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https://github.com/OPM/opm-simulators.git
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87 lines
3.2 KiB
C++
87 lines
3.2 KiB
C++
/*
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Copyright 2022-2023 SINTEF AS
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This file is part of the Open Porous Media project (OPM).
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OPM is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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OPM is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with OPM. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef CU_MATRIX_DESCRIPTION_HPP
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#define CU_MATRIX_DESCRIPTION_HPP
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#include <opm/simulators/linalg/gpuistl/detail/CuSparseResource.hpp>
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#include <opm/simulators/linalg/gpuistl/detail/cusparse_safe_call.hpp>
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namespace Opm::gpuistl::detail
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{
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/**
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* GpuSparseMatrixDescription holder. This is internal information needed for most calls to the CuSparse API.
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*/
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using GpuSparseMatrixDescription = CuSparseResource<cusparseMatDescr_t>;
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/**
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* Pointer to GpuSparseMatrixDescription holder. This is internal information needed for most calls to the CuSparse API.
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*/
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using GpuSparseMatrixDescriptionPtr = std::shared_ptr<CuSparseResource<cusparseMatDescr_t>>;
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/**
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* @brief createMatrixDescription creates a default matrix description
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* @return a matrix description to a general sparse matrix with zero based indexing.
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*/
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inline GpuSparseMatrixDescriptionPtr
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createMatrixDescription()
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{
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auto description = std::make_shared<GpuSparseMatrixDescription>();
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// Note: We always want to use zero base indexing.
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OPM_CUSPARSE_SAFE_CALL(cusparseSetMatType(description->get(), CUSPARSE_MATRIX_TYPE_GENERAL));
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OPM_CUSPARSE_SAFE_CALL(cusparseSetMatIndexBase(description->get(), CUSPARSE_INDEX_BASE_ZERO));
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return description;
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}
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/**
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* @brief createLowerDiagonalDescription creates a lower diagonal matrix description
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* @return a lower diagonal matrix description overlapped with options from ::Opm::gpuistl::detail::createMatrixDescription()
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*
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* @note This will assume it has a unit diagonal
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*/
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inline GpuSparseMatrixDescriptionPtr
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createLowerDiagonalDescription()
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{
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auto description = createMatrixDescription();
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OPM_CUSPARSE_SAFE_CALL(cusparseSetMatFillMode(description->get(), CUSPARSE_FILL_MODE_LOWER));
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OPM_CUSPARSE_SAFE_CALL(cusparseSetMatDiagType(description->get(), CUSPARSE_DIAG_TYPE_UNIT));
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return description;
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}
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/**
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* @brief createUpperDiagonalDescription creates an upper diagonal matrix description
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* @return an upper diagonal matrix description overlapped with options from ::Opm::gpuistl::detail::createMatrixDescription()
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*
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* @note This will assume it has a non-unit diagonal.
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*/
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inline GpuSparseMatrixDescriptionPtr
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createUpperDiagonalDescription()
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{
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auto description = createMatrixDescription();
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OPM_CUSPARSE_SAFE_CALL(cusparseSetMatFillMode(description->get(), CUSPARSE_FILL_MODE_UPPER));
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OPM_CUSPARSE_SAFE_CALL(cusparseSetMatDiagType(description->get(), CUSPARSE_DIAG_TYPE_NON_UNIT));
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return description;
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}
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} // namespace Opm::gpuistl::detail
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#endif // CU_MATRIX_DESCRIPTION_HPP
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