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https://github.com/OPM/opm-simulators.git
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83 lines
2.3 KiB
C++
83 lines
2.3 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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#include <cuda.h>
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#include <cuda_runtime.h>
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#include <algorithm>
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#include <fmt/core.h>
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#include <opm/simulators/linalg/gpuistl/GpuView.hpp>
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#include <opm/simulators/linalg/gpuistl/detail/gpu_safe_call.hpp>
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namespace Opm::gpuistl
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{
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template <class T>
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GpuView<T>::GpuView(std::vector<T>& data)
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: GpuView(data.data(), data.size())
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{
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}
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template <typename T>
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std::vector<T>
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GpuView<T>::asStdVector() const
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{
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std::vector<T> temporary(m_numberOfElements);
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copyToHost(temporary);
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return temporary;
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}
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template <class T>
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void
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GpuView<T>::copyFromHost(const T* dataPointer, size_t numberOfElements)
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{
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if (numberOfElements > size()) {
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OPM_THROW(std::runtime_error,
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fmt::format("Requesting to copy too many elements. View has {} elements, while {} was requested.",
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size(),
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numberOfElements));
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}
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OPM_GPU_SAFE_CALL(cudaMemcpy(data(), dataPointer, numberOfElements * sizeof(T), cudaMemcpyHostToDevice));
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}
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template <class T>
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void
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GpuView<T>::copyToHost(T* dataPointer, size_t numberOfElements) const
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{
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assertSameSize(numberOfElements);
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OPM_GPU_SAFE_CALL(cudaMemcpy(dataPointer, data(), numberOfElements * sizeof(T), cudaMemcpyDeviceToHost));
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}
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template <class T>
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void
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GpuView<T>::copyFromHost(const std::vector<T>& data)
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{
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copyFromHost(data.data(), data.size());
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}
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template <class T>
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void
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GpuView<T>::copyToHost(std::vector<T>& data) const
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{
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copyToHost(data.data(), data.size());
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}
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template class GpuView<double>;
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template class GpuView<float>;
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template class GpuView<int>;
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} // namespace Opm::gpuistl
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