[MPICH] MPICH2 suspend

[Jason Crane]

Hi,

The MPICH2 user's guide documentation (section 7.1) indicates that it is
possible to suspend and continue MPICH2 jobs, at least under mpd.  I'm
interested in trying this under smpd process management from Sun's Grid
Engine and would like to know if there are any limitations or
requirements for job suspension to work correctly without issuing a
ctrl-z to the mpiexec process.  In particular, is it possible to suspend
the processes on a single arbitrary node within the job, or is it
necessary to signal all processes in the job simultaneously?

thanks for any help,
-Jason