Newsgroups: comp.parallel.mpi
From: nucci@cac.psu.edu (Jeffrey J Nucciarone)
Subject: MPI on a CRAY J932 and SGI POWERChallenge
Keywords: MPI, CRAY, SGI, POWERChallenge
Organization: Penn State University
Date: 8 Apr 1996 19:11:31 GMT
Message-ID: <4kbod3$lt6@hearst.cac.psu.edu>

Hello.

I am running mpich 1.0.10 on a Cray J932/16 and am trying to split
an application between the multi-processor Cray and an SGI POWERChallenge.
MPI on the POWERChallenge is SGI's MPI version 1.0 (2/23/96).

When on the Cray, I cannot get MPI to run on the SGI -- I hacked up a version
of mpirun.ch_p4 to rsh the SGI and try to invoke mpirun on the SGI but this
method leaves no method for passing messages between the two systems as
they have no idea of each other's existance. 

I tried compiling a version of mpich for the POWERChallenge but the native SGI 
mpi conflicts with it.

From the SGI, if I try and invoke the SGI native mpirun command, it tries
to run /usr/bin/mpirun on the Cray.

Is there any way to get SGI's native MPI (or even a version of MPICH on the
SGI!!) to talk successfully with mpich on a Cray J932?

Thanks

  --Jeff

-- 
Jeff Nucciarone       nucci@cac.psu.edu        http://cac.psu.edu/~nucci    
  Research Programmer, Numerically Intensive Computing Group
  The Pennsylvania State University
                                 "Don't just do it........  do it right."

