[torqueusers] cpu-time limit specified, but wall-time enforced

garrick at speculation.org garrick at speculation.org
Fri Jun 2 14:45:08 MDT 2006

On Fri, Jun 02, 2006 at 03:55:29PM -0400, Neelesh Arora alleged:
> Hi,
> We have torque-2.0.0p2 and maui-3.2.6p13 based setup. There are 2 
> execution queues, distinguished by different cpu-time limits. There is 
> one route queue which routes the jobs based on the requested cpu-time.
> The queue definitions have appropriate resources_max.cput and 
> resources_min.cput declarations. And the users are required to specify 
> -l cput=<time> option to qsub.
> The jobs get submitted to the right queues, based on the cput parameter 
> value. But then, Torque/Maui seem to be enforcing wall-time instead and 
> a job is killed if the resources_used.walltime exceeds Resource_List.cput !!
> For example, I submit a job with qsub -l cput=1:0:0 pbs-script. And the 
> job takes more than 1hr in wallclock time, while the cpu-time usage is 
> still less than 1hr. This job would be killed with a "MOAB_INFO:  job 
> exceeded wallclock limit" message.
> We have not specified any walltime parameters in queue/server 
> definitions or during job submission.
> While the job is running, qstat reports both cputime and walltime usage. 
> Whereas, checkjob only reports walltime usage:
> _________________
> qstat:
> Job Id: 37414
>     resources_used.cput = 00:00:00
>     resources_used.mem = 2568kb
>     resources_used.vmem = 9264kb
>     resources_used.walltime = 00:37:10
> checkjob:
> checking job 37414
> State: Running
> Creds:  user:narora  group:staff  class:medium  qos:DEFAULT
> WallTime: 00:37:48 of 1:00:00
> _________________
> where, clearly Maui has set the max allowed walltime to be the same as 
> the cput value I specified to qsub !!
> Can someone please suggest what's going wrong here?

Well that's an annoying maui bug!

Double check your maui config and disable the resource enforcement.

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