[Beowulf] cluster sharing

Chris Samuel csamuel at vpac.org
Thu Dec 10 19:28:05 EST 2009


----- "amjad ali" <amjad11 at gmail.com> wrote:

> How should I make a reasonable performance measurement
> in such a case?

I would suggest that you request entire nodes
through the batch scheduler. So if you are using
Torque (PBS) for instance and wanted to run an
80 CPU job on dual socket quad core nodes you
would request:

#PBS -l nodes=10:ppn=8

The scheduler would then only allocate you nodes
that were not used by other people.

All the best,
Chris
-- 
Christopher Samuel - (03) 9925 4751 - Systems Manager
 The Victorian Partnership for Advanced Computing
 P.O. Box 201, Carlton South, VIC 3053, Australia
VPAC is a not-for-profit Registered Research Agency
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