvers/iterateSphereParticles/iterateSphereParticles.cpp

@@ -0,0 +1,89 @@
+
+/*------------------------------- phasicFlow ---------------------------------
+      O        C enter of
+     O O       E ngineering and
+    O   O      M ultiscale modeling of
+   OOOOOOO     F luid flow       
+------------------------------------------------------------------------------
+  Copyright (C): www.cemf.ir
+  email: hamid.r.norouzi AT gmail.com
+------------------------------------------------------------------------------  
+Licence:
+  This file is part of phasicFlow code. It is a free software for simulating 
+  granular and multiphase flows. You can redistribute it and/or modify it under
+  the terms of GNU General Public License v3 or any other later versions. 
+ 
+  phasicFlow is distributed to help others in their research in the field of 
+  granular and multiphase flows, but WITHOUT ANY WARRANTY; without even the
+  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+-----------------------------------------------------------------------------*/
+/** 
+ * \file sphereGranFlow.cpp
+ * \brief sphereGranFlow solver 
+ *
+ * This solver simulate granular flow of cohesion-less, spherical particles. 
+ * Particle insertion can be activated in the solver to gradually insert 
+ * particles into the simulation. Geometry can be defined generally with 
+ * built-in features of the code or through ASCII stl files or a combination
+ * of both. For more information refer to [tutorials/sphereGranFlow/]
+ * (https://github.com/PhasicFlow/phasicFlow/tree/main/tutorials/sphereGranFlow) folder.
+ */
+
+#include "vocabs.hpp"
+#include "property.hpp"
+#include "sphereParticles.hpp"
+#include "systemControl.hpp"
+#include "commandLine.hpp"
+
+
+
+/**
+ * DEM solver for simulating granular flow of cohesion-less particles.
+ *
+ * In the root case directory just simply enter the following command to 
+ * run the simulation. For command line options use flag -h. 
+ */
+int main( int argc, char* argv[])
+{
+
+pFlow::commandLine cmds(
+		"sphereGranFlow",
+		"DEM solver for non-cohesive spherical particles with particle insertion "
+		"mechanism and moving geometry");
+
+bool isCoupling = false;
+
+if(!cmds.parse(argc, argv)) return 0;
+
+// this should be palced in each main 
+pFlow::processors::initProcessors(argc, argv); 
+pFlow::initialize_pFlowProcessors();
+#include "initialize_Control.hpp"
+	
+	#include "setProperty.hpp"
+
+	#include "createDEMComponents.hpp"
+	
+	REPORT(0)<<"\nStart of time loop . . .\n"<<END_REPORT;
+
+	do 
+	{
+		
+		sphParticles.beforeIteration();
+	
+		sphParticles.iterate();
+
+		sphParticles.afterIteration();		
+
+	}while(Control++);
+
+	REPORT(0)<<"\nEnd of time loop.\n"<<END_REPORT;
+
+// this should be palced in each main 
+#include "finalize.hpp"
+pFlow::processors::finalizeProcessors();
+
+
+}	
+

solvers/sphereGranFlow/createDEMComponents.hpp

@@ -17,13 +17,21 @@ Licence:
   implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 
 -----------------------------------------------------------------------------*/
+REPORT(0)<<"Reading shapes dictionary..."<<END_REPORT;
+pFlow::sphereShape spheres
+(
+	pFlow::shapeFile__,
+	&Control.caseSetup(),
+	proprties
+);
+//
+REPORT(0)<<"\nReading sphere particles . . ."<<END_REPORT;
+
+
+pFlow::sphereParticles sphParticles(Control, spheres);
 
 //
-REPORT(0)<<"\nReading sphere particles . . ."<<endREPORT;
+REPORT(0)<<"\nCreating particle insertion object . . ."<<END_REPORT;
-sphereParticles sphParticles(Control, proprties);
-
-//
-REPORT(0)<<"\nCreating particle insertion object . . ."<<endREPORT;
 /*auto& sphInsertion = 
 	Control.caseSetup().emplaceObject<sphereInsertion>(
 		objectFile(
@@ -36,13 +44,12 @@ REPORT(0)<<"\nCreating particle insertion object . . ."<<endREPORT;
 		sphParticles.shapes()
 	);*/
 
-auto sphInsertion =  sphereInsertion(
+auto sphInsertion =  pFlow::sphereInsertion(
-	Control.caseSetup().path()+insertionFile__, 
 	sphParticles, 
-	sphParticles.shapes());
+	sphParticles.spheres());
 
-REPORT(0)<<"\nCreating interaction model for sphere-sphere contact and sphere-wall contact . . ."<<endREPORT;
+REPORT(0)<<"\nCreating interaction model for sphere-sphere contact and sphere-wall contact . . ."<<END_REPORT;
-auto interactionPtr = interaction::create(
+auto interactionPtr = pFlow::interaction::create(
 	Control,
 	sphParticles,
 	surfGeometry

solvers/sphereGranFlow/sphereGranFlow.cpp

@@ -30,29 +30,17 @@ Licence:
  * (https://github.com/PhasicFlow/phasicFlow/tree/main/tutorials/sphereGranFlow) folder.
  */
 
+#include "vocabs.hpp"
+#include "phasicFlowKokkos.hpp"
+#include "systemControl.hpp"
+#include "commandLine.hpp"
 #include "property.hpp"
 #include "geometry.hpp"
 #include "sphereParticles.hpp"
+#include "interaction.hpp"
 #include "Insertions.hpp"
-#include "systemControl.hpp"
-#include "contactSearch.hpp"
-#include "sphereInteraction.hpp"
-#include "commandLine.hpp"
-#include "readControlDict.hpp"
-
-using pFlow::output;
-using pFlow::endl;
-using pFlow::property;
-using pFlow::sphereParticles;
-using pFlow::objectFile;
-using pFlow::sphereInsertion;
-using pFlow::insertionFile__;
-using pFlow::interactionFile__;
-using pFlow::contactSearch;
-using pFlow::interaction;
-using pFlow::commandLine;
-
 
+//#include "readControlDict.hpp"
 
 /**
  * DEM solver for simulating granular flow of cohesion-less particles.
@@ -63,7 +51,7 @@ using pFlow::commandLine;
 int main( int argc, char* argv[])
 {
 
-commandLine cmds(
+pFlow::commandLine cmds(
 		"sphereGranFlow",
 		"DEM solver for non-cohesive spherical particles with particle insertion "
 		"mechanism and moving geometry");
@@ -73,20 +61,22 @@ bool isCoupling = false;
 if(!cmds.parse(argc, argv)) return 0;
 
 // this should be palced in each main 
+pFlow::processors::initProcessors(argc, argv);
+pFlow::initialize_pFlowProcessors();
 #include "initialize_Control.hpp"
 	 
 	#include "setProperty.hpp"
 	#include "setSurfaceGeometry.hpp"
 
-
 	#include "createDEMComponents.hpp"
 	
-	REPORT(0)<<"\nStart of time loop . . .\n"<<endREPORT;
+	REPORT(0)<<"\nStart of time loop . . .\n"<<END_REPORT;
 
 	do 
 	{
-		
+		//Ping;
 		if(! sphInsertion.insertParticles( 
+			Control.time().currentIter(),
 			Control.time().currentTime(),
 			Control.time().dt()	) )
 		{
@@ -95,30 +85,38 @@ if(!cmds.parse(argc, argv)) return 0;
 			return 1;
 		}
 		
+		// set force to zero
 		surfGeometry.beforeIteration();
 
-		sphInteraction.beforeIteration();
+		// set force to zero, predict, particle deletion and etc. 
-
 		sphParticles.beforeIteration();
-		
+		//Ping;
+		sphInteraction.beforeIteration();
 		
 		sphInteraction.iterate();
 			
-		sphParticles.iterate();
-
 		surfGeometry.iterate();
 
-		sphParticles.afterIteration();
+		//Ping;
+		sphParticles.iterate();
 		
+		//Ping;
+		sphInteraction.afterIteration();
+
+		//Ping;
 		surfGeometry.afterIteration();
 
+		//Ping;
+		sphParticles.afterIteration();
+		//Ping;	
 
 	}while(Control++);
 
-	REPORT(0)<<"\nEnd of time loop.\n"<<endREPORT;
+	REPORT(0)<<"\nEnd of time loop.\n"<<END_REPORT;
 
 // this should be palced in each main 
 #include "finalize.hpp"
+pFlow::processors::finalizeProcessors();
 
 
 }	

src/CMakeLists.txt

@@ -7,9 +7,9 @@ add_subdirectory(Property)
 
 add_subdirectory(Particles)
 
+add_subdirectory(Geometry)
+
 add_subdirectory(Interaction)
 
 add_subdirectory(MotionModel)
 
-add_subdirectory(Geometry)
-

src/Geometry/geometry/geometry.cpp

@@ -19,32 +19,40 @@ Licence:
 -----------------------------------------------------------------------------*/
 
 #include "geometry.hpp"
+#include "systemControl.hpp"
 #include "vocabs.hpp"
 
 
-bool pFlow::geometry::findPropertyId()
+bool pFlow::geometry::createPropertyId()
 {
-
+	if(materialName_.size() != numSurfaces() )
-	int8Vector propId(0, surface().capacity(),RESERVE());
-	propId.clear();
-
-	uint32 pId;
-	ForAll(matI, materialName_)
 	{
+		fatalErrorInFunction<<
+		"number of subSurface and material names do not match"<<endl;
+		return false;
+	}
 
-		if( !wallProperty_.nameToIndex( materialName_[matI], pId ) )
+	uint32Vector propId(
+		"propId", 
+		capacity(), 
+		size(),
+		RESERVE());
+
+	ForAll(i, materialName_)
+	{
+		uint32 pIdx =0;
+		
+		if( !wallProperty_.nameToIndex(materialName_[i], pIdx) )
 		{
-		 	fatalErrorInFunction<<
+			fatalErrorInFunction<<
-		 	"material name for the geometry is invalid: "<< materialName_[matI]<<endl;
+			"Property/material name is invalid "<<materialName_[i]<<
-		 	return false;
+			". A list of valid names are \n"<< wallProperty_.materials()<<endl;
+			return false;
 		}
 		
-		int32 surfSize = surface().surfNumTriangles(matI);
+		auto triRange = subSurfaceRange(i);
+		propId.fill(triRange.start(), triRange.end(), pIdx);
 		
-		for(int32 i=0; i<surfSize; i++)
-		{
-			propId.push_back(pId);
-		}
 	}
 
 	propertyId_.assign(propId);
@@ -53,83 +61,363 @@ bool pFlow::geometry::findPropertyId()
 
 }
 
+void pFlow::geometry::zeroForce()
+{
+	contactForceWall_.fill(zero3);
+}
+
 pFlow::geometry::geometry
 (
 	systemControl& control,
 	const property& prop
 )
 :
-	demGeometry(control),
+	multiTriSurface
+	(
+		objectFile
+		(
+			triSurfaceFile__,
+			"",
+			objectFile::READ_ALWAYS,
+			objectFile::WRITE_ALWAYS
+		),
+		&control.geometry()
+	),
+	demComponent
+	(
+		"geometry",
+		control
+	),
 	wallProperty_(prop),
-	geometryRepository_(control.geometry()),
+	propertyId_
-	triSurface_(
+	(
-		control.geometry().emplaceObject<multiTriSurface>(
+		objectFile
-			objectFile(
+		(
-				"triSurface",
+			"propertyId",
-				"",
+			"",
-				objectFile::READ_ALWAYS,
+			objectFile::READ_NEVER,
-				objectFile::WRITE_ALWAYS
+			objectFile::WRITE_NEVER
-				)
-			)
 		),
-	motionComponentName_(
+		*this,
-		control.geometry().emplaceObject<wordField>(
+		0u
-			objectFile(
+	),
-				"motionComponentName",
+	contactForceWall_
-				"",
+	(
-				objectFile::READ_ALWAYS,
+		objectFile
-				objectFile::WRITE_ALWAYS	
+		(
-				),
+			"contactForcWall",
-			"motionNamesList"
+			"",
-			)
+			objectFile::READ_IF_PRESENT,
+			objectFile::WRITE_NEVER
 		),
-	materialName_(
+		*this,
-		control.geometry().emplaceObject<wordField>(
+		zero3
-			objectFile(
+	),
-				"materialName",
+	normalStressWall_
-				"",
+	(
-				objectFile::READ_ALWAYS,
+		objectFile
-				objectFile::WRITE_ALWAYS
+		(
-				),
+			"normalStressWall",
-			"materialNamesList"
+			"",
-			)
+			objectFile::READ_IF_PRESENT,
+			objectFile::WRITE_NEVER
 		),
-	propertyId_(
+		*this,
-		control.geometry().emplaceObject<int8TriSurfaceField_D>(
+		zero3
-			objectFile(
+	),
-				"propertyId",
+	shearStressWall_
-				"",
+	(
-				objectFile::READ_NEVER,
+		objectFile
-				objectFile::WRITE_NEVER),
+		(
-			surface(),
+			"shearStressWall",
-			0 ) ),
+			"",
-	contactForceWall_(
+			objectFile::READ_IF_PRESENT,
-		control.geometry().emplaceObject<realx3TriSurfaceField_D>(
+			objectFile::WRITE_NEVER
-			objectFile(
+		),
-				"contactForceWall",
+		*this,
-				"",
+		zero3
-				objectFile::READ_IF_PRESENT,
+	)
-				objectFile::WRITE_ALWAYS),
-			surface(),
-			zero3) ),
-	stressWall_(
-		control.geometry().emplaceObject<realx3TriSurfaceField_D>(
-			objectFile(
-				"stressWall",
-				"",
-				objectFile::READ_IF_PRESENT,
-				objectFile::WRITE_ALWAYS),
-			surface(),
-			zero3) )
 {
 
-	if(!findPropertyId())
+	readWholeObject_ = false;
+	if( !IOobject::readObject() )
+    {
+        fatalErrorInFunction<<
+        "Error in reading from file "<<IOobject::path()<<endl;
+        fatalExit;
+    }
+	readWholeObject_ = true;
+
+	if( this->numSurfaces() != motionComponentName_.size() )
+	{
+		fatalErrorInFunction<<
+		"Number of surfaces is not equal to number of motion component names"<<endl;
+		fatalExit;
+	}
+	
+	if(!createPropertyId())
 	{
 		fatalExit;
 	}
 }
 
 pFlow::geometry::geometry
+(
+	systemControl &control, 
+	const property &prop, 
+	multiTriSurface &surf, 
+	const wordVector &motionCompName, 
+	const wordVector &materialName,
+	const dictionary& motionDict
+)
+:
+	multiTriSurface
+	(
+		objectFile
+		(
+			triSurfaceFile__,
+			"",
+			objectFile::READ_NEVER,
+			objectFile::WRITE_ALWAYS
+		),
+		&control.geometry(),
+		surf
+	),
+	demComponent
+	(
+		"geometry",
+		control
+	),
+	wallProperty_
+	(
+		prop
+	),
+	propertyId_
+	(
+		objectFile
+		(
+			"propertyId",
+			"",
+			objectFile::READ_NEVER,
+			objectFile::WRITE_NEVER
+		),
+		*this,
+		0u
+	),
+	contactForceWall_
+	(
+		objectFile
+		(
+			"contactForcWall",
+			"",
+			objectFile::READ_IF_PRESENT,
+			objectFile::WRITE_NEVER
+		),
+		*this,
+		zero3
+	),
+	normalStressWall_
+	(
+		objectFile
+		(
+			"normalStressWall",
+			"",
+			objectFile::READ_IF_PRESENT,
+			objectFile::WRITE_NEVER
+		),
+		*this,
+		zero3
+	),
+	shearStressWall_
+	(
+		objectFile
+		(
+			"shearStressWall",
+			"",
+			objectFile::READ_IF_PRESENT,
+			objectFile::WRITE_NEVER
+		),
+		*this,
+		zero3
+	)
+	
+{
+	motionComponentName_.assign(motionCompName);
+	materialName_.assign(materialName);
+
+
+	if( this->numSurfaces() != motionComponentName_.size() )
+	{
+		fatalErrorInFunction<<
+		"Number of surfaces ("<< this->numSurfaces() <<
+        ") is not equal to number of motion component names("<<
+        motionComponentName_.size()<<")"<<endl;
+		fatalExit;
+	}
+
+	if(!createPropertyId())
+	{
+		fatalExit;
+	}
+}
+
+bool pFlow::geometry::beforeIteration()
+{
+	zeroForce();
+    return true;
+}
+
+bool pFlow::geometry::iterate()
+{
+    return true;
+}
+
+bool pFlow::geometry::afterIteration()
+{
+	auto numTris = size();
+	auto& normalsD = normals().deviceViewAll();
+	auto& areaD = area().deviceViewAll();
+	auto& cForceD = contactForceWall_.deviceViewAll();
+	auto& sStressD = shearStressWall_.deviceViewAll();
+	auto& nStressD = normalStressWall_.deviceViewAll();
+
+	Kokkos::parallel_for(
+		"pFlow::geometry::afterIteration",
+		deviceRPolicyStatic(0, numTris),
+		LAMBDA_HD(uint32 i)
+		{	
+			realx3 n = normalsD[i];
+			real A = max(areaD[i],smallValue);
+			realx3 nF = dot(cForceD[i],n)*n;
+			realx3 sF = cForceD[i] - nF;
+			nStressD[i] = nF/A;
+			sStressD[i] = sF/A;
+		});
+	Kokkos::fence();
+    
+	return true;
+}
+
+bool pFlow::geometry::read(iIstream &is, const IOPattern &iop)
+{
+	motionComponentName_.read(is, iop);
+	
+	materialName_.read(is, iop);
+	
+	if( readWholeObject_ )
+	{
+		return multiTriSurface::read(is, iop);
+	}
+
+    return true;
+}
+
+bool pFlow::geometry::write(iOstream &os, const IOPattern &iop) const
+{
+    
+	if( !motionComponentName_.write(os, iop) )
+	{
+		fatalErrorInFunction;
+		return false;
+	}
+
+	if( !materialName_.write(os,iop))
+	{
+		fatalErrorInFunction;
+		return false;
+	}
+	
+	return multiTriSurface::write(os,iop);
+}
+
+
+pFlow::uniquePtr<pFlow::geometry> 
+	pFlow::geometry::create
+(
+	systemControl& control,
+	const property& prop
+)
+{
+	
+	//
+	fileDictionary dict( motionModelFile__, control.time().geometry().path());
+
+	word model = dict.getVal<word>("motionModel");
+	
+	auto geomModel = angleBracketsNames("geometry", model);
+
+	REPORT(1)<< "Selecting geometry model . . ."<<END_REPORT;
+	if( systemControlvCtorSelector_.search(geomModel) )
+	{
+		auto objPtr = systemControlvCtorSelector_[geomModel] (control, prop);
+		REPORT(2)<<"Model "<< Green_Text(geomModel)<<" is created.\n"<<END_REPORT;
+		return objPtr;
+	}
+	else
+	{
+		printKeys
+		( 
+			fatalError << "Ctor Selector "<< Yellow_Text(geomModel) << " dose not exist. \n"
+			<<"Avaiable ones are: \n\n"
+			,
+			systemControlvCtorSelector_
+		);
+		fatalExit;
+	}
+
+	return nullptr;
+}
+
+pFlow::uniquePtr<pFlow::geometry> 
+	pFlow::geometry::create
+	(
+		systemControl& control, 
+		const property& prop,
+		multiTriSurface& surf,
+		const wordVector& motionCompName,
+		const wordVector& materialName,
+		const dictionary& motionDic
+	)
+{
+
+	word model = motionDic.getVal<word>("motionModel");
+
+	auto geomModel = angleBracketsNames("geometry", model);
+
+	REPORT(1)<< "Selecting geometry model . . ."<<END_REPORT;
+
+	if( dictionaryvCtorSelector_.search(geomModel) )
+	{
+		auto objPtr = dictionaryvCtorSelector_[geomModel] 
+			(
+				control,
+				prop, 
+				surf,
+				motionCompName,
+				materialName,
+				motionDic
+			);
+		REPORT(2)<<"Model "<< Green_Text(geomModel)<<" is created.\n"<<END_REPORT;
+		return objPtr;
+	}
+	else
+	{
+		printKeys
+		( 
+			fatalError << "Ctor Selector "<< Yellow_Text(geomModel) << " dose not exist. \n"
+			<<"Avaiable ones are: \n\n"
+			,
+			dictionaryvCtorSelector_
+		);
+		fatalExit;
+	}
+	return nullptr;
+}
+
+
+
+
+/*pFlow::geometry::geometry
 (
 	systemControl& control,
 	const property& prop,
@@ -224,52 +512,7 @@ pFlow::geometry::geometry
 {}
 
 
-pFlow::uniquePtr<pFlow::geometry> 
-	pFlow::geometry::create
-(
-	systemControl& control,
-	const property& prop
-)
-{
-	//motionModelFile__
-	auto motionDictPtr = IOobject::make<dictionary>
-	(
-		objectFile
-		(
-			motionModelFile__,
-			control.geometry().path(),
-			objectFile::READ_ALWAYS,
-			objectFile::WRITE_NEVER
-		),
-		motionModelFile__,
-		true
-	);
 
-	word model = motionDictPtr().getObject<dictionary>().getVal<word>("motionModel");
-	
-	auto geomModel = angleBracketsNames("geometry", model);
-
-	REPORT(1)<< "Selecting geometry model . . ."<<endREPORT;
-	if( systemControlvCtorSelector_.search(geomModel) )
-	{
-		auto objPtr = systemControlvCtorSelector_[geomModel] (control, prop);
-		REPORT(2)<<"Model "<< greenText(geomModel)<<" is created.\n"<<endREPORT;
-		return objPtr;
-	}
-	else
-	{
-		printKeys
-		( 
-			fatalError << "Ctor Selector "<< yellowText(geomModel) << " dose not exist. \n"
-			<<"Avaiable ones are: \n\n"
-			,
-			systemControlvCtorSelector_
-		);
-		fatalExit;
-	}
-
-	return nullptr;
-}
 
 bool pFlow::geometry::beforeIteration()
 { 
@@ -296,48 +539,4 @@ bool pFlow::geometry::afterIteration()
 	Kokkos::fence();
 	return true;
 	
-}
+}*/
-
-pFlow::uniquePtr<pFlow::geometry> 
-	pFlow::geometry::create(
-			systemControl& control,
-			const property& prop,
-			const dictionary& dict,
-			const multiTriSurface& triSurface,
-			const wordVector& motionCompName,
-			const wordVector& propName)
-{
-
-	word model = dict.getVal<word>("motionModel");
-
-	auto geomModel = angleBracketsNames("geometry", model);
-
-	REPORT(1)<< "Selecting geometry model . . ."<<endREPORT;
-
-	if( dictionaryvCtorSelector_.search(geomModel) )
-	{
-		auto objPtr = dictionaryvCtorSelector_[geomModel] 
-			(
-				control,
-				prop, 
-				dict,
-				triSurface,
-				motionCompName,
-				propName
-			);
-		REPORT(2)<<"Model "<< greenText(geomModel)<<" is created.\n"<<endREPORT;
-		return objPtr;
-	}
-	else
-	{
-		printKeys
-		( 
-			fatalError << "Ctor Selector "<< yellowText(geomModel) << " dose not exist. \n"
-			<<"Avaiable ones are: \n\n"
-			,
-			dictionaryvCtorSelector_
-		);
-		fatalExit;
-	}
-	return nullptr;
-}

src/Geometry/geometry/geometry.hpp

@@ -23,13 +23,14 @@ Licence:
 
 
 #include "virtualConstructor.hpp"
-#include "demGeometry.hpp"
+#include "demComponent.hpp"
 #include "property.hpp"
-#include "Fields.hpp"
-#include "Vectors.hpp"
 #include "multiTriSurface.hpp"
 #include "triSurfaceFields.hpp"
-#include "dictionary.hpp"
+//#include "Fields.hpp"
+//#include "Vectors.hpp"
+
+
 
 namespace pFlow
 {
@@ -42,48 +43,49 @@ namespace pFlow
  */
 class geometry
 :
-	public demGeometry
+	public multiTriSurface,
+	public demComponent
 {
-protected:
+private:
 
 	// - Protected members 
 
 		/// Const reference to physical property of materials 
 		const property& 	wallProperty_;
 
-		/// Repository to store geometry data at each simulation moment
-		repository&  		geometryRepository_;
-
-		/// All triangles in the set of wall surfaces 
-		multiTriSurface&  	triSurface_;
-
 		/// The name of motion component of each wall surface 
-		wordField& 			motionComponentName_;
+		wordField_H 		motionComponentName_{
+								"motionComponentName",	
+								"motionComponentName"};
 
 		/// Material name of each wall surface  
-		wordField&   		materialName_;
+		wordField_H   		materialName_{
+								"materialName",
+								"materialName"};
 		
 		/// Property id of each triangle in the set of wall surfaces
-		int8TriSurfaceField_D& 		propertyId_;
+		uint32TriSurfaceField_D 		propertyId_;
 
 		/// Contact force on each triangle in the set of wall surfaces
-		realx3TriSurfaceField_D& 	contactForceWall_;
+		realx3TriSurfaceField_D 		contactForceWall_;
 
-		/// Stress on ech triangle in the set of wall surfaces 
+		/// Stress on each triangle in the set of wall surfaces 
-		realx3TriSurfaceField_D&    stressWall_;
+		realx3TriSurfaceField_D 		normalStressWall_;
+
+		/// Stress on each triangle in the set of wall surfaces 
+		realx3TriSurfaceField_D 		shearStressWall_;
+
+
+		bool readWholeObject_ = true; 			
 
 	// - Protected member functions
 	
 		/// Find property id of each triangle based on the supplied material name
 		/// and the surface wall that the triangle belongs to. 
-		bool findPropertyId();
+		bool createPropertyId();
 
 		/// Initialize contact force to zero 
-		void zeroForce()
+		void zeroForce();
-		{
-			contactForceWall_.fill(zero3);
-		}
-
 		
 public:
 
@@ -95,8 +97,15 @@ public:
 		/// Construct from controlSystem and property, for reading from file
 		geometry(systemControl& control, const property& prop);
 
-		/// Construct from components
 		geometry(systemControl& control, 
+			const property& prop,
+			multiTriSurface& surf,
+			const wordVector& motionCompName,
+			const wordVector& materialName,
+			const dictionary& motionDict);
+
+		/// Construct from components
+		/*geometry(systemControl& control,
 				 const property& prop,
 				 const multiTriSurface& triSurface,
 				 const wordVector& motionCompName,
@@ -110,10 +119,10 @@ public:
 				 const dictionary& dict,
 				 const multiTriSurface& triSurface,
 				 const wordVector& motionCompName,
-				 const wordVector& propName);
+				 const wordVector& propName);*/
 
 		/// Destructor
-		virtual ~geometry() = default;
+		~geometry()override = default;
 
 		/// Virtual constructor 
 		create_vCtor
@@ -132,156 +141,96 @@ public:
 		(
 			geometry,
 			dictionary,
-			(systemControl& control,
+			(
-			 const property& prop,
+				systemControl& control, 
-			 const dictionary& dict,
+				const property& prop,
-			 const multiTriSurface& triSurface,
+				multiTriSurface& surf,
-			 const wordVector& motionCompName,
+				const wordVector& motionCompName,
-			 const wordVector& propName),
+				const wordVector& materialName,
-			(control, prop, dict, triSurface, motionCompName, propName)
+				const dictionary& motionDic),
+			(control, prop, surf, motionCompName, materialName, motionDic)
 		);
 
 	//- Methods 	
-
-		/// Size of tri-surface 
 		inline 
-		auto size()const
+		const auto& motionComponentName()const
 		{
-			return triSurface_.size();
+			return motionComponentName_;
-		}
-
-		/// Number of points in the set of surface walls 
-		inline
-		auto numPoints()const
-		{
-			return triSurface_.numPoints();
-		}
-
-		/// Number of triangles in the set of surface walls 
-		inline
-		auto numTriangles()const
-		{
-			return size();
-		}
-
-		/// Access to the points
-		inline
-		const auto& points()const
-		{
-			return triSurface_.points();
-		}
-
-		/// Access to the vertices 
-		inline
-		const auto& vertices()const
-		{
-			return triSurface_.vertices();
-		}
-
-		/// Obtain an object for accessing triangles 
-		inline auto getTriangleAccessor()const
-		{
-			return triSurface_.getTriangleAccessor();
-		}
-
-		/// Surface 
-		inline auto& surface()
-		{
-			return triSurface_;
-		}
-
-		/// Surface 
-		inline const auto& surface()const
-		{
-			return triSurface_;
 		}
 		
 		/// Access to contact force
 		inline
-		realx3TriSurfaceField_D& contactForceWall()
+		auto& contactForceWall()
 		{
 			return contactForceWall_;
 		}
 
