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https://gitlab.kitware.com/vtk/vtk-m
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e149dcf1c1
Rob noticed a degridation in performance in some worklet tests when ArrayCopy was added. I hypothesize that this slowdown is doing the array copy with TBB instead of serial in the serial tests. (There have been some checks in the existing code to suggest that some operations in TBB can be slower than serial.) This change forces the array copy to be on the device for which we are testing.
108 lines
3.8 KiB
C++
108 lines
3.8 KiB
C++
//=============================================================================
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//
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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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// Copyright 2016 National Technology & Engineering Solutions of Sandia, LLC (NTESS).
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// Copyright 2016 UT-Battelle, LLC.
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// Copyright 2016 Los Alamos National Security.
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//
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// Under the terms of Contract DE-NA0003525 with NTESS,
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// the U.S. Government retains certain rights in this software.
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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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//=============================================================================
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#include <vtkm/worklet/Keys.h>
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#include <vtkm/cont/ArrayCopy.h>
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#include <vtkm/cont/testing/Testing.h>
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namespace
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{
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static const vtkm::Id ARRAY_SIZE = 1033;
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static const vtkm::Id NUM_UNIQUE = ARRAY_SIZE / 10;
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template <typename KeyPortal, typename IdPortal, typename IdComponentPortal>
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void CheckKeyReduce(const KeyPortal& originalKeys,
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const KeyPortal& uniqueKeys,
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const IdPortal& sortedValuesMap,
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const IdPortal& offsets,
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const IdComponentPortal& counts)
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{
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using KeyType = typename KeyPortal::ValueType;
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vtkm::Id originalSize = originalKeys.GetNumberOfValues();
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vtkm::Id uniqueSize = uniqueKeys.GetNumberOfValues();
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VTKM_TEST_ASSERT(originalSize == sortedValuesMap.GetNumberOfValues(), "Inconsistent array size.");
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VTKM_TEST_ASSERT(uniqueSize == offsets.GetNumberOfValues(), "Inconsistent array size.");
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VTKM_TEST_ASSERT(uniqueSize == counts.GetNumberOfValues(), "Inconsistent array size.");
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for (vtkm::Id uniqueIndex = 0; uniqueIndex < uniqueSize; uniqueIndex++)
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{
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KeyType key = uniqueKeys.Get(uniqueIndex);
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vtkm::Id offset = offsets.Get(uniqueIndex);
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vtkm::IdComponent groupCount = counts.Get(uniqueIndex);
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for (vtkm::IdComponent groupIndex = 0; groupIndex < groupCount; groupIndex++)
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{
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vtkm::Id originalIndex = sortedValuesMap.Get(offset + groupIndex);
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KeyType originalKey = originalKeys.Get(originalIndex);
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VTKM_TEST_ASSERT(key == originalKey, "Bad key lookup.");
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}
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}
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}
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template <typename KeyType>
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void TryKeyType(KeyType)
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{
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KeyType keyBuffer[ARRAY_SIZE];
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for (vtkm::Id index = 0; index < ARRAY_SIZE; index++)
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{
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keyBuffer[index] = TestValue(index % NUM_UNIQUE, KeyType());
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}
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vtkm::cont::ArrayHandle<KeyType> keyArray = vtkm::cont::make_ArrayHandle(keyBuffer, ARRAY_SIZE);
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vtkm::cont::ArrayHandle<KeyType> sortedKeys;
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vtkm::cont::ArrayCopy(keyArray, sortedKeys, VTKM_DEFAULT_DEVICE_ADAPTER_TAG());
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vtkm::worklet::Keys<KeyType> keys(sortedKeys, VTKM_DEFAULT_DEVICE_ADAPTER_TAG());
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VTKM_TEST_ASSERT(keys.GetInputRange() == NUM_UNIQUE, "Keys has bad input range.");
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CheckKeyReduce(keyArray.GetPortalConstControl(),
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keys.GetUniqueKeys().GetPortalConstControl(),
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keys.GetSortedValuesMap().GetPortalConstControl(),
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keys.GetOffsets().GetPortalConstControl(),
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keys.GetCounts().GetPortalConstControl());
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}
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void TestKeys()
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{
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std::cout << "Testing vtkm::Id keys." << std::endl;
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TryKeyType(vtkm::Id());
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std::cout << "Testing vtkm::IdComponent keys." << std::endl;
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TryKeyType(vtkm::IdComponent());
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std::cout << "Testing vtkm::UInt8 keys." << std::endl;
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TryKeyType(vtkm::UInt8());
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std::cout << "Testing vtkm::Id3 keys." << std::endl;
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TryKeyType(vtkm::Id3());
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}
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} // anonymous namespace
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int UnitTestKeys(int, char* [])
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{
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return vtkm::cont::testing::Testing::Run(TestKeys);
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}
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