mirror of
https://gitlab.kitware.com/vtk/vtk-m
synced 2024-09-06 04:13:51 +00:00
131 lines
4.1 KiB
C++
131 lines
4.1 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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//
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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 "Benchmarker.h"
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#include <vtkm/cont/Algorithm.h>
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#include <vtkm/cont/DeviceAdapter.h>
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#include <vtkm/cont/RuntimeDeviceTracker.h>
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#include <vtkm/cont/Timer.h>
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#include <vtkm/internal/Configure.h>
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#include <vtkm/testing/Testing.h>
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#include <vtkm/List.h>
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#include <sstream>
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#ifdef VTKM_ENABLE_TBB
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#include <tbb/task_scheduler_init.h>
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#endif // TBB
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// For the TBB implementation, the number of threads can be customized using a
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// "NumThreads [numThreads]" argument.
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namespace
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{
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// Make this global so benchmarks can access the current device id:
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vtkm::cont::InitializeResult Config;
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const vtkm::UInt64 COPY_SIZE_MIN = (1 << 10); // 1 KiB
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const vtkm::UInt64 COPY_SIZE_MAX = (1 << 30); // 1 GiB
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using TypeList = vtkm::List<vtkm::UInt8,
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vtkm::Vec2ui_8,
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vtkm::Vec3ui_8,
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vtkm::Vec4ui_8,
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vtkm::UInt32,
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vtkm::Vec2ui_32,
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vtkm::UInt64,
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vtkm::Vec2ui_64,
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vtkm::Float32,
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vtkm::Vec2f_32,
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vtkm::Float64,
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vtkm::Vec2f_64,
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vtkm::Pair<vtkm::UInt32, vtkm::Float32>,
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vtkm::Pair<vtkm::UInt32, vtkm::Float64>,
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vtkm::Pair<vtkm::UInt64, vtkm::Float32>,
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vtkm::Pair<vtkm::UInt64, vtkm::Float64>>;
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template <typename ValueType>
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void CopySpeed(benchmark::State& state)
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{
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const vtkm::cont::DeviceAdapterId device = Config.Device;
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const vtkm::UInt64 numBytes = static_cast<vtkm::UInt64>(state.range(0));
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const vtkm::Id numValues = static_cast<vtkm::Id>(numBytes / sizeof(ValueType));
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state.SetLabel(vtkm::cont::GetHumanReadableSize(numBytes));
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vtkm::cont::ArrayHandle<ValueType> src;
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vtkm::cont::ArrayHandle<ValueType> dst;
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src.Allocate(numValues);
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dst.Allocate(numValues);
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vtkm::cont::Timer timer(device);
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for (auto _ : state)
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{
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(void)_;
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timer.Start();
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vtkm::cont::Algorithm::Copy(device, src, dst);
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timer.Stop();
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state.SetIterationTime(timer.GetElapsedTime());
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}
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const int64_t iterations = static_cast<int64_t>(state.iterations());
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state.SetBytesProcessed(static_cast<int64_t>(numBytes) * iterations);
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state.SetItemsProcessed(static_cast<int64_t>(numValues) * iterations);
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}
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VTKM_BENCHMARK_TEMPLATES_OPTS(CopySpeed,
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->Range(COPY_SIZE_MIN, COPY_SIZE_MAX)
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->ArgName("Bytes"),
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TypeList);
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} // end anon namespace
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int main(int argc, char* argv[])
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{
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// Parse VTK-m options:
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auto opts = vtkm::cont::InitializeOptions::RequireDevice | vtkm::cont::InitializeOptions::AddHelp;
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Config = vtkm::cont::Initialize(argc, argv, opts);
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// Setup device:
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vtkm::cont::GetRuntimeDeviceTracker().ForceDevice(Config.Device);
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// Handle NumThreads command-line arg:
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#ifdef VTKM_ENABLE_TBB
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int numThreads = tbb::task_scheduler_init::automatic;
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#endif // TBB
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if (argc == 3)
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{
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if (std::string(argv[1]) == "NumThreads")
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{
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#ifdef VTKM_ENABLE_TBB
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std::istringstream parse(argv[2]);
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parse >> numThreads;
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std::cout << "Selected " << numThreads << " TBB threads." << std::endl;
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#else
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std::cerr << "NumThreads valid only on TBB. Ignoring." << std::endl;
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#endif // TBB
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}
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}
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#ifdef VTKM_ENABLE_TBB
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// Must not be destroyed as long as benchmarks are running:
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tbb::task_scheduler_init init(numThreads);
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#endif // TBB
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// handle benchmarking related args and run benchmarks:
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VTKM_EXECUTE_BENCHMARKS(argc, argv);
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}
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