mirror of
https://gitlab.kitware.com/vtk/vtk-m
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7d249e8996
When writing multiple backend code users of vtkm need to use the DeviceAdapterTraits classes, so therefore we should move them to vtkm::cont to signify this.
114 lines
3.9 KiB
C++
114 lines
3.9 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/ArrayHandleCast.h>
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#include <vtkm/cont/DataSet.h>
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#include <vtkm/cont/DeviceAdapterAlgorithm.h>
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#include <vtkm/cont/Timer.h>
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#include <vtkm/io/reader/VTKDataSetReader.h>
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#include <vtkm/io/writer/VTKDataSetWriter.h>
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#include <vtkm/worklet/Clip.h>
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#include <algorithm>
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#include <fstream>
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#include <iostream>
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#include <string>
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#include <stdexcept>
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VTKM_THIRDPARTY_PRE_INCLUDE
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#include <boost/lexical_cast.hpp>
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VTKM_THIRDPARTY_POST_INCLUDE
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typedef vtkm::Vec<vtkm::Float32, 3> FloatVec3;
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int main(int argc, char *argv[])
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{
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if (argc < 4)
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{
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std::cout << "Usage: " << std::endl
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<< "$ " << argv[0]
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<< " <input_vtk_file> [fieldName] <isoval> <output_vtk_file>"
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<< std::endl;
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return 1;
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}
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typedef VTKM_DEFAULT_DEVICE_ADAPTER_TAG DeviceAdapter;
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std::cout << "Device Adapter Id: "
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<< vtkm::cont::DeviceAdapterTraits<DeviceAdapter>::GetId()
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<< std::endl;
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vtkm::io::reader::VTKDataSetReader reader(argv[1]);
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vtkm::cont::DataSet input = reader.ReadDataSet();
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vtkm::cont::Field scalarField = (argc == 5) ?
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input.GetField(argv[2]) :
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input.GetField(0);
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vtkm::Float32 clipValue = boost::lexical_cast<vtkm::Float32>(argv[argc - 2]);
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vtkm::worklet::Clip<DeviceAdapter> clip;
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vtkm::cont::Timer<DeviceAdapter> total;
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vtkm::cont::Timer<DeviceAdapter> timer;
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vtkm::cont::CellSetExplicit<> outputCellSet =
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clip.Run(input.GetCellSet(0),
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scalarField.GetData().ResetTypeList(vtkm::TypeListTagScalarAll()),
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clipValue);
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vtkm::Float64 clipTime = timer.GetElapsedTime();
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vtkm::cont::DataSet output;
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output.AddCellSet(outputCellSet);
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timer.Reset();
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vtkm::cont::DynamicArrayHandle coords =
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clip.ProcessField(input.GetCoordinateSystem(0).GetData());
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vtkm::Float64 processCoordinatesTime = timer.GetElapsedTime();
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output.AddCoordinateSystem(vtkm::cont::CoordinateSystem("coordinates", 1, coords));
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timer.Reset();
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for (vtkm::Id i = 0; i < input.GetNumberOfFields(); ++i)
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{
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vtkm::cont::Field inField = input.GetField(i);
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if (inField.GetAssociation() != vtkm::cont::Field::ASSOC_POINTS)
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{
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continue; // clip only supports point fields for now.
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}
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vtkm::cont::DynamicArrayHandle data =
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clip.ProcessField(inField.GetData().ResetTypeList(vtkm::TypeListTagAll()));
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output.AddField(vtkm::cont::Field(inField.GetName(), 1,
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vtkm::cont::Field::ASSOC_POINTS, data));
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}
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vtkm::Float64 processScalarsTime = timer.GetElapsedTime();
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vtkm::Float64 totalTime = total.GetElapsedTime();
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std::cout << "Timings: " << std::endl
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<< "clip: " << clipTime << std::endl
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<< "process coordinates: " << processCoordinatesTime << std::endl
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<< "process scalars: " << processScalarsTime << std::endl
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<< "Total: " << totalTime << std::endl;
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std::ofstream outFile(argv[argc - 1]);
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vtkm::io::writer::VTKDataSetWriter::Write(outFile, output);
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outFile.close();
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return 0;
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}
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