 		/// Access to contact force
 		inline
-		const realx3TriSurfaceField_D& contactForceWall() const
+		const auto& contactForceWall() const
 		{
 			return contactForceWall_;
 		}
 
+		/// Property ide of triangles 
+		inline
+		const auto& propertyId()const
+		{
+			return propertyId_;
+		}
+
 		/// Access to property 
 		inline const auto& wallProperty()const
 		{
 			return wallProperty_;
 		}
 
-		/// Owner repository
-		inline
-		const repository& owner()const
-		{
-			return geometryRepository_;
-		}
-
-		/// Owner repository
-		inline
-		repository& owner()
-		{
-			return geometryRepository_;
-		}
-
-		/// Path to the repository folder 
-		inline auto path()
-		{
-			return owner().path();
-		}
-
 		/// The name of motion model 
 		virtual 
 		word motionModelTypeName()const = 0;
 
 		/// Motion model index of triangles 
 		virtual
-		const int8Vector_HD& 			triMotionIndex() const =0;
+		const uint32Field_D& triMotionIndex() const =0;
 
 		/// Motion model index of points 
 		virtual 
-		const int8Vector_HD& 			pointMotionIndex()const = 0;
+		const uint32Field_D& pointMotionIndex()const = 0;
 
-		/// Property ide of triangles 
-		const int8TriSurfaceField_D& 	propertyId() const
-		{
-			return propertyId_;
-		}
 		
-		/// Operations before each iteration 
 		bool beforeIteration() override;
 		
-		/// Operations after each iteration
+		/// This is called in time loop. Perform the main calculations 
+		/// when the component should evolve along time.
+		bool iterate() override;
+		
+		/// This is called in time loop, after iterate.
 		bool afterIteration() override;
 		
 	//- IO
 
+		bool read(iIstream& is, const IOPattern& iop) override;
+
 		/// write 
-		bool write()const
+		bool write( iOstream& os, const IOPattern& iop )const override;
-		{
+		
-			return owner().write();
-		}
 
 
 	//- Static members 
 
 		static
-		uniquePtr<geometry> create(systemControl& control, const property& prop);
+		uniquePtr<geometry> create(
+			systemControl& control, 
+			const property& prop);
 
 		static
 		uniquePtr<geometry> create(
-				systemControl& control,
+			systemControl& control, 
-				const property& prop,
+			const property& prop,
-				const dictionary& dict,
+			multiTriSurface& surf,
-				const multiTriSurface& triSurface,
+			const wordVector& motionCompName,
-				const wordVector& motionCompName,
+			const wordVector& materialName,
-				const wordVector& propName);
+			const dictionary& motionDic);
 
 };
 

src/Geometry/geometryMotion/geometryMotion.cpp

@@ -21,41 +21,116 @@ Licence:
 template<typename MotionModel>
 bool pFlow::geometryMotion<MotionModel>::findMotionIndex()
 {
-	motionIndex_.clear();
-	triMotionIndex_.reserve( this->surface().capacity() );
-	triMotionIndex_.clear();
 	
-	ForAll( surfI, motionComponentName_)
+	if(motionComponentName().size() != numSurfaces() )
 	{
-		auto mName = motionComponentName_[surfI];
+		fatalErrorInFunction<<
-		auto mInd = motionModel_.nameToIndex(mName);
+		"size of motion component names in the triSurface is not"<<
-		motionIndex_.push_back(mInd);
+		" equal to size of number of sub-surfaces"<<endl;
-		// fill motionIndex for triangles of the surface
+		 return false;
-		int32 surfSize = this->surface().surfNumTriangles(surfI);
+	}
-		for(int32 i=0; i<surfSize; i++)
+
+	uint32Vector surfMotionIndex("surfMotionIndex");
+	uint32Vector triMotionIndex("triMotionIndex");
+	uint32Vector pointMotionIndex("pointMotionIndex");
+
+	ForAll( surfI, motionComponentName())
+	{
+		auto mName = motionComponentName()[surfI];
+		uint32 mInd=0;
+		
+		if( !motionModel_.nameToIndex(mName, mInd) )
 		{
-			triMotionIndex_.push_back(mInd);
+			fatalErrorInFunction<<
+			mName<< " does not exist in the list of motion names -> "<<
+			motionModel_.componentNames();
+            return false;
+		}
+		surfMotionIndex.push_back(mInd);
+		
+		auto surfRange = subSurfaceRange(surfI);
+		
+		for(uint32 i=0; i<surfRange.numElements(); i++)
+		{
+			triMotionIndex.push_back(mInd);
+		}
+
+		auto pointRange = subSurfacePointRange(surfI);
+		for(uint32 n=0; n<pointRange.numElements(); n++)
+		{
+			pointMotionIndex.push_back(mInd);
 		}
 	}
-	motionIndex_.syncViews();
-	triMotionIndex_.syncViews();
 	
-	pointMotionIndex_.reserve(triSurface_.numPoints());
+	surfMotionIndex_.assign(surfMotionIndex);
-	pointMotionIndex_.clear();
+	triMotionIndex_.assign(triMotionIndex);
-
+	pointMotionIndex_.assign(pointMotionIndex);
-	ForAll(surfI, motionIndex_)
-	{
-		auto nP = triSurface_.surfNumPoints(surfI);
-		for(int32 i=0; i<nP; i++)
-		{
-			pointMotionIndex_.push_back(motionIndex_[surfI]);
-		}
-	}
-	pointMotionIndex_.syncViews();
 
 	return true;
 }
 
+namespace pFlow::GMotion
+{
+    template<typename ModelInterface>
+    void moveGeometry(
+        real dt,
+        uint32 nPoints,
+        const ModelInterface& mModel,
+        const deviceViewType1D<uint32>& pointMIndexD,
+        const deviceViewType1D<realx3>& pointsD
+    )
+    {
+        Kokkos::parallel_for(
+         "geometryMotion<MotionModel>::movePoints",
+         deviceRPolicyStatic(0, nPoints),
+         LAMBDA_HD(uint32 i){
+             auto newPos = mModel.transferPoint(pointMIndexD[i], pointsD[i], dt);
+             pointsD[i] = newPos;
+         });
+
+        Kokkos::fence();
+    }
+}
+
+template<typename MotionModel>
+ bool pFlow::geometryMotion<MotionModel>::moveGeometry()
+ {
+
+    uint32 iter = this->currentIter();
+    real t = this->currentTime();
+    real dt = this->dt();
+        
+    auto mModel = motionModel_.getModelInterface(iter, t, dt);
+    
+    auto& pointMIndexD= pointMotionIndex_.deviceViewAll();
+    auto& pointsD = points().deviceViewAll();
+    
+    pFlow::GMotion::moveGeometry(
+        dt, 
+        numPoints(), 
+        motionModel_.getModelInterface(iter, t, dt),
+        pointMotionIndex_.deviceViewAll(),
+        points().deviceViewAll()
+    );
+
+    /*Kokkos::parallel_for(
+         "geometryMotion<MotionModel>::movePoints",
+         deviceRPolicyStatic(0, numPoints()),
+         LAMBDA_HD(uint32 i){
+             auto newPos = mModel.transferPoint(pointMIndexD[i], pointsD[i], dt);
+             pointsD[i] = newPos;
+         });
+
+    Kokkos::fence();*/
+
+    // move the motion components
+    motionModel_.move(iter, t,dt);
+
+    // end of calculations
+     
+
+     return true;
+ }
 
 template<typename MotionModel>
 pFlow::geometryMotion<MotionModel>::geometryMotion
@@ -65,144 +140,75 @@ pFlow::geometryMotion<MotionModel>::geometryMotion
 )
 :
 	geometry(control, prop),
-	motionModel_(
+	motionModel_
-		this->owner().template emplaceObject<MotionModel>(
+	(
-			objectFile(
+		objectFile
-				motionModelFile__,
+		(
-				"",
+			motionModelFile__,
-				objectFile::READ_ALWAYS,
+			"",
-				objectFile::WRITE_ALWAYS
+			objectFile::READ_ALWAYS,
-				)
+			objectFile::WRITE_ALWAYS
-			)
 		),
+		owner()
+	),
 	moveGeomTimer_("move geometry", &this->timers())
 {
-	findMotionIndex();
+	if(!findMotionIndex())
-}
-
-template<typename MotionModel>
-pFlow::geometryMotion<MotionModel>::geometryMotion
-(
-	systemControl& control,
-	const property& prop,
-	const multiTriSurface& triSurface,
-	const wordVector& motionCompName,
-	const wordVector& propName,
-	const MotionModel& motionModel
-)
-:
-	geometry(
-		control,
-		prop,
-		triSurface,
-		motionCompName,
-		propName
-		),
-	motionModel_(
-		this->owner().template emplaceObject<MotionModel>(
-			objectFile(
-				motionModelFile__,
-				"",
-				objectFile::READ_NEVER,
-				objectFile::WRITE_ALWAYS
-				),
-			motionModel
-			)
-		),
-	moveGeomTimer_("move geometry", &this->timers())
-{
-	findMotionIndex();
-}
-
-template<typename MotionModel>
-pFlow::geometryMotion<MotionModel>::geometryMotion
-(
-	systemControl& control,
-	const property& prop,
-	const dictionary& dict,
-	const multiTriSurface& triSurface,
-	const wordVector& motionCompName,
-	const wordVector& propName
-)
-:
-	geometry(
-		control,
-		prop,
-		dict,
-		triSurface,
-		motionCompName,
-		propName
-		),
-	motionModel_(
-		this->owner().template emplaceObject<MotionModel>(
-			objectFile(
-				motionModelFile__,
-				"",
-				objectFile::READ_NEVER,
-				objectFile::WRITE_ALWAYS
-				),
-			dict
-			)
-		),
-	moveGeomTimer_("move geometry", &this->timers())
-{
-	findMotionIndex();
-}
-
-template<typename MotionModel>
-bool pFlow::geometryMotion<MotionModel>::beforeIteration() 
-{ 
-	geometry::beforeIteration();
-	return true;
-}
-
-template<typename MotionModel>
-bool pFlow::geometryMotion<MotionModel>::iterate()
-{
-	if( motionModel_.isMoving() )
 	{
-		moveGeomTimer_.start();
+		fatalExit;
-		moveGeometry();
-		moveGeomTimer_.end();
 	}
-	return true;
 }
 
-template<typename MotionModel>
+template <typename MotionModelType>
-bool pFlow::geometryMotion<MotionModel>::afterIteration() 
+pFlow::geometryMotion<MotionModelType>::geometryMotion
+(
+	systemControl &control, 
+	const property &prop, 
+	multiTriSurface &surf, 
+	const wordVector &motionCompName, 
+	const wordVector &materialName, 
+	const dictionary &motionDict
+)
+:
+	geometry
+	(
+		control, 
+		prop, 
+		surf, 
+		motionCompName, 
+		materialName,
+        motionDict
+	),
+	motionModel_
+	(
+		objectFile
+		(
+			motionModelFile__,
+			"",
+			objectFile::READ_NEVER,
+			objectFile::WRITE_ALWAYS
+		),
+		motionDict,
+		owner()
+	),
+	moveGeomTimer_("move geometry", &this->timers())
 {
-	geometry::afterIteration();
+	if(!findMotionIndex())
-	return true;
+	{
+		fatalExit;
+	}
 } 
 
-template<typename MotionModel>
-bool pFlow::geometryMotion<MotionModel>::moveGeometry()
-{
 
-	real dt = this->dt();
+ template<typename MotionModel>
-	real t = this->currentTime();
+ bool pFlow::geometryMotion<MotionModel>::iterate()
-
+ {
-	auto pointMIndex= pointMotionIndex_.deviceVector();
+     if( motionModel_.isMoving() )
-	auto mModel = motionModel_.getModel(t);
+     {
-	realx3* points = triSurface_.pointsData_D();
+        moveGeomTimer_.start();
-	auto numPoints = triSurface_.numPoints();
+          moveGeometry();
-
+          this->calculateNormals();
-
+        moveGeomTimer_.end();
-	Kokkos::parallel_for(
+     }
-		"geometryMotion<MotionModel>::movePoints",
+     return true;
-		numPoints,
+ }
-		LAMBDA_HD(int32 i){
-			auto newPos = mModel.transferPoint(pointMIndex[i], points[i], dt);
-			points[i] = newPos;
-		});
-
-	Kokkos::fence();
-
-	// move the motion components 
-	motionModel_.move(t,dt);
-
-	// end of calculations 
-	moveGeomTimer_.end();
-
-	return true;
-}

src/Geometry/geometryMotion/geometryMotion.hpp

@@ -20,9 +20,8 @@ Licence:
 #ifndef __geometryMotion_hpp__
 #define __geometryMotion_hpp__
 
-
+#include "vocabs.hpp"
 #include "geometry.hpp"
-#include "VectorDuals.hpp"
 
 namespace pFlow
 {
@@ -39,21 +38,23 @@ class	geometryMotion
 {
 public:
 	
-	using MotionModel = MotionModelType;
+	using MotionModel 	 = MotionModelType;
 
-protected: 
+	using ModelComponent = typename MotionModelType::ModelComponent;
+
+private: 
 	
 	/// Ref to motion model 
-	MotionModel& 		motionModel_;
+	MotionModelType 	motionModel_;
 	
 	/// motion indext mapped on each surface 
-	int32Vector_HD  	motionIndex_;
+	uint32Field_D  		surfMotionIndex_{"triMotionIndex"};
 
 	/// motion index mapped on each triangle 
-	int8Vector_HD 		triMotionIndex_; 
+	uint32Field_D 		triMotionIndex_ {"surfMotionIndex"}; 
 
 	/// motion index mapped on each point 
-	int8Vector_HD		pointMotionIndex_;
+	uint32Field_D		pointMotionIndex_{"pointMotionIndex"};
 
 	/// timer for moveGeometry
 	Timer 				moveGeomTimer_;			
@@ -61,32 +62,25 @@ protected:
 	/// determine the motion index of each triangle 
 	bool findMotionIndex();
 	
+	/// Move geometry 
+	bool moveGeometry();
+
 public:
 
 	/// Type info
-	TypeInfoTemplate("geometry", MotionModel);
+	TypeInfoTemplate11("geometry", ModelComponent);
 
 	// - Constructors
 		
 		geometryMotion(systemControl& control, const property& prop);
 
-		
 		geometryMotion(
 			systemControl& control, 
 			const property& prop,
-			const multiTriSurface& triSurface,
+			multiTriSurface& surf,
 			const wordVector& motionCompName,
-			const wordVector& propName,
+			const wordVector& materialName,
-			const MotionModel& motionModel);
+			const dictionary& motionDict);
-
-		/// Construct from components and dictionary that contains 
-		/// motionModel
-		geometryMotion(systemControl& control,
-				 const property& prop,
-				 const dictionary& dict,
-				 const multiTriSurface& triSurface,
-				 const wordVector& motionCompName,
-				 const wordVector& propName);
 
 		/// Add virtual constructor 
 		add_vCtor
@@ -107,9 +101,9 @@ public:
 	// - Methods
 
 		/// Obtain motion model at time t 
-		auto getModel(real t)const
+		auto getModel(uint32 iter, real t, real dt)const
 		{
-			return motionModel_.getModel(t);
+			return motionModel_.getModelInterface(iter, t, dt);
 		}
 
 		/// TypeName / TypeInfo of motion model 
@@ -119,28 +113,21 @@ public:
 		}
 
 		/// Access to motion model index of triangles 
-		const int8Vector_HD& triMotionIndex()const override
+		const uint32Field_D& triMotionIndex()const override
 		{
 			return triMotionIndex_;
 		}
 
 		/// Access to motion model index of points 
-		const int8Vector_HD& pointMotionIndex()const override
+		const uint32Field_D& pointMotionIndex()const override
 		{
 			return pointMotionIndex_;
 		}
 
-		/// Operations before each iteration 
-		bool beforeIteration() override;
-
 		/// Iterate geometry one time step  
 		bool iterate() override ;
 
-		/// Operations after each iteration 
-		bool afterIteration() override;
 		
-		/// Move geometry 
-		bool moveGeometry();
 
 };
 
@@ -148,9 +135,6 @@ public:
 
 #include "geometryMotion.cpp"
 
-#ifndef BUILD_SHARED_LIBS
-	#include "geometryMotionsInstantiate.cpp"
-#endif
 
 
 #endif  //__geometryMotion_hpp__

src/Geometry/geometryMotion/geometryMotions.cpp

@@ -17,9 +17,15 @@ Licence:
   implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 
 -----------------------------------------------------------------------------*/
-
 #include "geometryMotions.hpp"
 
-#ifdef BUILD_SHARED_LIBS
+
-#include "geometryMotionsInstantiate.cpp"
+template class pFlow::geometryMotion<pFlow::vibratingMotion>;
-#endif
+
+template class pFlow::geometryMotion<pFlow::rotatingAxisMotion>;
+
+template class pFlow::geometryMotion<pFlow::stationaryWall>;
+
+template class pFlow::geometryMotion<pFlow::conveyorBeltMotion>;
+
+//template class pFlow::geometryMotion<pFlow::multiRotatingAxisMotion>;

src/Geometry/geometryMotion/geometryMotions.hpp

@@ -22,22 +22,26 @@ Licence:
 #define __geometryMotions_hpp__
 
 #include "geometryMotion.hpp"
-#include "fixedWall.hpp"
+#include "stationaryWall.hpp"
 #include "rotatingAxisMotion.hpp"
-#include "multiRotatingAxisMotion.hpp"
+#include "conveyorBeltMotion.hpp"
+//#include "multiRotatingAxisMotion.hpp"
 #include "vibratingMotion.hpp"
 
 
 namespace pFlow
 {
 
-typedef geometryMotion<vibratingMotion> vibratingMotionGeometry;
+using vibratingMotionGeometry = geometryMotion<vibratingMotion>;
 
-typedef geometryMotion<rotatingAxisMotion> rotationAxisMotionGeometry;
+using rotationAxisMotionGeometry = geometryMotion<rotatingAxisMotion>;
 
-typedef geometryMotion<multiRotatingAxisMotion> multiRotationAxisMotionGeometry;
+using stationaryGeometry = geometryMotion<stationaryWall>;
+
+using conveyorBeltMotionGeometry = geometryMotion<conveyorBeltMotion>;
+
+//typedef geometryMotion<multiRotatingAxisMotion> multiRotationAxisMotionGeometry;
 
-typedef geometryMotion<fixedWall> fixedGeometry;
 
 
 

src/Integration/AdamsBashforth2/AB2Kernels.hpp

@@ -0,0 +1,63 @@
+
+
+#ifndef __AB2Kernels_hpp__
+#define __AB2Kernels_hpp__
+
+#include "KokkosTypes.hpp"
+#include "types.hpp"
+
+namespace pFlow::AB2Kernels
+{
+inline
+bool intAllActive(
+    const word& name,
+	real dt, 
+    rangeU32 activeRng,
+	const deviceViewType1D<realx3>& y, 
+	const deviceViewType1D<realx3>& dy,
+	const deviceViewType1D<realx3>& dy1
+)
+{
+	Kokkos::parallel_for(
+		name,
+		deviceRPolicyStatic (activeRng.start(), activeRng.end()),
+		LAMBDA_HD(uint32 i){
+			y[i] +=  dt*(static_cast<real>(1.5) * dy[i] - static_cast<real>(0.5) * dy1[i]);
+			dy1[i] = dy[i];
+		});
+	Kokkos::fence();
+
+	return true;	
+}
+
+inline
+bool intScattered
+(
+	const word& name,
+	real dt, 
+    const pFlagTypeDevice& activePoints,
+	const deviceViewType1D<realx3>& y, 
+	const deviceViewType1D<realx3>& dy,
+	const deviceViewType1D<realx3>& dy1
+)
+{
+
+	Kokkos::parallel_for(
+		name,
+		deviceRPolicyStatic (activePoints.activeRange().start(), activePoints.activeRange().end()),
+		LAMBDA_HD(uint32 i){
+			if( activePoints(i))
+			{
+				y[i] +=  dt*(static_cast<real>(1.5) * dy[i] - static_cast<real>(0.5) * dy1[i]);
+				dy1[i] = dy[i];
+			}
+		});
+	Kokkos::fence();
+
+
+	return true;
+}
+
+}
+
+#endif

src/Integration/AdamsBashforth2/AdamsBashforth2.cpp

@@ -19,87 +19,191 @@ Licence:
 -----------------------------------------------------------------------------*/
 
 #include "AdamsBashforth2.hpp"
+#include "pointStructure.hpp"
+#include "Time.hpp"
+#include "vocabs.hpp"
 
-//const real AB2_coef[] = { 3.0 / 2.0, 1.0 / 2.0};
+namespace pFlow
-
-pFlow::AdamsBashforth2::AdamsBashforth2
-(
-	const word& baseName,
-	repository& owner,
-	const pointStructure& pStruct,
-	const word& method
-)
-:
-	integration(baseName, owner, pStruct, method),
-	dy1_(
-		owner.emplaceObject<realx3PointField_D>(
-			objectFile(
-				groupNames(baseName,"dy1"),
-				"",
-				objectFile::READ_IF_PRESENT,
-				objectFile::WRITE_ALWAYS),
-			pStruct,
-			zero3))
 {
 
-}
+/// Range policy for integration kernel (alias)
+using rpIntegration = Kokkos::RangePolicy<
+		DefaultExecutionSpace,
+		Kokkos::Schedule<Kokkos::Static>,
+		Kokkos::IndexType<uint32>
+		>;
 
-bool pFlow::AdamsBashforth2::predict
+bool intAllActive(
-(
-	real UNUSED(dt),
-	realx3Vector_D& UNUSED(y),
-	realx3Vector_D& UNUSED(dy)
-)
-{
-
-	return true;
-}
-
-bool pFlow::AdamsBashforth2::correct
-(
 	real dt, 
-	realx3Vector_D& y,
+	realx3Field_D& y, 
-	realx3Vector_D& dy
+	realx3PointField_D& dy,
-)
+	realx3PointField_D& dy1,
-{
+	real damping = 1.0)
-	if(this->pStruct().allActive())
-	{
-		return intAll(dt, y, dy, this->pStruct().activeRange());
-	}
-	else
-	{
-		return intRange(dt, y, dy, this->pStruct().activePointsMaskD());
-	}
-
-	return true;
-}
-
-bool pFlow::AdamsBashforth2::setInitialVals(
-	const int32IndexContainer& newIndices,
-	const realx3Vector& y)
-{
-	return true;
-}
-
-bool pFlow::AdamsBashforth2::intAll(
-	real dt, 
-	realx3Vector_D& y, 
-	realx3Vector_D& dy, 
-	range activeRng)
 {
 
-	auto d_dy = dy.deviceVectorAll();
+	auto d_dy = dy.deviceView();
-	auto d_y  = y.deviceVectorAll();
+	auto d_y  = y.deviceView();
-	auto d_dy1= dy1_.deviceVectorAll();
+	auto d_dy1= dy1.deviceView();
+	auto activeRng = dy1.activeRange();
 
 	Kokkos::parallel_for(
 		"AdamsBashforth2::correct",
-		rpIntegration (activeRng.first, activeRng.second),
+		rpIntegration (activeRng.start(), activeRng.end()),
-		LAMBDA_HD(int32 i){
+		LAMBDA_HD(uint32 i){
-			d_y[i] +=  dt*(static_cast<real>(3.0 / 2.0) * d_dy[i] - static_cast<real>(1.0 / 2.0) * d_dy1[i]);
+			d_y[i] +=  damping * dt*(static_cast<real>(1.5) * d_dy[i] - static_cast<real>(0.5) * d_dy1[i]);
 			d_dy1[i] = d_dy[i];
 		});
 	Kokkos::fence();
 
 	return true;	
 }
+
+bool intScattered
+(
+	real dt, 
+	realx3Field_D& y,
+	realx3PointField_D& dy,
+	realx3PointField_D& dy1,
+	real damping = 1.0
+)
+{
+
+	auto d_dy 		= dy.deviceView();
+	auto d_y  		= y.deviceView();
+	auto d_dy1		= dy1.deviceView();
+	auto activeRng 	= dy1.activeRange();
+	const auto& activeP = dy1.activePointsMaskDevice();
+
+	Kokkos::parallel_for(
+		"AdamsBashforth2::correct",
+		rpIntegration (activeRng.start(), activeRng.end()),
+		LAMBDA_HD(uint32 i){
+			if( activeP(i))
+			{
+				d_y[i] +=  damping * dt*(static_cast<real>(1.5) * d_dy[i] - static_cast<real>(0.5) * d_dy1[i]);
+				d_dy1[i] = d_dy[i];
+			}
+		});
+	Kokkos::fence();
+
+
+	return true;
+}
+
+}
+
+pFlow::AdamsBashforth2::AdamsBashforth2
+(
+	const word& baseName,
+	pointStructure& pStruct,
+	const word& method,
+	const realx3Field_D& initialValField
+)
+:
+	integration(baseName, pStruct, method, initialValField),
+	realx3PointField_D
+	(
+		objectFile
+		(
+			groupNames(baseName,"dy1"),
+			pStruct.time().integrationFolder(),
+			objectFile::READ_IF_PRESENT,
+			objectFile::WRITE_ALWAYS
+		),
+		pStruct,
+		zero3,
+		zero3
+	),
+	initialValField_(initialValField),
+	boundaryList_(pStruct, method, *this)
+{
+	realx3PointField_D::addEvent(message::ITEMS_INSERT);
+}
+
+void pFlow::AdamsBashforth2::updateBoundariesSlaveToMasterIfRequested()
+{
+	realx3PointField_D::updateBoundariesSlaveToMasterIfRequested();
+}
+
+bool pFlow::AdamsBashforth2::predict(
+    real UNUSED(dt),
+    realx3PointField_D &UNUSED(y),
+    realx3PointField_D &UNUSED(dy))
+{
+	return true;
+}
+
+bool pFlow::AdamsBashforth2::predict
+(
+	real dt, 
+	realx3Field_D &y, 
+	realx3PointField_D &dy
+)
+{
+    return true;
+}
+
+bool pFlow::AdamsBashforth2::correct
+(
+	real dt,
+	realx3PointField_D& y,
+	realx3PointField_D& dy,
+	real damping
+)
+{
+	auto& dy1l = dy1();
+	bool success = false;
+	if(dy1l.isAllActive())
+	{
+		success = intAllActive(dt, y.field(), dy, dy1(), damping);
+	}
+	else
+	{
+		success = intScattered(dt, y.field(), dy, dy1(), damping);
+	}
+
+	success = success && boundaryList_.correct(dt, y, dy);
+
+	return success;
+
+}
+
+bool pFlow::AdamsBashforth2::correctPStruct(
+	real dt, 
+	pointStructure &pStruct, 
+	realx3PointField_D &vel)
+{
+	auto& dy1l = dy1();
+	bool success = false;
+	if(dy1l.isAllActive())
+	{
+		success = intAllActive(dt, pStruct.pointPosition(), vel,  dy1());
+	}
+	else
+	{
+		success = intScattered(dt, pStruct.pointPosition(), vel,  dy1());
+	}
+
+	success = success && boundaryList_.correctPStruct(dt, pStruct, vel);
+
+	return success;
+}
+
+/*bool pFlow::AdamsBashforth2::hearChanges
+(
+	const timeInfo &ti, 
+	const message &msg, 
+	const anyList &varList
+)
+{
+	if(msg.equivalentTo(message::ITEMS_INSERT))
+	{
+		
+		return insertValues(varList, initialValField_.deviceViewAll(), dy1());
+	}
+	else
+	{
+		return realx3PointField_D::hearChanges(ti, msg, varList);
+	}
+    
+}*/

src/Integration/AdamsBashforth2/AdamsBashforth2.hpp

@@ -17,13 +17,13 @@ Licence:
   implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 
 -----------------------------------------------------------------------------*/
-
 #ifndef __AdamsBashforth2_hpp__
 #define __AdamsBashforth2_hpp__
 
 
 #include "integration.hpp"
 #include "pointFields.hpp"
+#include "boundaryIntegrationList.hpp"
 
 namespace pFlow
 {
@@ -36,41 +36,55 @@ namespace pFlow
  */
 class AdamsBashforth2
 :
-	public integration
+	public integration,
+	public realx3PointField_D
 {
+private:
+
+	const realx3Field_D& initialValField_;
+
+	boundaryIntegrationList boundaryList_;
+
+	friend class processorAB2BoundaryIntegration;
+
 protected:
 	
-	/// dy at t-dt
+	const auto& dy1()const
-	realx3PointField_D& dy1_;
+	{
+		return static_cast<const realx3PointField_D&>(*this);
+	}
 
