[Mauiusers] nodeaccess policy - does it work on a job by job bases?

Sarah Mulholland smm at rincon.com
Thu Mar 26 10:09:19 MDT 2009


Thank you.  That is the solution.  I think I had the moab syntax for singlejob mixed with the maui scheduler.

-----Original Message-----
From: Niels Carl W. Hansen [mailto:recnh at cscaa.dk]
Sent: Wednesday, March 25, 2009 12:45 AM
To: Sarah Mulholland
Subject: Re: [Mauiusers] nodeaccess policy - does it work on a job by job bases?

hi Sarah

Try:
    qsub -W x="NACCESSPOLICY:SINGLEJOB" -l nodes=8:ppn=1 $myjob


/NCWH



On Tue, 24 Mar 2009, Sarah Mulholland wrote:

> According to the maui docs, the node access policy can be overridden on a job-by-job basis using the naccesspolicy (described at the link below).  I'm able to submit my job with a singlejob node access policy, but it appears that maui is letting other jobs onto the nodes.  Does this feature of maui work?
>
> http://www.clusterresources.com/products/maui/docs/5.3nodeaccess.shtml
>
> I have a cluster of 8 nodes with 2 processors each.  The jobnodematchpolicy is exactnode, so I get 8 processors on different nodes when I submitting with qsub
>
>   qsub -l nodes=8:ppn=1,naccesspolicy=singlejob $myjob
>
> Afterwards I submit another job with
>
>   qsub -l nodes=8:ppn=1 $mynextjob
>
> I expect the 2nd job to wait because all 8 nodes are running with a singlejob access policy.  Instead this job gets 1 processor per node and starts running right away.
>
> Am I misunderstanding the nodeaccess policy?
>
> Sarah
>
>
>
>

----------------------------------------------------------------------
Niels Carl W. Hansen
Centre for Scientific Computing in Aarhus   -   CSCAA
University of Aarhus                            E-mail: ncwh at cscaa.dk
Ny Munkegade, Bldg. 1520                        Tel:    +45 8942 3201
DK-8000 Aarhus C                                Mobile: +45 6020 2635
Danmark                                         Web:     www.cscaa.dk
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