Method FillDataTypes

IO/ParallelXML/vtkXMLPUniformGridAMRWriter.cxx:65–111

------------------------------------------------------------------------------

//------------------------------------------------------------------------------
void vtkXMLPUniformGridAMRWriter::FillDataTypes(vtkCompositeDataSet* cdInput)
{
  this->Superclass::FillDataTypes(cdInput);

  if (!this->Controller)
  {
    return;
  }

  int myid = this->Controller->GetLocalProcessId();
  int numProcs = this->Controller->GetNumberOfProcesses();
  unsigned int numLeafNodes = this->GetNumberOfDataTypes();
  int* myDataTypes = this->GetDataTypesPointer();
  if (numProcs == 1 || numLeafNodes == 0)
  {
    return;
  }

  if (myid == 0)
  {
    // Collect information about data-types from all satellites and the
    // "combine" the information. Only the root-node needs to have the
    // combined information, since only the root-node writes the XML.
    int* gathered_data_types = new int[numLeafNodes * numProcs];
    for (unsigned int cc = 0; cc < numProcs * numLeafNodes; cc++)
    {
      gathered_data_types[cc] = -1;
    }
    this->Controller->Gather(myDataTypes, gathered_data_types, numLeafNodes, 0);

    for (int procNo = 1; procNo < numProcs; procNo++)
    {
      for (unsigned int pieceNo = 0; pieceNo < numLeafNodes; pieceNo++)
      {
        if (myDataTypes[pieceNo] == -1 && gathered_data_types[procNo * numLeafNodes + pieceNo] >= 0)
        {
          myDataTypes[pieceNo] = gathered_data_types[procNo * numLeafNodes + pieceNo];
        }
      }
    }
    delete[] gathered_data_types;
  }
  else
  {
    this->Controller->Gather(myDataTypes, nullptr, numLeafNodes, 0);
  }
}
VTK_ABI_NAMESPACE_END