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69 lines
2.1 KiB
C++
69 lines
2.1 KiB
C++
/*
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Copyright 2021 Equinor ASA
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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_OPENCLMATRIX_HEADER_INCLUDED
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#define OPM_OPENCLMATRIX_HEADER_INCLUDED
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#include <vector>
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#include <opm/simulators/linalg/bda/opencl/opencl.hpp>
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namespace Opm
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{
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namespace Accelerator
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{
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template<class Scalar> class Matrix;
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template<class Scalar> class BlockedMatrix;
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/// This struct resembles a csr matrix, only doubles are supported
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/// The matrix data is stored in OpenCL Buffers
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template<class Scalar>
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class OpenclMatrix
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{
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public:
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OpenclMatrix(cl::Context *context, int Nb_, int Mb_, int nnzbs_, unsigned int block_size_)
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: Nb(Nb_),
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Mb(Mb_),
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nnzbs(nnzbs_),
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block_size(block_size_)
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{
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nnzValues = cl::Buffer(*context, CL_MEM_READ_WRITE,
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sizeof(Scalar) * block_size * block_size * nnzbs);
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colIndices = cl::Buffer(*context, CL_MEM_READ_WRITE, sizeof(int) * nnzbs);
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rowPointers = cl::Buffer(*context, CL_MEM_READ_WRITE, sizeof(int) * (Nb + 1));
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}
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void upload(cl::CommandQueue* queue, Scalar* vals, int* cols, int* rows);
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void upload(cl::CommandQueue* queue, Matrix<Scalar>* matrix);
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void upload(cl::CommandQueue* queue, BlockedMatrix<Scalar>* matrix);
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cl::Buffer nnzValues;
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cl::Buffer colIndices;
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cl::Buffer rowPointers;
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int Nb, Mb;
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int nnzbs;
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unsigned int block_size;
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};
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} // namespace Accelerator
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} // namespace Opm
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#endif // OPM_OPENCLMATRIX_HEADER_INCLUDED
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