-	/// Range policy for integration kernel (alias)
+	auto& dy1()
-	using rpIntegration = Kokkos::RangePolicy<
+	{
-			DefaultExecutionSpace,
+		return static_cast<realx3PointField_D&>(*this);
-			Kokkos::Schedule<Kokkos::Static>,
+	}
-			Kokkos::IndexType<int32>
+
-			>;
+	auto& initialValField()
+	{
+		return initialValField_;
+	}
+
+	boundaryIntegrationList& boundaryList()
+	{
+		return boundaryList_;
+	}
 	
 public:
 
-	/// Type info
+	/// Class info
-	TypeInfo("AdamsBashforth2");
+	ClassInfo("AdamsBashforth2");
 
 	// - Constructors
 
 		/// Construct from components
 		AdamsBashforth2(
 			const word& baseName,
-			repository& owner,
+			pointStructure& pStruct,
-			const pointStructure& pStruct,
+			const word& method,
-			const word& method);
+			const realx3Field_D& initialValField);
-
-		uniquePtr<integration> clone()const override
-		{
-			return makeUnique<AdamsBashforth2>(*this);
-		}
 
 		/// Destructor 
-		virtual ~AdamsBashforth2()=default;
+		~AdamsBashforth2()override = default;
 
 		/// Add this to the virtual constructor table 
 		add_vCtor(
@@ -81,70 +95,44 @@ public:
 
 	// - Methods
 
+		void updateBoundariesSlaveToMasterIfRequested()override;
+
+		/// return integration method 
+		word method()const override
+		{
+			return "AdamsBashforth2";
+		}
+
 		bool predict(
 			real UNUSED(dt), 
-			realx3Vector_D& UNUSED(y), 
+			realx3PointField_D& UNUSED(y), 
-			realx3Vector_D& UNUSED(dy)) override;
+			realx3PointField_D& UNUSED(dy)) final;
+		
+		bool predict(
+			real dt, 
+			realx3Field_D& y, 
+			realx3PointField_D& dy) final;
 
 		bool correct(
 			real dt, 
-			realx3Vector_D& y, 
+			realx3PointField_D& y, 
-			realx3Vector_D& dy) override;
+			realx3PointField_D& dy,
+			real damping = 1.0) override;
 
-		bool setInitialVals(
+		bool correctPStruct(
-			const int32IndexContainer& newIndices,
-			const realx3Vector& y) override;
-
-		bool needSetInitialVals()const override
-		{
-			return false;
-		}
-		
-		/// Integrate on all points in the active range 
-		bool intAll(
 			real dt, 
-			realx3Vector_D& y, 
+			pointStructure& pStruct, 
-			realx3Vector_D& dy, 
+			realx3PointField_D& vel) override;
-			range activeRng);
 		
-		/// Integrate on active points in the active range 
+		/*bool hearChanges
-		template<typename activeFunctor>
+		(
-		bool intRange(
+			const timeInfo& ti,
-			real dt, 
+			const message& msg, 
-			realx3Vector_D& y, 
+			const anyList& varList
-			realx3Vector_D& dy, 
+		) override;*/
-			activeFunctor activeP );
 
 };
 
-template<typename activeFunctor>
-bool pFlow::AdamsBashforth2::intRange(
-	real dt, 
-	realx3Vector_D& y,
-	realx3Vector_D& dy,
-	activeFunctor activeP )
-{
-
-	auto d_dy = dy.deviceVectorAll();
-	auto d_y  = y.deviceVectorAll();
-	auto d_dy1= dy1_.deviceVectorAll();
-	auto activeRng = activeP.activeRange();
-
-	Kokkos::parallel_for(
-		"AdamsBashforth2::correct",
-		rpIntegration (activeRng.first, activeRng.second),
-		LAMBDA_HD(int32 i){
-			if( activeP(i))
-			{
-				d_y[i] +=  dt*(static_cast<real>(3.0 / 2.0) * d_dy[i] - static_cast<real>(1.0 / 2.0) * d_dy1[i]);
-				d_dy1[i] = d_dy[i];
-			}
-		});
-	Kokkos::fence();
-
-
-	return true;
-}
 
 } // pFlow
 

src/Integration/AdamsBashforth3/AdamsBashforth3.cpp

@@ -20,90 +20,184 @@ Licence:
 
 #include "AdamsBashforth3.hpp"
 
-//const real AB3_coef[] = { 23.0 / 12.0, 16.0 / 12.0, 5.0 / 12.0 };
+namespace pFlow
-
-pFlow::AdamsBashforth3::AdamsBashforth3
-(
-	const word& baseName,
-	repository& owner,
-	const pointStructure& pStruct,
-	const word& method
-)
-:
-	integration(baseName, owner, pStruct, method),
-	history_(
-		owner.emplaceObject<pointField<VectorSingle,AB3History>>(
-			objectFile(
-				groupNames(baseName,"AB3History"),
-				"",
-				objectFile::READ_IF_PRESENT,
-				objectFile::WRITE_ALWAYS),
-			pStruct,
-			AB3History({zero3,zero3})))
-
 {
 
-}
+/// Range policy for integration kernel (alias)
+using rpIntegration = Kokkos::RangePolicy<
+		DefaultExecutionSpace,
+		Kokkos::Schedule<Kokkos::Static>,
+		Kokkos::IndexType<uint32>
+		>;
 
-bool pFlow::AdamsBashforth3::predict
+bool intAllActive(
-(
-	real UNUSED(dt),
-	realx3Vector_D& UNUSED(y),
-	realx3Vector_D& UNUSED(dy)
-)
-{
-
-	return true;
-}
-
-bool pFlow::AdamsBashforth3::correct
-(
 	real dt, 
-	realx3Vector_D& y,
+	realx3Field_D& y, 
-	realx3Vector_D& dy
+	realx3PointField_D& dy,
-)
+	realx3PointField_D& dy1,
+	realx3PointField_D& dy2,
+	real damping = 1.0)
 {
 
-	if(this->pStruct().allActive())
+	auto d_dy = dy.deviceView();
-	{
+	auto d_y  = y.deviceView();
-		return intAll(dt, y, dy, this->pStruct().activeRange());
+	auto d_dy1= dy1.deviceView();
-	}
+	auto d_dy2= dy2.deviceView();
-	else
+	auto activeRng = dy1.activeRange();
-	{
-		return intRange(dt, y, dy, this->pStruct().activePointsMaskD());
-	}
-
-	return true;
-}
-
-bool pFlow::AdamsBashforth3::setInitialVals(
-	const int32IndexContainer& newIndices,
-	const realx3Vector& y)
-{
-	return true;
-}
-
-bool pFlow::AdamsBashforth3::intAll(
-	real dt, 
-	realx3Vector_D& y, 
-	realx3Vector_D& dy, 
-	range activeRng)
-{
-	auto d_dy = dy.deviceVectorAll();
-	auto d_y  = y.deviceVectorAll();
-	auto d_history = history_.deviceVectorAll();
 
 	Kokkos::parallel_for(
 		"AdamsBashforth3::correct",
-		rpIntegration (activeRng.first, activeRng.second),
+		rpIntegration (activeRng.start(), activeRng.end()),
-		LAMBDA_HD(int32 i){
+		LAMBDA_HD(uint32 i){
-			auto ldy = d_dy[i];
+			d_y[i] += damping* dt*( static_cast<real>(23.0 / 12.0) * d_dy[i] 
-			d_y[i] += dt*( static_cast<real>(23.0 / 12.0) * ldy 
+						- static_cast<real>(16.0 / 12.0) * d_dy1[i] 
-				- static_cast<real>(16.0 / 12.0) * d_history[i].dy1_ 
+						+ static_cast<real>(5.0 / 12.0) * d_dy2[i]) ;
-				+ static_cast<real>(5.0 / 12.0) * d_history[i].dy2_);
+			
-			d_history[i] = {ldy ,d_history[i].dy1_};
+			d_dy2[i] = d_dy1[i];
+			d_dy1[i] = d_dy[i];
+
 		});
 	Kokkos::fence();
 
 	return true;	
 }
+
+bool intScattered
+(
+	real dt, 
+	realx3Field_D& y,
+	realx3PointField_D& dy,
+	realx3PointField_D& dy1,
+	realx3PointField_D& dy2,
+	real damping = 1.0
+)
+{
+
+	auto d_dy 		= dy.deviceView();
+	auto d_y  		= y.deviceView();
+	auto d_dy1		= dy1.deviceView();
+	auto d_dy2		= dy2.deviceView();
+	auto activeRng 	= dy1.activeRange();
+	const auto& activeP = dy1.activePointsMaskDevice();
+
+	Kokkos::parallel_for(
+		"AdamsBashforth3::correct",
+		rpIntegration (activeRng.start(), activeRng.end()),
+		LAMBDA_HD(uint32 i){
+			if( activeP(i))
+			{
+				d_y[i] += damping * dt*( static_cast<real>(23.0 / 12.0) * d_dy[i] 
+						- static_cast<real>(16.0 / 12.0) * d_dy1[i] 
+						+ static_cast<real>(5.0 / 12.0) * d_dy2[i]);
+			
+				d_dy2[i] = d_dy1[i];
+				d_dy1[i] = d_dy[i];
+			}
+		});
+	Kokkos::fence();
+
+
+	return true;
+}
+
+}
+
+//const real AB3_coef[] = { 23.0 / 12.0, 16.0 / 12.0, 5.0 / 12.0 };
+
+pFlow::AdamsBashforth3::AdamsBashforth3
+(
+	const word& baseName,
+	pointStructure& pStruct,
+	const word& method,
+	const realx3Field_D& initialValField
+)
+:
+	AdamsBashforth2(baseName, pStruct, method, initialValField),
+	dy2_
+	(
+		objectFile
+		(
+			groupNames(baseName,"dy2"),
+			pStruct.time().integrationFolder(),
+			objectFile::READ_IF_PRESENT,
+			objectFile::WRITE_ALWAYS
+		),
+		pStruct,
+		zero3,
+		zero3
+	)
+
+{
+	
+}
+
+void pFlow::AdamsBashforth3::updateBoundariesSlaveToMasterIfRequested()
+{
+	AdamsBashforth2::updateBoundariesSlaveToMasterIfRequested();
+	dy2_.updateBoundariesSlaveToMasterIfRequested();
+}
+
+
+
+bool pFlow::AdamsBashforth3::correct
+(
+	real dt, 
+	realx3PointField_D& y, 
+	realx3PointField_D& dy,
+	real damping
+)
+{
+	
+	bool success = false;
+	if(y.isAllActive())
+	{
+		success = intAllActive(dt, y.field(), dy, dy1(), dy2(), damping);
+	}
+	else
+	{
+		success = intScattered(dt, y.field(), dy, dy1(), dy2(), damping);
+	}
+
+	success = success && boundaryList().correct(dt, y, dy);
+
+	return success;
+}
+
+bool pFlow::AdamsBashforth3::correctPStruct(
+	real dt, 
+	pointStructure &pStruct, 
+	realx3PointField_D &vel)
+{
+	
+	bool success = false;
+	if(dy2().isAllActive())
+	{
+		success = intAllActive(dt, pStruct.pointPosition(), vel, dy1(), dy2());
+	}
+	else
+	{
+		success = intScattered(dt, pStruct.pointPosition(), vel, dy1(), dy2());
+	}
+
+	success = success && boundaryList().correctPStruct(dt, pStruct, vel);
+
+	return success;
+}
+
+/*bool pFlow::AdamsBashforth3::hearChanges
+(
+	const timeInfo &ti, 
+	const message &msg, 
+	const anyList &varList
+)
+{
+	if(msg.equivalentTo(message::ITEMS_INSERT))
+	{
+		return insertValues(varList, initialValField().deviceViewAll(), dy1()) &&
+		insertValues(varList, initialValField().deviceViewAll(), dy2());
+	}
+	else
+	{
+		return realx3PointField_D::hearChanges(ti, msg, varList);
+	}
+}*/

src/Integration/AdamsBashforth3/AdamsBashforth3.hpp

@@ -22,48 +22,14 @@ Licence:
 #define __AdamsBashforth3_hpp__
 
 
-#include "integration.hpp"
+#include "AdamsBashforth2.hpp"
 #include "pointFields.hpp"
+#include "boundaryIntegrationList.hpp"
+
 
 namespace pFlow
 {
 
-struct AB3History
-{
-	TypeInfoNV("AB3History");
-
-	realx3 dy1_={0,0,0};
-	realx3 dy2_={0,0,0};
-};
-
-
-INLINE_FUNCTION
-iIstream& operator>>(iIstream& str, AB3History& ab3)
-{
-	str.readBegin("AB3History");
-
-    str >> ab3.dy1_;
-    str >> ab3.dy2_;
-    
-    str.readEnd("AB3History");
-
-    str.check(FUNCTION_NAME);
-
-	return str;
-	
-}
-
-INLINE_FUNCTION
-iOstream& operator<<(iOstream& str, const AB3History& ab3)
-{
-	str << token::BEGIN_LIST << ab3.dy1_
-	    << token::SPACE << ab3.dy2_
-		<< token::END_LIST;	    
-
-	str.check(FUNCTION_NAME);
-
-	return str;
-}
 
 /**
  * Third order Adams-Bashforth integration method for solving ODE
@@ -72,19 +38,26 @@ iOstream& operator<<(iOstream& str, const AB3History& ab3)
  */
 class AdamsBashforth3
 :
-	public integration
+	public AdamsBashforth2
 {
+private:
+	
+	friend class processorAB3BoundaryIntegration;
+
+	realx3PointField_D 		dy2_;
+
 protected:
 
-	/// Integration history
+	const auto& dy2()const
-	pointField<VectorSingle,AB3History>& history_;
+	{
+		return dy2_;
+	}
+
+	auto& dy2()
+	{
+		return dy2_;
+	}
 	
-	/// Range policy for integration kernel
-	using rpIntegration = Kokkos::RangePolicy<
-			DefaultExecutionSpace,
-			Kokkos::Schedule<Kokkos::Static>,
-			Kokkos::IndexType<int32>
-			>;
 
 public:
 
@@ -96,17 +69,13 @@ public:
 		/// Construct from components
 		AdamsBashforth3(
 			const word& baseName,
-			repository& owner,
+			pointStructure& pStruct,
-			const pointStructure& pStruct,
+			const word& method,
-			const word& method);
+			const realx3Field_D& initialValField);
 		
-		uniquePtr<integration> clone()const override
-		{
-			return makeUnique<AdamsBashforth3>(*this);
-		}
 
 		/// Destructor 
-		virtual ~AdamsBashforth3()=default;
+		~AdamsBashforth3() override =default;
 
 		/// Add this to the virtual constructor table 
 		add_vCtor(
@@ -117,52 +86,48 @@ public:
 
 	// - Methods
 
-		bool predict(
+		void updateBoundariesSlaveToMasterIfRequested()override;
-			real UNUSED(dt),
-			realx3Vector_D & UNUSED(y),
-			realx3Vector_D& UNUSED(dy)) override;
 
-		bool correct(real dt, 
+		/// return integration method 
-			realx3Vector_D & y,
+		word method()const override
-			realx3Vector_D& dy) override;
-
-		bool setInitialVals(
-			const int32IndexContainer& newIndices,
-			const realx3Vector& y) override;
-
-		bool needSetInitialVals()const override
 		{
-			return false;
+			return "AdamsBashforth3";
 		}
 
-		/// Integrate on all points in the active range 
-		bool intAll(
-			real dt, 
-			realx3Vector_D& y, 
-			realx3Vector_D& dy, 
-			range activeRng);
 		
-		/// Integrate on active points in the active range 
+
-		template<typename activeFunctor>
+		bool correct(
-		bool intRange(
 			real dt, 
-			realx3Vector_D& y,
+			realx3PointField_D& y, 
-			realx3Vector_D& dy,
+			realx3PointField_D& dy,
-			activeFunctor activeP );
+			real damping = 1.0) override;
+
+		bool correctPStruct(
+			real dt, 
+			pointStructure& pStruct, 
+			realx3PointField_D& vel) override;
+			
+		
+		/*bool hearChanges
+		(
+			const timeInfo& ti,
+			const message& msg, 
+			const anyList& varList
+		) override;*/
 
 };
 
 
-template<typename activeFunctor>
+/*template<typename activeFunctor>
 bool pFlow::AdamsBashforth3::intRange(
 	real dt, 
 	realx3Vector_D& y,
 	realx3Vector_D& dy,
 	activeFunctor activeP )
 {
-	auto d_dy = dy.deviceVectorAll();
+	auto d_dy = dy.deviceViewAll();
-	auto d_y  = y.deviceVectorAll();
+	auto d_y  = y.deviceViewAll();
-	auto d_history = history_.deviceVectorAll();
+	auto d_history = history_.deviceViewAll();
 	auto activeRng = activeP.activeRange();
 
 	Kokkos::parallel_for(
@@ -181,7 +146,7 @@ bool pFlow::AdamsBashforth3::intRange(
 	Kokkos::fence();
 
 	return true;
-}
+}*/
 
 } // pFlow
 

src/Integration/AdamsBashforth4/AdamsBashforth4.cpp

@@ -20,96 +20,186 @@ Licence:
 
 #include "AdamsBashforth4.hpp"
 
-
+namespace pFlow
-
-pFlow::AdamsBashforth4::AdamsBashforth4
-(
-	const word& baseName,
-	repository& owner,
-	const pointStructure& pStruct,
-	const word& method
-)
-:
-	integration(baseName, owner, pStruct, method),
-	history_(
-		owner.emplaceObject<pointField<VectorSingle,AB4History>>(
-			objectFile(
-				groupNames(baseName,"AB4History"),
-				"",
-				objectFile::READ_IF_PRESENT,
-				objectFile::WRITE_ALWAYS),
-			pStruct,
-			AB4History({zero3,zero3, zero3})))
-
 {
 
-}
+/// Range policy for integration kernel (alias)
+using rpIntegration = Kokkos::RangePolicy<
+		DefaultExecutionSpace,
+		Kokkos::Schedule<Kokkos::Static>,
+		Kokkos::IndexType<uint32>
+		>;
 
-bool pFlow::AdamsBashforth4::predict
+bool intAllActive(
-(
-	real UNUSED(dt),
-	realx3Vector_D& UNUSED(y),
-	realx3Vector_D& UNUSED(dy)
-)
-{
-
-	return true;
-}
-
-bool pFlow::AdamsBashforth4::correct
-(
 	real dt, 
-	realx3Vector_D& y,
+	realx3Field_D& y, 
-	realx3Vector_D& dy
+	realx3PointField_D& dy,
-)
+	realx3PointField_D& dy1,
+	realx3PointField_D& dy2,
+	realx3PointField_D& dy3,
+	real damping = 1.0)
 {
 
-	if(this->pStruct().allActive())
+	auto d_dy = dy.deviceView();
-	{
+	auto d_y  = y.deviceView();
-		return intAll(dt, y, dy, this->pStruct().activeRange());
+	auto d_dy1= dy1.deviceView();
-	}
+	auto d_dy2= dy2.deviceView();
-	else
+	auto d_dy3= dy3.deviceView();
-	{
+	auto activeRng = dy1.activeRange();
-		return intRange(dt, y, dy, this->pStruct().activePointsMaskD());
-	}
-
-	return true;
-}
-
-bool pFlow::AdamsBashforth4::setInitialVals(
-	const int32IndexContainer& newIndices,
-	const realx3Vector& y)
-{
-	return true;
-}
-
-bool pFlow::AdamsBashforth4::intAll(
-	real dt, 
-	realx3Vector_D& y, 
-	realx3Vector_D& dy, 
-	range activeRng)
-{
-	auto d_dy = dy.deviceVectorAll();
-	auto d_y  = y.deviceVectorAll();
-	auto d_history = history_.deviceVectorAll();
 
 	Kokkos::parallel_for(
 		"AdamsBashforth4::correct",
-		rpIntegration (activeRng.first, activeRng.second),
+		rpIntegration (activeRng.start(), activeRng.end()),
-		LAMBDA_HD(int32 i){				
+		LAMBDA_HD(uint32 i){
-			d_y[i] += dt*( 
+			d_y[i] += damping * dt*( 
-						static_cast<real>(55.0 / 24.0) * d_dy[i]
+				  static_cast<real>(55.0 / 24.0) * d_dy[i]
-					- static_cast<real>(59.0 / 24.0) * d_history[i].dy1_ 
+				- static_cast<real>(59.0 / 24.0) * d_dy1[i] 
-					+ static_cast<real>(37.0 / 24.0) * d_history[i].dy2_
+				+ static_cast<real>(37.0 / 24.0) * d_dy2[i]
-					- static_cast<real>( 9.0 / 24.0) * d_history[i].dy3_
+				- static_cast<real>( 9.0 / 24.0) * d_dy3[i]);
-					);
-			d_history[i].dy3_ = d_history[i].dy2_;
-			d_history[i].dy2_ = d_history[i].dy1_;
-			d_history[i].dy1_ = d_dy[i];
-			
 
+			d_dy3[i] = d_dy2[i];
+			d_dy2[i] = d_dy1[i];
+			d_dy1[i] = d_dy[i];
 		});
 	Kokkos::fence();
 
 	return true;	
 }
+
+bool intScattered
+(
+	real dt, 
+	realx3Field_D& y,
+	realx3PointField_D& dy,
+	realx3PointField_D& dy1,
+	realx3PointField_D& dy2,
+	realx3PointField_D& dy3,
+	real damping = 1.0
+)
+{
+
+	auto d_dy 		= dy.deviceView();
+	auto d_y  		= y.deviceView();
+	auto d_dy1		= dy1.deviceView();
+	auto d_dy2		= dy2.deviceView();
+	auto d_dy3		= dy3.deviceView();
+	auto activeRng 	= dy1.activeRange();
+	const auto& activeP = dy1.activePointsMaskDevice();
+
+	Kokkos::parallel_for(
+		"AdamsBashforth4::correct",
+		rpIntegration (activeRng.start(), activeRng.end()),
+		LAMBDA_HD(uint32 i){
+			if( activeP(i))
+			{
+				d_y[i] += damping*  dt*( 
+				  static_cast<real>(55.0 / 24.0) * d_dy[i]
+				- static_cast<real>(59.0 / 24.0) * d_dy1[i] 
+				+ static_cast<real>(37.0 / 24.0) * d_dy2[i]
+				- static_cast<real>( 9.0 / 24.0) * d_dy3[i] );
+				d_dy3[i] = d_dy2[i];
+				d_dy2[i] = d_dy1[i];
+				d_dy1[i] = d_dy[i];
+			}
+		});
+	Kokkos::fence();
+
+
+	return true;
+}
+
+}
+
+pFlow::AdamsBashforth4::AdamsBashforth4
+(
+	const word& baseName,
+	pointStructure& pStruct,
+	const word& method,
+	const realx3Field_D& initialValField
+)
+:
+	AdamsBashforth3(baseName, pStruct, method, initialValField),
+	dy3_
+	(
+		objectFile
+		(
+			groupNames(baseName,"dy3"),
+			pStruct.time().integrationFolder(),
+			objectFile::READ_IF_PRESENT,
+			objectFile::WRITE_ALWAYS
+		),
+		pStruct,
+		zero3,
+		zero3
+	)
+{}
+
+void pFlow::AdamsBashforth4::updateBoundariesSlaveToMasterIfRequested()
+{
+	AdamsBashforth3::updateBoundariesSlaveToMasterIfRequested();
+	dy3_.updateBoundariesSlaveToMasterIfRequested();
+}
+
+bool pFlow::AdamsBashforth4::correct
+(
+	real dt, 
+	realx3PointField_D& y, 
+	realx3PointField_D& dy,
+	real damping
+)
+{
+	
+	bool success = false;
+	if(y.isAllActive())
+	{
+		success = intAllActive(dt, y.field(), dy, dy1(), dy2(), dy3(), damping);
+	}
+	else
+	{
+		success = intScattered(dt, y.field(), dy, dy1(), dy2(), dy3(), damping);
+	}
+
+	success = success && boundaryList().correct(dt, y, dy);
+
+	return success;
+}
+
+bool pFlow::AdamsBashforth4::correctPStruct(
+	real dt, 
+	pointStructure &pStruct, 
+	realx3PointField_D &vel)
+{
+	
+	bool success = false;
+	if(dy2().isAllActive())
+	{
+		success = intAllActive(dt, pStruct.pointPosition(), vel, dy1(), dy2(), dy3());
+	}
+	else
+	{
+		success = intScattered(dt, pStruct.pointPosition(), vel, dy1(), dy2(), dy3());
+	}
+
+	success = success && boundaryList().correctPStruct(dt, pStruct, vel);
+
+	return success;
+}
+
+/*bool pFlow::AdamsBashforth4::hearChanges
+(
+	const timeInfo &ti, 
+	const message &msg, 
+	const anyList &varList
+)
+{
+	if(msg.equivalentTo(message::ITEMS_INSERT))
+	{
+		return insertValues(varList, initialValField().deviceViewAll(), dy1()) &&
+		insertValues(varList, initialValField().deviceViewAll(), dy2()) && 
+		insertValues(varList, initialValField().deviceViewAll(), dy3());
+	}
+	else
+	{
+		return realx3PointField_D::hearChanges(ti, msg, varList);
+	}
+}*/

src/Integration/AdamsBashforth4/AdamsBashforth4.hpp

@@ -22,53 +22,14 @@ Licence:
 #define __AdamsBashforth4_hpp__
 
 
-#include "integration.hpp"
+#include "AdamsBashforth3.hpp"
 #include "pointFields.hpp"
+#include "boundaryIntegrationList.hpp"
+
 
 namespace pFlow
 {
 
-struct AB4History
-{
-	TypeInfoNV("AB4History");
-
-	realx3 dy1_={0,0,0};
-	realx3 dy2_={0,0,0};
-	realx3 dy3_={0,0,0};
-	
-};
-
-
-INLINE_FUNCTION
-iIstream& operator>>(iIstream& str, AB4History& ab4)
-{
-	str.readBegin("AB4History");
-
-    str >> ab4.dy1_;
-    str >> ab4.dy2_;
-    str >> ab4.dy3_;
-    
-    str.readEnd("AB4History");
-
-    str.check(FUNCTION_NAME);
-
-	return str;
-	
-}
-
-INLINE_FUNCTION
-iOstream& operator<<(iOstream& str, const AB4History& ab4)
-{
-	str << token::BEGIN_LIST << ab4.dy1_
-	    << token::SPACE << ab4.dy2_
-	    << token::SPACE << ab4.dy3_
-		<< token::END_LIST;	    
-
-	str.check(FUNCTION_NAME);
-
-	return str;
-}
-
 /**
  * Fourth order Adams-Bashforth integration method for solving ODE
  * 
@@ -76,19 +37,25 @@ iOstream& operator<<(iOstream& str, const AB4History& ab4)
  */
 class AdamsBashforth4
 :
-	public integration
+	public AdamsBashforth3
 {
+private:
+
+	friend class processorAB4BoundaryIntegration;
+
+	realx3PointField_D 		dy3_;
+
 protected:
 
-	/// Integration history
+	const auto& dy3()const
-	pointField<VectorSingle,AB4History>& history_;
+	{
+		return dy3_;
+	}
 
-	/// Range policy for integration kernel
+	auto& dy3()
-	using rpIntegration = Kokkos::RangePolicy<
+	{
-			DefaultExecutionSpace,
+		return dy3_;
-			Kokkos::Schedule<Kokkos::Static>,
+	}
-			Kokkos::IndexType<int32>
-			>;
 
 public:
 
@@ -100,17 +67,14 @@ public:
 		/// Construct from components
 		AdamsBashforth4(
 			const word& baseName,
-			repository& owner,
+			pointStructure& pStruct,
-			const pointStructure& pStruct,
+			const word& method,
-			const word& method);
+			const realx3Field_D& initialValField);
+		
 		
-		uniquePtr<integration> clone()const override
-		{
-			return makeUnique<AdamsBashforth4>(*this);
-		}
 
 		/// Destructor
-		virtual ~AdamsBashforth4()=default;
+		~AdamsBashforth4() override =default;
 
 		/// Add a this to the virtual constructor table 
 		add_vCtor(
@@ -121,77 +85,36 @@ public:
 
 	// - Methods
 		
-		bool predict(
+		void updateBoundariesSlaveToMasterIfRequested()override;
-			real UNUSED(dt),
+
-			realx3Vector_D & UNUSED(y),
+		/// return integration method 
-			realx3Vector_D& UNUSED(dy)) override;
+		word method()const override
+		{
+			return "AdamsBashforth4";
+		}
 
 		bool correct(
 			real dt, 
-			realx3Vector_D & y,
+			realx3PointField_D& y, 
-			realx3Vector_D& dy) override;
+			realx3PointField_D& dy,
+			real damping = 1.0) override;
 
-		bool setInitialVals(
+		bool correctPStruct(
-			const int32IndexContainer& newIndices,
-			const realx3Vector& y) override;
-
-		bool needSetInitialVals()const override
-		{
-			return false;
-		}
-
-		/// Integrate on all points in the active range 
-		bool intAll(
 			real dt, 
-			realx3Vector_D& y, 
+			pointStructure& pStruct, 
-			realx3Vector_D& dy, 
+			realx3PointField_D& vel) override;
-			range activeRng);
 		
