mirror of
https://gitlab.kitware.com/vtk/vtk-m
synced 2024-09-20 02:55:47 +00:00
fdaccc22db
Change the VTKM_CONT_EXPORT to VTKM_CONT. (Likewise for EXEC and EXEC_CONT.) Remove the inline from these macros so that they can be applied to everything, including implementations in a library. Because inline is not declared in these modifies, you have to add the keyword to functions and methods where the implementation is not inlined in the class.
266 lines
9.0 KiB
C++
266 lines
9.0 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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// 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/worklet/WaveletCompressor.h>
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#include <vtkm/cont/testing/Testing.h>
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#include <vtkm/cont/ArrayHandlePermutation.h>
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#include <vtkm/cont/Timer.h>
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#include <vector>
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#include <iomanip>
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namespace vtkm
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{
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namespace worklet
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{
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namespace wavelets
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{
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class SineWorklet : public vtkm::worklet::WorkletMapField
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{
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public:
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typedef void ControlSignature(FieldInOut<>);
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typedef void ExecutionSignature(_1, WorkIndex);
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template<typename T>
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VTKM_EXEC
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void operator()(T& x, const vtkm::Id& workIdx) const
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{
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x = vtkm::Sin(vtkm::Float64(workIdx) / 100.0) * 100.0;
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}
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};
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class GaussianWorklet2D : public vtkm::worklet::WorkletMapField
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{
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public:
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typedef void ControlSignature(FieldInOut<>);
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typedef void ExecutionSignature(_1, WorkIndex);
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VTKM_EXEC
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GaussianWorklet2D( vtkm::Id dx, vtkm::Id dy, vtkm::Float64 a,
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vtkm::Float64 x, vtkm::Float64 y,
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vtkm::Float64 sx, vtkm::Float64 xy )
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: dimX( dx ), dimY( dy ), amp (a),
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x0( x ), y0( y ),
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sigmaX( sx ), sigmaY( xy )
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{
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sigmaX2 = 2 * sigmaX * sigmaX;
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sigmaY2 = 2 * sigmaY * sigmaY;
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}
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VTKM_EXEC
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void Sig1Dto2D( vtkm::Id idx, vtkm::Id &x, vtkm::Id &y ) const
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{
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x = idx % dimX;
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y = idx / dimX;
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}
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VTKM_EXEC
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vtkm::Float64 GetGaussian( vtkm::Float64 x, vtkm::Float64 y ) const
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{
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vtkm::Float64 power = (x-x0) * (x-x0) / sigmaX2 + (y-y0) * (y-y0) / sigmaY2;
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return vtkm::Exp( power * -1.0 ) * amp;
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}
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template<typename T>
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VTKM_EXEC
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void operator()(T& val, const vtkm::Id& workIdx) const
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{
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vtkm::Id x, y;
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Sig1Dto2D( workIdx, x, y );
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val = GetGaussian( static_cast<vtkm::Float64>(x), static_cast<vtkm::Float64>(y) );
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}
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private: // see wikipedia page
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const vtkm::Id dimX, dimY; // 2D extent
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const vtkm::Float64 amp; // amplitude
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const vtkm::Float64 x0, y0; // center
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const vtkm::Float64 sigmaX, sigmaY; // spread
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vtkm::Float64 sigmaX2, sigmaY2; // 2 * sigma * sigma
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};
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}
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}
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}
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template< typename ArrayType >
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void FillArray( ArrayType& array )
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{
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typedef vtkm::worklet::wavelets::SineWorklet SineWorklet;
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SineWorklet worklet;
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vtkm::worklet::DispatcherMapField< SineWorklet > dispatcher( worklet );
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dispatcher.Invoke( array );
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}
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template< typename ArrayType >
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void FillArray2D( ArrayType& array, vtkm::Id dimX, vtkm::Id dimY )
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{
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typedef vtkm::worklet::wavelets::GaussianWorklet2D WorkletType;
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WorkletType worklet( dimX, dimY, 100.0,
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static_cast<vtkm::Float64>(dimX)/2.0, // center
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static_cast<vtkm::Float64>(dimY)/2.0, // center
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static_cast<vtkm::Float64>(dimX)/4.0, // spread
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static_cast<vtkm::Float64>(dimY)/4.0);// spread
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vtkm::worklet::DispatcherMapField< WorkletType > dispatcher( worklet );
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dispatcher.Invoke( array );
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}
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void TestDecomposeReconstruct2D()
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{
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std::cout << "Testing 2D wavelet compressor on a 1000x1000 square: " << std::endl;
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vtkm::Id sigX = 1000;
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vtkm::Id sigY = 1000;
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vtkm::Id sigLen = sigX * sigY;
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// make input data array handle
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vtkm::cont::ArrayHandle<vtkm::Float64> inputArray;
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inputArray.PrepareForOutput( sigLen, VTKM_DEFAULT_DEVICE_ADAPTER_TAG() );
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FillArray2D( inputArray, sigX, sigY );
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vtkm::cont::ArrayHandle<vtkm::Float64> outputArray;
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// Use a WaveletCompressor
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vtkm::worklet::wavelets::WaveletName wname = vtkm::worklet::wavelets::CDF9_7;
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std::cout << "Wavelet kernel = CDF 9/7" << std::endl;
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vtkm::worklet::WaveletCompressor compressor( wname );
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vtkm::Id XMaxLevel = compressor.GetWaveletMaxLevel( sigX );
