[torqueusers] Do I have to define the ncpus for a compute node?

Axel Kohlmeyer akohlmey at cmm.chem.upenn.edu
Fri Jan 13 09:18:27 MST 2012


On Fri, Jan 13, 2012 at 10:59 AM, Ryan Golhar
<ngsbioinformatics at gmail.com> wrote:
> Hi - I have a ROCKS cluster running and installed Torque.  I'm able to
> submit 1 core, 1 cpu jobs without problem.  I tried submitting a job that
> requested 4 cpus on 1 node using
>
> #PBS -l nodes=1:ppn=4
>
> in my job submission script.  When I submit the job however, I get the
> error:
>
> qsub: Job exceeds queue resource limits MSG=cannot locate feasible nodes
> (nodes file is empty or requested nodes exceed all systems)
>
> If I run anodes, I see:
>
> compute-0-0
>      state = free
>      np = 8
>      ntype = cluster
>      status =
> rectime=1326469800,varattr=,jobs=,state=free,netload=1720539412488,gres=,loadave=0.01,ncpus=8,physmem=16431248kb,availmem=17311704kb,totmem=17451364kb,idletime=339141,nusers=0,nsessions=?
> 15201,sessions=? 15201,uname=Linux compute-0-0.local 2.6.18-238.19.1.el5 #1
> SMP Fri Jul 15 07:31:24 EDT 2011 x86_64,opsys=linux
>      gpus = 0
>
>
> All my compute nodes have 8 cpus.  Do I need to tell Torque this?  I thought
> Torque could figure this out from np=8 or ncpus=8.

the error message says that the request exceeds the queue configuration.
that is being checked before it looks at any nodes. thus you probably have
to adjust the queue configuration.

axel.


>
> Ryan
>
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-- 
Dr. Axel Kohlmeyer    akohlmey at gmail.com
http://sites.google.com/site/akohlmey/

Institute for Computational Molecular Science
Temple University, Philadelphia PA, USA.


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