-		/// Integrate on active points in the active range 
+		/*bool hearChanges
-		template<typename activeFunctor>
+		(
-		bool intRange(
+			const timeInfo& ti,
-			real dt,
+			const message& msg, 
-			realx3Vector_D& y,
+			const anyList& varList
-			realx3Vector_D& dy,
+		) override;*/
-			activeFunctor activeP );
 
 };
 
 
-template<typename activeFunctor>
-bool pFlow::AdamsBashforth4::intRange(
-	real dt, 
-	realx3Vector_D& y,
-	realx3Vector_D& dy,
-	activeFunctor activeP )
-{
-	auto d_dy = dy.deviceVectorAll();
-	auto d_y  = y.deviceVectorAll();
-	auto d_history = history_.deviceVectorAll();
-	auto activeRng = activeP.activeRange();
 
-	Kokkos::parallel_for(
-		"AdamsBashforth4::correct",
-		rpIntegration (activeRng.first, activeRng.second),
-		LAMBDA_HD(int32 i){
-			if( activeP(i))
-			{
-				
-				d_y[i] += dt*( 
-							static_cast<real>(55.0 / 24.0) * d_dy[i]
-						- static_cast<real>(59.0 / 24.0) * d_history[i].dy1_ 
-						+ static_cast<real>(37.0 / 24.0) * d_history[i].dy2_
-						- static_cast<real>( 9.0 / 24.0) * d_history[i].dy3_
-						);
-				d_history[i].dy3_ = d_history[i].dy2_;
-				d_history[i].dy2_ = d_history[i].dy1_;
-				d_history[i].dy1_ = d_dy[i];
-			}
-		});
-	Kokkos::fence();
-
-	return true;
-}
 
 } // pFlow
 

src/Integration/AdamsBashforth5/AdamsBashforth5.cpp

@@ -20,93 +20,178 @@ Licence:
 
 #include "AdamsBashforth5.hpp"
 
-
+namespace pFlow
-
-pFlow::AdamsBashforth5::AdamsBashforth5
-(
-	const word& baseName,
-	repository& owner,
-	const pointStructure& pStruct,
-	const word& method
-)
-:
-	integration(baseName, owner, pStruct, method),
-	history_(
-		owner.emplaceObject<pointField<VectorSingle,AB5History>>(
-			objectFile(
-				groupNames(baseName,"AB5History"),
-				"",
-				objectFile::READ_IF_PRESENT,
-				objectFile::WRITE_ALWAYS),
-			pStruct,
-			AB5History({zero3,zero3, zero3})))
-
 {
 
-}
+/// Range policy for integration kernel (alias)
+using rpIntegration = Kokkos::RangePolicy<
+		DefaultExecutionSpace,
+		Kokkos::Schedule<Kokkos::Static>,
+		Kokkos::IndexType<uint32>
+		>;
 
-bool pFlow::AdamsBashforth5::predict
+bool intAllActive(
-(
-	real UNUSED(dt),
-	realx3Vector_D& UNUSED(y),
-	realx3Vector_D& UNUSED(dy)
-)
-{
-
-	return true;
-}
-
-bool pFlow::AdamsBashforth5::correct
-(
 	real dt, 
-	realx3Vector_D& y,
+	realx3Field_D& y, 
-	realx3Vector_D& dy
+	realx3PointField_D& dy,
-)
+	realx3PointField_D& dy1,
+	realx3PointField_D& dy2,
+	realx3PointField_D& dy3,
+	realx3PointField_D& dy4,
+	real damping = 1.0)
 {
 
-	if(this->pStruct().allActive())
+	auto d_dy = dy.deviceView();
-	{
+	auto d_y  = y.deviceView();
-		return intAll(dt, y, dy, this->pStruct().activeRange());
+	auto d_dy1= dy1.deviceView();
-	}
+	auto d_dy2= dy2.deviceView();
-	else
+	auto d_dy3= dy3.deviceView();
-	{
+	auto d_dy4= dy4.deviceView();
-		return intRange(dt, y, dy, this->pStruct().activePointsMaskD());
+	auto activeRng = dy1.activeRange();
-	}
-
-	return true;
-}
-
-bool pFlow::AdamsBashforth5::setInitialVals(
-	const int32IndexContainer& newIndices,
-	const realx3Vector& y)
-{
-	return true;
-}
-
-bool pFlow::AdamsBashforth5::intAll(
-	real dt, 
-	realx3Vector_D& y, 
-	realx3Vector_D& dy, 
-	range activeRng)
-{
-	auto d_dy = dy.deviceVectorAll();
-	auto d_y  = y.deviceVectorAll();
-	auto d_history = history_.deviceVectorAll();
 
 	Kokkos::parallel_for(
 		"AdamsBashforth5::correct",
-		rpIntegration (activeRng.first, activeRng.second),
+		rpIntegration (activeRng.start(), activeRng.end()),
-		LAMBDA_HD(int32 i){				
+		LAMBDA_HD(uint32 i){
-			d_y[i] += dt*( 
+			d_y[i] += damping*  dt*( 
 				  static_cast<real>(1901.0 / 720.0) * d_dy[i]
-				- static_cast<real>(2774.0 / 720.0) * d_history[i].dy1_ 
+				- static_cast<real>(2774.0 / 720.0) * d_dy1[i]
-				+ static_cast<real>(2616.0 / 720.0) * d_history[i].dy2_
+				+ static_cast<real>(2616.0 / 720.0) * d_dy2[i]
-				- static_cast<real>(1274.0 / 720.0) * d_history[i].dy3_
+				- static_cast<real>(1274.0 / 720.0) * d_dy3[i]
-				+ static_cast<real>( 251.0 / 720.0) * d_history[i].dy4_
+				+ static_cast<real>( 251.0 / 720.0) * d_dy4[i]);
-				);
+				
-			d_history[i] = {d_dy[i] ,d_history[i].dy1_, d_history[i].dy2_, d_history[i].dy3_};
+			d_dy4[i] = d_dy3[i];
+			d_dy3[i] = d_dy2[i];
+			d_dy2[i] = d_dy1[i];
+			d_dy1[i] = d_dy[i];
 		});
 	Kokkos::fence();
 
 	return true;	
 }
+
+bool intScattered
+(
+	real dt, 
+	realx3Field_D& y,
+	realx3PointField_D& dy,
+	realx3PointField_D& dy1,
+	realx3PointField_D& dy2,
+	realx3PointField_D& dy3,
+	realx3PointField_D& dy4,
+	real damping = 1.0
+)
+{
+
+	auto d_dy 		= dy.deviceView();
+	auto d_y  		= y.deviceView();
+	auto d_dy1		= dy1.deviceView();
+	auto d_dy2		= dy2.deviceView();
+	auto d_dy3		= dy3.deviceView();
+	auto d_dy4		= dy4.deviceView();
+	auto activeRng 	= dy1.activeRange();
+	const auto& activeP = dy1.activePointsMaskDevice();
+
+	Kokkos::parallel_for(
+		"AdamsBashforth5::correct",
+		rpIntegration (activeRng.start(), activeRng.end()),
+		LAMBDA_HD(uint32 i){
+			if( activeP(i))
+			{
+				d_y[i] += damping*  dt*( 
+				  static_cast<real>(1901.0 / 720.0) * d_dy[i]
+				- static_cast<real>(2774.0 / 720.0) * d_dy1[i]
+				+ static_cast<real>(2616.0 / 720.0) * d_dy2[i]
+				- static_cast<real>(1274.0 / 720.0) * d_dy3[i]
+				+ static_cast<real>( 251.0 / 720.0) * d_dy4[i]);
+
+				d_dy4[i] = d_dy3[i];
+				d_dy3[i] = d_dy2[i];
+				d_dy2[i] = d_dy1[i];
+				d_dy1[i] = d_dy[i];
+			}
+		});
+	Kokkos::fence();
+
+	return true;
+}
+
+}
+
+pFlow::AdamsBashforth5::AdamsBashforth5
+(
+	const word &baseName, 
+	pointStructure &pStruct, 
+	const word &method, 
+	const realx3Field_D &initialValField
+)
+:
+	AdamsBashforth4(baseName, pStruct, method, initialValField),
+	dy4_
+	(
+		objectFile
+		(
+			groupNames(baseName,"dy4"),
+			pStruct.time().integrationFolder(),
+			objectFile::READ_IF_PRESENT,
+			objectFile::WRITE_ALWAYS
+		),
+		pStruct,
+		zero3,
+		zero3
+	)
+{}
+
+void pFlow::AdamsBashforth5::updateBoundariesSlaveToMasterIfRequested()
+{
+	AdamsBashforth4::updateBoundariesSlaveToMasterIfRequested();
+	dy4_.updateBoundariesSlaveToMasterIfRequested();
+}
+
+bool pFlow::AdamsBashforth5::correct
+(
+	real dt, 
+	realx3PointField_D &y, 
+	realx3PointField_D &dy, 
+	real damping
+)
+{
+	
+	bool success = false;
+	if(y.isAllActive())
+	{
+		success = intAllActive(dt, y.field(), dy, dy1(), dy2(), dy3(), dy4(), damping);
+	}
+	else
+	{
+		success = intScattered(dt, y.field(), dy, dy1(), dy2(), dy3(), dy4(), damping);
+	}
+
+	success = success && boundaryList().correct(dt, y, dy);
+
+	return success;
+}
+
+bool pFlow::AdamsBashforth5::correctPStruct
+(
+	real dt, 
+	pointStructure &pStruct, 
+	realx3PointField_D &vel
+)
+{
+bool success = false;
+	if(dy2().isAllActive())
+	{
+		success = intAllActive(dt, pStruct.pointPosition(), vel, dy1(), dy2(), dy3(), dy4());
+	}
+	else
+	{
+		success = intScattered(dt, pStruct.pointPosition(), vel, dy1(), dy2(), dy3(), dy4());
+	}
+
+	success = success && boundaryList().correctPStruct(dt, pStruct, vel);
+
+	return success;
+}
+
+

src/Integration/AdamsBashforth5/AdamsBashforth5.hpp

@@ -22,54 +22,12 @@ Licence:
 #define __AdamsBashforth5_hpp__
 
 
-#include "integration.hpp"
+#include "AdamsBashforth4.hpp"
 #include "pointFields.hpp"
 
 namespace pFlow
 {
 
-struct AB5History
-{
-	TypeInfoNV("AB5History");
-
-	realx3 dy1_={0,0,0};
-	realx3 dy2_={0,0,0};
-	realx3 dy3_={0,0,0};
-	realx3 dy4_={0,0,0};
-};
-
-
-INLINE_FUNCTION
-iIstream& operator>>(iIstream& str, AB5History& ab5)
-{
-	str.readBegin("AB5History");
-
-    str >> ab5.dy1_;
-    str >> ab5.dy2_;
-    str >> ab5.dy3_;
-    str >> ab5.dy4_;
-    
-    str.readEnd("AB5History");
-
-    str.check(FUNCTION_NAME);
-
-	return str;
-	
-}
-
-INLINE_FUNCTION
-iOstream& operator<<(iOstream& str, const AB5History& ab5)
-{
-	str << token::BEGIN_LIST << ab5.dy1_
-	    << token::SPACE << ab5.dy2_
-	    << token::SPACE << ab5.dy3_
-	    << token::SPACE << ab5.dy4_
-		<< token::END_LIST;	    
-
-	str.check(FUNCTION_NAME);
-
-	return str;
-}
 
 /**
  * Fifth order Adams-Bashforth integration method for solving ODE
@@ -78,19 +36,25 @@ iOstream& operator<<(iOstream& str, const AB5History& ab5)
  */
 class AdamsBashforth5
 :
-	public integration
+	public AdamsBashforth4
 {
+private:
+
+	friend class processorAB4BoundaryIntegration;
+
+	realx3PointField_D 		dy4_;
+
 protected:
 
-	/// Integration history
+	const auto& dy4()const
-	pointField<VectorSingle,AB5History>& history_;
+	{
+		return dy4_;
+	}
 
-	/// Range policy for integration kernel
+	auto& dy4()
-	using rpIntegration = Kokkos::RangePolicy<
+	{
-			DefaultExecutionSpace,
+		return dy4_;
-			Kokkos::Schedule<Kokkos::Static>,
+	}
-			Kokkos::IndexType<int32>
-			>;
 
 public:
 
@@ -99,20 +63,19 @@ public:
 
 	// - Constructors
 		
+		/// Construct from components
 		AdamsBashforth5(
 			const word& baseName,
-			repository& owner,
+			pointStructure& pStruct,
-			const pointStructure& pStruct,
+			const word& method,
-			const word& method);
+			const realx3Field_D& initialValField);
 		
-		uniquePtr<integration> clone()const override
-		{
-			return makeUnique<AdamsBashforth5>(*this);
-		}
 		
-		virtual ~AdamsBashforth5()=default;
 
-		/// Add this to the virtual constructor table 
+		/// Destructor
+		~AdamsBashforth5() override =default;
+
+		/// Add a this to the virtual constructor table 
 		add_vCtor(
 			integration,
 			AdamsBashforth5,
@@ -121,53 +84,38 @@ public:
 
 	// - Methods
 		
-		bool predict(
+		void updateBoundariesSlaveToMasterIfRequested()override;
-			real UNUSED(dt),
+
-			realx3Vector_D & UNUSED(y),
+		/// return integration method 
-			realx3Vector_D& UNUSED(dy)) override;
+		word method()const override
+		{
+			return "AdamsBashforth5";
+		}
 
 		bool correct(
 			real dt, 
-			realx3Vector_D & y,
+			realx3PointField_D& y, 
-			realx3Vector_D& dy) override;
+			realx3PointField_D& dy,
+			real damping = 1.0) override;
 
-		bool setInitialVals(
+		bool correctPStruct(
-			const int32IndexContainer& newIndices,
-			const realx3Vector& y) override;
-
-		bool needSetInitialVals()const override
-		{
-			return false;
-		}
-
-		/// Integrate on all points in the active range 
-		bool intAll(
 			real dt, 
-			realx3Vector_D& y, 
+			pointStructure& pStruct, 
-			realx3Vector_D& dy, 
+			realx3PointField_D& vel) override;
-			range activeRng);
-
-		/// Integrate on active points in the active range 
-		template<typename activeFunctor>
-		bool intRange(
-			real dt,
-			realx3Vector_D& y,
-			realx3Vector_D& dy,
-			activeFunctor activeP );
 
 };
 
 
-template<typename activeFunctor>
+/*template<typename activeFunctor>
 bool pFlow::AdamsBashforth5::intRange(
 	real dt, 
 	realx3Vector_D& y,
 	realx3Vector_D& dy,
 	activeFunctor activeP )
 {
-	auto d_dy = dy.deviceVectorAll();
+	auto d_dy = dy.deviceViewAll();
-	auto d_y  = y.deviceVectorAll();
+	auto d_y  = y.deviceViewAll();
-	auto d_history = history_.deviceVectorAll();
+	auto d_history = history_.deviceViewAll();
 	auto activeRng = activeP.activeRange();
 
 	Kokkos::parallel_for(
@@ -190,7 +138,7 @@ bool pFlow::AdamsBashforth5::intRange(
 	Kokkos::fence();
 
 	return true;
-}
+}*/
 
 } // pFlow
 

src/Integration/AdamsMoulton3/AdamsMoulton3.cpp

@@ -124,11 +124,11 @@ bool pFlow::AdamsMoulton3::predictAll(
 	range activeRng)
 {
 
-	auto d_dy = dy.deviceVectorAll();
+	auto d_dy = dy.deviceViewAll();
-	auto d_y  = y.deviceVectorAll();
+	auto d_y  = y.deviceViewAll();
-	auto d_y0 = y0_.deviceVectorAll();
+	auto d_y0 = y0_.deviceViewAll();
-	auto d_dy0 = dy0_.deviceVectorAll();
+	auto d_dy0 = dy0_.deviceViewAll();
-	auto d_dy1= dy1_.deviceVectorAll();
+	auto d_dy1= dy1_.deviceViewAll();
 
 	Kokkos::parallel_for(
 		"AdamsMoulton3::predict",
@@ -150,12 +150,12 @@ bool pFlow::AdamsMoulton3::intAll(
 	range activeRng)
 {
 
-	auto d_dy = dy.deviceVectorAll();
+	auto d_dy = dy.deviceViewAll();
-	auto d_y  = y.deviceVectorAll();
+	auto d_y  = y.deviceViewAll();
 
-	auto d_dy0 = dy0_.deviceVectorAll();
+	auto d_dy0 = dy0_.deviceViewAll();
-	auto d_y0  = y0_.deviceVectorAll();
+	auto d_y0  = y0_.deviceViewAll();
-	auto d_dy1 = dy1_.deviceVectorAll();
+	auto d_dy1 = dy1_.deviceViewAll();
 
 	Kokkos::parallel_for(
 		"AdamsMoulton3::correct",

src/Integration/AdamsMoulton3/AdamsMoulton3.hpp

@@ -144,11 +144,11 @@ bool AdamsMoulton3::predictRange(
 	realx3Vector_D& dy,
 	activeFunctor activeP)
 {
-	auto d_dy = dy.deviceVectorAll();
+	auto d_dy = dy.deviceViewAll();
-	auto d_y  = y.deviceVectorAll();
+	auto d_y  = y.deviceViewAll();
-	auto d_y0 = y0_.deviceVectorAll();
+	auto d_y0 = y0_.deviceViewAll();
-	auto d_dy0 = dy0_.deviceVectorAll();
+	auto d_dy0 = dy0_.deviceViewAll();
-	auto d_dy1= dy1_.deviceVectorAll();
+	auto d_dy1= dy1_.deviceViewAll();
 	
 	auto activeRng = activeP.activeRange();
 
@@ -182,12 +182,12 @@ bool pFlow::AdamsMoulton3::intRange(
 	activeFunctor activeP)
 {
 
-	auto d_dy = dy.deviceVectorAll();
+	auto d_dy = dy.deviceViewAll();
-	auto d_y  = y.deviceVectorAll();
+	auto d_y  = y.deviceViewAll();
 
-	auto d_dy0 = dy0_.deviceVectorAll();
+	auto d_dy0 = dy0_.deviceViewAll();
-	auto d_y0  = y0_.deviceVectorAll();
+	auto d_y0  = y0_.deviceViewAll();
-	auto d_dy1 = dy1_.deviceVectorAll();
+	auto d_dy1 = dy1_.deviceViewAll();
 
 	auto activeRng = activeP.activeRange();
 

src/Integration/AdamsMoulton4/AdamsMoulton4.cpp

@@ -135,13 +135,13 @@ bool pFlow::AdamsMoulton4::predictAll(
 	range activeRng)
 {
 
-	auto d_dy  = dy.deviceVectorAll();
+	auto d_dy  = dy.deviceViewAll();
-	auto d_y   = y.deviceVectorAll();
+	auto d_y   = y.deviceViewAll();
 
-	auto d_y0  = y0_.deviceVectorAll();
+	auto d_y0  = y0_.deviceViewAll();
-	auto d_dy0 = dy0_.deviceVectorAll();
+	auto d_dy0 = dy0_.deviceViewAll();
-	auto d_dy1 = dy1_.deviceVectorAll();
+	auto d_dy1 = dy1_.deviceViewAll();
-	auto d_dy2 = dy2_.deviceVectorAll();
+	auto d_dy2 = dy2_.deviceViewAll();
 
 	Kokkos::parallel_for(
 		"AdamsMoulton4::predict",
@@ -165,13 +165,13 @@ bool pFlow::AdamsMoulton4::intAll(
 	range activeRng)
 {
 
-	auto d_dy = dy.deviceVectorAll();
+	auto d_dy = dy.deviceViewAll();
-	auto d_y  = y.deviceVectorAll();
+	auto d_y  = y.deviceViewAll();
 
-	auto d_dy0 = dy0_.deviceVectorAll();
+	auto d_dy0 = dy0_.deviceViewAll();
-	auto d_y0  = y0_.deviceVectorAll();
+	auto d_y0  = y0_.deviceViewAll();
-	auto d_dy1 = dy1_.deviceVectorAll();
+	auto d_dy1 = dy1_.deviceViewAll();
-	auto d_dy2 = dy2_.deviceVectorAll();
+	auto d_dy2 = dy2_.deviceViewAll();
 
 	Kokkos::parallel_for(
 		"AdamsMoulton4::correct",

src/Integration/AdamsMoulton4/AdamsMoulton4.hpp

@@ -147,13 +147,13 @@ bool AdamsMoulton4::predictRange(
 	realx3Vector_D& dy,
 	activeFunctor activeP )
 {
-	auto d_dy = dy.deviceVectorAll();
+	auto d_dy = dy.deviceViewAll();
-	auto d_y  = y.deviceVectorAll();
+	auto d_y  = y.deviceViewAll();
 
-	auto d_y0 = y0_.deviceVectorAll();
+	auto d_y0 = y0_.deviceViewAll();
-	auto d_dy0 = dy0_.deviceVectorAll();
+	auto d_dy0 = dy0_.deviceViewAll();
-	auto d_dy1 = dy1_.deviceVectorAll();
+	auto d_dy1 = dy1_.deviceViewAll();
-	auto d_dy2 = dy2_.deviceVectorAll();
+	auto d_dy2 = dy2_.deviceViewAll();
 	
 	auto activeRng = activeP.activeRange();
 
@@ -185,13 +185,13 @@ bool pFlow::AdamsMoulton4::intRange(
 	activeFunctor activeP )
 {
 
-	auto d_dy = dy.deviceVectorAll();
+	auto d_dy = dy.deviceViewAll();
-	auto d_y  = y.deviceVectorAll();
+	auto d_y  = y.deviceViewAll();
 
-	auto d_dy0 = dy0_.deviceVectorAll();
+	auto d_dy0 = dy0_.deviceViewAll();
-	auto d_y0  = y0_.deviceVectorAll();
+	auto d_y0  = y0_.deviceViewAll();
-	auto d_dy1 = dy1_.deviceVectorAll();
+	auto d_dy1 = dy1_.deviceViewAll();
-	auto d_dy2 = dy2_.deviceVectorAll();
+	auto d_dy2 = dy2_.deviceViewAll();
 
 	auto activeRng = activeP.activeRange();
 

src/Integration/AdamsMoulton5/AdamsMoulton5.cpp

@@ -145,14 +145,14 @@ bool pFlow::AdamsMoulton5::predictAll(
 	range activeRng)
 {
 
-	auto d_dy  = dy.deviceVectorAll();
+	auto d_dy  = dy.deviceViewAll();
-	auto d_y   = y.deviceVectorAll();
+	auto d_y   = y.deviceViewAll();
 
-	auto d_y0  = y0_.deviceVectorAll();
+	auto d_y0  = y0_.deviceViewAll();
-	auto d_dy0 = dy0_.deviceVectorAll();
+	auto d_dy0 = dy0_.deviceViewAll();
-	auto d_dy1 = dy1_.deviceVectorAll();
+	auto d_dy1 = dy1_.deviceViewAll();
-	auto d_dy2 = dy2_.deviceVectorAll();
+	auto d_dy2 = dy2_.deviceViewAll();
-	auto d_dy3 = dy3_.deviceVectorAll();
+	auto d_dy3 = dy3_.deviceViewAll();
 
 	Kokkos::parallel_for(
 		"AdamsMoulton5::predict",
@@ -178,14 +178,14 @@ bool pFlow::AdamsMoulton5::intAll(
 	range activeRng)
 {
 
-	auto d_dy = dy.deviceVectorAll();
+	auto d_dy = dy.deviceViewAll();
-	auto d_y  = y.deviceVectorAll();
+	auto d_y  = y.deviceViewAll();
 
-	auto d_dy0 = dy0_.deviceVectorAll();
+	auto d_dy0 = dy0_.deviceViewAll();
-	auto d_y0  = y0_.deviceVectorAll();
+	auto d_y0  = y0_.deviceViewAll();
-	auto d_dy1 = dy1_.deviceVectorAll();
+	auto d_dy1 = dy1_.deviceViewAll();
-	auto d_dy2 = dy2_.deviceVectorAll();
+	auto d_dy2 = dy2_.deviceViewAll();
-	auto d_dy3 = dy3_.deviceVectorAll();
+	auto d_dy3 = dy3_.deviceViewAll();
 
 	Kokkos::parallel_for(
 		"AdamsMoulton5::correct",

src/Integration/AdamsMoulton5/AdamsMoulton5.hpp

@@ -150,14 +150,14 @@ bool AdamsMoulton5::predictRange(
 	realx3Vector_D& dy,
 	activeFunctor activeP )
 {
-	auto d_dy = dy.deviceVectorAll();
+	auto d_dy = dy.deviceViewAll();
-	auto d_y  = y.deviceVectorAll();
+	auto d_y  = y.deviceViewAll();
 
-	auto d_y0 = y0_.deviceVectorAll();
+	auto d_y0 = y0_.deviceViewAll();
-	auto d_dy0 = dy0_.deviceVectorAll();
+	auto d_dy0 = dy0_.deviceViewAll();
-	auto d_dy1 = dy1_.deviceVectorAll();
+	auto d_dy1 = dy1_.deviceViewAll();
-	auto d_dy2 = dy2_.deviceVectorAll();
+	auto d_dy2 = dy2_.deviceViewAll();
-	auto d_dy3 = dy3_.deviceVectorAll();
+	auto d_dy3 = dy3_.deviceViewAll();
 	
 	auto activeRng = activeP.activeRange();
 
@@ -189,14 +189,14 @@ bool pFlow::AdamsMoulton5::intRange(
 	activeFunctor activeP )
 {
 
-	auto d_dy = dy.deviceVectorAll();
+	auto d_dy = dy.deviceViewAll();
-	auto d_y  = y.deviceVectorAll();
+	auto d_y  = y.deviceViewAll();
 
-	auto d_dy0 = dy0_.deviceVectorAll();
+	auto d_dy0 = dy0_.deviceViewAll();
-	auto d_y0  = y0_.deviceVectorAll();
+	auto d_y0  = y0_.deviceViewAll();
-	auto d_dy1 = dy1_.deviceVectorAll();
+	auto d_dy1 = dy1_.deviceViewAll();
-	auto d_dy2 = dy2_.deviceVectorAll();
+	auto d_dy2 = dy2_.deviceViewAll();
-	auto d_dy3 = dy3_.deviceVectorAll();
+	auto d_dy3 = dy3_.deviceViewAll();
 
 	auto activeRng = activeP.activeRange();
 

src/Integration/CMakeLists.txt

@@ -1,15 +1,23 @@
 
 list(APPEND SourceFiles 
 integration/integration.cpp
-AdamsBashforth5/AdamsBashforth5.cpp
+boundaries/boundaryIntegration.cpp
-AdamsBashforth4/AdamsBashforth4.cpp
+boundaries/boundaryIntegrationList.cpp 
-AdamsBashforth3/AdamsBashforth3.cpp
 AdamsBashforth2/AdamsBashforth2.cpp
-AdamsMoulton3/AdamsMoulton3.cpp
+AdamsBashforth3/AdamsBashforth3.cpp
-AdamsMoulton4/AdamsMoulton4.cpp
+AdamsBashforth4/AdamsBashforth4.cpp
-AdamsMoulton5/AdamsMoulton5.cpp
+AdamsBashforth5/AdamsBashforth5.cpp
+
+#AdamsMoulton3/AdamsMoulton3.cpp
+#AdamsMoulton4/AdamsMoulton4.cpp
+#AdamsMoulton5/AdamsMoulton5.cpp
 )
 
