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Subject: Re: [OMPI users] Error on running large number of processes
From: Jeff Squyres (jsquyres_at_[hidden])
Date: 2007-11-15 10:01:12


My guess is that this is similar to the last post: you are
oversubscribing the nodes so heavily that the OS is running out of
some resources (perhaps regular or registered memory?) such that Open
MPI is unable to setup its network transport layers properly.

On Nov 15, 2007, at 6:35 AM, Clement Kam Man Chu wrote:

> Hi,
>
> I am using openmpi 1.2.3 under ia64 machine and uses pbs job
> scheduler. I can successfully run 100 processes on 16 cpus, but I got
> an error If run 200 processes on the same number of cpus. The error
> is :
>
> PML add procs failed
> --> Returned "Temporarily out of resource" (-3) instead of
> "Success" (0)
>
>
> Please help.
>
> Regards,
> Clement
>
> --
> Clement Kam Man Chu
> Research Assistant
> Faculty of Information Technology
> Monash University, Caulfield Campus
> Ph: 61 3 9903 2355
>
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-- 
Jeff Squyres
Cisco Systems