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

christophe.caron at jouy.inra.fr christophe.caron at jouy.inra.fr
Thu Feb 22 21:06:52 GMT 2007


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This solution works really fine for me. Now, i remember this syntax 
[@hgrp=x] !!

Thanks again!

cc


> christophe.caron at jouy.inra.fr wrote:
>> 
>> 
>> 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
>> 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
>> 
>> 
>> But the node could acccept 3 jobs from long.q and no more for short.q
>> 
>> Any idea ?
>
> Instead of modifying complex_values, try this:
>
> In the queue config for long.q should be a setting called 'slots'.  Set it to 
> something like this:
>
> slots                 2,[@quad=4]
>
>
> By default, long.q has 2 slots.  However, if the host is in the '@quad' 
> hostgroup, then it'll have 4 slots.
>
>
> Thanks,
>
>
> Sean
>
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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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