MPICH2 test programs, by Douglas Eadline, 01/24/06
deadline@basement-supercomputing.com
Create/Edit file "hosts" with machine list.
Load the MPICH2 tcp module:

  $ module load mpich/3.1.3/gnu4

If you want to use MPICH2 with Open-MX then use:

  $ module load mpich-omx/3.1.3/gnu4

Building and running programs:
------------------------------

Build C version of pi program:

  $ mpicc -o cpi cpi.c

Run C pi program:

  $ mpiexec  -n 8 -f hosts ./cpi

Build FORTRAN version of pi program:

  $ mpif77  -o fpi fpi.f

Run FORTRAN pi program:

  $ mpiexec  ssh  -n 8 -f hosts ./fpi

If you use the open-mx version make sure the open-mx
service is running on the nodes. To start open-mx (as root)

  # service open-mx start
  # pdsh service open-mx start