[torqueusers] problems on running mpiexec with Torque-2.1.1

Garrick Staples garrick at usc.edu
Tue May 13 14:17:59 MDT 2008

Running MPI jobs in torque has been discussed many many times.  Please see the
mailing list archives.

When you run mpdboot outside of torque, then mpirun inside of the job has no
idea which nodes to use.

One solution is to run mpdboot inside of the job.
   mpboot -f $PBS_NODEFILE
   mpirun ...

The other (better) solution is to use mpiexec from OSC
http://www.osc.edu/~pw/mpiexec/.  It uses torque's built-in TM interface to
launch and clean up the jobs.

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