[torqueusers] Code seems to run slow when run with pbs script

Chris Samuel csamuel at vpac.org
Wed Nov 29 17:01:45 MST 2006

On Thursday 30 November 2006 10:53, Nick Anderson wrote:

> When running on a Cluster with 2.4Ghz cpus inside of a pbs script a single
> iteration takes approximatly 14 seconds. It dosnt matter how many nodes the
> job is run on. 2 - 64 gets the same times per iteration.
> But if we run manually with mpirun it takes about 1 tenth of a second.

Sounds like it's not running as an MPI code.

Which MPI version was the code built with ?

Can you post the PBS script for it ?

 Christopher Samuel - (03)9925 4751 - VPAC Deputy Systems Manager
 Victorian Partnership for Advanced Computing http://www.vpac.org/
 Bldg 91, 110 Victoria Street, Carlton South, VIC 3053, Australia

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