vtk-m/vtkm/filter/ExtractStructured.hxx
Robert Maynard 7eaedfe84b Reduce compiler memory usage by removing auto hxx inclusion
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
```
2020-11-19 09:59:25 -05:00

53 lines
2.0 KiB
C++

//============================================================================
// Copyright (c) Kitware, Inc.
// All rights reserved.
// See LICENSE.txt for details.
//
// This software is distributed WITHOUT ANY WARRANTY; without even
// the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
// PURPOSE. See the above copyright notice for more information.
//============================================================================
#ifndef vtk_m_filter_ExtractStructured_hxx
#define vtk_m_filter_ExtractStructured_hxx
#include <vtkm/filter/ExtractStructured.h>
namespace vtkm
{
namespace filter
{
//-----------------------------------------------------------------------------
template <typename DerivedPolicy>
vtkm::cont::DataSet ExtractStructured::DoExecute(const vtkm::cont::DataSet& input,
vtkm::filter::PolicyBase<DerivedPolicy> policy)
{
const vtkm::cont::DynamicCellSet& cells = input.GetCellSet();
const vtkm::cont::CoordinateSystem& coordinates = input.GetCoordinateSystem();
auto cellset = this->Worklet.Run(vtkm::filter::ApplyPolicyCellSetStructured(cells, policy, *this),
this->VOI,
this->SampleRate,
this->IncludeBoundary,
this->IncludeOffset);
auto coords = this->Worklet.MapCoordinates(coordinates);
vtkm::cont::CoordinateSystem outputCoordinates(coordinates.GetName(), coords);
vtkm::cont::DataSet output;
output.SetCellSet(vtkm::cont::DynamicCellSet(cellset));
output.AddCoordinateSystem(outputCoordinates);
// Create map arrays for mapping fields. Could potentially save some time to first check to see
// if these arrays would be used.
this->CellFieldMap =
this->Worklet.ProcessCellField(vtkm::cont::ArrayHandleIndex(input.GetNumberOfCells()));
this->PointFieldMap =
this->Worklet.ProcessPointField(vtkm::cont::ArrayHandleIndex(input.GetNumberOfPoints()));
return output;
}
}
}
#endif