Re: [Opaltoolkit-users] problem running parallel jobs with MPI

[Malcolm T. <mt...@wu...>]

Sriram,

Thanks for the response.

I'm not developing this interface myself, but from talking to the developers I 
take it we're currently using AppService.  Can you point me to some 
documentation for GenericServiceClient or some examples of it's use?

Thanks again,
Malcolm


On Wednesday 16 September 2009 04:55:31 pm Sriram Krishnan wrote:
> Hi Malcom,
>
> The num.procs in the opal.properties is the maximum number of
> processors available on the system. You can set the number of
> processors on a per application basis from the command-line (or via a
> SOAP call), as long as it is less than the num.procs specified in the
> opal.properties.
>
> Are you using the GenericServiceClient to launch your parallel jobs?
> If so, use the "-n" parameter to set the number of processors. You can
> also set the number of processors via the dashboard.
>
> Let us know if that works.
>
> Cheers,
> Sriram
>
> On Sep 16, 2009, at 3:29 PM, Malcolm Tobias wrote:
> > I've got a working Opal server and I'm now trying to configure it to
> > run
> > parallel jobs.  In my etc/opal.properties I have:
> >
> > # parallel parameters
> > num.procs=4
> > mpi.run=/export/apps/openmpi-1.3.3/bin/mpirun
> >
> > I verified that these values did find their way into tomcat:
> >
> > jakarta-tomcat-5.0.30/webapps/opal2/WEB-INF/classes/opal.properties
> >
> > but when we attempt to run parallel jobs, the command that gets
> > generated is:
> >
> > 2009-09-16 15:19:32,613 DEBUG
> > edu
> > .sdsc
> > .nbcr.opal.manager.DRMAAJobManager.launchJob(DRMAAJobManager.java:
> > 171) -
> > CMD: /export/apps/openmpi-1.3.3/bin/mpirun -machinefile $TMPDIR/
> > machines -np
> > 1 /export/apps/apbs_svn_20090915/bin/apbs 1ABF.in
> >
> > I know that it's picking up the <parallel>true</parallel> in the
> > service
> > configuration file since it's including the mpirun command, but why
> > isn't the
> > number of processors agreeing with 'num.procs'?
> >
> > Thanks for your help.
> >
> > Malcolm
> >
> > --
> > Malcolm Tobias
> > 314.362.1594
> >
> >
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-- 
Malcolm Tobias
314.362.1594