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Subject: Re: [OMPI users] Open MPI program cannot complete
From: Jack Bryan (dtustudy68_at_[hidden])
Date: 2010-10-25 13:49:18


thanks
I use qsub -I nsga2_job.sh qsub: waiting for job 48270.clusterName to start
By qstat I found the job name is none and no results show up.
No shell prompt appear, the command line is hang there , no response.
Any help is appreciated.
Thanks
Jack
Oct. 25 2010
> From: jsquyres_at_[hidden]
> Date: Mon, 25 Oct 2010 13:39:30 -0400
> To: users_at_[hidden]
> Subject: Re: [OMPI users] Open MPI program cannot complete
>
> Can you use the interactive mode of PBS to get 5 cores on 1 node? IIRC, "qsub -I ..." ?
>
> Then you get a shell prompt with your allocated cores and can run stuff interactively. I don't know if your site allows this, but interactive debugging here might be *significantly* easier than try to automate some debugging.
>
>
> On Oct 25, 2010, at 1:35 PM, Jack Bryan wrote:
>
> > thanks
> >
> > I have to use #PBS to submit any jobs in my cluster.
> > I cannot use command line to hang a job on my cluster.
> >
> > this is my script:
> > --------------------------------------
> > #!/bin/bash
> > #PBS -N jobname
> > #PBS -l walltime=00:08:00,nodes=1
> > #PBS -q queuename
> > COMMAND=/mypath/myprog
> > NCORES=5
> >
> > cd $PBS_O_WORKDIR
> > NODES=`cat $PBS_NODEFILE | wc -l`
> > NPROC=$(( $NCORES * $NODES ))
> >
> > mpirun -np $NPROC --mca btl self,sm,openib $COMMAND
> >
> > -------------------------------------------
> >
> > Where should I put the (gdb --batch -ex 'bt full' -ex 'info reg' -pid ZOMBIE_PID) in the script ?
> > And how to get ZOMBIE_PID from the script ?
> >
> > Any help is appreciated.
> >
> > thanks
> >
> > Oct. 25 2010
> >
> > Date: Mon, 25 Oct 2010 19:24:35 +0200
> > From: jed_at_[hidden]
> > To: users_at_[hidden]
> > Subject: Re: [OMPI users] Open MPI program cannot complete
> >
> > On Mon, Oct 25, 2010 at 19:07, Jack Bryan <dtustudy68_at_[hidden]> wrote:
> > I need to use #PBS parallel job script to submit a job on MPI cluster.
> >
> > Is it not possible to reproduce locally? Most clusters have a way to submit an interactive job (which would let you start this thing and then inspect individual processes). Ashley's Padb suggestion will certainly be better in a non-interactive environment.
> >
> > Where should I put the (gdb --batch -ex 'bt full' -ex 'info reg' -pid ZOMBIE_PID) in the script ?
> >
> > Is control returning to your script after rank 0 has exited? In that case, you can just put this on the next line.
> >
> > How to get the ZOMBIE_PID ?
> >
> > "ps" from the command line, or getpid() from C code.
> >
> > Jed
> >
> > _______________________________________________ users mailing list users_at_[hidden] http://www.open-mpi.org/mailman/listinfo.cgi/users
> > _______________________________________________
> > users mailing list
> > users_at_[hidden]
> > http://www.open-mpi.org/mailman/listinfo.cgi/users
>
>
> --
> Jeff Squyres
> jsquyres_at_[hidden]
> For corporate legal information go to:
> http://www.cisco.com/web/about/doing_business/legal/cri/
>
>
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