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39 lines
1.6 KiB
C++
39 lines
1.6 KiB
C++
/*
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Copyright 2024 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 OPM_JAC_KERNELS_HPP
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#define OPM_JAC_KERNELS_HPP
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#include <cstddef>
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#include <vector>
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namespace Opm::gpuistl::detail::JAC
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{
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/**
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* @brief This function receives a matrix, and the inverse of the matrix containing only its diagonal is stored in d_vec
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* @param mat pointer to GPU memory containing nonzerovalues of the sparse matrix
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* @param rowIndices Pointer to vector on GPU containing row indices compliant wiht bsr format
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* @param colIndices Pointer to vector on GPU containing col indices compliant wiht bsr format
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* @param numberOfRows Integer describing the number of rows in the matrix
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* @param[out] vec Pointer to the vector where the inverse of the diagonal matrix should be stored
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*/
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template <class T, int blocksize>
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void invertDiagonalAndFlatten(T* mat, int* rowIndices, int* colIndices, size_t numberOfRows, T* vec);
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} // namespace Opm::gpuistl::detail::JAC
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#endif
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