[mpich-discuss] multiple mpich2 jobs on a single node

[Bryan Putnam]

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
> > 
> > 
> > 
> > 
> 
>