[GE users] Scheduler tuning

rayson rayrayson at gmail.com
Wed Nov 19 07:26:52 GMT 2008


I think you can play with the "allocation_rule" in your PE setting,
esp. the "$fill_up" flag:

http://gridengine.sunsource.net/nonav/source/browse/~checkout~/gridengine/doc/htmlman/htmlman5/sge_pe.html

Rayson



On 11/18/08, Robert Healey <healer at rpi.edu> wrote:
> Hello.
>
> I'm currently running Grid Engine across a 1032 processor/129 node
> cluster.  Most of my jobs submitted are parallel MPI jobs, with 8-208
> slots requested/job.  I've been finding that even with 3-4 idle nodes,
> an 8 slot job will be split among 2-3 nodes when the ideal in my
> circumstances is to run all 8 slots on a single 8 core node.  I've
> defined all the nodes as having 8 slots, and am looking for things in
> the scheduler config to tweak to better schedule the CPU time.
>
> Thank you.
> --
> Bob Healey
> Systems Administrator
> Physics Department, RPI
> healer at rpi.edu
>
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