[torqueusers] cpusets memory nodes?

Kenneth Yoshimoto kenneth at sdsc.edu
Tue Oct 18 13:32:24 MDT 2011


  Hmmm, in that scenario, I would want it to look
like 3 nodes, pbsnodes -a reporting 3 nodes,
but with cpuset enforcement within each node.

On Tue, 18 Oct 2011, Troy Baer wrote:

> Date: Tue, 18 Oct 2011 15:28:13 -0400
> From: Troy Baer <tbaer at utk.edu>
> To: Kenneth Yoshimoto <kenneth at sdsc.edu>,
>     Torque Users Mailing List <torqueusers at supercluster.org>
> Subject: Re: [torqueusers] cpusets memory nodes?
> 
> On Tue, 2011-10-18 at 12:17 -0700, Kenneth Yoshimoto wrote:
>>   Do you know if I can have multiple NUMA nodes configured
>> in Torque, or is it only taking a single MOM in that case?
>
> Each host will run a single pbs_mom daemon that will report itself as
> multiple virtual nodes, one per NUMA node.  At one point, I had a test
> system configured with three hosts, each of which had 4 NUMA nodes; when
> you ran pbsnodes -a on it, it looked like 12 nodes.  The scheduler has
> to know how to glue these virtual nodes back together, which IIRC Moab
> does with its nodeset functionality.
>
> 	--Troy
>
>


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