[torqueusers] Re: Epilogue script

Martin Siegert siegert at sfu.ca
Tue Aug 29 11:30:48 MDT 2006


On Tue, Aug 29, 2006 at 06:09:42PM +0100, David Golden wrote:
> On Tuesday 29 August 2006 17:37, Glen Beane wrote:
> > and once you use mpiexec,  you have no real need to clean things up
> > via the epilogue  :)
> 
> Exactly. :-)

Not really. Every and each MPI-2 compliant distribution will come 
with a "mpiexec" simply because it is recommended by the MPI-2 standard.
They will all behave differently with respect to how they spawn MPI
processes. Therefore, do not assume that mpiexec equals OSC's mpiexec
implementation. There are good reasons for sites not to use OSC's
version, e.g., same mpiexec syntax for interactive MPI programs
and for jobs submitted through torque.

Thus torque should be independent of the mpiexec implementation and
if there is a way to improve torque's behaviour with respect to
cleaning up after MPI jobs along the lines Dave indicated this would
be a huge benefit. The sites that do not want to use that feature
do not have to.

Cheers,
Martin

-- 
Martin Siegert
Head, HPC at SFU
WestGrid Site Lead
Academic Computing Services                phone: (604) 291-4691
Simon Fraser University                    fax:   (604) 291-4242
Burnaby, British Columbia                  email: siegert at sfu.ca
Canada  V5A 1S6


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