Method ExchangeMergeSubGrids

Filters/ParallelGeometry/vtkPDistributedDataFilter.cxx:1198–1242

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//------------------------------------------------------------------------------
vtkUnstructuredGrid* vtkPDistributedDataFilter::ExchangeMergeSubGrids(vtkIdList** cellIds,
  int deleteCellIds, vtkDataSet* myGrid, int deleteMyGrid, int filterOutDuplicateCells,
  int ghostCellFlag, int tag)
{
  TimeLog timer("ExchangeMergeSubGrids(1)", this->Timing);
  (void)timer;

  int nprocs = this->NumProcesses;

  int* numLists = new int[nprocs];

  vtkIdList*** listOfLists = new vtkIdList**[nprocs];

  for (int i = 0; i < nprocs; i++)
  {
    if (cellIds[i] == nullptr)
    {
      numLists[i] = 0;
    }
    else
    {
      numLists[i] = 1;
    }

    listOfLists[i] = &cellIds[i];
  }

  vtkUnstructuredGrid* grid = nullptr;

  if (this->UseMinimalMemory)
  {
    grid = this->ExchangeMergeSubGridsLean(listOfLists, numLists, deleteCellIds, myGrid,
      deleteMyGrid, filterOutDuplicateCells, ghostCellFlag, tag);
  }
  else
  {
    grid = this->ExchangeMergeSubGridsFast(listOfLists, numLists, deleteCellIds, myGrid,
      deleteMyGrid, filterOutDuplicateCells, ghostCellFlag, tag);
  }

  delete[] numLists;
  delete[] listOfLists;

  return grid;
}

//------------------------------------------------------------------------------
vtkUnstructuredGrid* vtkPDistributedDataFilter::ExchangeMergeSubGrids(vtkIdList*** cellIds,