Loading...
Searching...
No Matches
StandardPreconditioners_gpu_mpi.hpp
/*
Copyright 2025 Equinor ASA
This file is part of the Open Porous Media project (OPM).
OPM is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OPM is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with OPM. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef OPM_STANDARDPRECONDITIONERS_GPU_MPI_HEADER
#define OPM_STANDARDPRECONDITIONERS_GPU_MPI_HEADER
#include <dune/istl/bcrsmatrix.hh>
#include <string>
#include <opm/simulators/linalg/PreconditionerFactory.hpp>
#include <opm/simulators/linalg/PropertyTree.hpp>
#include <opm/simulators/linalg/is_gpu_operator.hpp>
#if HAVE_CUDA
#include <opm/simulators/linalg/gpuistl/GpuDILU.hpp>
#include <opm/simulators/linalg/gpuistl/GpuSeqILU0.hpp>
#include <opm/simulators/linalg/gpuistl/GpuJac.hpp>
#include <opm/simulators/linalg/gpuistl/OpmGpuILU0.hpp>
#include <opm/simulators/linalg/gpuistl/GpuBlockPreconditioner.hpp>
#include <opm/simulators/linalg/gpuistl/detail/gpu_preconditioner_utils.hpp>
#endif
namespace Opm {
template <class Operator, class Comm>
struct StandardPreconditioners<Operator, Comm, typename std::enable_if_t<Opm::is_gpu_operator_v<Operator>>>
{
using O = Operator;
using C = Comm;
using F = PreconditionerFactory<O, C>;
using M = typename F::Matrix;
using V = typename F::Vector;
using P = PropertyTree;
using PrecPtr = typename F::PrecPtr;
using field_type = typename V::field_type;
static constexpr int maxblocksize = 6;
static void add()
{
#if HAVE_CUDA
F::addCreator("ilu0", [](const O& op, const P& prm, const std::function<V()>&, std::size_t, const C& comm) {
const double w = prm.get<double>("relaxation", 1.0);
using GpuILU0 = typename gpuistl::GpuSeqILU0<M, V, V>;
auto gpuPrec = std::make_shared<GpuILU0>(op.getmat(), w);
return std::make_shared<gpuistl::GpuBlockPreconditioner<V, V, C>>(gpuPrec, comm);
});
F::addCreator("jac", [](const O& op, const P& prm, const std::function<V()>&, std::size_t, const C& comm) {
const double w = prm.get<double>("relaxation", 1.0);
using GpuJac = typename gpuistl::GpuJac<M, V, V>;
auto gpuPrec = std::make_shared<GpuJac>(op.getmat(), w);
return std::make_shared<gpuistl::GpuBlockPreconditioner<V, V, C>>(gpuPrec, comm);
});
F::addCreator("dilu", [](const O& op, [[maybe_unused]] const P& prm, const std::function<V()>&, std::size_t, const C& comm) -> PrecPtr {
return op.getmat().dispatchOnBlocksize([&](auto blockSizeVal) -> PrecPtr {
constexpr int blockSize = decltype(blockSizeVal)::value;
const auto cpuMatrix = gpuistl::detail::makeCPUMatrix<O, Dune::FieldMatrix<field_type, blockSize, blockSize>>(op);
const bool split_matrix = prm.get<bool>("split_matrix", true);
const bool tune_gpu_kernels = prm.get<bool>("tune_gpu_kernels", true);
const int mixed_precision_scheme = prm.get<int>("mixed_precision_scheme", 0);
const bool reorder = prm.get<bool>("reorder", true);
using CPUMatrixType = std::remove_const_t<std::remove_reference_t<decltype(cpuMatrix)>>;
using GPUDILU = typename gpuistl::GpuDILU<CPUMatrixType, V, V>;
auto gpuPrec = std::make_shared<GPUDILU>(op.getmat(), cpuMatrix, split_matrix, tune_gpu_kernels, mixed_precision_scheme, reorder);
return std::make_shared<gpuistl::GpuBlockPreconditioner<V, V, C>>(gpuPrec, comm);
});
});
F::addCreator("opmilu0", [](const O& op, [[maybe_unused]] const P& prm, const std::function<V()>&, std::size_t, const C& comm) -> PrecPtr {
return op.getmat().dispatchOnBlocksize([&](auto blockSizeVal) -> PrecPtr {
constexpr int blockSize = decltype(blockSizeVal)::value;
const auto cpuMatrix = gpuistl::detail::makeCPUMatrix<O, Dune::FieldMatrix<field_type, blockSize, blockSize>>(op);
const bool split_matrix = prm.get<bool>("split_matrix", true);
const bool tune_gpu_kernels = prm.get<bool>("tune_gpu_kernels", true);
const int mixed_precision_scheme = prm.get<int>("mixed_precision_scheme", 0);
using CPUMatrixType = std::remove_const_t<std::remove_reference_t<decltype(cpuMatrix)>>;
using GPUILU0 = typename gpuistl::OpmGpuILU0<CPUMatrixType, V, V>;
auto gpuPrec = std::make_shared<GPUILU0>(op.getmat(), cpuMatrix, split_matrix, tune_gpu_kernels, mixed_precision_scheme);
return std::make_shared<gpuistl::GpuBlockPreconditioner<V, V, C>>(gpuPrec, comm);
});
});
#endif // HAVE_CUDA
}
};
}// namespace Opm
#endif // OPM_STANDARDPRECONDITIONERS_GPU_MPI_HEADER
Opm::PreconditionerFactory
This is an object factory for creating preconditioners.
Definition PreconditionerFactory.hpp:64
Opm::PreconditionerFactory< O, C >::PrecPtr
std::shared_ptr< Dune::PreconditionerWithUpdate< Vector, Vector > > PrecPtr
Definition PreconditionerFactory.hpp:71
Opm::PreconditionerFactory< O, C >::addCreator
static void addCreator(const std::string &type, Creator creator)
Opm::PreconditionerFactory< O, C >::Matrix
typename O::matrix_type Matrix
Definition PreconditionerFactory.hpp:67
Opm::PropertyTree
Hierarchical collection of key/value pairs.
Definition PropertyTree.hpp:39
Opm::PropertyTree::get
T get(const std::string &key) const
Retrieve property value given hierarchical property key.
Definition PropertyTree.cpp:59
Opm::gpuistl::GpuDILU
DILU preconditioner on the GPU.
Definition GpuDILU.hpp:53
Opm::gpuistl::GpuJac
Jacobi preconditioner on the GPU.
Definition GpuJac.hpp:47
Opm::gpuistl::GpuSeqILU0
Sequential ILU0 preconditioner on the GPU through the CuSparse library.
Definition GpuSeqILU0.hpp:52
Opm::gpuistl::OpmGpuILU0
ILU0 preconditioner on the GPU.
Definition OpmGpuILU0.hpp:51
Opm::gpuistl::detail::makeCPUMatrix
Dune::BCRSMatrix< BlockType > makeCPUMatrix(const Operator &op)
Utility functions for GPU preconditioner creation.
Definition gpu_preconditioner_utils.hpp:47
Opm
This file contains a set of helper functions used by VFPProd / VFPInj.
Definition blackoilbioeffectsmodules.hh:43
Opm::StandardPreconditioners
Definition StandardPreconditioners_mpi.hpp:132