+if(pFlow_Build_MPI)
+ list(APPEND SourceFiles 
+ AdamsBashforth2/processorAB2BoundaryIntegration.cpp)
+endif()
+
 set(link_libs Kokkos::kokkos phasicFlow)
 
 pFlow_add_library_install(Integration SourceFiles link_libs)

src/Integration/boundaries/boundaryIntegration.cpp

@@ -0,0 +1,55 @@
+#include "boundaryIntegration.hpp"
+#include "pointStructure.hpp"
+
+
+pFlow::boundaryIntegration::boundaryIntegration(
+    const boundaryBase &boundary, 
+    const pointStructure &pStruct,  
+    const word &method,
+    integration& intgrtn
+)
+:
+    generalBoundary(boundary, pStruct, "", method),
+    integration_(intgrtn)
+{}
+
+pFlow::uniquePtr<pFlow::boundaryIntegration> pFlow::boundaryIntegration::create(
+    const boundaryBase &boundary, 
+    const pointStructure &pStruct,  
+    const word &method,
+    integration& intgrtn
+)
+{
+
+    word bType = angleBracketsNames2( 
+		"boundaryIntegration",
+		boundary.type(),
+        method);
+
+	word altBType{"boundaryIntegration<none>"};
+
+	if( boundaryBasevCtorSelector_.search(bType) )
+	{
+		pOutput.space(4)<<"Creating boundary "<< Green_Text(bType)<<
+		" for "<<boundary.name()<<endl;
+		return boundaryBasevCtorSelector_[bType](boundary, pStruct, method, intgrtn);
+	}
+	else if(boundaryBasevCtorSelector_.search(altBType))
+	{
+		pOutput.space(4)<<"Creating boundary "<< Green_Text(altBType)<<
+		" for "<<boundary.name()<<endl;
+		return boundaryBasevCtorSelector_[altBType](boundary, pStruct, method, intgrtn);
+	}
+	else
+	{
+		printKeys( 
+			fatalError << "Ctor Selector "<< bType<<
+			" and "<< altBType << " do not exist. \n"
+			<<"Avaiable ones are: \n",
+			boundaryBasevCtorSelector_
+		);
+		fatalExit;
+	}
+	
+	return nullptr;
+}

src/Integration/boundaries/boundaryIntegration.hpp

@@ -0,0 +1,94 @@
+
+#ifndef __boundaryIntegration_hpp__
+#define __boundaryIntegration_hpp__
+
+
+#include "generalBoundary.hpp"
+#include "virtualConstructor.hpp"
+#include "pointFields.hpp"
+
+namespace pFlow
+{
+
+class integration;
+
+class boundaryIntegration
+:
+    public generalBoundary
+{
+private:
+
+	const integration& 		integration_;
+
+public:
+
+    TypeInfo("boundaryIntegration<none>");
+
+    boundaryIntegration(
+        const boundaryBase& boundary,
+        const pointStructure& pStruct, 
+        const word& method,
+        integration& intgrtn);
+
+    ~boundaryIntegration()override = default;
+
+    create_vCtor(
+        boundaryIntegration,
+        boundaryBase,
+        (
+            const boundaryBase& boundary,
+            const pointStructure& pStruct, 
+            const word& method,
+			integration& intgrtn
+        ),
+        (boundary, pStruct, method, intgrtn)
+    );
+    
+    add_vCtor(
+        boundaryIntegration,
+        boundaryIntegration,
+        boundaryBase
+    );
+
+    bool hearChanges(
+        const timeInfo& ti,
+        const message &msg,
+        const anyList &varList) override
+    {
+        return true;
+    }
+
+	const integration& Integration()const
+	{
+		return integration_;
+	}
+
+	virtual
+	bool correct(real dt, const realx3PointField_D& y, const realx3PointField_D& dy)
+	{
+		return true;
+	}
+
+    virtual
+    bool correctPStruct(real dt, const realx3PointField_D& vel)
+    {
+        return true;
+    }
+
+    bool isActive()const override
+    {
+        return false;
+    }
+    
+    static
+    uniquePtr<boundaryIntegration> create(
+        const boundaryBase& boundary,
+        const pointStructure& pStruct, 
+        const word& method,
+		integration& intgrtn);
+
+};
+
+}
+
+#endif

src/Integration/boundaries/boundaryIntegrationList.cpp

@@ -0,0 +1,58 @@
+#include "boundaryIntegrationList.hpp"
+#include "integration.hpp"
+
+pFlow::boundaryIntegrationList::boundaryIntegrationList(
+    const pointStructure &pStruct, 
+    const word &method, 
+    integration &intgrtn
+)
+:
+    boundaryListPtr<boundaryIntegration>(),
+	boundaries_(pStruct.boundaries())
+{
+	
+	ForAllBoundariesPtr(i, this)
+	{
+		this->set(
+			i,
+			boundaryIntegration::create(
+				boundaries_[i],
+				pStruct, 
+				method,
+				intgrtn
+			)
+		);
+	}	
+}
+
+bool pFlow::boundaryIntegrationList::correct(real dt, realx3PointField_D &y, realx3PointField_D &dy)
+{
+	ForAllActiveBoundariesPtr(i,this)
+	{
+		if(!boundaryPtr(i)->correct(dt, y, dy))
+		{
+			fatalErrorInFunction<<"Error in correcting boundary "<<
+			boundaryPtr(i)->boundaryName()<<endl;
+			return false;
+		}
+	}
+    return true;
+}
+
+bool pFlow::boundaryIntegrationList::correctPStruct(
+	real dt, 
+	pointStructure &pStruct, 
+	const realx3PointField_D &vel)
+{
+	ForAllActiveBoundariesPtr(i,this)
+	{
+		if(!boundaryPtr(i)->correctPStruct(dt, vel))
+		{
+			fatalErrorInFunction<<"Error in correcting boundary "<<
+			boundaryPtr(i)->boundaryName()<<" in pointStructure."<<endl;
+			return false;
+		}
+	}
+	
+    return true;
+}

src/Integration/boundaries/boundaryIntegrationList.hpp

@@ -0,0 +1,51 @@
+
+#ifndef __boundaryIntegrationList_hpp__
+#define __boundaryIntegrationList_hpp__
+
+
+#include "boundaryList.hpp"
+#include "boundaryListPtr.hpp"
+#include "boundaryIntegration.hpp"
+
+
+namespace pFlow
+{
+
+class integration;
+
+class boundaryIntegrationList
+:
+    public boundaryListPtr<boundaryIntegration>
+{
+private:
+
+    const boundaryList&         boundaries_;
+
+public:
+
+    boundaryIntegrationList(
+        const pointStructure& pStruct, 
+        const word& method,
+		integration& intgrtn
+    );
+
+    ~boundaryIntegrationList()=default;
+
+    bool correct(
+		real dt, 
+		realx3PointField_D& y, 
+		realx3PointField_D& dy);
+
+    bool correctPStruct(
+        real dt, 
+        pointStructure& pStruct, 
+        const realx3PointField_D& vel);
+
+};
+
+
+
+}
+
+
+#endif //__boundaryIntegrationList_hpp__

src/Integration/integration/integration.cpp

@@ -19,33 +19,57 @@ Licence:
 -----------------------------------------------------------------------------*/
 
 #include "integration.hpp"
+#include "pointStructure.hpp"
+#include "repository.hpp"
 
-pFlow::integration::integration
+bool pFlow::integration::insertValues
 (
-	const word& baseName,
+	const anyList& varList, 
-	repository& owner,
+	const deviceViewType1D<realx3>& srcVals,
-	const pointStructure& pStruct,
+	realx3PointField_D& dstFeild
-	const word& method
 )
-:
-	owner_(owner),
-	baseName_(baseName),
-	pStruct_(pStruct)
 {
-	CONSUME_PARAM(method);
+	const word eventName = message::eventName(message::ITEMS_INSERT);
+
+	if(!varList.checkObjectType<uint32IndexContainer>(eventName))
+	{
+		fatalErrorInFunction<<"Insertion failed in integration for "<< baseName_<<
+		", variable "<< eventName <<
+		" does not exist or the type is incorrect"<<endl;
+		return false;
+	}
+
+	const auto& indices = varList.getObject<uint32IndexContainer>(
+		eventName);
+	
+	dstFeild.field().insertSetElement(indices, srcVals);
+
+    return true;
 }
 
+pFlow::integration::integration(
+    const word &baseName,
+    pointStructure &pStruct,
+    const word &,
+    const realx3Field_D &)
+    : owner_(*pStruct.owner()),
+      pStruct_(pStruct),
+      baseName_(baseName)
+{}
+
 
 pFlow::uniquePtr<pFlow::integration> 
-	pFlow::integration::create(
+	pFlow::integration::create
+(
 		const word& baseName,
-		repository& owner,
+		pointStructure& pStruct,
-		const pointStructure& pStruct,
+		const word& method,
-		const word& method)
+		const realx3Field_D& initialValField
+)
 {
 	if( wordvCtorSelector_.search(method) )
 	{
-		return wordvCtorSelector_[method] (baseName, owner, pStruct, method);
+		return wordvCtorSelector_[method] (baseName, pStruct, method, initialValField);
 	}
 	else
 	{

src/Integration/integration/integration.hpp

@@ -23,14 +23,16 @@ Licence:
 
 
 #include "virtualConstructor.hpp"
-#include "Vectors.hpp"
+#include "pointFields.hpp"
-#include "pointStructure.hpp"
-#include "repository.hpp"
 
 
 namespace pFlow
 {
 
+// - Forward
+class repository;
+class pointStructure;
+
 /**
  * Base class for integrating the first order ODE (IVP) 
  * 
@@ -48,18 +50,25 @@ namespace pFlow
  */
 class integration
 {
-protected:
+private:
 
 	// - Protected data members 
 
 		/// The owner repository that all fields are storred in
 		repository& owner_;
 
+		/// A reference to pointStructure
+		const pointStructure& pStruct_;
+
 		/// The base name for integration 
 		const word baseName_;
 
-		/// A reference to pointStructure
+protected:
-		const pointStructure& pStruct_;
+
+	bool insertValues(
+		const anyList& varList, 
+		const deviceViewType1D<realx3>& srcVals,
+		realx3PointField_D& dstFeild);
 
 public:
 
@@ -72,9 +81,9 @@ public:
 		/// Construct from components
 		integration(
 			const word& baseName,
-			repository& owner,
+			pointStructure& pStruct,
-			const pointStructure& pStruct,
+			const word& method,
-			const word& method);
+			const realx3Field_D& initialValField);
 
 		/// Copy constructor 
 		integration(const integration&) = default;
@@ -88,22 +97,22 @@ public:
 		/// Move assignment
 		integration& operator = (integration&&) = default;
 
-		/// Polymorphic copy/cloning
-		virtual 
-		uniquePtr<integration> clone()const=0;
-
 		/// Destructor 
 		virtual ~integration()=default;
 
 		/// Add a virtual constructor 
-		create_vCtor(
+		create_vCtor
+		(
 			integration,
 			word,
-			(const word& baseName,
+			(
-			repository& owner,
+				const word& baseName,
-			const pointStructure& pStruct,
+				pointStructure& pStruct,
-			const word& method),
+				const word& method,
-			(baseName, owner, pStruct, method) );
+				const realx3Field_D& initialValField
+			),
+			(baseName, pStruct, method, initialValField)
+		);
 
 
 	// - Methods
@@ -129,32 +138,33 @@ public:
 			return owner_;
 		}
 
+		virtual 
+		void updateBoundariesSlaveToMasterIfRequested() = 0;
+		/// return integration method 
+		virtual 
+		word method()const = 0 ;
+
 		/// Prediction step in integration
 		virtual 
-		bool predict(real dt, realx3Vector_D& y, realx3Vector_D& dy) = 0;
+		bool predict(real dt, realx3PointField_D& y, realx3PointField_D& dy) = 0;
+
+		virtual 
+		bool predict(real dt, realx3Field_D& y, realx3PointField_D& dy) = 0;
 
 		/// Correction/main integration step
 		virtual 
-		bool correct(real dt, realx3Vector_D& y, realx3Vector_D& dy) = 0;
+		bool correct(real dt, realx3PointField_D& y, realx3PointField_D& dy, real damping = 1.0) = 0;
 
-		/// Set the initial values for new indices 
 		virtual 
-		bool setInitialVals(
+		bool correctPStruct(real dt, pointStructure& pStruct, realx3PointField_D& vel) = 0;
-				const int32IndexContainer& newIndices,
-				const realx3Vector& y) = 0;
-
-		/// Check if the method requires any set initial vals
-		virtual 
-		bool needSetInitialVals()const = 0;
-
 
 	/// Create the polymorphic object based on inputs
 	static
 		uniquePtr<integration> create(
 			const word& baseName,
-			repository& owner,
+			pointStructure& pStruct,
-			const pointStructure& pStruct,
+			const word& method,
-			const word& method);
+			const realx3Field_D& initialValField);
 
 }; // integration
 

src/Interaction/CMakeLists.txt

@@ -1,11 +1,43 @@
 
 set(SourceFiles 
+contactSearch/methods/cellBased/NBS/mapperNBS.cpp
+contactSearch/methods/cellBased/NBS/mapperNBSKernels.cpp
+contactSearch/methods/cellBased/NBS/NBSLevel0.cpp
+contactSearch/methods/cellBased/NBS/NBS.cpp
+contactSearch/methods/cellBased/NBS/cellsWallLevel0.cpp
+
+contactSearch/boundaries/boundaryContactSearch/boundaryContactSearch.cpp
+
+contactSearch/boundaries/periodicBoundaryContactSearch/ppwBndryContactSearchKernels.cpp
+contactSearch/boundaries/periodicBoundaryContactSearch/ppwBndryContactSearch.cpp
+contactSearch/boundaries/periodicBoundaryContactSearch/wallBoundaryContactSearch.cpp
+contactSearch/boundaries/periodicBoundaryContactSearch/periodicBoundaryContactSearch.cpp
+contactSearch/boundaries/boundaryContactSearchList.cpp
+
 contactSearch/contactSearch/contactSearch.cpp
 contactSearch/ContactSearch/ContactSearchs.cpp
+
 interaction/interaction.cpp
-sphereInteraction/sphereInteractions.cpp
+sphereInteraction/sphereInteractionsLinearModels.cpp
+sphereInteraction/sphereInteractionsNonLinearModels.cpp
+sphereInteraction/sphereInteractionsNonLinearModModels.cpp
+
+grainInteraction/grainInteractionsLinearModels.cpp
+grainInteraction/grainInteractionsNonLinearModels.cpp
+grainInteraction/grainInteractionsNonLinearModModels.cpp
+
+
 )
 
+if(pFlow_Build_MPI)
+    list(APPEND SourceFiles 
+    contactSearch/boundaries/processorBoundaryContactSearch/processorBoundaryContactSearch.cpp
+    sphereInteraction/boundaries/processorBoundarySphereInteraction/processorBoundarySphereInteractions.cpp
+    contactSearch/boundaries/twoPartContactSearch/twoPartContactSearchKernels.cpp
+    contactSearch/boundaries/twoPartContactSearch/twoPartContactSearch.cpp
+    )
+endif()
+
 set(link_libs Kokkos::kokkos phasicFlow Property Particles Geometry)
 
 pFlow_add_library_install(Interaction SourceFiles link_libs)

src/Interaction/Models/contactForce/cGAbsoluteLinearCF.hpp

@@ -0,0 +1,339 @@
+/*------------------------------- phasicFlow ---------------------------------
+      O        C enter of
+     O O       E ngineering and
+    O   O      M ultiscale modeling of
+   OOOOOOO     F luid flow       
+------------------------------------------------------------------------------
+  Copyright (C): www.cemf.ir
+  email: hamid.r.norouzi AT gmail.com
+------------------------------------------------------------------------------  
+Licence:
+  This file is part of phasicFlow code. It is a free software for simulating 
+  granular and multiphase flows. You can redistribute it and/or modify it under
+  the terms of GNU General Public License v3 or any other later versions. 
+ 
+  phasicFlow is distributed to help others in their research in the field of 
+  granular and multiphase flows, but WITHOUT ANY WARRANTY; without even the
+  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+-----------------------------------------------------------------------------*/
+
+#ifndef __cGAbsoluteLinearCF_hpp__
+#define __cGAbsoluteLinearCF_hpp__
+
+#include "types.hpp"
+#include "symArrays.hpp"
+
+
+namespace pFlow::cfModels
+{
+
+template<bool limited=true>
+class cGAbsoluteLinear
+{
+public:
+
+	struct contactForceStorage
+	{
+		realx3 overlap_t_ = 0.0;
+	};
+	
+	
+	struct linearProperties
+	{		
+		real 	kn_ 	= 1000.0;
+		real 	kt_	= 800.0;
+		real 	en_ 	= 0.0;
+		real 	ethat_ 	= 0.0;
+		real    mu_ 	= 0.00001;
+
+		INLINE_FUNCTION_HD
+		linearProperties(){}
+
+		INLINE_FUNCTION_HD
+		linearProperties(real kn, real kt, real en, real etha_t, real mu ):
+			kn_(kn), kt_(kt), en_(en),ethat_(etha_t), mu_(mu) 
+		{}		
+
+		INLINE_FUNCTION_HD
+		linearProperties(const linearProperties&)=default;
+
+		INLINE_FUNCTION_HD
+		linearProperties& operator=(const linearProperties&)=default;
+
+		INLINE_FUNCTION_HD
+		~linearProperties() = default;
+	};
+	
+	
+
+protected:
+
+	using LinearArrayType = symArray<linearProperties>;
+	
+	int32 					numMaterial_ = 0;
+
+	ViewType1D<real>  		 rho_;
+
+	LinearArrayType  	linearProperties_;
+	
+	int32 		addDissipationModel_;	
+	
+
+	bool readLinearDictionary(const dictionary& dict)
+	{
+	
+		
+		auto kn = dict.getVal<realVector>("kn");
+		auto kt = dict.getVal<realVector>("kt");
+		auto en = dict.getVal<realVector>("en");
+		auto et = dict.getVal<realVector>("et");
+		auto mu = dict.getVal<realVector>("mu");
+
+		auto nElem = kn.size();
+
+		if(nElem != kt.size())
+		{
+			fatalErrorInFunction<<
+			"sizes of kn("<<nElem<<") and kt("<<kt.size()<<") do not match.\n";
+			return false;
+		}
+
+		if(nElem != kt.size())
+		{
+			fatalErrorInFunction<<
+			"sizes of kn("<<nElem<<") and kt("<<kt.size()<<") do not match.\n";
+			return false;
+		}
+
+		if(nElem != en.size())
+		{
+			fatalErrorInFunction<<
+			"sizes of kn("<<nElem<<") and en("<<en.size()<<") do not match.\n";
+			return false;
+		}
+
+		if(nElem != et.size())
+		{
+			fatalErrorInFunction<<
+			"sizes of kn("<<nElem<<") and et("<<et.size()<<") do not match.\n";
+			return false;
+		}
+
+		if(nElem != mu.size())
+		{
+			fatalErrorInFunction<<
+			"sizes of kn("<<nElem<<") and mu("<<mu.size()<<") do not match.\n";
+			return false;
+		}
+
+		
+		// check if size of vector matchs a symetric array
+		uint32 nMat;
+		if( !LinearArrayType::getN(nElem, nMat) )
+		{
+			fatalErrorInFunction<<
+			"sizes of properties do not match a symetric array with size ("<<
+			numMaterial_<<"x"<<numMaterial_<<").\n";
+			return false;
+		}
+		else if( numMaterial_ != nMat)
+		{
+			fatalErrorInFunction<<
+			"size mismatch for porperties. \n"<<
+			"you supplied "<< numMaterial_<<" items in materials list and "<<
+			nMat << " for other properties.\n";
+			return false;
+		}
+
+
+		realVector etha_t("etha_t", nElem);
+
+		ForAll(i , kn)
+		{
+
+			etha_t[i] = -2.0*log( et[i])*sqrt(kt[i]*2/7) /
+					sqrt(log(pow(et[i],2))+ pow(Pi,2));
+		}
+
+		Vector<linearProperties> prop("prop", nElem);
+		ForAll(i,kn)
+		{
+			prop[i] = {kn[i], kt[i], en[i], etha_t[i], mu[i] };
+		}
+
+		linearProperties_.assign(prop);
+		
+		auto adm = dict.getVal<word>("additionalDissipationModel");
+
+		
+		if(adm == "none")
+		{
+			addDissipationModel_ = 1;
+		}
+		else if(adm == "LU")
+		{
+			addDissipationModel_ = 2;
+		}
+		else if (adm == "GB")
+		{
+			addDissipationModel_ = 3;
+		}
+		else
+		{
+			addDissipationModel_ = 1;
+		}
+		
+		return true;
+
+	}
+
+	static const char* modelName()
+	{
+		if constexpr (limited)
+		{
+			return "cGAbsoluteLinearLimited";
+		}
+		else
+		{
+			return "cGAbsoluteLinearNonLimited";
+		}
+		return "";
+	}
+
+public:
+
+
+	TypeInfoNV(modelName());
+
+	INLINE_FUNCTION_HD
+	cGAbsoluteLinear(){}
+
+	cGAbsoluteLinear(int32 nMaterial, const ViewType1D<real>& rho, const dictionary& dict)
+	:
+		numMaterial_(nMaterial),
+		rho_("rho",nMaterial),
+		linearProperties_("linearProperties",nMaterial)
+	{
+
+		Kokkos::deep_copy(rho_,rho);
+		if(!readLinearDictionary(dict))
+		{
+			fatalExit;
+		}
+	}
+	
+	INLINE_FUNCTION_HD
+	cGAbsoluteLinear(const cGAbsoluteLinear&) = default;
+
+	INLINE_FUNCTION_HD
+	cGAbsoluteLinear(cGAbsoluteLinear&&) = default;
+
+	INLINE_FUNCTION_HD
+	cGAbsoluteLinear& operator=(const cGAbsoluteLinear&) = default;
+
+	INLINE_FUNCTION_HD
+	cGAbsoluteLinear& operator=(cGAbsoluteLinear&&) = default;
+
+
+	INLINE_FUNCTION_HD
+	~cGAbsoluteLinear()=default;
+
+	INLINE_FUNCTION_HD
+	int32 numMaterial()const
+	{
+		return numMaterial_;
+	}
+
+	//// - Methods
+	INLINE_FUNCTION_HD
+	void contactForce
+	(
+		const real dt,
+		const uint32 i,
+		const uint32 j,
+		const uint32 propId_i,
+		const uint32 propId_j,
+		const real Ri,
+		const real Rj,
+		const real cGFi,
+		const real cGFj,
+		const real ovrlp_n,
+		const realx3& Vr,
+		const realx3& Nij,
+		contactForceStorage& history,
+		realx3& FCn,
+		realx3& FCt
+	)const
+	{
+
+		
+		auto prop = linearProperties_(propId_i,propId_j);		
+
+
+		real f_ = ( cGFi + cGFj )/2 ;
+
+
+		real vrn = dot(Vr, Nij);	
+		realx3 Vt = Vr - vrn*Nij;
+
+		history.overlap_t_ += Vt*dt;
+
+		real mi = 3*Pi/4*pow(Ri,3)*rho_[propId_i];
+		real mj = 3*Pi/4*pow(Rj,3)*rho_[propId_j];
+
+		real sqrt_meff = sqrt((mi*mj)/(mi+mj));
+
+
+		// disipation model
+		if (addDissipationModel_==2)
+		{
+			prop.en_ = sqrt(1+((pow(prop.en_,2)-1)*f_));
+		}
+		else if (addDissipationModel_==3)
+		{
+			auto pie =3.14;
+			prop.en_ = exp((pow(f_,static_cast<real>(1.5))*log(prop.en_)*sqrt( (1-((pow(log(prop.en_),2))/(pow(log(prop.en_),2)+pow(pie,2))))/(1-(pow(f_,3)*(pow(log(prop.en_),2))/(pow(log(prop.en_),2)+pow(pie,2)))) ) ));
+		}
+
+		real ethan_  = -2.0*log(prop.en_)*sqrt(prop.kn_)/
+					sqrt(pow(log(prop.en_),2)+ pow(Pi,2));
+
+			//REPORT(0)<<"\n en n is  :  "<<END_REPORT;
+			//REPORT(0)<< prop.en_ <<END_REPORT;
+
+		FCn = (  -pow(f_,3)*prop.kn_ * ovrlp_n - sqrt_meff * pow(f_,static_cast<real>(1.5)) * ethan_ * vrn)*Nij;
+		FCt = ( -pow(f_,3)*prop.kt_ * history.overlap_t_ - sqrt_meff * pow(f_,static_cast<real>(1.5)) *  prop.ethat_*Vt);
+				
+		real ft = length(FCt);
+		real ft_fric = prop.mu_ * length(FCn);
+		
+		if(ft > ft_fric)
+		{
+			if( length(history.overlap_t_) >zero)
+			{
+				if constexpr (limited)
+				{
+					FCt *= (ft_fric/ft);
+                	history.overlap_t_ = - (FCt/prop.kt_);
+				}
+				else
+				{
+					FCt = (FCt/ft)*ft_fric;	
+				}
+				//cout<<"friction is applied here \n";
+				
+			}
+			else
+			{
+				FCt = 0.0;
+			}
+		}
+
+	}
+	
+};
+
+} //pFlow::cfModels
+
+#endif

