mirror of
https://gitlab.kitware.com/vtk/vtk-m
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251 lines
9.1 KiB
C++
251 lines
9.1 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 2015 National Technology & Engineering Solutions of Sandia, LLC (NTESS).
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// Copyright 2015 UT-Battelle, LLC.
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// Copyright 2015 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/ScatterCounting.h>
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#include <vtkm/cont/ArrayHandle.h>
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#include <vtkm/cont/DeviceAdapterAlgorithm.h>
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#include <vtkm/worklet/DispatcherMapField.h>
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#include <vtkm/worklet/WorkletMapField.h>
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#include <vtkm/cont/testing/Testing.h>
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#include <vector>
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namespace
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{
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struct TestScatterArrays
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{
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vtkm::cont::ArrayHandle<vtkm::IdComponent> CountArray;
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vtkm::cont::ArrayHandle<vtkm::Id> InputToOutputMap;
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vtkm::cont::ArrayHandle<vtkm::Id> OutputToInputMap;
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vtkm::cont::ArrayHandle<vtkm::IdComponent> VisitArray;
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};
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TestScatterArrays MakeScatterArraysShort()
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{
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const vtkm::Id countArraySize = 18;
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const vtkm::IdComponent countArray[countArraySize] = { 1, 2, 0, 0, 1, 0, 1, 0, 0,
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0, 0, 0, 0, 0, 1, 0, 0, 0 };
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const vtkm::Id inputToOutputMap[countArraySize] = { 0, 1, 3, 3, 3, 4, 4, 5, 5,
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5, 5, 5, 5, 5, 5, 6, 6, 6 };
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const vtkm::Id outputSize = 6;
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const vtkm::Id outputToInputMap[outputSize] = { 0, 1, 1, 4, 6, 14 };
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const vtkm::IdComponent visitArray[outputSize] = { 0, 0, 1, 0, 0, 0 };
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TestScatterArrays arrays;
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using Algorithm = vtkm::cont::DeviceAdapterAlgorithm<VTKM_DEFAULT_DEVICE_ADAPTER_TAG>;
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// Need to copy arrays so that the data does not go out of scope.
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Algorithm::Copy(vtkm::cont::make_ArrayHandle(countArray, countArraySize), arrays.CountArray);
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Algorithm::Copy(vtkm::cont::make_ArrayHandle(inputToOutputMap, countArraySize),
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arrays.InputToOutputMap);
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Algorithm::Copy(vtkm::cont::make_ArrayHandle(outputToInputMap, outputSize),
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arrays.OutputToInputMap);
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Algorithm::Copy(vtkm::cont::make_ArrayHandle(visitArray, outputSize), arrays.VisitArray);
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return arrays;
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}
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TestScatterArrays MakeScatterArraysLong()
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{
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const vtkm::Id countArraySize = 6;
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const vtkm::IdComponent countArray[countArraySize] = { 0, 1, 2, 3, 4, 5 };
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const vtkm::Id inputToOutputMap[countArraySize] = { 0, 0, 1, 3, 6, 10 };
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const vtkm::Id outputSize = 15;
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const vtkm::Id outputToInputMap[outputSize] = { 1, 2, 2, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 5 };
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const vtkm::IdComponent visitArray[outputSize] = { 0, 0, 1, 0, 1, 2, 0, 1, 2, 3, 0, 1, 2, 3, 4 };
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TestScatterArrays arrays;
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using Algorithm = vtkm::cont::DeviceAdapterAlgorithm<VTKM_DEFAULT_DEVICE_ADAPTER_TAG>;
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// Need to copy arrays so that the data does not go out of scope.
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Algorithm::Copy(vtkm::cont::make_ArrayHandle(countArray, countArraySize), arrays.CountArray);
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Algorithm::Copy(vtkm::cont::make_ArrayHandle(inputToOutputMap, countArraySize),
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arrays.InputToOutputMap);
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Algorithm::Copy(vtkm::cont::make_ArrayHandle(outputToInputMap, outputSize),
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arrays.OutputToInputMap);
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Algorithm::Copy(vtkm::cont::make_ArrayHandle(visitArray, outputSize), arrays.VisitArray);
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return arrays;
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}
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TestScatterArrays MakeScatterArraysZero()
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{
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const vtkm::Id countArraySize = 6;
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const vtkm::IdComponent countArray[countArraySize] = { 0, 0, 0, 0, 0, 0 };
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const vtkm::Id inputToOutputMap[countArraySize] = { 0, 0, 0, 0, 0, 0 };
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TestScatterArrays arrays;
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using Algorithm = vtkm::cont::DeviceAdapterAlgorithm<VTKM_DEFAULT_DEVICE_ADAPTER_TAG>;
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// Need to copy arrays so that the data does not go out of scope.
