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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
// Tests vtkAggregateDataSetFilter.
/*
** This test only builds if MPI is in use. It uses 4 MPI processes to
** test that the data is aggregated down to two processes. It also uses
** rendering to generate the pieces on each process but uses a simple
** point count to verify results. The VTK XML writers could have been
** used but this module is not dependent on those writers yet so adding
** yet another dependency seemed bad.
*/
#include "vtkAggregateDataSetFilter.h"
#include "vtkContourFilter.h"
#include "vtkDataSet.h"
#include "vtkDataSetSurfaceFilter.h"
#include "vtkMPICommunicator.h"
#include "vtkMPIController.h"
#include "vtkNew.h"
#include "vtkPolyDataMapper.h"
#include "vtkRTAnalyticSource.h"
#include "vtkThresholdPoints.h"
#include <vtk_mpi.h>
int AggregateDataSet(int argc, char* argv[])
{
// This is here to avoid false leak messages from vtkDebugLeaks when
// using mpich. It appears that the root process which spawns all the
// main processes waits in MPI_Init() and calls exit() when
// the others are done, causing apparent memory leaks for any objects
// created before MPI_Init().
MPI_Init(&argc, &argv);
// Note that this will create a vtkMPIController if MPI
// is configured, vtkThreadedController otherwise.
vtkMPIController* contr = vtkMPIController::New();
contr->Initialize(&argc, &argv, 1);
int retVal = EXIT_SUCCESS;
vtkMultiProcessController::SetGlobalController(contr);
int me = contr->GetLocalProcessId();
if (!contr->IsA("vtkMPIController"))
{
if (me == 0)
{
cout << "AggregateDataSet test requires MPI" << endl;
}
contr->Delete();
return EXIT_FAILURE;
}
int numProcs = contr->GetNumberOfProcesses();
// Create and execute pipeline
vtkRTAnalyticSource* wavelet = vtkRTAnalyticSource::New();
vtkDataSetSurfaceFilter* toPolyData = vtkDataSetSurfaceFilter::New();
vtkAggregateDataSetFilter* aggregate = vtkAggregateDataSetFilter::New();
vtkPolyDataMapper* mapper = vtkPolyDataMapper::New();
toPolyData->SetInputConnection(wavelet->GetOutputPort());
aggregate->SetInputConnection(toPolyData->GetOutputPort());
aggregate->SetNumberOfTargetProcesses(2);
mapper->SetInputConnection(aggregate->GetOutputPort());
mapper->SetScalarRange(0, numProcs);
mapper->SetPiece(me);
mapper->SetNumberOfPieces(numProcs);
mapper->Update();
if (me % 2 == 0 && vtkDataSet::SafeDownCast(aggregate->GetOutput())->GetNumberOfPoints() != 1408)
{
vtkGenericWarningMacro("Wrong number of polydata points on process "
<< me << ". Should be 1408 but is "
<< vtkDataSet::SafeDownCast(aggregate->GetOutput())->GetNumberOfPoints());
retVal = EXIT_FAILURE;
}
else if (me % 2 != 0 &&
vtkDataSet::SafeDownCast(aggregate->GetOutput())->GetNumberOfPoints() != 0)
{
vtkGenericWarningMacro("Wrong number of polydata points on process "
<< me << ". Should be 0 but is "
<< vtkDataSet::SafeDownCast(aggregate->GetOutput())->GetNumberOfPoints());
retVal = EXIT_FAILURE;
}
vtkThresholdPoints* threshold = vtkThresholdPoints::New();
threshold->ThresholdBetween(0, 500);
threshold->SetInputConnection(wavelet->GetOutputPort());
aggregate->SetInputConnection(threshold->GetOutputPort());
vtkContourFilter* contour = vtkContourFilter::New();
double scalar_range[2] = { 50, 400 };
contour->GenerateValues(5, scalar_range);
contour->SetInputConnection(aggregate->GetOutputPort());
mapper->SetInputConnection(contour->GetOutputPort());
mapper->Update();
if (me % 2 == 0 && vtkDataSet::SafeDownCast(aggregate->GetOutput())->GetNumberOfPoints() != 5082)
{
vtkGenericWarningMacro("Wrong number of unstructured grid points on process "
<< me << ". Should be 5082 but is "
<< vtkDataSet::SafeDownCast(aggregate->GetOutput())->GetNumberOfPoints());
retVal = EXIT_FAILURE;
}
else if (me % 2 != 0 &&
vtkDataSet::SafeDownCast(aggregate->GetOutput())->GetNumberOfPoints() != 0)
{
vtkGenericWarningMacro("Wrong number of unstructured grid points on process "
<< me << ". Should be 0 but is "
<< vtkDataSet::SafeDownCast(aggregate->GetOutput())->GetNumberOfPoints());
retVal = EXIT_FAILURE;
}
mapper->Delete();
contour->Delete();
threshold->Delete();
aggregate->Delete();
toPolyData->Delete();
wavelet->Delete();
contr->Finalize();
contr->Delete();
return retVal;
}
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