[MPICH] about graphic

[llwaeva at 21cn.com]

Hi there,
  I am running MPICH2 under Linux and Windows. In Linux, it's easy to
make a parallel program to show a graph on each node with the help of
SDL(a graphing package) or other package. For instance, the following
code do the graphing task

  MPI_Init(&argc, &argv);
  MPI_Comm_rank(MPI_COMM_WORLD, &rank);

  if (rank!=0) setenv("DISPLAY", ":0.0", 1);

  /*
  Here, we call SDL to show something on the screen of each node
  */

  MPI_Finalize();

But for windows, the case becomes a little bit complicated. First of all,
I try to add "-localroot" while mpiexec my program, this parameter will
only allow the root node to open GUI locally but not remotely. Anyone
has idea for my problem?

Thanks in advance.