mirror of
https://gitlab.kitware.com/vtk/vtk-m
synced 2024-07-31 03:00:57 +00:00
1e27495809
This commit adds the flag VTKm_ENABLE_GPU_MPI which when enable it will use GPU AWARE MPI. - This will only work with GPUs and MPI implementation that supports GPU AWARE MPI calls. - Enabling VTKm_ENABLE_GPU_MPI without MPI/GPU support might results in errors when running VTK-m with DIY/MPI. - Only the following tests can run with this feature if enabled: - UnitTestSerializationDataSet - UnitTestSerializationArrayHandle
95 lines
3.0 KiB
C++
95 lines
3.0 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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#include <vtkm/cont/internal/DeviceAdapterMemoryManagerShared.h>
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#include <cstring>
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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 internal
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{
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vtkm::cont::internal::BufferInfo DeviceAdapterMemoryManagerShared::Allocate(
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vtkm::BufferSizeType size) const
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{
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return vtkm::cont::internal::BufferInfo(vtkm::cont::internal::AllocateOnHost(size),
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this->GetDevice());
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}
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vtkm::cont::internal::BufferInfo DeviceAdapterMemoryManagerShared::CopyHostToDevice(
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const vtkm::cont::internal::BufferInfo& src) const
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{
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VTKM_ASSERT(src.GetDevice() == vtkm::cont::DeviceAdapterTagUndefined{});
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return vtkm::cont::internal::BufferInfo(src, this->GetDevice());
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}
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void DeviceAdapterMemoryManagerShared::CopyHostToDevice(
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const vtkm::cont::internal::BufferInfo& src,
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const vtkm::cont::internal::BufferInfo& dest) const
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{
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VTKM_ASSERT(src.GetDevice() == vtkm::cont::DeviceAdapterTagUndefined{});
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VTKM_ASSERT(dest.GetDevice() == this->GetDevice());
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if (src.GetPointer() != dest.GetPointer())
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{
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this->CopyDeviceToDevice(src, dest);
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}
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}
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vtkm::cont::internal::BufferInfo DeviceAdapterMemoryManagerShared::CopyDeviceToHost(
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const vtkm::cont::internal::BufferInfo& src) const
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{
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VTKM_ASSERT(src.GetDevice() == this->GetDevice());
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return vtkm::cont::internal::BufferInfo(src, vtkm::cont::DeviceAdapterTagUndefined{});
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}
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void DeviceAdapterMemoryManagerShared::CopyDeviceToHost(
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const vtkm::cont::internal::BufferInfo& src,
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const vtkm::cont::internal::BufferInfo& dest) const
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{
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VTKM_ASSERT(src.GetDevice() == this->GetDevice());
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VTKM_ASSERT(dest.GetDevice() == vtkm::cont::DeviceAdapterTagUndefined{});
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if (src.GetPointer() != dest.GetPointer())
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{
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this->CopyDeviceToDevice(src, dest);
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}
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}
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vtkm::cont::internal::BufferInfo DeviceAdapterMemoryManagerShared::CopyDeviceToDevice(
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const vtkm::cont::internal::BufferInfo& src) const
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{
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VTKM_ASSERT(src.GetDevice() == this->GetDevice());
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vtkm::BufferSizeType size = src.GetSize();
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vtkm::cont::internal::BufferInfo dest = this->Allocate(size);
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this->CopyDeviceToDevice(src, dest);
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return dest;
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}
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void DeviceAdapterMemoryManagerShared::CopyDeviceToDevice(
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const vtkm::cont::internal::BufferInfo& src,
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const vtkm::cont::internal::BufferInfo& dest) const
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{
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VTKM_ASSERT(src.GetSize() == dest.GetSize());
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std::memcpy(dest.GetPointer(), src.GetPointer(), static_cast<std::size_t>(src.GetSize()));
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}
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void DeviceAdapterMemoryManagerShared::DeleteRawPointer(void* mem) const
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{
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vtkm::cont::internal::HostDeleter(mem);
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}
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}
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}
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} // namespace vtkm::cont::internal
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