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AB3, AB4 added, and AB2 modified

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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
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166
src/Integration/AdamsBashforth3/AdamsBashforth3.cpp
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@ -20,62 +20,168 @@ Licence:
#include "AdamsBashforth3.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)
{
auto d_dy = dy.deviceView();
auto d_y = y.deviceView();
auto d_dy1= dy1.deviceView();
auto d_dy2= dy2.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>(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;
}
bool intScattered
(
real dt,
realx3Field_D& y,
realx3PointField_D& dy,
realx3PointField_D& dy1,
realx3PointField_D& dy2
)
{
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(
"AdamsBashforth2::correct",
rpIntegration (activeRng.start(), activeRng.end()),
LAMBDA_HD(uint32 i){
if( activeP(i))
{
d_y[i] += 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,
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,AB3History>>(
objectFile(
groupNames(baseName,"AB3History"),
"",
objectFile::READ_IF_PRESENT,
objectFile::WRITE_ALWAYS),
pStruct,
AB3History({zero3,zero3})))
AdamsBashforth2(baseName, pStruct, method, initialValField),
dy2_
(
objectFile
(
groupNames(baseName,"dy2"),
pStruct.time().integrationFolder(),
objectFile::READ_IF_PRESENT,
objectFile::WRITE_ALWAYS
),
pStruct,
zero3,
zero3
)
{
}
bool pFlow::AdamsBashforth3::predict
(
real UNUSED(dt),
realx3Vector_D& UNUSED(y),
realx3Vector_D& UNUSED(dy)
)
void pFlow::AdamsBashforth3::updateBoundariesSlaveToMasterIfRequested()
{
return true;
AdamsBashforth2::updateBoundariesSlaveToMasterIfRequested();
dy2_.updateBoundariesSlaveToMasterIfRequested();
}
bool pFlow::AdamsBashforth3::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());
}
else
{
return intRange(dt, y, dy, this->pStruct().activePointsMaskD());
success = intScattered(dt, y.field(), dy, dy1(), dy2());
}
return true;
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::setInitialVals(
const int32IndexContainer& newIndices,
const realx3Vector& y)
@ -83,7 +189,7 @@ bool pFlow::AdamsBashforth3::setInitialVals(
return true;
}
bool pFlow::AdamsBashforth3::intAll(
/*bool pFlow::AdamsBashforth3::intAll(
real dt,
realx3Vector_D& y,
realx3Vector_D& dy,
@ -106,4 +212,4 @@ bool pFlow::AdamsBashforth3::intAll(
Kokkos::fence();
return true;
}
}*/