ParaView-5.0.1: Added the source-tree to ThirdParty-dev and patched as described in the README file

Resolves bug-report http://bugs.openfoam.org/view.php?id=2098

ParaView-5.0.1/Examples/Catalyst/MPISubCommunicatorExample/FEDriver.cxx

@@ -0,0 +1,68 @@
+#include "FEDataStructures.h"
+#include <mpi.h>
+#include <iostream>
+
+#include "FEAdaptor.h"
+
+void SubCommunicatorDriver(int argc, char* argv[], MPI_Comm* handle)
+{
+  Grid grid;
+  unsigned int numPoints[3] = {70, 60, 44};
+  double spacing[3] = {1, 1.1, 1.3};
+  grid.Initialize(numPoints, spacing);
+  Attributes attributes;
+  attributes.Initialize(&grid);
+
+  FEAdaptor::Initialize(argc, argv, handle);
+  unsigned int numberOfTimeSteps = 100;
+  for(unsigned int timeStep=0;timeStep<numberOfTimeSteps;timeStep++)
+    {
+    // use a time step length of 0.1
+    double time = timeStep * 0.1;
+    attributes.UpdateFields(time);
+    FEAdaptor::CoProcess(grid, attributes, time, timeStep, timeStep == numberOfTimeSteps-1);
+    }
+
+  FEAdaptor::Finalize();
+}
+
+int main(int argc, char* argv[])
+{
+  MPI_Init(&argc, &argv);
+  int myrank, numprocs;
+  MPI_Comm_rank(MPI_COMM_WORLD, &myrank);
+  MPI_Comm_size(MPI_COMM_WORLD, &numprocs);
+
+  MPI_Group orig_group;
+  MPI_Comm_group(MPI_COMM_WORLD, &orig_group);
+
+  std::vector<int> subranks;
+  for(int i=0;i<numprocs/2;i++)
+    subranks.push_back(i);
+  if(subranks.empty())
+    {
+    subranks.push_back(0);
+    }
+  MPI_Group subgroup;
+  MPI_Group_incl(orig_group, subranks.size(), &(subranks[0]), &subgroup);
+  MPI_Comm subcommunicator;
+  MPI_Comm_create(MPI_COMM_WORLD, subgroup, &subcommunicator);
+
+  if (myrank < static_cast<int>(subranks.size()))
+    {
+    int newrank;
+    MPI_Comm_rank(MPI_COMM_WORLD, &newrank);
+    std::cout << "got a rank\n";
+
+    SubCommunicatorDriver(argc, argv, &subcommunicator);
+    std::cout << "Process " << myrank << " did some co-processing.\n";
+    }
+  else
+    {
+    std::cout << "Process " << myrank << " did not do any co-processing.\n";
+    }
+
+  MPI_Finalize();
+
+  return 0;
+}