[Mauiusers] Having problems scheduling jobs with PPN specification on a cluster.

Bas van der Vlies basv at sara.nl
Thu Jan 28 01:54:14 MST 2010


Dear Jon,

On 27-01-10 23:15, Jonathan K Shelley wrote:
> Maui Version: 3.2.6p21
> Torque Version: 2.3.6
>
> I have a cluster with 4 compute nodes. 1 node has 16 cores and the other
> 3 each have 24 cores. One of the nodes is down for maintenance. So I
> have 64 cores available to run jobs.
> When I submit this line
>
> qsub -I -l nodes=4:ppn=6
>
> I get the following error:
> 01/27 13:41:39 INFO: 64 feasible tasks found for job 384:0 in partition
> DEFAULT (24 Needed)
> 01/27 13:41:39 INFO: inadequate feasible nodes found for job 384:0 in
> partition DEFAULT (3 < 4)
> 01/27 13:41:39 ALERT: job 384 cannot run in any partition
> 01/27 13:41:39 ALERT: cannot create new reservation for job 384
> (shape[1] 24)
> 01/27 13:41:39 ALERT: cannot create new reservation for job 384
> 01/27 13:41:39 MJobSetHold(384,16,1:00:00,NoResources,cannot create
> reservation for job '384' (intital reservation attempt)
>
  In your first request to ask for 4 nodes and there are only 3 nodes 
available one is down. So maui won't start that job, which is correct. The 
line
{{{
 > 01/27 13:41:39 INFO: inadequate feasible nodes found for job 384:0 in
 > partition DEFAULT (3 < 4)
}}}


-- 
********************************************************************
*  Bas van der Vlies                    e-mail: basv at sara.nl       *
*  SARA - Academic Computing Services   Amsterdam, The Netherlands *
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