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https://gitlab.kitware.com/vtk/vtk-m
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clang-format BinPack settings have been disabled to make sure that the VTK-m style guideline is obeyed.
90 lines
3.1 KiB
C++
90 lines
3.1 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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// 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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// Copyright 2014 Sandia Corporation.
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// Copyright 2014 UT-Battelle, LLC.
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// Copyright 2014 Los Alamos National Security.
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//
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// Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
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// the U.S. Government retains certain rights in this software.
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//
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// Under the terms of Contract DE-AC52-06NA25396 with Los Alamos National
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// Laboratory (LANL), the U.S. Government retains certain rights in
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// this software.
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//============================================================================
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#include <vtkm/cont/tbb/internal/DeviceAdapterAlgorithmTBB.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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void DeviceAdapterAlgorithm<vtkm::cont::DeviceAdapterTagTBB>::ScheduleTask(
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vtkm::exec::tbb::internal::TaskTiling1D& functor,
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vtkm::Id size)
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{
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const vtkm::Id MESSAGE_SIZE = 1024;
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char errorString[MESSAGE_SIZE];
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errorString[0] = '\0';
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vtkm::exec::internal::ErrorMessageBuffer errorMessage(errorString, MESSAGE_SIZE);
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functor.SetErrorMessageBuffer(errorMessage);
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::tbb::blocked_range<vtkm::Id> range(0, size);
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::tbb::parallel_for(
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range, [&](const ::tbb::blocked_range<vtkm::Id>& r) { functor(r.begin(), r.end()); });
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if (errorMessage.IsErrorRaised())
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{
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throw vtkm::cont::ErrorExecution(errorString);
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}
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}
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void DeviceAdapterAlgorithm<vtkm::cont::DeviceAdapterTagTBB>::ScheduleTask(
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vtkm::exec::tbb::internal::TaskTiling3D& functor,
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vtkm::Id3 size)
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{
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static const vtkm::UInt32 TBB_GRAIN_SIZE_3D[3] = { 1, 4, 256 };
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const vtkm::Id MESSAGE_SIZE = 1024;
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char errorString[MESSAGE_SIZE];
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errorString[0] = '\0';
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vtkm::exec::internal::ErrorMessageBuffer errorMessage(errorString, MESSAGE_SIZE);
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functor.SetErrorMessageBuffer(errorMessage);
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//memory is generally setup in a way that iterating the first range
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//in the tightest loop has the best cache coherence.
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::tbb::blocked_range3d<vtkm::Id> range(0,
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size[2],
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TBB_GRAIN_SIZE_3D[0],
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0,
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size[1],
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TBB_GRAIN_SIZE_3D[1],
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0,
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size[0],
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TBB_GRAIN_SIZE_3D[2]);
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::tbb::parallel_for(range, [&](const ::tbb::blocked_range3d<vtkm::Id>& r) {
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for (vtkm::Id k = r.pages().begin(); k != r.pages().end(); ++k)
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{
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for (vtkm::Id j = r.rows().begin(); j != r.rows().end(); ++j)
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{
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const vtkm::Id start = r.cols().begin();
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const vtkm::Id end = r.cols().end();
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functor(start, end, j, k);
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}
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}
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});
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if (errorMessage.IsErrorRaised())
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{
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throw vtkm::cont::ErrorExecution(errorString);
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}
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}
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}
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}
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