[torqueusers] Maui config for min memory but fast procs
Lippert, Kenneth B.
Kenneth.Lippert at alcoa.com
Wed Aug 13 13:56:22 MDT 2008
Let's say I have this situation:
nodeA 32 GB RAM fast proc
nodeB 8 GB RAM fast proc
nodeC 8 GB RAM slow proc
My initial maui configuration had NODEALLOCATIONPOLICY set to CPULOAD
which would put jobs on the machine with the most available CPU "power".
But obviously I don't want a 7GB job to run on nodeA and take up 32 GB
when it doesn't need it, blocking out a later 30GB job that does.
So I tried to set the policy to MINRESOURCE, but now the 7GB job is
going to run on slow nodeC when it could have run on the faster nodeB.
I am now trying
NODECFG[DEFAULT] PRIORITYF='5*CPROCS - LOAD - 0.01*AMEM"
NODEAVAILABILITYPOLICY UTILIZED:MEM DEDICATED:PROC
but the results are the same as my second case above (runs on slow
In English, i want the job to run on the fastest available, least loaded
machine, without wasting available memory.
I am having a hard time getting my head around the maui settings. Any
help would be greatly appreciated.
Computation & Simulation Modeling,
Product Manufacturing Division
Alcoa Technical Center.
Email: kenneth.lippert at alcoa.com
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