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https://gitlab.kitware.com/vtk/vtk-m
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7eaedfe84b
A large portion of the VTK-m filters are now compiled into the vtkm_filter library. These pre-built filters now don't include the respective hxx file to remove the amount of template instantiation users do. To verify that this removal reduces compiler memory ( and maybe time) I profiled the compiler while it building filter tests in debug mode. Here is a selection of results: ``` CleanGrid 10.25s => 9.01s, 901MB => 795MB ExternalFaces 13.40s => 5.96s, 1122MB => 744MB ExtractStructured 4.69s => 4.75s, 492MB => 492MB GradientExplicit 22.97s => 5.88s, 1296MB => 740MB ```
74 lines
2.4 KiB
C++
74 lines
2.4 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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#ifndef vtkm_m_filter_CleanGrid_hxx
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#define vtkm_m_filter_CleanGrid_hxx
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#include <vtkm/worklet/CellDeepCopy.h>
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#include <vtkm/worklet/RemoveUnusedPoints.h>
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#include <vector>
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namespace vtkm
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{
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namespace filter
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{
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template <typename Policy>
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vtkm::cont::DataSet CleanGrid::DoExecute(const vtkm::cont::DataSet& inData,
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vtkm::filter::PolicyBase<Policy> policy)
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{
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using CellSetType = vtkm::cont::CellSetExplicit<>;
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CellSetType outputCellSet;
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// Do a deep copy of the cells to new CellSetExplicit structures
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const vtkm::cont::DynamicCellSet& inCellSet = inData.GetCellSet();
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if (inCellSet.IsType<CellSetType>())
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{
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// Is expected type, do a shallow copy
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outputCellSet = inCellSet.Cast<CellSetType>();
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}
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else
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{ // Clean the grid
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auto deducedCellSet = vtkm::filter::ApplyPolicyCellSet(inCellSet, policy, *this);
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vtkm::cont::ArrayHandle<vtkm::IdComponent> numIndices;
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this->Invoke(worklet::CellDeepCopy::CountCellPoints{}, deducedCellSet, numIndices);
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vtkm::cont::ArrayHandle<vtkm::UInt8> shapes;
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vtkm::cont::ArrayHandle<vtkm::Id> offsets;
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vtkm::Id connectivitySize;
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vtkm::cont::ConvertNumIndicesToOffsets(numIndices, offsets, connectivitySize);
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numIndices.ReleaseResourcesExecution();
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vtkm::cont::ArrayHandle<vtkm::Id> connectivity;
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connectivity.Allocate(connectivitySize);
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this->Invoke(worklet::CellDeepCopy::PassCellStructure{},
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deducedCellSet,
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shapes,
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vtkm::cont::make_ArrayHandleGroupVecVariable(connectivity, offsets));
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shapes.ReleaseResourcesExecution();
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offsets.ReleaseResourcesExecution();
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connectivity.ReleaseResourcesExecution();
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outputCellSet.Fill(deducedCellSet.GetNumberOfPoints(), shapes, connectivity, offsets);
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//Release the input grid from the execution space
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deducedCellSet.ReleaseResourcesExecution();
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}
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return this->GenerateOutput(inData, outputCellSet);
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}
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}
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}
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#endif
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