[mpich-discuss] unable to run MPMD with mpirun.

[Darius Buntinas]

MPICH 1.2.7 is very old and unsupported.  Please use the latest stable version: MPICH2 1.4.1p1.

http://www.mcs.anl.gov/research/projects/mpich2/downloads/index.php?s=downloads

Your linux distribution may have a binary package for MPICH2.  Try installing "mpich2-devel" and "mpich2" using yum or apt-get.

What you're trying to do does work with mpiexec in modern versions of MPICH2.

-d


On Jan 18, 2012, at 1:00 PM, Donald Stark wrote:

> I'm attempting to run a MPMD coupled model on my Linux box with PGI
> V11-7 and mpich 1.2.7. In an attempt to diagnose what is going on, I've
> created a toy problem that doesn't communicate between processors. If I
> launch the job alone it works as expected. If I attempt to launch the
> two executables as an mpmd job using the command:
> 
> mpirun -machinefile ./mach -np 1 ./mpmdA.exe : -machinefile
> ./mach -np 1 ./mpmdB.exe
> 
> only the first executable appears to launch. Thus I only get output from
> the first executable.
> 
> Rank of A is:            0  out of             1
> 
> If I switch the order of the arguments, such as
> 
> mpirun -machinefile ./mach -np 1 ./mpmdB.exe : -machinefile
> ./mach -np 1 ./mpmdA.exe
> 
> only the other executable seems to run.
> 
> Any thought on what might be the issue.
> -- 
> Donald Stark
> NCAR, RAL DTC
> Foot Hills Lab 3, Rm. 1042,
> Boulder CO 80307-3000 USA
> 
> Phone: (303)497-2472
> Email: stark at ucar.edu
> Web: www.rap.ucar.edu/~stark
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