src/Interaction/Models/contactForce/cGNonLinearCF.hpp

@@ -0,0 +1,307 @@
+/*------------------------------- phasicFlow ---------------------------------
+      O        C enter of
+     O O       E ngineering and
+    O   O      M ultiscale modeling of
+   OOOOOOO     F luid flow       
+------------------------------------------------------------------------------
+  Copyright (C): www.cemf.ir
+  email: hamid.r.norouzi AT gmail.com
+------------------------------------------------------------------------------  
+Licence:
+  This file is part of phasicFlow code. It is a free software for simulating 
+  granular and multiphase flows. You can redistribute it and/or modify it under
+  the terms of GNU General Public License v3 or any other later versions. 
+ 
+  phasicFlow is distributed to help others in their research in the field of 
+  granular and multiphase flows, but WITHOUT ANY WARRANTY; without even the
+  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+-----------------------------------------------------------------------------*/
+
+#ifndef __cGNonLinearCF_hpp__
+#define __cGNonLinearCF_hpp__
+
+#include "types.hpp"
+
+namespace pFlow::cfModels
+{
+
+template<bool limited=true>
+class cGNonLinear
+{
+public:
+
+	struct contactForceStorage
+	{
+		realx3 overlap_t_ = 0.0;
+	};
+
+	struct cGNonLinearProperties
+	{		
+		real 	Yeff_	= 1000000.0;
+		real 	Geff_	= 8000000.0;
+		real 	en_ 	= 1.0;
+		real  	mu_ 	= 0.00001;
+
+		INLINE_FUNCTION_HD
+		cGNonLinearProperties(){}
+
+		INLINE_FUNCTION_HD
+		cGNonLinearProperties(real Yeff, real Geff, real en, real mu ):
+			Yeff_(Yeff), Geff_(Geff), en_(en), mu_(mu)
+		{}		
+
+		INLINE_FUNCTION_HD
+		cGNonLinearProperties(const cGNonLinearProperties&)=default;
+
+		INLINE_FUNCTION_HD
+		cGNonLinearProperties& operator=(const cGNonLinearProperties&)=default;
+
+		INLINE_FUNCTION_HD
+		~cGNonLinearProperties() = default;
+	};
+
+protected:
+
+	using cGNonLinearArrayType = 	symArray<cGNonLinearProperties>;
+
+	int32 						numMaterial_ = 0;
+
+	ViewType1D<real>  		 	rho_;
+
+	int32 						addDissipationModel_;
+
+	cGNonLinearArrayType  		nonlinearProperties_;
+
+	bool readNonLinearDictionary(const dictionary& dict)
+	{
+		auto Yeff = dict.getVal<realVector>("Yeff");
+		auto Geff = dict.getVal<realVector>("Geff");
+		auto nu = dict.getVal<realVector>("nu");
+		auto en = dict.getVal<realVector>("en");
+		auto mu = dict.getVal<realVector>("mu");
+
+		auto nElem = Yeff.size();
+
+		if(nElem != nu.size())
+		{
+			fatalErrorInFunction<<
+			"sizes of Yeff("<<nElem<<") and nu("<<nu.size()<<") do not match.\n";
+			return false;
+		}
+
+		if(nElem != en.size())
+		{
+			fatalErrorInFunction<<
+			"sizes of Yeff("<<nElem<<") and en("<<en.size()<<") do not match.\n";
+			return false;
+		}
+
+
+		if(nElem != mu.size())
+		{
+			fatalErrorInFunction<<
+			"sizes of Yeff("<<nElem<<") and mu("<<mu.size()<<") do not match.\n";
+			return false;
+		}
+
+		
+		// check if size of vector matchs a symetric array
+		uint32 nMat;
+		if( !cGNonLinearArrayType::getN(nElem, nMat) )
+		{
+			fatalErrorInFunction<<
+			"sizes of properties do not match a symetric array with size ("<<
+			numMaterial_<<"x"<<numMaterial_<<").\n";
+			return false;
+		}
+		else if( numMaterial_ != nMat)
+		{
+			fatalErrorInFunction<<
+			"size mismatch for porperties. \n";
+			return false;
+		}
+
+		Vector<cGNonLinearProperties> prop("prop",nElem);
+		ForAll(i,Yeff)
+		{
+			prop[i] = {Yeff[i], Geff[i], en[i], mu[i]};
+		}
+
+		nonlinearProperties_.assign(prop);
+
+		auto adm = dict.getVal<word>("additionalDissipationModel");
+		if(adm == "none")
+		{
+			addDissipationModel_ = 1;
+		}
+		else if(adm == "LU")
+		{
+			addDissipationModel_ = 2;
+		}
+		else if (adm == "GB")
+		{
+			addDissipationModel_ = 3;
+		}
+		else
+		{
+			addDissipationModel_ = 1;
+		}
+
+		return true;
+
+	}
+
+	static const char* modelName()
+	{
+		if constexpr (limited)
+		{
+			return "cGNonLinearLimited";
+		}
+		else
+		{
+			return "cGNonLinearNonLimited";
+		}
+		return "";
+	}
+
+public:
+
+	TypeInfoNV(modelName());
+
+	INLINE_FUNCTION_HD
+	cGNonLinear(){}
+
+	cGNonLinear(
+		int32 nMaterial,
+		const ViewType1D<real>& rho,
+		const dictionary& dict)
+	:
+		numMaterial_(nMaterial),
+		rho_("rho",nMaterial),
+		nonlinearProperties_("cGNonLinearProperties",nMaterial)
+	{
+
+		Kokkos::deep_copy(rho_,rho);
+		if(!readNonLinearDictionary(dict))
+		{
+			fatalExit;
+		}
+	}
+	
+	INLINE_FUNCTION_HD
+	cGNonLinear(const cGNonLinear&) = default;
+
+	INLINE_FUNCTION_HD
+	cGNonLinear(cGNonLinear&&) = default;
+
+	INLINE_FUNCTION_HD
+	cGNonLinear& operator=(const cGNonLinear&) = default;
+
+	INLINE_FUNCTION_HD
+	cGNonLinear& operator=(cGNonLinear&&) = default;
+
+
+	INLINE_FUNCTION_HD
+	~cGNonLinear()=default;
+
+	INLINE_FUNCTION_HD
+	int32 numMaterial()const
+	{
+		return numMaterial_;
+	}
+
+	//// - Methods
+
+	INLINE_FUNCTION_HD
+	void contactForce
+	(
+		const real dt,
+		const uint32 i,
+		const uint32 j,
+		const uint32 propId_i,
+		const uint32 propId_j,
+		const real Ri,
+		const real Rj,
+		const real cGFi,
+		const real cGFj,
+		const real ovrlp_n,
+		const realx3& Vr,
+		const realx3& Nij,
+		contactForceStorage& history,
+		realx3& FCn,
+		realx3& FCt
+	)const
+	{
+
+		const auto prop = nonlinearProperties_(propId_i,propId_j);
+
+		const real f = 2/( 1/cGFi + 1/cGFj );
+
+		real vrn = dot(Vr, Nij);	
+		realx3 Vt = Vr - vrn*Nij;
+
+		history.overlap_t_ += Vt*dt;
+
+		real mi = 3*Pi/4*pow(Ri,static_cast<real>(3))*rho_[propId_i];
+		real mj = 3*Pi/4*pow(Rj,static_cast<real>(3))*rho_[propId_j];
+		real Reff = 1/(1/Ri + 1/Rj);
+
+		real K_hertz = 4.0/3.0*prop.Yeff_*sqrt(Reff);
+		real sqrt_meff_K_hertz = sqrt((mi*mj)/(mi+mj) * K_hertz);
+
+		real en = prop.en_;
+		if (addDissipationModel_==2)
+		{
+			en = sqrt(1+((pow(prop.en_,2)-1)*f));
+		}
+		else if (addDissipationModel_==3)
+		{
+			
+			en = exp((pow(f,static_cast<real>(1.5))*log(prop.en_)*sqrt( (1-((pow(log(prop.en_),2))/(pow(log(prop.en_),2)+pow(Pi,2))))/(1-(pow(f,3)*(pow(log(prop.en_),2))/(pow(log(prop.en_),2)+pow(Pi,2)))) ) ));
+		}
+		
+		real Kn = static_cast<real>(4.0/3.0) * prop.Yeff_ * sqrt(Reff*ovrlp_n);
+
+		real ethan_  = -2.0*log(en)*sqrt(Kn)/
+			sqrt(pow(log(en),2)+ pow(Pi,2));
+
+		FCn = ( - Kn*ovrlp_n - 
+			   sqrt_meff_K_hertz*ethan_*pow(ovrlp_n,static_cast<real>(0.25))*vrn)*Nij;
+
+		FCt = (f*f)*(- static_cast<real>(8.0) * prop.Geff_ * sqrt(Reff*ovrlp_n) ) * history.overlap_t_;
+
+		real ft = length(FCt);
+		real ft_fric = prop.mu_ * length(FCn);
+
+		// apply friction 
+		if(ft > ft_fric)
+		{
+			if( length(history.overlap_t_) >0.0)
+			{
+				if constexpr (limited)
+				{
+					real kt = static_cast<real>(8.0) * prop.Geff_ * sqrt(Reff*ovrlp_n);
+					FCt *= (ft_fric/ft);
+                	history.overlap_t_ = - FCt/(f*f*kt);
+				}
+				else
+				{
+					FCt = (FCt/ft)*ft_fric;	
+				}
+				
+			}
+			else
+			{
+				FCt = 0.0;
+			}
+		}
+
+	}
+   
+
+};
+
+} //pFlow::CFModels
+
+#endif

src/Interaction/Models/contactForce/cGRelativeLinearCF.hpp

@@ -0,0 +1,326 @@
+/*------------------------------- phasicFlow ---------------------------------
+      O        C enter of
+     O O       E ngineering and
+    O   O      M ultiscale modeling of
+   OOOOOOO     F luid flow       
+------------------------------------------------------------------------------
+  Copyright (C): www.cemf.ir
+  email: hamid.r.norouzi AT gmail.com
+------------------------------------------------------------------------------  
+Licence:
+  This file is part of phasicFlow code. It is a free software for simulating 
+  granular and multiphase flows. You can redistribute it and/or modify it under
+  the terms of GNU General Public License v3 or any other later versions. 
+ 
+  phasicFlow is distributed to help others in their research in the field of 
+  granular and multiphase flows, but WITHOUT ANY WARRANTY; without even the
+  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+-----------------------------------------------------------------------------*/
+
+#ifndef __cGRelativeLinearCF_hpp__
+#define __cGRelativeLinearCF_hpp__
+
+#include "types.hpp"
+#include "symArrays.hpp"
+
+
+
+namespace pFlow::cfModels
+{
+
+template<bool limited=true>
+class cGRelativeLinear
+{
+public:
+
+	struct contactForceStorage
+	{
+		realx3 overlap_t_ = 0.0;
+	};
+	
+	
+	struct linearProperties
+	{		
+		real 	kn_ 	= 1000.0;
+		real 	kt_	= 800.0;
+		real 	en_ 	= 1.0;
+		real  mu_ 	= 0.00001;
+
+		INLINE_FUNCTION_HD
+		linearProperties(){}
+
+		INLINE_FUNCTION_HD
+		linearProperties(real kn, real kt, real en, real mu  ):
+			kn_(kn), kt_(kt), en_(en), mu_(mu)
+		{}		
+
+		INLINE_FUNCTION_HD
+		linearProperties(const linearProperties&)=default;
+
+		INLINE_FUNCTION_HD
+		linearProperties& operator=(const linearProperties&)=default;
+
+		INLINE_FUNCTION_HD
+		~linearProperties() = default;
+	};
+	
+	
+
+protected:
+
+	using LinearArrayType = symArray<linearProperties>;
+	
+	int32 					numMaterial_ = 0;
+
+	ViewType1D<real>  		 rho_;
+
+	LinearArrayType  	linearProperties_;
+	
+	int32 		addDissipationModel_;	
+	
+
+	bool readLinearDictionary(const dictionary& dict)
+	{
+	
+		
+		auto kn = dict.getVal<realVector>("kn");
+		auto kt = dict.getVal<realVector>("kt");
+		auto en = dict.getVal<realVector>("en");
+		auto mu = dict.getVal<realVector>("mu");
+		
+
+		auto nElem = kn.size();
+
+
+		if(nElem != kt.size())
+		{
+			fatalErrorInFunction<<
+			"sizes of kn("<<nElem<<") and kt("<<kt.size()<<") do not match.\n";
+			return false;
+		}
+
+		if(nElem != en.size())
+		{
+			fatalErrorInFunction<<
+			"sizes of kn("<<nElem<<") and en("<<en.size()<<") do not match.\n";
+			return false;
+		}
+
+
+		if(nElem != mu.size())
+		{
+			fatalErrorInFunction<<
+			"sizes of kn("<<nElem<<") and mu("<<mu.size()<<") do not match.\n";
+			return false;
+		}
+
+		
+		// check if size of vector matchs a symetric array
+		uint32 nMat;
+		if( !LinearArrayType::getN(nElem, nMat) )
+		{
+			fatalErrorInFunction<<
+			"sizes of properties do not match a symetric array with size ("<<
+			numMaterial_<<"x"<<numMaterial_<<").\n";
+			return false;
+		}
+		else if( numMaterial_ != nMat)
+		{
+			fatalErrorInFunction<<
+			"size mismatch for porperties. \n"<<
+			"you supplied "<< numMaterial_<<" items in materials list and "<<
+			nMat << " for other properties.\n";
+			return false;
+		}
+
+
+		Vector<linearProperties> prop("prop", nElem);
+		ForAll(i,kn)
+		{
+			prop[i] = {kn[i], kt[i], en[i], mu[i]  };
+		}
+
+		linearProperties_.assign(prop);
+		
+
+		auto adm = dict.getVal<word>("additionalDissipationModel");
+		if(adm == "none")
+		{
+			addDissipationModel_ = 1;
+		}
+		else if(adm == "LU")
+		{
+			addDissipationModel_ = 2;
+		}
+		else if (adm == "GB")
+		{
+			addDissipationModel_ = 3;
+		}
+		else
+		{
+			addDissipationModel_ = 1;
+		}
+
+		return true;
+
+	}
+
+	static const char* modelName()
+	{
+		if constexpr (limited)
+		{
+			return "cGRelativeLinearLimited";
+		}
+		else
+		{
+			return "cGRelativeLinearNonLimited";
+		}
+		return "";
+	}
+
+public:
+
+
+	TypeInfoNV(modelName());
+
+	INLINE_FUNCTION_HD
+	cGRelativeLinear(){}
+
+	cGRelativeLinear(int32 nMaterial, const ViewType1D<real>& rho, const dictionary& dict)
+	:
+		numMaterial_(nMaterial),
+		rho_("rho",nMaterial),
+		linearProperties_("linearProperties",nMaterial)
+	{
+
+		Kokkos::deep_copy(rho_,rho);
+		if(!readLinearDictionary(dict))
+		{
+			fatalExit;
+		}
+	}
+	
+	INLINE_FUNCTION_HD
+	cGRelativeLinear(const cGRelativeLinear&) = default;
+
+	INLINE_FUNCTION_HD
+	cGRelativeLinear(cGRelativeLinear&&) = default;
+
+	INLINE_FUNCTION_HD
+	cGRelativeLinear& operator=(const cGRelativeLinear&) = default;
+
+	INLINE_FUNCTION_HD
+	cGRelativeLinear& operator=(cGRelativeLinear&&) = default;
+
+
+	INLINE_FUNCTION_HD
+	~cGRelativeLinear()=default;
+
+	INLINE_FUNCTION_HD
+	int32 numMaterial()const
+	{
+		return numMaterial_;
+	}
+
+	//// - Methods
+	INLINE_FUNCTION_HD
+	void contactForce
+	(
+		const real dt,
+		const uint32 i,
+		const uint32 j,
+		const uint32 propId_i,
+		const uint32 propId_j,
+		const real Ri,
+		const real Rj,
+		const real cGFi,
+		const real cGFj,
+		const real ovrlp_n,
+		const realx3& Vr,
+		const realx3& Nij,
+		contactForceStorage& history,
+		realx3& FCn,
+		realx3& FCt
+	)const
+	{
+		
+		auto prop = linearProperties_(propId_i,propId_j);		
+
+		real f_ = ( cGFi + cGFj )/2 ;
+
+
+		real vrn = dot(Vr, Nij);	
+		realx3 Vt = Vr - vrn*Nij;
+
+		history.overlap_t_ += Vt*dt;
+
+		real mi = 3*Pi/4*pow(Ri,3)*rho_[propId_i];
+		real mj = 3*Pi/4*pow(Rj,3)*rho_[propId_j];
+
+		real sqrt_meff = sqrt((mi*mj)/(mi+mj));
+		
+		real en = prop.en_;
+		if (addDissipationModel_==2)
+		{
+			en = sqrt(1+((pow(prop.en_,2)-1)*f_));
+		}
+		else if (addDissipationModel_==3)
+		{
+			
+			en = exp(
+				(
+					pow(f_,static_cast<real>(1.5))*
+					log(prop.en_)*
+					sqrt( 
+						(1-((pow(log(prop.en_),static_cast<real>(2.0))
+						)/
+						(
+							pow(log(prop.en_),static_cast<real>(2.0))+
+							pow(Pi,static_cast<real>(2.0)))))/
+							(1-(pow(f_,3)*(pow(log(prop.en_),2))/
+							(pow(log(prop.en_),static_cast<real>(2.0))+
+							pow(Pi,static_cast<real>(2.0))))) ) ));
+		}
+
+		real ethan_  = -2.0*log(en)*sqrt(prop.kn_)/
+			sqrt(pow(log(en),2)+ pow(Pi,2));
+		
+
+		FCn = ( -f_*prop.kn_ * ovrlp_n - sqrt_meff * pow(f_,half) * ethan_ * vrn)*Nij;
+		FCt = ( -f_*prop.kt_ * history.overlap_t_);
+		
+
+		
+		real ft = length(FCt);
+		real ft_fric = prop.mu_ * length(FCn);
+		
+		if(ft > ft_fric)
+		{
+			if( length(history.overlap_t_) >static_cast<real>(0.0))
+			{
+				if constexpr (limited)
+				{
+					FCt *= (ft_fric/ft);
+                	history.overlap_t_ = - (FCt/prop.kt_);
+				}
+				else
+				{
+					FCt = (FCt/ft)*ft_fric;	
+				}
+				//cout<<"friction is applied here \n";
+				
+			}
+			else
+			{
+				FCt = 0.0;
+			}
+		}
+
+	}
+	
+};
+
+} //pFlow::cfModels
+
+#endif

src/Interaction/Models/contactForce/linearCF.hpp

@@ -133,18 +133,19 @@ protected:
 			return false;
 		}
 
-		realVector etha_n(nElem);
+		realVector etha_n("etha_n", nElem);
-		realVector etha_t(nElem);
+		realVector etha_t("etha_t", nElem);
+
 		ForAll(i , kn)
 		{
 			etha_n[i] = -2.0*log(en[i])*sqrt(kn[i])/
-					sqrt(pow(log(en[i]),2.0)+ pow(Pi,2.0));
+					sqrt(pow(log(en[i]),static_cast<real>(2.0))+ pow(Pi,static_cast<real>(2.0)));
 
 			etha_t[i] = -2.0*log( et[i]*sqrt(kt[i]) )/
-					sqrt(pow(log(et[i]),2.0)+ pow(Pi,2.0));
+					sqrt(pow(log(et[i]),static_cast<real>(2.0))+ pow(Pi,static_cast<real>(2.0)));
 		}
 
-		Vector<linearProperties> prop(nElem);
+		Vector<linearProperties> prop("prop", nElem);
 		ForAll(i,kn)
 		{
 			prop[i] = {kn[i], kt[i], etha_n[i], etha_t[i], mu[i]};
@@ -219,10 +220,10 @@ public:
 	void contactForce
 	(
 		const real dt,
-		const int32 i,
+		const uint32 i,
-		const int32 j,
+		const uint32 j,
-		const int32 propId_i,
+		const uint32 propId_i,
-		const int32 propId_j,
+		const uint32 propId_j,
 		const real Ri,
 		const real Rj,
 		const real ovrlp_n,
@@ -242,8 +243,8 @@ public:
 
 		history.overlap_t_ += Vt*dt;
 
-		real mi = 3*Pi/4*pow(Ri,3.0)*rho_[propId_i];
+		real mi = 3*Pi/4*pow(Ri,static_cast<real>(3.0))*rho_[propId_i];
-		real mj = 3*Pi/4*pow(Rj,3.0)*rho_[propId_j];
+		real mj = 3*Pi/4*pow(Rj,static_cast<real>(3.0))*rho_[propId_j];
 
 		real sqrt_meff = sqrt((mi*mj)/(mi+mj));
 

src/Interaction/Models/contactForce/nonLinearCF.hpp

@@ -121,7 +121,7 @@ protected:
 		}
 
 
-		realVector etha_n(nElem);
+		realVector etha_n("etha_n",nElem);
 		
 		ForAll(i , en)
 		{
@@ -131,13 +131,13 @@ protected:
 			// we take out sqrt(meff*K_hertz) here and then consider this term 
 			// when calculating damping part. 
 			etha_n[i] = -2.2664*log(en[i])/
-					sqrt(pow(log(en[i]),2.0)+ pow(Pi,2.0));
+					sqrt(pow(log(en[i]),static_cast<real>(2.0))+ pow(Pi,static_cast<real>(2.0)));
 
 			// no damping for tangential part 
 
 		}
 
-		Vector<nonLinearProperties> prop(nElem);
+		Vector<nonLinearProperties> prop("prop",nElem);
 		ForAll(i,Yeff)
 		{
 			prop[i] = {Yeff[i], Geff[i], etha_n[i], mu[i]};
@@ -214,10 +214,10 @@ public:
 	void contactForce
 	(
 		const real dt,
-		const int32 i,
+		const uint32 i,
-		const int32 j,
+		const uint32 j,
-		const int32 propId_i,
+		const uint32 propId_i,
-		const int32 propId_j,
+		const uint32 propId_j,
 		const real Ri,
 		const real Rj,
 		const real ovrlp_n,
@@ -255,7 +255,7 @@ public:
 		// apply friction 
 		if(ft > ft_fric)
 		{
-			if( length(history.overlap_t_) >0.0)
+			if( length(history.overlap_t_) >zero)
 			{
 				if constexpr (limited)
 				{

src/Interaction/Models/contactForce/nonLinearMod.hpp

@@ -121,7 +121,7 @@ protected:
 		}
 
 
-		Vector<nonLinearProperties> prop(nElem);
+		Vector<nonLinearProperties> prop("prop",nElem);
 		ForAll(i,Yeff)
 		{
 			prop[i] = {Yeff[i], Geff[i], etha_n[i], mu[i]};
@@ -198,10 +198,10 @@ public:
 	void contactForce
 	(
 		const real dt,
-		const int32 i,
+		const uint32 i,
-		const int32 j,
+		const uint32 j,
-		const int32 propId_i,
+		const uint32 propId_i,
-		const int32 propId_j,
+		const uint32 propId_j,
 		const real Ri,
 		const real Rj,
 		const real ovrlp_n,

src/Interaction/Models/grainContactForceModels.hpp

@@ -0,0 +1,50 @@
+/*------------------------------- phasicFlow ---------------------------------
+      O        C enter of
+     O O       E ngineering and
+    O   O      M ultiscale modeling of
+   OOOOOOO     F luid flow       
+------------------------------------------------------------------------------
+  Copyright (C): www.cemf.ir
+  email: hamid.r.norouzi AT gmail.com
+------------------------------------------------------------------------------  
+Licence:
+  This file is part of phasicFlow code. It is a free software for simulating 
+  granular and multiphase flows. You can redistribute it and/or modify it under
+  the terms of GNU General Public License v3 or any other later versions. 
+ 
+  phasicFlow is distributed to help others in their research in the field of 
+  granular and multiphase flows, but WITHOUT ANY WARRANTY; without even the
+  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+-----------------------------------------------------------------------------*/
+
+#ifndef __grainContactForceModels_hpp__
+#define __grainContactForceModels_hpp__
+
+#include "cGAbsoluteLinearCF.hpp"
+#include "cGRelativeLinearCF.hpp"
+#include "cGNonLinearCF.hpp"
+
+#include "grainRolling.hpp"
+
+
+
+namespace pFlow::cfModels 
+{
+
+
+using limitedCGAbsoluteLinearGrainRolling 	= grainRolling<cGAbsoluteLinear<true>>;
+using nonLimitedCGAbsoluteLinearGrainRolling = grainRolling<cGAbsoluteLinear<false>>;
+
+using limitedCGRelativeLinearGrainRolling   = grainRolling<cGRelativeLinear<true>>;
+using nonLimitedCGRelativeLinearGrainRolling = grainRolling<cGRelativeLinear<false>>;
+
+using limitedCGNonLinearGrainRolling   = grainRolling<cGNonLinear<true>>;
+using nonLimitedCGNonLinearGrainRolling = grainRolling<cGNonLinear<false>>;
+
+
+}
+
+
+
+#endif //__grainContactForceModels_hpp__

src/Interaction/Models/rolling/grainRolling.hpp

@@ -0,0 +1,119 @@
+/*------------------------------- phasicFlow ---------------------------------
+      O        C enter of
+     O O       E ngineering and
+    O   O      M ultiscale modeling of
+   OOOOOOO     F luid flow       
+------------------------------------------------------------------------------
+  Copyright (C): www.cemf.ir
+  email: hamid.r.norouzi AT gmail.com
+------------------------------------------------------------------------------  
+Licence:
+  This file is part of phasicFlow code. It is a free software for simulating 
+  granular and multiphase flows. You can redistribute it and/or modify it under
+  the terms of GNU General Public License v3 or any other later versions. 
+ 
+  phasicFlow is distributed to help others in their research in the field of 
+  granular and multiphase flows, but WITHOUT ANY WARRANTY; without even the
+  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+-----------------------------------------------------------------------------*/
+
+#ifndef __grainRolling_hpp__
+#define __grainRolling_hpp__
+
+
+namespace pFlow::cfModels
+{
+
+template<typename contactForceModel>
+class grainRolling
+:
+	public contactForceModel
+{
+public:
+	
+	using contactForceStorage = 
+		typename contactForceModel::contactForceStorage;
+
+
+	realSymArray_D  	mur_;
+
+	bool readGrainDict(const dictionary& dict)
+	{
+		auto mur = dict.getVal<realVector>("mur");
+
+		uint32 nMat;
+
+		if(!realSymArray_D::getN(mur.size(),nMat) || nMat != this->numMaterial())
+		{
+			fatalErrorInFunction<<
+			"wrong number of values supplied in mur. \n";
+			return false;
+		}
+
+		mur_.assign(mur);
+
+		return true; 
+	}
+
+public:
+
+	TypeInfoNV(word("normal<"+contactForceModel::TYPENAME()+">"));
+	
+
+	grainRolling(int32 nMaterial, const ViewType1D<real>& rho, const dictionary& dict)
+	:
+		contactForceModel(nMaterial, rho, dict),
+		mur_("mur", nMaterial)
+	{
+		if(!readGrainDict(dict))
+		{
+			fatalExit;
+		}
+	}
+
+	INLINE_FUNCTION_HD
+	void rollingFriction
+	(
+		const real dt,
+		const uint32 i,
+		const uint32 j,
+		const uint32 propId_i,
+		const uint32 propId_j,
+		const real Ri,
+		const real Rj,
+		const real cGFi,
+		const real cGFj,
+		const realx3& wi,
+		const realx3& wj,
+		const realx3& Nij,
+		const realx3& FCn,
+		realx3& Mri,
+		realx3& Mrj
+	)const
+	{
+
+		realx3 w_hat = wi-wj;
+		real w_hat_mag = length(w_hat);
+
+		if( !equal(w_hat_mag,static_cast<real>(0.0)) )
+			w_hat /= w_hat_mag;
+		else
+			w_hat = static_cast<real>(0.0);
+
+		auto Reff = (Ri*Rj)/(Ri+Rj);
+
+		Mri = ( -mur_(propId_i,propId_j) *length(FCn) * Reff ) * w_hat ;
+       
+       	//removing the normal part 
+       	// Mri = Mri - ( (Mri .dot. nij)*nij )
+
+       	Mrj = -Mri;
+	}
+
+
+};
+
+}
+ 
+#endif 

src/Interaction/Models/rolling/normalRolling.hpp

@@ -76,10 +76,10 @@ public:
 	void rollingFriction
 	(
 		const real dt,
-		const int32 i,
+		const uint32 i,
-		const int32 j,
+		const uint32 j,
-		const int32 propId_i,
+		const uint32 propId_i,
-		const int32 propId_j,
+		const uint32 propId_j,
 		const real Ri,
 		const real Rj,
 		const realx3& wi,
@@ -94,10 +94,10 @@ public:
 		realx3 w_hat = wi-wj;
 		real w_hat_mag = length(w_hat);
 
-		if( !equal(w_hat_mag,0.0) )
+		if( !equal(w_hat_mag,static_cast<real>(0.0)) )
 			w_hat /= w_hat_mag;
 		else
-			w_hat = 0.0;
+			w_hat = static_cast<real>(0.0);
 
 		auto Reff = (Ri*Rj)/(Ri+Rj);
 

src/Interaction/contactLists/sortedContactList.hpp

@@ -53,7 +53,7 @@ protected:
 
 	ViewType1D<ValueType,ExecutionSpace> 	values_;
 
-	int32 									size0_ = 0;
+	uint32 									size0_ = 0;
 
 	ViewType1D<PairType,ExecutionSpace> 	sortedPairs0_;
 
@@ -73,20 +73,24 @@ protected:
 	using rpReFillPairs = Kokkos::RangePolicy<
 		ExecutionSpace,
 		Kokkos::Schedule<Kokkos::Static>,
-		Kokkos::IndexType<int32>,
+		Kokkos::IndexType<uint32>,
 		TagReFillPairs>;
 
 public:
 
 	TypeInfoNV("sortedContactList");
 
-
+	sortedContactList(uint32 initialSize =1)
-	sortedContactList(int32 initialSize =1)
 	:
-		SortedPairs(initialSize),
+		sortedContactList("sortedContactList", initialSize)
-		values_("values", SortedPairs::capacity()),
+	{}
-		sortedPairs0_("sortedPairs0", SortedPairs::capacity()),
+	
-		values0_("values0", SortedPairs::capacity())
+	sortedContactList(const word& name, uint32 initialSize =1)
+	:
+		SortedPairs(name, initialSize),
+		values_(groupNames(name, "values"), SortedPairs::capacity()),
+		sortedPairs0_(groupNames(name, "sortedPairs0"), SortedPairs::capacity()),
+		values0_(groupNames(name, "values0"), SortedPairs::capacity())
 	{}
 
 	bool beforeBroadSearch()
@@ -114,31 +118,31 @@ public:
 	}
 
 	INLINE_FUNCTION_HD
-	ValueType getValue(int32 idx)const
+	ValueType getValue(uint32 idx)const
 	{
 		return values_[idx];
 	}
 
 	INLINE_FUNCTION_HD
-	void setValue(int32 idx, const ValueType& val)const
+	void setValue(uint32 idx, const ValueType& val)const
 	{
 		values_[idx] = val;
 	}
 
 	INLINE_FUNCTION_HD
-	void operator()(TagReFillPairs, int32 idx)const
+	void operator()(TagReFillPairs, uint32 idx)const
 	{
 
-		auto searchLen = max(size0_/1000,10);
+		uint32 searchLen = max(size0_/1000u,10u);
-		auto start 	= max(0,idx-searchLen);
+		uint32 start 	= idx-min(searchLen,idx);
-		auto end 	= min(size0_,idx+searchLen);
+		uint32 end 	= min(size0_,idx+searchLen);
 		auto newPair = this->sortedPairs_[idx];
 		if(	auto idx0 = binarySearch(
 				sortedPairs0_,
 				start,
 				end,
 				newPair);
-				idx0>=0)
+				idx0!=static_cast<uint32>(-1))
 		{
 			values_[idx] = values0_[idx0];
 		}
@@ -147,7 +151,7 @@ public:
 			start, 
 			end,
 			newPair);
-			idx0>=0)
+			idx0!= static_cast<uint32>(-1) )
 		{
 			values_[idx] = values0_[idx0];
 			

src/Interaction/contactLists/sortedPairs.hpp

@@ -52,24 +52,24 @@ public:
 	{
 		using PairType = typename sortedPairs::PairType;
 
-		int32 size_;
+		uint32 size_;
 
 		ViewType1D<PairType,ExecutionSpace> sortedParis_;
 
 		INLINE_FUNCTION_HD
-		int32 size()const { return size_; }
+		uint32 size()const { return size_; }
 
 		INLINE_FUNCTION_HD
-		int32 loopCount()const { return size_; }
+		uint32 loopCount()const { return size_; }
 
 		INLINE_FUNCTION_HD
-		bool isValid(int32 i)const { return i<size_; }
+		bool isValid(uint32 i)const { return i<size_; }
 
 		INLINE_FUNCTION_HD
-		PairType getPair(int i)const {	return sortedParis_[i];	}
+		PairType getPair(uint32 i)const {	return sortedParis_[i];	}
 
 		INLINE_FUNCTION_HD
-		bool getPair(int32 i, PairType& pair)const {
+		bool getPair(uint32 i, PairType& pair)const {
 			if(i<size_)	{
 				pair = sortedParis_[i];
 				return true;
@@ -85,22 +85,22 @@ public:
 protected:
 
