[mpich-discuss] multiple mpich2 jobs on a single node
Bryan Putnam
bfp at purdue.edu
Thu May 1 13:22:48 CDT 2008
On Thu, 1 May 2008, Rajeev Thakur wrote:
> In a PBS environment, you need not use MPD at all. You can simply use the
> mpiexec written by Pete Wyckoff: http://www.osc.edu/~pw/mpiexec/index.php
Hi Rajeev,
Yes we used to use that program when we used OpenPBS, but it doesn't work
with the latest PBSPro.
Bryan
>
> Rajeev
>
> > -----Original Message-----
> > From: owner-mpich-discuss at mcs.anl.gov
> > [mailto:owner-mpich-discuss at mcs.anl.gov] On Behalf Of Bryan Putnam
> > Sent: Thursday, May 01, 2008 12:40 PM
> > To: mpich-discuss at mcs.anl.gov
> > Subject: RE: [mpich-discuss] multiple mpich2 jobs on a single node
> >
> > On Thu, 1 May 2008, Rajeev Thakur wrote:
> >
> > > Can you try running them with a single mpdboot?
> > >
> > > Rajeev
> >
> > Rajeev,
> >
> > Yes, it does work correctly when I use only one mpdboot as
> > you describe.
> > However, this is within a PBS environment, and the user doesn't know
> > whether or not the daemon is already running.
> >
> > Bryan
> >
> >
> > >
> > > > -----Original Message-----
> > > > From: owner-mpich-discuss at mcs.anl.gov
> > > > [mailto:owner-mpich-discuss at mcs.anl.gov] On Behalf Of Bryan Putnam
> > > > Sent: Thursday, May 01, 2008 7:52 AM
> > > > To: mpich-discuss at mcs.anl.gov
> > > > Subject: [mpich-discuss] multiple mpich2 jobs on a single node
> > > >
> > > > Hi, perhaps this is an FAQ, but I can't seem to find it.
> > > >
> > > > I've noticed that if I have two mpich2 jobs running on for
> > > > example, the same 8-processor node, submitted as
> > > >
> > > > mpdboot
> > > > mpirun -np 4 ./a.out
> > > >
> > > >
> > > > mpdboot
> > > > mpirun -np 4 ./a.out2
> > > >
> > > >
> > > > then when one of the jobs completes, it kills all the mpd
> > > > processes along
> > > > with it, and the remaining job dies with message
> > > >
> > > > job aborted; reason = mpd disappeared
> > > >
> > > >
> > > > Is there an easy fix for this?
> > > >
> > > > Thanks,
> > > > Bryan
> > > >
> > > >
> > > > --
> > > > Bryan Putnam
> > > > Rosen Center for Advanced Computing, Purdue University
> > > > Young Hall (Rm. 519)
> > > > 302 Wood Street
> > > > West Lafayette, IN 47907-2108
> > > > Ph 765-496-8225 Fax 765-494-0566
> > > > bfp at purdue.edu
> > > > http://www.purdue.edu/itap
> > > >
> > > >
> > > >
> > > >
> > >
> > >
> >
> >
> >
> >
>
>
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