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/*=========================================================================
Program: Visualization Toolkit
Module: vtkPComputeHistogram2DOutliers.cxx
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm 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.
=========================================================================*/
/*-------------------------------------------------------------------------
Copyright 2009 Sandia Corporation.
Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
the U.S. Government retains certain rights in this software.
-------------------------------------------------------------------------*/
#include "vtkPComputeHistogram2DOutliers.h"
//------------------------------------------------------------------------------
#include "vtkCollection.h"
#include "vtkCommunicator.h"
#include "vtkDataArray.h"
#include "vtkDoubleArray.h"
#include "vtkImageData.h"
#include "vtkImageMedian3D.h"
#include "vtkImageGradientMagnitude.h"
#include "vtkIdList.h"
#include "vtkIdTypeArray.h"
#include "vtkInformation.h"
#include "vtkInformationVector.h"
#include "vtkMultiBlockDataSet.h"
#include "vtkMultiProcessController.h"
#include "vtkObjectFactory.h"
#include "vtkPointData.h"
#include "vtkSelectionNode.h"
#include "vtkSmartPointer.h"
#include "vtkTable.h"
//------------------------------------------------------------------------------
vtkStandardNewMacro(vtkPComputeHistogram2DOutliers);
vtkCxxSetObjectMacro(vtkPComputeHistogram2DOutliers, Controller, vtkMultiProcessController);
//------------------------------------------------------------------------------
vtkPComputeHistogram2DOutliers::vtkPComputeHistogram2DOutliers()
{
this->Controller = 0;
this->SetController(vtkMultiProcessController::GetGlobalController());
}
//------------------------------------------------------------------------------
vtkPComputeHistogram2DOutliers::~vtkPComputeHistogram2DOutliers()
{
this->SetController(0);
}
//------------------------------------------------------------------------------
void vtkPComputeHistogram2DOutliers::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os,indent);
os << indent << "Controller: " << this->Controller << endl;
}
//------------------------------------------------------------------------------
int vtkPComputeHistogram2DOutliers::RequestData(
vtkInformation* request,
vtkInformationVector** inputVector,
vtkInformationVector* outputVector)
{
if(!this->Superclass::RequestData(request,inputVector,outputVector))
return 0;
if (!this->Controller || this->Controller->GetNumberOfProcesses() <= 1)
{
// Nothing to do for single process.
return 1;
}
vtkCommunicator* comm = this->Controller->GetCommunicator();
if (!comm)
{
vtkErrorMacro("Need a communicator.");
return 0;
}
// get the ouptut
vtkInformation *outTableInfo = outputVector->GetInformationObject(OUTPUT_SELECTED_TABLE_DATA);
vtkTable* outputTable = vtkTable::SafeDownCast(
outTableInfo->Get(vtkDataObject::DATA_OBJECT()));
int numProcesses = this->Controller->GetNumberOfProcesses();
//int myId = this->Controller->GetLocalProcessId();
// 1) leave the selected rows alone, since they don't make sense for multiple nodes
//
// 2) gather the selected data together
// for each column, make a new one and add it to a new table
vtkSmartPointer<vtkTable> gatheredTable = vtkSmartPointer<vtkTable>::New();
for (int i=0; i<outputTable->GetNumberOfColumns(); i++)
{
vtkAbstractArray* col = vtkArrayDownCast<vtkAbstractArray>(outputTable->GetColumn(i));
if (!col)
continue;
vtkIdType myLength = col->GetNumberOfTuples();
vtkIdType totalLength = 0;
std::vector<vtkIdType> recvLengths(numProcesses,0);
std::vector<vtkIdType> recvOffsets(numProcesses,0);
// gathers all of the array lengths together
comm->AllGather(&myLength, &recvLengths[0], 1);
// compute the displacements
vtkIdType typeSize = col->GetDataTypeSize();
for (int j=0; j<numProcesses; j++)
{
recvOffsets[j] = totalLength*typeSize;
totalLength += recvLengths[j];
recvLengths[j] *= typeSize;
}
// communicating this as a byte array :/
vtkAbstractArray* received = vtkAbstractArray::CreateArray(col->GetDataType());
received->SetNumberOfTuples(totalLength);
char* sendBuf = (char*) col->GetVoidPointer(0);
char* recvBuf = (char*) received->GetVoidPointer(0);
comm->AllGatherV(sendBuf, recvBuf, myLength*typeSize, &recvLengths[0], &recvOffsets[0]);
gatheredTable->AddColumn(received);
received->Delete();
}
outputTable->ShallowCopy(gatheredTable);
return 1;
}
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