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Algorithm::Copy(vtkm::cont::make_ArrayHandle(countArray, countArraySize), arrays.CountArray);
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Algorithm::Copy(vtkm::cont::make_ArrayHandle(inputToOutputMap, countArraySize),
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arrays.InputToOutputMap);
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arrays.OutputToInputMap.Allocate(0);
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arrays.VisitArray.Allocate(0);
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return arrays;
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}
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struct TestScatterCountingWorklet : public vtkm::worklet::WorkletMapField
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{
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typedef void ControlSignature(FieldIn<> inputIndices,
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FieldOut<> copyIndices,
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FieldOut<> recordVisit,
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FieldOut<> recordWorkId);
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typedef void ExecutionSignature(_1, _2, _3, _4, VisitIndex, WorkIndex);
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using ScatterType = vtkm::worklet::ScatterCounting;
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VTKM_CONT
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ScatterType GetScatter() const { return this->Scatter; }
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template <typename CountArrayType>
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VTKM_CONT TestScatterCountingWorklet(const CountArrayType& countArray)
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: Scatter(countArray, VTKM_DEFAULT_DEVICE_ADAPTER_TAG())
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{
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}
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template <typename CountArrayType, typename Device>
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VTKM_CONT TestScatterCountingWorklet(const CountArrayType& countArray, Device)
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: Scatter(countArray, Device())
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{
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}
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VTKM_CONT
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TestScatterCountingWorklet(const vtkm::worklet::ScatterCounting& scatter)
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: Scatter(scatter)
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{
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}
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VTKM_EXEC
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void operator()(vtkm::Id inputIndex,
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vtkm::Id& indexCopy,
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vtkm::IdComponent& writeVisit,
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vtkm::Float32& captureWorkId,
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vtkm::IdComponent visitIndex,
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vtkm::Id workId) const
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{
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indexCopy = inputIndex;
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writeVisit = visitIndex;
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captureWorkId = TestValue(workId, vtkm::Float32());
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}
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private:
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ScatterType Scatter;
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};
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template <typename T>
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void CompareArrays(vtkm::cont::ArrayHandle<T> array1, vtkm::cont::ArrayHandle<T> array2)
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{
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using PortalType = typename vtkm::cont::ArrayHandle<T>::PortalConstControl;
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PortalType portal1 = array1.GetPortalConstControl();
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PortalType portal2 = array2.GetPortalConstControl();
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VTKM_TEST_ASSERT(portal1.GetNumberOfValues() == portal2.GetNumberOfValues(),
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"Arrays are not the same length.");
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for (vtkm::Id index = 0; index < portal1.GetNumberOfValues(); index++)
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{
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T value1 = portal1.Get(index);
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T value2 = portal2.Get(index);
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VTKM_TEST_ASSERT(value1 == value2, "Array values not equal.");
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}
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}
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// This unit test makes sure the ScatterCounting generates the correct map
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// and visit arrays.
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void TestScatterArrayGeneration(const TestScatterArrays& arrays)
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{
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std::cout << " Testing array generation" << std::endl;
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vtkm::worklet::ScatterCounting scatter(
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arrays.CountArray, VTKM_DEFAULT_DEVICE_ADAPTER_TAG(), true);
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vtkm::Id inputSize = arrays.CountArray.GetNumberOfValues();
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std::cout << " Checking input to output map." << std::endl;
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CompareArrays(arrays.InputToOutputMap, scatter.GetInputToOutputMap());
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std::cout << " Checking output to input map." << std::endl;
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CompareArrays(arrays.OutputToInputMap, scatter.GetOutputToInputMap(inputSize));
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std::cout << " Checking visit array." << std::endl;
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CompareArrays(arrays.VisitArray, scatter.GetVisitArray(inputSize));
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}
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// This is more of an integration test that makes sure the scatter works with a
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// worklet invocation.
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void TestScatterWorklet(const TestScatterArrays& arrays)
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{
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std::cout << " Testing scatter counting in a worklet." << std::endl;
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vtkm::worklet::ScatterCounting scatter(arrays.CountArray, VTKM_DEFAULT_DEVICE_ADAPTER_TAG());
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TestScatterCountingWorklet worklet(scatter);
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vtkm::worklet::DispatcherMapField<TestScatterCountingWorklet> dispatcher(worklet);
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vtkm::Id inputSize = arrays.CountArray.GetNumberOfValues();
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vtkm::cont::ArrayHandleIndex inputIndices(inputSize);
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vtkm::cont::ArrayHandle<vtkm::Id> outputToInputMapCopy;
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vtkm::cont::ArrayHandle<vtkm::IdComponent> visitCopy;
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vtkm::cont::ArrayHandle<vtkm::Float32> captureWorkId;
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std::cout << " Invoke worklet" << std::endl;
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dispatcher.Invoke(inputIndices, outputToInputMapCopy, visitCopy, captureWorkId);
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std::cout << " Check output to input map." << std::endl;
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CompareArrays(outputToInputMapCopy, arrays.OutputToInputMap);
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std::cout << " Check visit." << std::endl;
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CompareArrays(visitCopy, arrays.VisitArray);
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std::cout << " Check work id." << std::endl;
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CheckPortal(captureWorkId.GetPortalConstControl());
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}
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void TestScatterCountingWithArrays(const TestScatterArrays& arrays)
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{
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TestScatterArrayGeneration(arrays);
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TestScatterWorklet(arrays);
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}
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void TestScatterCounting()
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{
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std::cout << "Testing arrays with output smaller than input." << std::endl;
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TestScatterCountingWithArrays(MakeScatterArraysShort());
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std::cout << "Testing arrays with output larger than input." << std::endl;
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TestScatterCountingWithArrays(MakeScatterArraysLong());
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std::cout << "Testing arrays with zero output." << std::endl;
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TestScatterCountingWithArrays(MakeScatterArraysZero());
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}
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} // anonymous namespace
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int UnitTestScatterCounting(int, char* [])
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{
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return vtkm::cont::testing::Testing::Run(TestScatterCounting);
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}
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