[GE users] Mixed 2 and 4 slots with 2 queues

Reuti reuti at staff.uni-marburg.de
Thu Feb 22 20:37:15 GMT 2007


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Hi,

Am 22.02.2007 um 21:01 schrieb christophe.caron at jouy.inra.fr:

>
>
> Hello
>
> We have 2 queues : long.q (normal jobs) and short.q (small jobs <  
> 4h00)
>
> We have 20 nodes with 2 CPU (@xeon3.2-x86_64) and 10 nodes with 4  
> CPUs(@dualcore-2.33-x86_64).
>
>
> The idea is to have a short.q with more priority (nice --) to bypass
> jobs which runs on nodes by using long.q
>
> I would to run n+1 (max) jobs on each node where n is equal to the  
> number of CPUs.
>
> long.q => slots                 4

slots                 4,[@xeon3.2-x86_64=2]

should do it.


> short.q=> slots                 1
>
> But in this case the nodes 2 CPU runs 5 jobs in some cases.
>
> I tried to put a complex_values on each 2 Cpus jobs:
> # qconf -se n40
> complex_values        slots=3

This is not necessary, as it would limit the number of used slots as  
you already noticed on the 4 CPU nodes.

-- Reuti


>
> But the node could acccept 3 jobs from long.q and no more for short.q
>
> Any idea ?
>
> Thanks
>
> cc
>
>
>
>
> ********************************************************************** 
> ****
> Christophe Caron - INRA 	    | Tél: (+33) 013465 2888
> Mathematique, Informatique et Genome| Fax: (+33) 013465 2901
> Domaine de Vilvert 		    | Email: christophe.caron at jouy.inra.fr
> F-78350 Jouy-en-Josas		    | http://migale.jouy.inra.fr/
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