[GE users] PE config: allocation_rule

reuti reuti at staff.uni-marburg.de
Thu Apr 15 14:23:27 BST 2010


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Am 15.04.2010 um 14:37 schrieb aeszter:

> On Apr 14, 2010, at 11:54 , reuti wrote:
>> 
>> You can define a second PE with allocation_rule 4 and both PEs should be named like mpi8 and mpi4, then you can request mpi* (quotation marks can prevent expansion by the shell) as PE and it will use either of them. Unfortunately there is no order by a sequence number or so for PE, it will just try both and pick one of them.
> 
> OK, we'll do that. Maybe one could even use $pe_slots? This would not work for, say, 12-core jobs; but it should prevent 8-core jobs from using the mpi4 PE, thus spreading over two nodes.

You mean $pe_slots for the machines with 4 cores? This sould work fine then. You are just limited to 1, 2, 3, 4 and mutiple of 8 slots per job then.

-- Reuti


> 
> 
> Thanks for your reply!
> 
> A.
> -- 
> Ansgar Esztermann
> DV-Systemadministration
> Max-Planck-Institut für biophysikalische Chemie, Abteilung 105
> 
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