mirror of
https://gitlab.kitware.com/vtk/vtk-m
synced 2024-09-08 21:33:55 +00:00
58 lines
1.8 KiB
C++
58 lines
1.8 KiB
C++
//============================================================================
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// Copyright (c) Kitware, Inc.
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// All rights reserved.
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// See LICENSE.txt for details.
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//
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// This software is distributed WITHOUT ANY WARRANTY; without even
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// the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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// PURPOSE. See the above copyright notice for more information.
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//============================================================================
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#ifndef vtk_m_cont_cuda_internal_ScopedCudaStackSize_h
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#define vtk_m_cont_cuda_internal_ScopedCudaStackSize_h
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namespace vtkm
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{
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namespace cont
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{
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namespace cuda
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{
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namespace internal
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{
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/// \brief RAII helper for temporarily changing CUDA stack size in an
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/// exception-safe way.
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struct ScopedCudaStackSize
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{
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ScopedCudaStackSize(std::size_t newStackSize)
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{
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cudaDeviceGetLimit(&this->OldStackSize, cudaLimitStackSize);
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VTKM_LOG_S(vtkm::cont::LogLevel::Info,
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"Temporarily changing Cuda stack size from "
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<< vtkm::cont::GetHumanReadableSize(static_cast<vtkm::UInt64>(this->OldStackSize))
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<< " to "
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<< vtkm::cont::GetHumanReadableSize(static_cast<vtkm::UInt64>(newStackSize)));
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cudaDeviceSetLimit(cudaLimitStackSize, newStackSize);
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}
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~ScopedCudaStackSize()
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{
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VTKM_LOG_S(vtkm::cont::LogLevel::Info,
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"Restoring Cuda stack size to " << vtkm::cont::GetHumanReadableSize(
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static_cast<vtkm::UInt64>(this->OldStackSize)));
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cudaDeviceSetLimit(cudaLimitStackSize, this->OldStackSize);
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}
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// Disable copy
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ScopedCudaStackSize(const ScopedCudaStackSize&) = delete;
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ScopedCudaStackSize& operator=(const ScopedCudaStackSize&) = delete;
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private:
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std::size_t OldStackSize;
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};
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}
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}
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}
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} // vtkm::cont::cuda::internal
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#endif // vtk_m_cont_cuda_internal_ScopedCudaStackSize_h
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