[Moabusers] Re: [torquedev] Re: [torqueusers] Allocating resources by CPUs

[Chris Samuel]

On Wed, 21 Mar 2007, Joshua Bernstein wrote:

> I'm not sure I understand the difference...

Disclaimer:  we do not set JOBNODEMATCHPOLICY EXACTNODE, so this is based upon 
others reports and my hazy memory of what it used to be like for us with 
Maui.

When "JOBNODEMATCHPOLICY EXACTNODE" is set nodes=n is treated as nodes=n:ppn=1 
(see above disclaimer), rather than n CPUs anywhere.

The problem is that if these people then remove "JOBNODEMATCHPOLICY EXACTNODE" 
from their scheduler config they can no longer ask for nodes=n:ppn=1 and rely 
on getting that (for whatever it is that needs it), they may get n/2 with 
ppn=2 instead, or some other combination that fits.

cheers!
Chris
-- 
 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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