 	/// size of pair list
-	int32 			size_ = 0;
+	uint32 			size_ = 0;
 
-	ViewType1D<int32,ExecutionSpace>		flags_;
+	ViewType1D<uint32,ExecutionSpace>		flags_;
 
 	ViewType1D<PairType,ExecutionSpace> 	sortedPairs_;
 
 	using rpFillFlag = Kokkos::RangePolicy<
 		ExecutionSpace,
 		Kokkos::Schedule<Kokkos::Static>,
-		Kokkos::IndexType<int32>,
+		Kokkos::IndexType<uint32>,
 		TagFillFlag	>;
 
 	using rpFillPairs = Kokkos::RangePolicy<
 		ExecutionSpace,
 		Kokkos::Schedule<Kokkos::Static>,
-		Kokkos::IndexType<int32>,
+		Kokkos::IndexType<uint32>,
 		TagFillPairs>;
 	
 public:
@@ -110,11 +110,11 @@ public:
 
 
 	// constructors
-	sortedPairs(int32 initialSize =1)
+	explicit sortedPairs(const word& name, uint32 initialSize =1)
 	:
 		UnsortedPairs(initialSize),
-		flags_("flags_",UnsortedPairs::capacity()+1),
+		flags_( groupNames(name, "flags_"), UnsortedPairs::capacity()+1),
-		sortedPairs_("sortedPairs_",UnsortedPairs::capacity())
+		sortedPairs_(groupNames(name, "sortedPairs_"), UnsortedPairs::capacity())
 	{}
 
 	
@@ -134,7 +134,7 @@ public:
 	//   return the pair at index idx
 	//   perform no check for size and existance
 	INLINE_FUNCTION_HD
-	PairType getPair(int32 idx)const
+	PairType getPair(uint32 idx)const
 	{
 		return sortedPairs_[idx];
 	}
@@ -142,7 +142,7 @@ public:
 	// - Device/host call
 	//   return the pair at index idx
 	INLINE_FUNCTION_HD
-	bool getPair(int32 idx, PairType& p)const
+	bool getPair(uint32 idx, PairType& p)const
 	{
 		if(isValid(idx))
 		{
@@ -156,7 +156,7 @@ public:
 	}
 
 	INLINE_FUNCTION_HD
-	bool isValid(int32 idx)const
+	bool isValid(uint32 idx)const
 	{
 		return idx < size_;	
 	}
@@ -164,12 +164,12 @@ public:
 
 	//use this when the value of size_ is updated
 	INLINE_FUNCTION_H
-	int32 size()const
+	uint32 size()const
 	{
 		return size_;
 	}
 
-	int32 loopCount()const
+	uint32 loopCount()const
 	{
 		return size_;
 	}
@@ -189,7 +189,7 @@ public:
 	void prepareSorted()
 	{
 		// first check the size of flags_ 
-		int32 capacity = UnsortedPairs::capacity();
+		uint32 capacity = UnsortedPairs::capacity();
 
 		if( capacity+1 > flags_.size() )
 		{
@@ -218,7 +218,7 @@ public:
 		if( size_>sortedPairs_.size() )
 		{
 			// get more space to prevent reallocations in next iterations
-			int32 len = size_*1.1+1; 
+			uint32 len = size_*1.1+1; 
 			reallocNoInit(sortedPairs_, len);
 		}
 		
@@ -235,7 +235,7 @@ public:
 	}
 
 	INLINE_FUNCTION_HD
-	void operator()(TagFillFlag, int32 i)const
+	void operator()(TagFillFlag, uint32 i)const
 	{
 		if(this->container_.valid_at(i) )
 			flags_[i] = 1;
@@ -244,7 +244,7 @@ public:
 	}
 
 	INLINE_FUNCTION_HD
-	void operator()(TagFillPairs, int32 i)const
+	void operator()(TagFillPairs, uint32 i)const
 	{
 		auto fi = flags_[i];
 		if(fi!=flags_[i+1])

src/Interaction/contactLists/unsortedContactList.hpp

@@ -17,10 +17,11 @@ Licence:
   implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 
 -----------------------------------------------------------------------------*/
-
 #ifndef __unsortedContactList_hpp__
 #define __unsortedContactList_hpp__ 
 
+#include "unsortedPairs.hpp"
+
 namespace pFlow
 {
 
@@ -72,7 +73,7 @@ protected:
 	using rpFillPairs = Kokkos::RangePolicy<
 		ExecutionSpace,
 		Kokkos::Schedule<Kokkos::Static>,
-		Kokkos::IndexType<int32>,
+		Kokkos::IndexType<uint32>,
 		TagReFillPairs>;
 
 
@@ -80,12 +81,17 @@ public:
 
 	TypeInfoNV("unsortedContactList");
 
-	unsortedContactList(int32 capacity=1)
+	explicit unsortedContactList(uint32 capacity=1)
+	:
+	unsortedContactList("unsortedContactList", capacity)
+	{}
+	
+	unsortedContactList(const word& name, uint32 capacity=1)
 	:
 		UnsortedPairs(capacity),
-		values_("values", UnsortedPairs::capacity()),
+		values_(groupNames(name, "values"), UnsortedPairs::capacity()),
 		container0_(capacity),
-		values0_("values0",container0_.capacity())
+		values0_(groupNames(name, "values0"),container0_.capacity())
 	{}
 
 
@@ -94,7 +100,8 @@ public:
 		// swap conainer and values 
 		swapViews(values0_, values_);
 		swapViews(container0_, this->container_);
-		return UnsortedPairs::beforeBroadSearch();
+		UnsortedPairs::beforeBroadSearch();
+		return true;
 	}
 
 	bool afterBroadSearch()
@@ -122,7 +129,7 @@ public:
 	INLINE_FUNCTION_HD
 	bool getValue(const PairType& p, ValueType& val)const
 	{
-		if(auto idx = this->find(p); idx>=0)
+		if(auto idx = this->find(p); idx!=static_cast<uint32>(-1))
 		{
 			val = getValue(idx); 
 			return true;
@@ -131,7 +138,7 @@ public:
 	}
 
 	INLINE_FUNCTION_HD
-	void setValue(int32 idx, const ValueType& val)const
+	void setValue(uint32 idx, const ValueType& val)const
 	{
 		values_[idx] = val;
 	}
@@ -139,7 +146,7 @@ public:
 	INLINE_FUNCTION_HD
 	bool setValue(const PairType& p, const ValueType& val)const
 	{
-		if(auto idx = this->find(p); idx>=0)
+		if(uint32 idx = this->find(p); idx!=static_cast<uint32>(-1))
 		{
 			setValue(idx, val);
 			return true;;
@@ -148,13 +155,13 @@ public:
 	}
 
 	INLINE_FUNCTION_HD
-	void operator()(TagReFillPairs, int32 idx)const
+	void operator()(TagReFillPairs, uint32 idx)const
 	{
 		if( this->isValid(idx) )
 		{
-			if( int32 idx0 = 
+			if( uint32 idx0 = 
 					container0_.find(this->getPair(idx));
-					idx0>=0 )
+					idx0!= static_cast<uint32>(-1) )
 			{
 				values_[idx] = values0_[idx0];
 			}

src/Interaction/contactLists/unsortedPairs.hpp

@@ -41,7 +41,7 @@ public:
 
 	using memory_space 		= typename ExecutionSpace::memory_space;
 
-	using PairType 			= kPair<idType,idType>;
+	using PairType 			= Pair<idType,idType>;
 
 	using ContainerType 	= unorderedSet<PairType, ExecutionSpace>;
 
@@ -52,19 +52,19 @@ public:
 		ContainerType 		Container_;
 
 		INLINE_FUNCTION_HD
-		int32 size()const { return Container_.size(); }
+		uint32 size()const { return Container_.size(); }
 
 		INLINE_FUNCTION_HD
-		int32 loopCount()const { return Container_.capacity(); }
+		uint32 loopCount()const { return Container_.capacity(); }
 
 		INLINE_FUNCTION_HD
-		bool isValid(int32 idx)const { return Container_.valid_at(idx); }
+		bool isValid(uint32 idx)const { return Container_.valid_at(idx); }
 
 		INLINE_FUNCTION_HD
-		PairType getPair(int idx)const {	return Container_.key_at(idx); }
+		PairType getPair(uint32 idx)const {	return Container_.key_at(idx); }
 
 		INLINE_FUNCTION_HD
-		bool getPair(int32 idx, PairType& pair)const {
+		bool getPair(uint32 idx, PairType& pair)const {
 			if(Container_.valid_at(idx))	{
 				pair = Container_.key_at(idx);
 				return true;
@@ -84,7 +84,7 @@ public:
 	TypeInfoNV("unsorderedPairs");
 
 	// constructor
-	unsortedPairs(int32 capacity=1)
+	explicit unsortedPairs(uint32 capacity=1)
 	:
 		container_(capacity) // the minimum capacity would be 128 
 	{}
@@ -102,20 +102,20 @@ public:
 	
 	// - Device call
 	INLINE_FUNCTION_HD
-	int32 insert(idType i, idType j)const
+	uint32 insert(idType i, idType j)const
 	{
 		if(auto insertResult = container_.insert(PairType(i,j)); insertResult.failed())
-			return -1;
+			return static_cast<uint32>(-1);
 		else
 			return insertResult.index();
 			
 	}
 
 	INLINE_FUNCTION_HD
-	int32 insert(const PairType& p)const
+	uint32 insert(const PairType& p)const
 	{
 		if(auto insertResult = container_.insert(p); insertResult.failed())
-			return -1;
+			return static_cast<uint32>(-1);
 		else
 			return insertResult.index();
 
@@ -125,7 +125,7 @@ public:
 	//   return the pair at index idx
 	//   perform no check for size and existance
 	INLINE_FUNCTION_HD
-	PairType getPair(int32 idx)const
+	PairType getPair(uint32 idx)const
 	{
 		return container_.key_at(idx);
 	}
@@ -133,7 +133,7 @@ public:
 	// - Device call
 	//   return the pair at index idx
 	INLINE_FUNCTION_HD
-	bool getPair(int32 idx, PairType& p)const
+	bool getPair(uint32 idx, PairType& p)const
 	{
 		if(container_.valid_at(idx))
 		{
@@ -148,36 +148,36 @@ public:
 	}
 
 	INLINE_FUNCTION_HD
-	int32 find(const PairType & p)const
+	uint32 find(const PairType & p)const
 	{
 		if( auto idx = container_.find(p); 
 			idx != Kokkos::UnorderedMapInvalidIndex )
 			return idx;
 		else
-			return -1;
+			return static_cast<uint32>(-1);
 	}
 
 	INLINE_FUNCTION_HD
-	bool isValid(int32 idx)const
+	bool isValid(uint32 idx)const
 	{
 		return container_.valid_at(idx);	
 	}
 
 
 	INLINE_FUNCTION_HD
-	int32 capacity() const
+	uint32 capacity() const
 	{
 		return container_.capacity();
 	}
 
-	int32 loopCount()const
+	uint32 loopCount()const
 	{
 		return container_.capacity();
 	}
 	
 	//use this when the value of size_ is updated
 	INLINE_FUNCTION_H
-	int32 size()const
+	uint32 size()const
 	{
 		return container_.size();
 	}
@@ -190,11 +190,13 @@ public:
 	/// increase the capacity of the container by at-least len 
 	/// the content will be erased. 
 	INLINE_FUNCTION_H
-	void increaseCapacityBy(int32 len)
+	void increaseCapacityBy(uint32 len)
 	{
 		uint newCap = container_.capacity()+len;
 		this->clear();
+		//output<<"----------------before "<<capacity()<< " " << size()<<endl;
 		container_.rehash(newCap);
+		//output<<"----------------after "<<capacity()<< " " << size()<<endl;
 	}
 
 	INLINE_FUNCTION_H

src/Interaction/contactSearch/ContactSearch/ContactSearch.hpp

@@ -22,16 +22,18 @@ Licence:
 #ifndef __ContactSearch_hpp__
 #define __ContactSearch_hpp__
 
-
+#include "contactSearchGlobals.hpp"
 #include "contactSearch.hpp"
 #include "box.hpp"
+#include "particles.hpp"
+#include "geometry.hpp"
+#include "boundaryContactSearchList.hpp"
 
 namespace pFlow
 {
 
 template<
-	template<class> class BaseMethod,
+	class searchMethod
-	template<class> class WallMapping	
 >
 class ContactSearch
 :
@@ -39,210 +41,140 @@ class ContactSearch
 {
 public:
 	
-	using IdType 			= typename contactSearch::IdType;
+	using IdType 			= uint32;
 
-	using IndexType 		= typename contactSearch::IndexType;
+	using ExecutionSpace 	= DefaultExecutionSpace;
 
-	using ExecutionSpace 	= typename contactSearch::ExecutionSpace;
+	using SearchMethodType = searchMethod;
 
-	using PairContainerType = typename contactSearch::PairContainerType;
+private:
 	
-	using ParticleContactSearchType = 
+	uniquePtr<SearchMethodType> 	ppwContactSearch_ = nullptr;
-		BaseMethod<
-			ExecutionSpace>;
 
-	using WallMappingType =
+	boundaryContactSearchList 		csBoundaries_;
-		WallMapping<
-			ExecutionSpace>;
 
-protected:
+	bool BroadSearch(
+		const timeInfo& ti,
+		csPairContainerType& ppPairs,
+		csPairContainerType& pwPairs,
+		bool force = false) override
+	{
 		
+		auto position = Particles().pointPosition().deviceViewAll();
+		auto flags = Particles().dynPointStruct().activePointsMaskDevice();
+		auto diam = Particles().boundingSphere().deviceViewAll();
 
-	uniquePtr<ParticleContactSearchType> particleContactSearch_ = nullptr;
+		return ppwContactSearch_().broadSearch(
+			ti.iter(),
+			ti.t(),
+			ti.dt(),
+			ppPairs, 
+			pwPairs,
+			position, 
+			flags, 
+			diam,
+			force
+		);
+	}
 
-	uniquePtr<WallMappingType> 			 wallMapping_ = nullptr;
+	bool BoundaryBroadSearch(
+		uint32 bndryIndex,
+		const timeInfo& ti,
+		csPairContainerType& ppPairs,
+		csPairContainerType& pwPairs,
+		bool force = false)override
+	{		
+		return csBoundaries_[bndryIndex].broadSearch(
+			ti.iter(), 
+			ti.t(), 
+			ti.dt(), 
+			ppPairs, 
+			pwPairs, 
+			force
+		);
+	}
 
 public:
 
-	TypeInfoTemplate2("ContactSearch", ParticleContactSearchType, WallMappingType);
+	TypeInfoTemplate11("ContactSearch", SearchMethodType);
 
 	ContactSearch(
 		const dictionary& csDict,
-		const box& domain,
+		const box& extDomain,
 	 	const particles& prtcl,
 	 	const geometry& geom,
 	 	Timers& timers)
 	:
-		contactSearch(csDict, domain, prtcl, geom, timers)
+		contactSearch(
-		
+			csDict, 
+			extDomain, 
+			prtcl, 
+			geom, 
+			timers),
+		csBoundaries_(
+			csDict, 
+			Particles().pStruct().boundaries(),
+			*this)
 	{
 
-		auto method = dict().getVal<word>("method");
+		real minD;
-		auto wmMethod = dict().getVal<word>("wallMapping");
+		real maxD;
-		
-		auto nbDict = dict().subDict(method+"Info");
-
-		real minD, maxD;
 		this->Particles().boundingSphereMinMax(minD, maxD);
 		
-		const auto& position = this->Particles().pointPosition().deviceVectorAll();
+		const auto& position = this->Particles().pointPosition().deviceViewAll();
-		const auto& diam = this->Particles().boundingSphere().deviceVectorAll();
+		const auto& flags = this->Particles().dynPointStruct().activePointsMaskDevice();
+		const auto& diam = this->Particles().boundingSphere().deviceViewAll();
 
-		particleContactSearch_ = 
+		uint32 wnPoints = this->Geometry().numPoints();
-			makeUnique<ParticleContactSearchType>
+		uint32 wnTri    = this->Geometry().size();
+		const auto& wPoints = this->Geometry().points().deviceViewAll();
+		const auto& wVertices = this->Geometry().vertices().deviceViewAll();
+		const auto& wNormals = this->Geometry().normals().deviceViewAll();
+
+		ppwContactSearch_ = 
+			makeUnique<SearchMethodType>
 			(
-				nbDict,
+				csDict,
-				this->domain(),
+				this->extendedDomainBox(),
 				minD,
 				maxD,
 				position,
-				diam
+				flags,
-			);
+				diam,
-		REPORT(2)<<"Contact search algorithm for particle-particle is "<<
-				 greenText(particleContactSearch_().typeName())<<endREPORT;
-
-
-		auto wmDict = dict().subDict(wmMethod+"Info");
-
-		int32 wnPoints = this->Geometry().numPoints();
-		int32 wnTri    = this->Geometry().size();
-
-		const auto& wPoints = this->Geometry().points().deviceVectorAll();
-		const auto& wVertices = this->Geometry().vertices().deviceVectorAll();
-
-		wallMapping_ = 
-			makeUnique<WallMappingType>(
-				wmDict,
-				particleContactSearch_().numLevels(),
-				particleContactSearch_().getCellsLevels(),
 				wnPoints,
 				wnTri,
 				wPoints,
-				wVertices
+				wVertices,
-				);
+				wNormals
-		REPORT(2)<<"Wall mapping algorithm for particle-wall is "<<
+			);
-				 greenText(wallMapping_().typeName())<< endREPORT;
-
 	}
 
-
 	add_vCtor(
 		contactSearch,
 		ContactSearch,
 		dictionary);
 
-	bool broadSearch(
+	bool enterBroadSearchBoundary(const timeInfo& ti, bool force=false)const override;
-		PairContainerType& ppPairs,
+	
-		PairContainerType& pwPairs,
+
-		bool force = false) override
+	real sizeRatio()const override
 	{
-
+		return ppwContactSearch_().sizeRatio();
-		
-		if(particleContactSearch_)
-		{
-			auto activeRange = this->Particles().activeRange();
-
-			sphereSphereTimer_.start();
-
-			if(this->Particles().allActive())
-			{		
-				particleContactSearch_().broadSearch(ppPairs, activeRange, force);
-			}
-			else
-			{		
-				particleContactSearch_().broadSearch(ppPairs, activeRange, this->Particles().activePointsMaskD(), force);
-			}
-
-			sphereSphereTimer_.end();
-
-		}
-		else
-			return false;
-		
-		if(wallMapping_)
-		{
-			sphereWallTimer_.start();
-			wallMapping_().broadSearch(pwPairs, particleContactSearch_(), force);
-			sphereWallTimer_.end();
-		}
-		else
-			return false;
-
-		
-		
-		return true;
 	}
 
-
+	real cellExtent()const override
-	bool ppEnterBroadSearch()const override
 	{
-		if(particleContactSearch_)
+		return ppwContactSearch_().cellExtent();
-		{
-			return particleContactSearch_().enterBoadSearch(); 
-		}
-		return false;
 	}
 	
-	bool pwEnterBroadSearch()const override
-	{
-		if(wallMapping_)
-		{
-			return wallMapping_().enterBoadSearch();
-		}
-		return false;
-	}
-	
-
-	bool ppPerformedBroadSearch()const override
-	{
-		if(particleContactSearch_)
-		{
-			return particleContactSearch_().performedSearch();
-		}
-		return false;
-	}
-
-	
-	bool pwPerformedBroadSearch()const override
-	{
-		if(wallMapping_)
-		{
-			return wallMapping_().performedSearch();
-		}
-		return false;
-	}
-
-	/*bool update(const eventMessage& msg) 
-	{
-		if(msg.isSizeChanged() ) 
-		{
-			auto newSize = this->prtcl().size();
-			if(!particleContactSearch_().objectSizeChanged(newSize))
-			{
-				fatalErrorInFunction<<
-				"erro in changing the size for particleContactSearch_ \n";
-				return false;
-			}
-		}
-
-		if(msg.isCapacityChanged() ) 
-		{
-			auto newSize = this->prtcl().capacity();
-			if(!particleContactSearch_().objectSizeChanged(newSize))
-			{
-				fatalErrorInFunction<<
-				"erro in changing the capacity for particleContactSearch_ \n";
-				return false;
-			}
-		}	
-		
-		return true;
-	}*/
-	
-	
 };
 
+template <class searchMethod>
+inline bool ContactSearch<searchMethod>::enterBroadSearchBoundary(const timeInfo &ti, bool force) const
+{
+	return performSearch(ti.iter(),force) || csBoundaries_.boundariesUpdated();
 }
 
+}
 
 #endif //__ContactSearch_hpp__

src/Interaction/contactSearch/ContactSearch/ContactSearchs.cpp

@@ -20,11 +20,11 @@ Licence:
 
 #include "ContactSearch.hpp"
 
-#include "cellMapping.hpp"
+//#include "cellMapping.hpp"
 #include "NBS.hpp"
-#include "multiGridNBS.hpp"
+//#include "multiGridNBS.hpp"
-#include "multiGridMapping.hpp"
+//#include "multiGridMapping.hpp"
 
 
-template class pFlow::ContactSearch<pFlow::NBS, pFlow::cellMapping>;
+template class pFlow::ContactSearch<pFlow::NBS>;
-template class pFlow::ContactSearch<pFlow::multiGridNBS, pFlow::multiGridMapping>;
+//template class pFlow::ContactSearch<pFlow::multiGridNBS, pFlow::multiGridMapping>;

src/Interaction/contactSearch/boundaries/boundaryContactSearch/boundaryContactSearch.cpp

@@ -0,0 +1,77 @@
+/*------------------------------- phasicFlow ---------------------------------
+      O        C enter of
+     O O       E ngineering and
+    O   O      M ultiscale modeling of
+   OOOOOOO     F luid flow
+------------------------------------------------------------------------------
+  Copyright (C): www.cemf.ir
+  email: hamid.r.norouzi AT gmail.com
+------------------------------------------------------------------------------
+Licence:
+  This file is part of phasicFlow code. It is a free software for simulating
+  granular and multiphase flows. You can redistribute it and/or modify it under
+  the terms of GNU General Public License v3 or any other later versions.
+
+  phasicFlow is distributed to help others in their research in the field of
+  granular and multiphase flows, but WITHOUT ANY WARRANTY; without even the
+  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+-----------------------------------------------------------------------------*/
+
+#include "boundaryContactSearch.hpp"
+#include "contactSearch.hpp"
+
+pFlow::boundaryContactSearch::boundaryContactSearch(
+    const dictionary &dict,
+    const boundaryBase &boundary,
+    const contactSearch &cSearch)
+    : generalBoundary(
+          boundary,
+          cSearch.pStruct(),
+          "",
+          ""),
+      contactSearch_(cSearch),
+      updateInterval_(dict.getVal<uint32>("updateInterval"))
+{
+}
+
+pFlow::uniquePtr<pFlow::boundaryContactSearch>
+pFlow::boundaryContactSearch::create(
+	const dictionary &dict,
+	const boundaryBase &boundary,
+	const contactSearch &cSearch)
+{
+	
+	word bType = angleBracketsNames2( 
+		"boundaryContactSearch",
+		pFlowProcessors().localRunTypeName(), 
+		boundary.type());
+	word altBType{"boundaryContactSearch<none>"};
+
+	if( boundaryBasevCtorSelector_.search(bType) )
+	{
+		pOutput.space(4)<<"Creating contact search boundary "<< Green_Text(bType)<<
+		" for "<<boundary.name()<<endl;
+		return boundaryBasevCtorSelector_[bType](dict, boundary, cSearch);
+	}
+	else if(boundaryBasevCtorSelector_.search(altBType))
+	{
+		pOutput.space(4)<<"Creating contact search boundary "<< Green_Text(altBType)<<
+		" for "<<boundary.name()<<endl;
+		return boundaryBasevCtorSelector_[altBType](dict, boundary, cSearch);
+	}
+  else
+  {
+    printKeys
+		( 
+			fatalError << "Ctor Selector "<< bType<<
+      " and "<< altBType << " do not exist. \n"
+			<<"Avaiable ones are: \n"
+			,
+			boundaryBasevCtorSelector_
+		);
+		fatalExit;
+  }
+	
+	return nullptr;
+}

src/Interaction/contactSearch/boundaries/boundaryContactSearch/boundaryContactSearch.hpp

@@ -0,0 +1,114 @@
+/*------------------------------- phasicFlow ---------------------------------
+      O        C enter of
+     O O       E ngineering and
+    O   O      M ultiscale modeling of
+   OOOOOOO     F luid flow
+------------------------------------------------------------------------------
+  Copyright (C): www.cemf.ir
+  email: hamid.r.norouzi AT gmail.com
+------------------------------------------------------------------------------
+Licence:
+  This file is part of phasicFlow code. It is a free software for simulating
+  granular and multiphase flows. You can redistribute it and/or modify it under
+  the terms of GNU General Public License v3 or any other later versions.
+
+  phasicFlow is distributed to help others in their research in the field of
+  granular and multiphase flows, but WITHOUT ANY WARRANTY; without even the
+  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+-----------------------------------------------------------------------------*/
+#ifndef __boundaryContactSearch_hpp__
+#define __boundaryContactSearch_hpp__
+
+#include "generalBoundary.hpp"
+#include "contactSearchGlobals.hpp"
+#include "virtualConstructor.hpp"
+
+namespace pFlow
+{
+
+class contactSearch;
+
+class boundaryContactSearch
+    : public generalBoundary
+{
+private:
+    const contactSearch &contactSearch_;
+
+    /// @brief update interval in terms of iteration numebr
+    uint32 updateInterval_;
+
+    /// @brief  last iteration number which contact search has been performed
+    uint32 lastUpdated_ = 0;
+
+    /// @brief performed search?
+    bool performedSearch_ = false;
+
+public:
+    // type info
+    TypeInfo("boundaryContactSearch<none>");
+
+    boundaryContactSearch(
+        const dictionary &dict,
+        const boundaryBase &boundary,
+        const contactSearch &cSearch);
+
+    create_vCtor(
+        boundaryContactSearch,
+        boundaryBase,
+        (
+            const dictionary &dict,
+            const boundaryBase &boundary,
+            const contactSearch &cSearch),
+        (dict, boundary, cSearch));
+
+    add_vCtor(
+        boundaryContactSearch,
+        boundaryContactSearch,
+        boundaryBase);
+
+    const contactSearch &cSearch() const
+    {
+        return contactSearch_;
+    }
+
+    bool hearChanges(
+        const timeInfo& ti,
+        const message &msg,
+        const anyList &varList) override
+    {
+
+        if (msg.equivalentTo(message::BNDR_RESET))
+        {
+            // do nothing
+            return true;
+        }
+        fatalErrorInFunction;
+        return false;
+    }
+
+    virtual bool broadSearch(
+        uint32 iter,
+        real t,
+        real dt,
+        csPairContainerType &ppPairs,
+        csPairContainerType &pwPairs,
+        bool force = false)
+    {
+        return true;
+    }
+
+    bool isActive()const override
+    {
+        return false;
+    }
+
+    static uniquePtr<boundaryContactSearch> create(
+        const dictionary &dict,
+        const boundaryBase &boundary,
+        const contactSearch &cSearch);
+};
+
+}
+
+#endif //__boundaryContactSearch_hpp__

src/Interaction/contactSearch/boundaries/boundaryContactSearchList.cpp

@@ -0,0 +1,52 @@
+/*------------------------------- phasicFlow ---------------------------------
+      O        C enter of
+     O O       E ngineering and
+    O   O      M ultiscale modeling of
+   OOOOOOO     F luid flow
+------------------------------------------------------------------------------
+  Copyright (C): www.cemf.ir
+  email: hamid.r.norouzi AT gmail.com
+------------------------------------------------------------------------------
+Licence:
+  This file is part of phasicFlow code. It is a free software for simulating
+  granular and multiphase flows. You can redistribute it and/or modify it under
+  the terms of GNU General Public License v3 or any other later versions.
+
+  phasicFlow is distributed to help others in their research in the field of
+  granular and multiphase flows, but WITHOUT ANY WARRANTY; without even the
+  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+-----------------------------------------------------------------------------*/
+
+#include "boundaryContactSearchList.hpp"
+#include "boundaryList.hpp"
+
+void pFlow::boundaryContactSearchList::setList(
+    const dictionary &dict, 
+    const contactSearch &cSearch)
+{
+    ForAllBoundariesPtr(i, this)
+    {
+        this->set
+        (
+            i, 
+            boundaryContactSearch::create(dict, boundaries_[i], cSearch)
+        );
+    }
+}
+
+pFlow::boundaryContactSearchList::boundaryContactSearchList(
+    const dictionary &dict,
+    const boundaryList& bndrs,
+    const contactSearch &cSearch)
+    :
+    boundaryListPtr(), 
+    boundaries_(bndrs)
+{
+    setList(dict, cSearch);
+}
+
+bool pFlow::boundaryContactSearchList::boundariesUpdated() const
+{
+    return boundaries_.boundariesUpdated();
+}

src/Interaction/contactSearch/boundaries/boundaryContactSearchList.hpp

@@ -0,0 +1,63 @@
+/*------------------------------- phasicFlow ---------------------------------
+      O        C enter of
+     O O       E ngineering and
+    O   O      M ultiscale modeling of
+   OOOOOOO     F luid flow
+------------------------------------------------------------------------------
+  Copyright (C): www.cemf.ir
+  email: hamid.r.norouzi AT gmail.com
+------------------------------------------------------------------------------
+Licence:
+  This file is part of phasicFlow code. It is a free software for simulating
+  granular and multiphase flows. You can redistribute it and/or modify it under
+  the terms of GNU General Public License v3 or any other later versions.
+
+  phasicFlow is distributed to help others in their research in the field of
+  granular and multiphase flows, but WITHOUT ANY WARRANTY; without even the
+  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+-----------------------------------------------------------------------------*/
+
+#include "boundaryListPtr.hpp"
+#include "boundaryContactSearch.hpp"
+
+namespace pFlow
+{
+
+class boundaryList;
+class contactSearch;
+
+class boundaryContactSearchList
+:
+    public boundaryListPtr<boundaryContactSearch>
+{
+private:
+
+    const boundaryList&         boundaries_;
+
+    void setList(
+        const dictionary& dict,
+        const contactSearch& cSearch);
+public:
+
+    TypeInfoNV("boundaryContactSearchList");
+
+    boundaryContactSearchList(
+        const dictionary& dict,
+        const boundaryList& bndrs,
+        const contactSearch& cSearch);
+    
+    ~boundaryContactSearchList()=default;
+
+    inline
+    const boundaryList& boundaries()const
+    {
+        return boundaries_;
+    } 
+
+    bool boundariesUpdated()const;
+    
+};
+
+
+}

src/Interaction/contactSearch/boundaries/periodicBoundaryContactSearch/periodicBoundaryContactSearch.cpp

