Information on using MPICH can be found in the
Installation and Users' Guide. There are
versions of this guide for each MPICH device; make sure that you read the
one the applies to your device. You can find out which device is installed by
running a simple MPI program with the option -mpiversion:
mpirun -np 1 a.out -mpiversionAll of the guides are available at http://www.mcs.anl.gov/mpi/mpich1/docs.html .