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vtkm::Id YMaxLevel = compressor.GetWaveletMaxLevel( sigY );
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vtkm::Id nLevels = vtkm::Min( XMaxLevel, YMaxLevel );
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std::cout << "Decomposition levels = " << nLevels << std::endl;
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std::vector<vtkm::Id> L;
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vtkm::Float64 computationTime = 0.0;
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vtkm::Float64 elapsedTime1, elapsedTime2, elapsedTime3;
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// Decompose
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vtkm::cont::Timer<> timer;
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computationTime =
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compressor.WaveDecompose2D( inputArray, nLevels, sigX, sigY, outputArray, L,
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VTKM_DEFAULT_DEVICE_ADAPTER_TAG() );
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elapsedTime1 = timer.GetElapsedTime();
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std::cout << "Decompose time = " << elapsedTime1 << std::endl;
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std::cout << " ->computation time = " << computationTime << std::endl;
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// Squash small coefficients
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timer.Reset();
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vtkm::Float64 cratio = 1.0; // X:1 compression, where X >= 1
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compressor.SquashCoefficients( outputArray, cratio, VTKM_DEFAULT_DEVICE_ADAPTER_TAG() );
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elapsedTime2 = timer.GetElapsedTime();
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std::cout << "Squash time = " << elapsedTime2 << std::endl;
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// Reconstruct
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vtkm::cont::ArrayHandle<vtkm::Float64> reconstructArray;
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timer.Reset();
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computationTime =
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compressor.WaveReconstruct2D( outputArray, nLevels, sigX, sigY, reconstructArray, L,
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VTKM_DEFAULT_DEVICE_ADAPTER_TAG() );
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elapsedTime3 = timer.GetElapsedTime();
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std::cout << "Reconstruction time = " << elapsedTime3 << std::endl;
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std::cout << " ->computation time = " << computationTime << std::endl;
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std::cout << "Total time = "
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<< (elapsedTime1 + elapsedTime2 + elapsedTime3) << std::endl;
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outputArray.ReleaseResources();
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compressor.EvaluateReconstruction( inputArray, reconstructArray, VTKM_DEFAULT_DEVICE_ADAPTER_TAG() );
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timer.Reset();
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for( vtkm::Id i = 0; i < reconstructArray.GetNumberOfValues(); i++ )
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{
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VTKM_TEST_ASSERT( test_equal( reconstructArray.GetPortalConstControl().Get(i),
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inputArray.GetPortalConstControl().Get(i) ),
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"WaveletCompressor 2D failed..." );
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}
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elapsedTime1 = timer.GetElapsedTime();
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std::cout << "Verification time = " << elapsedTime1 << std::endl;
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}
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void TestDecomposeReconstruct1D()
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{
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std::cout << "Testing 1D wavelet compressor on a 1 million sized array " << std::endl;
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vtkm::Id million = 1000000;
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vtkm::Id sigLen = million * 1;
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// make input data array handle
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std::vector<vtkm::Float64> tmpVector;
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for( vtkm::Id i = 0; i < sigLen; i++ )
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{
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tmpVector.push_back( 100.0 * vtkm::Sin(static_cast<vtkm::Float64>(i)/100.0 ));
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}
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vtkm::cont::ArrayHandle<vtkm::Float64> inputArray =
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vtkm::cont::make_ArrayHandle(tmpVector);
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vtkm::cont::ArrayHandle<vtkm::Float64> outputArray;
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// Use a WaveletCompressor
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vtkm::worklet::wavelets::WaveletName wname = vtkm::worklet::wavelets::CDF9_7;
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std::cout << "Wavelet kernel = CDF 9/7" << std::endl;
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vtkm::worklet::WaveletCompressor compressor( wname );
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// User maximum decompose levels, and no compression
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vtkm::Id maxLevel = compressor.GetWaveletMaxLevel( sigLen );
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vtkm::Id nLevels = maxLevel;
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std::cout << "Decomposition levels = " << nLevels << std::endl;
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std::vector<vtkm::Id> L;
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// Decompose
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vtkm::cont::Timer<> timer;
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compressor.WaveDecompose( inputArray, nLevels, outputArray, L, VTKM_DEFAULT_DEVICE_ADAPTER_TAG() );
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vtkm::Float64 elapsedTime = timer.GetElapsedTime();
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std::cout << "Decompose time = " << elapsedTime << std::endl;
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// Reconstruct
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vtkm::cont::ArrayHandle<vtkm::Float64> reconstructArray;
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timer.Reset();
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compressor.WaveReconstruct( outputArray, nLevels, L, reconstructArray, VTKM_DEFAULT_DEVICE_ADAPTER_TAG() );
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elapsedTime = timer.GetElapsedTime();
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std::cout << "Reconstruction time = " << elapsedTime << std::endl;
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compressor.EvaluateReconstruction( inputArray, reconstructArray, VTKM_DEFAULT_DEVICE_ADAPTER_TAG() );
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timer.Reset();
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for( vtkm::Id i = 0; i < reconstructArray.GetNumberOfValues(); i++ )
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{
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VTKM_TEST_ASSERT( test_equal( reconstructArray.GetPortalConstControl().Get(i),
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inputArray.GetPortalConstControl().Get(i)),
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"WaveletCompressor 1D failed..." );
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}
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elapsedTime = timer.GetElapsedTime();
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std::cout << "Verification time = " << elapsedTime << std::endl;
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}
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void TestWaveletCompressor()
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{
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TestDecomposeReconstruct1D();
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std::cout << std::endl;
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TestDecomposeReconstruct2D();
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}
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int UnitTestWaveletCompressor(int, char *[])
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{
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return vtkm::cont::testing::Testing::Run(TestWaveletCompressor);
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}
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