@@ -0,0 +1,131 @@
+/*------------------------------- phasicFlow ---------------------------------
+      O        C enter of
+     O O       E ngineering and
+    O   O      M ultiscale modeling of
+   OOOOOOO     F luid flow
+------------------------------------------------------------------------------
+  Copyright (C): www.cemf.ir
+  email: hamid.r.norouzi AT gmail.com
+------------------------------------------------------------------------------
+Licence:
+  This file is part of phasicFlow code. It is a free software for simulating
+  granular and multiphase flows. You can redistribute it and/or modify it under
+  the terms of GNU General Public License v3 or any other later versions.
+
+  phasicFlow is distributed to help others in their research in the field of
+  granular and multiphase flows, but WITHOUT ANY WARRANTY; without even the
+  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+-----------------------------------------------------------------------------*/
+
+#include "periodicBoundaryContactSearch.hpp"
+#include "contactSearch.hpp"
+#include "particles.hpp"
+#include "pointStructure.hpp"
+#include "geometry.hpp"
+
+
+void pFlow::periodicBoundaryContactSearch::setSearchBox()
+{
+    
+    auto db = pStruct().thisDomain().domainBox();
+    auto n1 = boundary().mirrorBoundary().boundaryPlane().normal();
+    auto l1 = boundary().mirrorBoundary().neighborLength();
+    auto n2 = boundary().boundaryPlane().normal();
+    auto l2 = boundary().neighborLength();
+
+    realx3 minP = db.minPoint() + (db.maxPoint()-db.minPoint())* n1+(n2*l2);
+    realx3 maxP = db.maxPoint() + (n1*l1);
+
+    searchBox_={minP, maxP};
+}
+
+pFlow::periodicBoundaryContactSearch::periodicBoundaryContactSearch(
+    const dictionary &dict,
+    const boundaryBase &boundary,
+    const contactSearch &cSearch)
+: 
+    boundaryContactSearch(dict, boundary, cSearch),
+    transferVec_(boundary.mirrorBoundary().displacementVectroToMirror()),
+    thisIndex_(thisBoundaryIndex()),
+    mirrorIndex_(mirrorBoundaryindex()),
+    diameter_(cSearch.Particles().boundingSphere())
+{
+    
+    if(thisIndex_%2==1)
+    {
+        masterSearch_ = true;
+        
+        setSearchBox();
+        
+        real minD;
+        real maxD;
+        cSearch.Particles().boundingSphereMinMax(minD, maxD);
+        
+        ppContactSearch_ = makeUnique<ppwBndryContactSearch>(
+            searchBox_,
+            maxD);
+
+        const auto& geom = cSearch.Geometry();
+
+        pwContactSearch_ = makeUnique<wallBoundaryContactSearch>(
+            0.5,
+            geom.numPoints(),
+            geom.size(),
+            geom.points().deviceViewAll(),
+            geom.vertices().deviceViewAll(),
+            geom.normals().deviceViewAll());
+    }
+    else
+    {
+        masterSearch_ = false;
+        searchBox_={{0,0,0},{0,0,0}};
+    }
+}
+
+bool pFlow::periodicBoundaryContactSearch::broadSearch
+(
+    uint32 iter, 
+    real t, 
+    real dt, 
+    csPairContainerType &ppPairs, 
+    csPairContainerType &pwPairs, 
+    bool force
+)
+{
+    if(masterSearch_)
+    {
+        
+        auto thisP = boundary().thisPoints();
+        auto thisDiams = diameter_.BoundaryField(thisIndex_).thisField();
+        auto mirrorP = mirrorBoundary().thisPoints();
+        auto mirrorDiams = diameter_.BoundaryField(mirrorIndex_).thisField();
+
+        ppContactSearch_().broadSearchPP(
+            ppPairs, 
+            thisP, 
+            thisDiams,
+            mirrorP,
+            mirrorDiams,
+            transferVec_);
+        
+        /*pwContactSearch_().broadSearch(
+            pwPairs, 
+            ppContactSearch_().searchCells(),
+            thisP,
+            thisDiams,
+            mirrorP,
+            mirrorDiams,
+            transferVec_,
+            ppContactSearch_().sizeRatio());*/
+
+            //output<<t<<"  boundary pp size "<< ppPairs.size()<<endl;
+            //output<<t<<"  boundary pw size "<< pwPairs.size()<<endl;
+        
+        return true;
+
+    }else
+    {
+        return true;
+    }
+}

src/Interaction/contactSearch/boundaries/periodicBoundaryContactSearch/periodicBoundaryContactSearch.hpp

@@ -0,0 +1,86 @@
+/*------------------------------- phasicFlow ---------------------------------
+	  O        C enter of
+	 O O       E ngineering and
+	O   O      M ultiscale modeling of
+   OOOOOOO     F luid flow
+------------------------------------------------------------------------------
+  Copyright (C): www.cemf.ir
+  email: hamid.r.norouzi AT gmail.com
+------------------------------------------------------------------------------
+Licence:
+  This file is part of phasicFlow code. It is a free software for simulating
+  granular and multiphase flows. You can redistribute it and/or modify it under
+  the terms of GNU General Public License v3 or any other later versions.
+
+  phasicFlow is distributed to help others in their research in the field of
+  granular and multiphase flows, but WITHOUT ANY WARRANTY; without even the
+  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+-----------------------------------------------------------------------------*/
+#ifndef __periodicBoundaryContactSearch_hpp__
+#define __periodicBoundaryContactSearch_hpp__
+
+#include "boundaryContactSearch.hpp"
+#include "box.hpp"
+#include "ppwBndryContactSearch.hpp"
+#include "pointFields.hpp"
+#include "wallBoundaryContactSearch.hpp"
+
+namespace pFlow
+{
+
+
+class periodicBoundaryContactSearch
+	: public boundaryContactSearch
+{
+private:
+	box searchBox_;
+
+	realx3 transferVec_;
+
+	uint32 thisIndex_;
+
+	uint32 mirrorIndex_;
+
+	uniquePtr<ppwBndryContactSearch> 	ppContactSearch_ = nullptr;
+
+	uniquePtr<wallBoundaryContactSearch> pwContactSearch_ = nullptr;
+
+	const realPointField_D 				&diameter_;
+
+	bool masterSearch_ = false;
+
+	void setSearchBox();
+
+public:
+	TypeInfo("boundaryContactSearch<regular,periodic>")
+
+		periodicBoundaryContactSearch(
+			const dictionary &dict,
+			const boundaryBase &boundary,
+			const contactSearch &cSearch);
+
+	~periodicBoundaryContactSearch() override = default;
+
+	add_vCtor(
+		boundaryContactSearch,
+		periodicBoundaryContactSearch,
+		boundaryBase);
+
+	bool broadSearch(
+		uint32 iter,
+		real t,
+		real dt,
+		csPairContainerType &ppPairs,
+		csPairContainerType &pwPairs,
+		bool force = false) override;
+	
+	bool isActive()const override
+	{
+		return true;
+	}
+};
+
+}
+
+#endif //__periodicBoundaryContactSearch_hpp__

src/Interaction/contactSearch/boundaries/periodicBoundaryContactSearch/ppwBndryContactSearch.cpp

@@ -0,0 +1,109 @@
+
+#include "ppwBndryContactSearch.hpp"
+#include "ppwBndryContactSearchKernels.hpp"
+#include "phasicFlowKokkos.hpp"
+#include "streams.hpp"
+
+void pFlow::ppwBndryContactSearch::checkAllocateNext(uint32 n)
+{
+	if( nextCapacity_ < n)
+	{
+		nextCapacity_ = n;	
+		reallocNoInit(next_, n);
+	}
+}
+
+void pFlow::ppwBndryContactSearch::nullifyHead()
+{
+	fill(head_, static_cast<uint32>(-1));
+}
+
+void pFlow::ppwBndryContactSearch::nullifyNext(uint32 n)
+{
+	fill(next_, 0u, n, static_cast<uint32>(-1));
+}
+
+void pFlow::ppwBndryContactSearch::buildList(
+	const deviceScatteredFieldAccess<realx3> &points)
+{
+	if(points.empty())return;
+	uint32 n = points.size();
+	checkAllocateNext(n);
+	nullifyNext(n);
+	nullifyHead();
+	
+	pFlow::pweBndryContactSearchKernels::buildNextHead(
+		points,
+		searchCells_,
+		head_,
+		next_
+	);
+}
+
+pFlow::ppwBndryContactSearch::ppwBndryContactSearch
+(
+    const box &domain,
+    real cellSize,
+	real sizeRatio
+)
+:
+	searchCells_(domain, cellSize),
+	head_("periodic:head",searchCells_.nx(), searchCells_.ny(), searchCells_.nz()),
+	sizeRatio_(sizeRatio)
+{
+
+}
+
+bool pFlow::ppwBndryContactSearch::broadSearchPP
+(
+	csPairContainerType &ppPairs, 
+	const deviceScatteredFieldAccess<realx3> &points, 
+	const deviceScatteredFieldAccess<real>& diams, 
+	const deviceScatteredFieldAccess<realx3> &mirrorPoints, 
+	const deviceScatteredFieldAccess<real>& mirrorDiams, 
+	const realx3& transferVec
+)
+{
+	
+	buildList(points);
+
+	uint32 nNotInserted = 1;
+
+	// loop until the container size fits the numebr of contact pairs
+	while (nNotInserted > 0)
+	{
+
+		nNotInserted = pFlow::pweBndryContactSearchKernels::broadSearchPP
+		(
+			ppPairs,
+			points,
+			diams,
+			mirrorPoints,
+			mirrorDiams,
+			transferVec,
+			head_,
+			next_,
+			searchCells_,
+			sizeRatio_
+		);
+		
+	
+		if(nNotInserted)
+		{
+			// - resize the container
+			//   note that getFull now shows the number of failed insertions.
+			uint32 len = max(nNotInserted,100u) ;
+			
+			auto oldCap = ppPairs.capacity();
+			
+			ppPairs.increaseCapacityBy(len);
+
+			INFORMATION<< "Particle-particle contact pair container capacity increased from "<<
+			oldCap << " to "<<ppPairs.capacity()<<" in peiodicBoundaryContactSearch."<<END_INFO;
+			
+		}
+
+	}	
+	
+    return true;
+}

src/Interaction/contactSearch/boundaries/periodicBoundaryContactSearch/ppwBndryContactSearch.hpp

@@ -0,0 +1,86 @@
+/*------------------------------- phasicFlow ---------------------------------
+	  O        C enter of
+	 O O       E ngineering and
+	O   O      M ultiscale modeling of
+   OOOOOOO     F luid flow
+------------------------------------------------------------------------------
+  Copyright (C): www.cemf.ir
+  email: hamid.r.norouzi AT gmail.com
+------------------------------------------------------------------------------
+Licence:
+  This file is part of phasicFlow code. It is a free software for simulating
+  granular and multiphase flows. You can redistribute it and/or modify it under
+  the terms of GNU General Public License v3 or any other later versions.
+
+  phasicFlow is distributed to help others in their research in the field of
+  granular and multiphase flows, but WITHOUT ANY WARRANTY; without even the
+  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+-----------------------------------------------------------------------------*/
+
+#ifndef __ppwBndryContactSearch_hpp__
+#define __ppwBndryContactSearch_hpp__
+
+#include "contactSearchGlobals.hpp"
+#include "scatteredFieldAccess.hpp"
+#include "cells.hpp"
+
+namespace pFlow
+{
+
+class ppwBndryContactSearch
+{
+public:
+	using HeadType = deviceViewType3D<uint32>;
+
+	using NextType = deviceViewType1D<uint32>;
+
+private:
+
+	cells    searchCells_;
+
+	HeadType head_{ "periodic::head", 1, 1, 1 };
+
+	NextType next_{ "periodic::next", 1 };
+
+	real     sizeRatio_ = 1.0;
+
+	uint32   nextCapacity_ = 0;
+
+	void checkAllocateNext(uint32 n);
+
+	void nullifyHead();
+
+	void nullifyNext(uint32 n);
+
+	void buildList(
+		const deviceScatteredFieldAccess<realx3> &points);
+
+public:
+	ppwBndryContactSearch(
+		const box &domain,
+		real cellSize,
+		real sizeRatio = 1.0);
+
+	bool broadSearchPP(
+		csPairContainerType &ppPairs,
+		const deviceScatteredFieldAccess<realx3> &points,
+		const deviceScatteredFieldAccess<real> &diams,
+		const deviceScatteredFieldAccess<realx3> &mirrorPoints,
+		const deviceScatteredFieldAccess<real> &mirrorDiams,
+		const realx3 &transferVec);
+
+	const auto& searchCells()const
+	{
+		return searchCells_;
+	}
+
+	real sizeRatio()const
+	{
+		return sizeRatio_;
+	}
+};
+
+}
+
+#endif //__ppwBndryContactSearch_hpp__

src/Interaction/contactSearch/boundaries/periodicBoundaryContactSearch/ppwBndryContactSearchKernels.cpp

@@ -0,0 +1,105 @@
+#include "ppwBndryContactSearchKernels.hpp"
+
+INLINE_FUNCTION_HD
+bool sphereSphereCheckB(const pFlow::realx3& p1, const pFlow::realx3 p2, pFlow::real d1, pFlow::real d2)
+{
+	return pFlow::length(p2-p1) < 0.5*(d2+d1);
+}
+
+void pFlow::pweBndryContactSearchKernels::buildNextHead
+(
+    const deviceScatteredFieldAccess<realx3> &points,
+    const cells              &searchCells,
+    deviceViewType3D<uint32> &head, 
+    deviceViewType1D<uint32> &next 
+)
+{
+    if(points.empty())return;
+    
+    uint32 n= points.size();
+
+    Kokkos::parallel_for(
+		"pFlow::ppwBndryContactSearch::buildList",
+		deviceRPolicyStatic(0,n),
+		LAMBDA_HD(uint32 i)
+		{
+			int32x3 ind;
+			if( searchCells.pointIndexInDomain(points[i], ind) )
+			{
+				// discards points out of searchCell
+				uint32 old = Kokkos::atomic_exchange(&head(ind.x(), ind.y(), ind.z()), i);
+				next[i] = old;
+			}
+		}
+	);
+	Kokkos::fence();
+}
+
+pFlow::uint32 pFlow::pweBndryContactSearchKernels::broadSearchPP
+(
+    csPairContainerType &ppPairs, 
+    const deviceScatteredFieldAccess<realx3> &points, 
+    const deviceScatteredFieldAccess<real> &diams, 
+    const deviceScatteredFieldAccess<realx3> &mirrorPoints, 
+    const deviceScatteredFieldAccess<real> &mirrorDiams, 
+    const realx3 &transferVec, 
+    const deviceViewType3D<uint32> &head, 
+    const deviceViewType1D<uint32> &next, 
+    const cells &searchCells,
+    const real sizeRatio
+)
+{
+    
+    if(points.empty()) return 0;
+	if(mirrorPoints.empty())return 0;
+
+	auto nMirror = mirrorPoints.size();
+    
+    uint32 getFull = 0;
+
+    Kokkos::parallel_reduce(
+		"pFlow::pweBndryContactSearchKernels::broadSearchPP",
+		deviceRPolicyStatic(0, nMirror),
+		LAMBDA_HD(const uint32 mrrI, uint32 &getFullUpdate)
+		{
+			realx3 p_m = mirrorPoints(mrrI) + transferVec;
+			
+			int32x3 ind_m;
+			if( !searchCells.pointIndexInDomain(p_m, ind_m))return;
+			
+			real   d_m = sizeRatio*mirrorDiams[mrrI];
+			
+			for(int ii=-1; ii<2; ii++)
+			{
+			for(int jj=-1; jj<2; jj++)
+			{
+			for(int kk =-1; kk<2; kk++)
+			{
+				auto ind = ind_m + int32x3{ii,jj,kk};
+				
+				if(!searchCells.inCellRange(ind))continue;
+
+				uint32 thisI = head(ind.x(),ind.y(),ind.z());
+				while (thisI!=static_cast<uint32>(-1))
+				{				
+					
+					auto d_n = sizeRatio*diams[thisI];
+					
+                    // first item is for this boundary and second itme, for mirror 
+					if(sphereSphereCheckB(p_m, points[thisI], d_m, d_n)&&
+                       ppPairs.insert(thisI,mrrI) == static_cast<uint32>(-1))
+					{
+						getFullUpdate++;	
+					}
+
+					thisI = next(thisI);
+				}
+			}
+			}
+			}
+		},
+        getFull
+	);
+
+    return getFull;
+}

src/Interaction/contactSearch/boundaries/periodicBoundaryContactSearch/ppwBndryContactSearchKernels.hpp

@@ -0,0 +1,31 @@
+
+#include "contactSearchGlobals.hpp"
+#include "cells.hpp"
+#include "contactSearchFunctions.hpp"
+#include "scatteredFieldAccess.hpp"
+
+namespace pFlow::pweBndryContactSearchKernels
+{
+
+void buildNextHead(
+    const deviceScatteredFieldAccess<realx3> &points,
+    const cells              &searchCells,
+    deviceViewType3D<uint32> &head, 
+    deviceViewType1D<uint32> &next );
+
+
+uint32 broadSearchPP
+(
+	csPairContainerType 						&ppPairs,
+	const deviceScatteredFieldAccess<realx3> 	&points, 
+	const deviceScatteredFieldAccess<real> 		&diams, 
+	const deviceScatteredFieldAccess<realx3>	&mirrorPoints, 
+	const deviceScatteredFieldAccess<real> 		&mirrorDiams, 
+	const realx3 								&transferVec,
+    const deviceViewType3D<uint32>				&head,
+    const deviceViewType1D<uint32>				&next,
+    const cells									&searchCells,
+	real sizeRatio
+);
+
+}

src/Interaction/contactSearch/boundaries/periodicBoundaryContactSearch/wallBoundaryContactSearch.cpp

@@ -0,0 +1,144 @@
+#include "wallBoundaryContactSearch.hpp"
+#include "streams.hpp"
+
+pFlow::wallBoundaryContactSearch::wallBoundaryContactSearch
+(
+    real cellExtent, 
+    uint32 numPoints, 
+    uint32 numElements, 
+    const ViewType1D<realx3, memory_space> &points, 
+    const ViewType1D<uint32x3, memory_space> &vertices, 
+    const ViewType1D<realx3, memory_space> &normals
+)
+:
+    cellExtent_( max(cellExtent, half ) ),
+    numElements_(numElements),
+    numPoints_(numPoints),
+    vertices_(vertices),
+    points_(points),
+	normals_(normals)
+{
+    allocateArrays();
+}
+
+bool pFlow::wallBoundaryContactSearch::build(const cells &searchBox, const realx3& transferVec)
+{
+    Kokkos::parallel_for(
+		"pFlow::cellsWallLevel0::build",
+		deviceRPolicyStatic(0,numElements_),
+		CLASS_LAMBDA_HD(uint32 i)
+		{
+			auto v = vertices_[i];
+			auto p1 = points_[v.x()]+transferVec;
+			auto p2 = points_[v.y()]+transferVec;
+			auto p3 = points_[v.z()]+transferVec;
+			
+			realx3 minP;
+			realx3 maxP;
+
+			searchBox.extendBox(p1, p2, p3, cellExtent_, minP, maxP);
+			elementBox_[i] = iBoxType(searchBox.pointIndex(minP), searchBox.pointIndex(maxP));
+            auto d = elementBox_[i].maxPoint()-elementBox_[i].minPoint();
+            validBox_[i] = (d.x()*d.y()*d.z())==0? 0:1; 
+		});
+	Kokkos::fence();
+
+	return true;
+}
+
+bool pFlow::wallBoundaryContactSearch::broadSearch
+(
+    csPairContainerType &pairs, 
+    const cells &searchCells, 
+    const deviceScatteredFieldAccess<realx3> &thisPoints, 
+    const deviceScatteredFieldAccess<real> &thisDiams, 
+    const deviceScatteredFieldAccess<realx3> &mirrorPoints, 
+    const deviceScatteredFieldAccess<real> &mirroDiams, 
+    const realx3 &transferVec, 
+    real sizeRatio
+)
+{
+    uint32 nNotInserted = 1;
+
+    while (nNotInserted>0u)
+    {
+        build(searchCells,{0,0,0});
+        nNotInserted = findPairsElementRangeCount(
+            pairs,
+            searchCells,
+            thisPoints,
+            thisDiams,
+            {0,0,0},
+            0
+        );
+
+        build(searchCells, transferVec);
+        nNotInserted += findPairsElementRangeCount(
+            pairs,
+            searchCells,
+            mirrorPoints,
+            mirroDiams,
+            transferVec,
+            BASE_MIRROR_WALL_INDEX
+        );
+
+        if(nNotInserted>0u)
+        {
+            //   note that getFull now shows the number of failed insertions.
+			uint32 incCap = max(nNotInserted,50u) ;
+			
+			auto oldCap = pairs.capacity();
+			
+			pairs.increaseCapacityBy(incCap);
+
+			INFORMATION<< "The contact pair container capacity increased from "<<
+			oldCap << " to "<<pairs.capacity()<<" in wallBoundaryContactSearch."<<END_INFO;
+        }
+    }
+    return true;
+}
+
+pFlow::uint32 pFlow::wallBoundaryContactSearch::findPairsElementRangeCount
+(
+    csPairContainerType &pairs, 
+    const cells &searchCells, 
+    const deviceScatteredFieldAccess<realx3> &pPoints, 
+    const deviceScatteredFieldAccess<real> &pDiams, 
+    const realx3 &transferVec, 
+    uint  baseTriIndex
+)
+{
+    
+    if(pPoints.empty())return 0u;
+
+    uint32 nNotInserted = 0;
+    uint32 nThis = pPoints.size();
+    const auto& numElements = numElements_;
+    const auto& elementBox = elementBox_;
+    const auto& validBox = validBox_;
+
+    Kokkos::parallel_reduce(
+        "pFlow::wallBoundaryContactSearch::findPairsElementRangeCount",
+        deviceRPolicyDynamic(0,nThis),
+        LAMBDA_HD(uint32 i, uint32 &notInsertedUpdate)
+        {
+            auto p = pPoints[i]+transferVec;
+            int32x3 ind;
+            if( searchCells.pointIndexInDomain(p, ind) )
+            {
+                for(uint32 nTri=0; nTri<numElements; nTri++)
+                {
+                    if( validBox[nTri]== 0)continue;
+                    if( elementBox[nTri].isInside(ind)&& 
+                        pairs.insert(i,nTri+baseTriIndex) == static_cast<uint32>(-1))
+                    {
+                        notInsertedUpdate++;    
+                    }
+                }
+            }
+        },
+        nNotInserted
+    );
+
+    return nNotInserted;
+}

src/Interaction/contactSearch/boundaries/periodicBoundaryContactSearch/wallBoundaryContactSearch.hpp

@@ -0,0 +1,131 @@
+/*------------------------------- phasicFlow ---------------------------------
+      O        C enter of
+     O O       E ngineering and
+    O   O      M ultiscale modeling of
+   OOOOOOO     F luid flow       
+------------------------------------------------------------------------------
+  Copyright (C): www.cemf.ir
+  email: hamid.r.norouzi AT gmail.com
+------------------------------------------------------------------------------  
+Licence:
+  This file is part of phasicFlow code. It is a free software for simulating 
+  granular and multiphase flows. You can redistribute it and/or modify it under
+  the terms of GNU General Public License v3 or any other later versions. 
+ 
+  phasicFlow is distributed to help others in their research in the field of 
+  granular and multiphase flows, but WITHOUT ANY WARRANTY; without even the
+  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+-----------------------------------------------------------------------------*/
+
+#ifndef __wallBoundaryContactSearch_hpp__
+#define __wallBoundaryContactSearch_hpp__
+
+
+#include "contactSearchGlobals.hpp"
+#include "contactSearchFunctions.hpp"
+#include "scatteredFieldAccess.hpp"
+#include "iBox.hpp"
+#include "cells.hpp"
+
+
+
+namespace pFlow
+{
+
+class wallBoundaryContactSearch
+{
+public:
+
+	using execution_space = csExecutionSpace;
+
+	using memory_space 	= typename execution_space::memory_space;
+
+	using iBoxType 		= iBox<int32>;	
+
+private:
+
+	// - box extent
+	real 			cellExtent_ = 0.5;
+
+	// - number of triangle elements 
+	uint32			numElements_ = 0;
+
+	// - number of points
+	uint32 			numPoints_ = 0;
+
+	// - ref to vectices (borrowed)
+	ViewType1D<uint32x3, memory_space> 	vertices_;
+
+	// - ref to points in the trisurface (borrowed)
+	ViewType1D<realx3, memory_space> 	points_;
+
+	// - ref to normal vectors of triangles (borrowed)
+	ViewType1D<realx3, memory_space> 	normals_;
+
+	// cell range of element/triangle bounding box
+	ViewType1D<iBoxType, memory_space> 	elementBox_;
+
+    ViewType1D<uint8, memory_space>     validBox_;
+	
+	
+	FUNCTION_H
+	void allocateArrays()
+	{
+		reallocNoInit( elementBox_, numElements_);
+        reallocNoInit( validBox_, numElements_);
+	}
+
+public:
+
+	TypeInfoNV("wallBoundaryContactSearch");
+
+	INLINE_FUNCTION_HD
+	wallBoundaryContactSearch()=default;
+
+	FUNCTION_H
+	wallBoundaryContactSearch(
+		real 					cellExtent,
+		uint32 					numPoints,
+		uint32 					numElements,
+		const ViewType1D<realx3,memory_space>& 		points, 
+		const ViewType1D<uint32x3,memory_space>& 	vertices,
+		const ViewType1D<realx3, memory_space>& normals);
+	
+
+
+	INLINE_FUNCTION_HD
+	uint32 numElements()const
+	{
+		return numElements_;
+	}
+
+	
+	bool build(const cells& searchBox, const realx3& transferVec);
+	
+	bool broadSearch(
+		csPairContainerType& pairs, 
+		const cells &searchCells, 
+		const deviceScatteredFieldAccess<realx3>& thisPoints,
+		const deviceScatteredFieldAccess<real>&  thisDiams,
+        const deviceScatteredFieldAccess<realx3>& mirrorPoints,
+		const deviceScatteredFieldAccess<real>&  mirroDiams,
+		const realx3& transferVec,
+		real sizeRatio);
+
+	uint32 findPairsElementRangeCount(
+		csPairContainerType &pairs, 
+        const cells &searchCells, 
+        const deviceScatteredFieldAccess<realx3> &pPoints, 
+        const deviceScatteredFieldAccess<real> &pDiams, 
+        const realx3 &transferVec, 
+        uint  baseTriIndex);
+	
+
+
+}; // wallBoundaryContactSearch
+
+} // pFlow
+
+
+#endif // __wallBoundaryContactSearch_hpp__