[mpich-discuss] mpd and login node

[Rajeev Thakur]

Use the "-1" option to mpiexec to prevent the first process from being run
on the local node.

Rajeev

> -----Original Message-----
> From: mpich-discuss-bounces at mcs.anl.gov 
> [mailto:mpich-discuss-bounces at mcs.anl.gov] On Behalf Of Stephen Siegel
> Sent: Friday, February 13, 2009 7:21 PM
> To: mpich-discuss at mcs.anl.gov
> Subject: Re: [mpich-discuss] mpd and login node
> 
> No queuing system.   Each user just runs mpd, and has a machine file  
> that lists the nodes in their home directory.   They are supposed to  
> terminate the mpd ring when they are done.   We are not too 
> concerned  
> with overloading---this is just being used by an introductory   
> parallel programming class.  A queuing system would probably 
> be a good idea though.  All the machines are running linux.
> 
> On Feb 13, 2009, at 8:14 PM, Reuti wrote:
> 
> > Am 14.02.2009 um 02:06 schrieb Stephen Siegel:
> >
> >> I am running mpich2 with mpd on a small cluster.   We have a  
> >> separate logon node which users will log on to, compile, and  
> >> execute programs using mpiexec.   We want to configure mpd 
> so that  
> >> it will distribute the processes over the nodes of the cluster,  
> >> excluding the logon node.   For some reason we could not 
> figure out  
> >> how to do this----the logon node itself ends up getting 
> some of the  
> >> processes.   Does anyone know how to do this?  Thanks.
> >
> > How are you distributing other jobs right now and avoid 
> overloading of 
> > certain machines - you have a queuing system like SUN Grid Engine?
> >
> > -- Reuti
> 
>