xfygogo/phasicFlow
1
0
Fork 0
mirror of https://github.com/PhasicFlow/phasicFlow.git synced 2025-09-16 04:16:04 +00:00
Code Issues Packages Projects Releases Wiki Activity

AB3, AB4 added, and AB2 modified

Browse Source
This commit is contained in:
Hamidreza Norouzi
2025-01-20 14:55:12 +03:30
parent 3d6fa28221
commit c202f9eaae
6 changed files with 386 additions and 227 deletions
Download Patch File Download Diff File Expand all files Collapse all files

171
src/Integration/AdamsBashforth4/AdamsBashforth4.cpp
View File

@ -20,60 +20,171 @@ Licence:
#include "AdamsBashforth4.hpp"
namespace pFlow
{
/// Range policy for integration kernel (alias)
using rpIntegration = Kokkos::RangePolicy<
DefaultExecutionSpace,
Kokkos::Schedule<Kokkos::Static>,
Kokkos::IndexType<uint32>
>;
bool intAllActive(
real dt,
realx3Field_D& y,
realx3PointField_D& dy,
realx3PointField_D& dy1,
realx3PointField_D& dy2,
realx3PointField_D& dy3)
{
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();
Kokkos::parallel_for(
"AdamsBashforth3::correct",
rpIntegration (activeRng.start(), activeRng.end()),
LAMBDA_HD(uint32 i){
d_y[i] += 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;
}
bool intScattered
(
real dt,
realx3Field_D& y,
realx3PointField_D& dy,
realx3PointField_D& dy1,
realx3PointField_D& dy2,
realx3PointField_D& dy3
)
{
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(
"AdamsBashforth2::correct",
rpIntegration (activeRng.start(), activeRng.end()),
LAMBDA_HD(uint32 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_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,
repository& owner,
const pointStructure& pStruct,
const word& method
pointStructure& pStruct,
const word& method,
const realx3Field_D& initialValField
)
:
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})))
AdamsBashforth3(baseName, pStruct, method, initialValField),
dy3_
(
objectFile
(
groupNames(baseName,"dy3"),
pStruct.time().integrationFolder(),
objectFile::READ_IF_PRESENT,
objectFile::WRITE_ALWAYS
),
pStruct,
zero3,
zero3
)
{
}
bool pFlow::AdamsBashforth4::predict
(
real UNUSED(dt),
realx3Vector_D& UNUSED(y),
realx3Vector_D& UNUSED(dy)
)
void pFlow::AdamsBashforth4::updateBoundariesSlaveToMasterIfRequested()
{
return true;
AdamsBashforth3::updateBoundariesSlaveToMasterIfRequested();
dy3_.updateBoundariesSlaveToMasterIfRequested();
}
bool pFlow::AdamsBashforth4::correct
(
real dt,
realx3Vector_D& y,
realx3Vector_D& dy
real dt,
realx3PointField_D& y,
realx3PointField_D& dy
)
{
if(this->pStruct().allActive())
bool success = false;
if(y.isAllActive())
{
return intAll(dt, y, dy, this->pStruct().activeRange());
success = intAllActive(dt, y.field(), dy, dy1(), dy2(), dy3());
}
else
{
return intRange(dt, y, dy, this->pStruct().activePointsMaskD());
success = intScattered(dt, y.field(), dy, dy1(), dy2(), dy3());
}
return true;
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::setInitialVals(
@ -83,7 +194,7 @@ bool pFlow::AdamsBashforth4::setInitialVals(
return true;
}
bool pFlow::AdamsBashforth4::intAll(
/*bool pFlow::AdamsBashforth4::intAll(
real dt,
realx3Vector_D& y,
realx3Vector_D& dy,
@ -112,4 +223,4 @@ bool pFlow::AdamsBashforth4::intAll(
Kokkos::fence();
return true;
}
}*/