[Mauiusers] 1 CPU jobs

Leandro leotavaneiro at gmail.com
Fri Mar 28 11:42:59 MDT 2008


Thank you for your help. Thats have done the trick...

I think I missed it on the documentation.. :-)

Regards,

On Thu, Mar 27, 2008 at 1:38 PM, Bas van der Vlies <basv at sara.nl> wrote:

> Leandro wrote:
> > Sorry for the cross post and for not searching for that on the lists
> > archives, but I'm really in trouble....
> >
> > I have some clusters with 2 or 4 cores per node and for some
> > applications, which uses OpenMP, I need only to allocate 1 core per node
> > to run and the application forks to the other cores.
> >
> > With my current configuration, it works for one job. But, when a second
> > job for the same application is submitted, Torque/Maui allocate the same
> > nodes to this job, because there are free CPUs on this nodes!
> >
> > But, as the process forks and runs on all CPUs, what I need is mark the
> > nodes as used when the nodes have a job allocated to them. It was
> > working this way when I was using FIFO as the scheduler, but with maui,
> > this behavior changed.
> >
> > In Maui, I'm using the parameter "JOBNODEMATCHPOLICY    EXACTNODE" to
> > get it more close to what is described on qsub command line. In this
> > case, I tried with qsub -l nodes=X:ppn=1 and -l nodes=X,tpn=1 and none
> > give me the results I need. I know maui interprets this commands on his
> > own way, but maybe there's a clean way to do that....
> >
> > If someone could point me to the right direction, will be great.
> >
> Set:
>  NODEACCESSPOLICY      SINGLEJOB
>
> This parameter only allows one job per node. Is this what you want to
> obtain?
>
> Regards
>
> > Thanks everyone,
> >
> > --
> > Leandro Tavares Carneiro
> > Systems Engineer - Linux Specialist
> >
>
>
> --
> --
> ********************************************************************
> *                                                                  *
> *  Bas van der Vlies                     e-mail: basv at sara.nl      *
> *  SARA - Academic Computing Services    phone:  +31 20 592 8012   *
> *  Kruislaan 415                         fax:    +31 20 6683167    *
> *  1098 SJ Amsterdam                                               *
> *                                                                  *
> ********************************************************************
>



-- 
Leandro Tavares Carneiro
Systems Engineer - Linux Specialist
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