[GE users] Slots limits

reuti reuti at staff.uni-marburg.de
Thu Apr 15 14:30:26 BST 2010


Hi,

Am 15.04.2010 um 15:05 schrieb pmuller:

> In queue_conf(5) :
> 
>    slots
>        The maximum number of concurrently executing jobs allowed in the queue.  Type is number, valid values are 0 to 9999999.
> 
> Does it apply to the cluster queue or to each queue instance ?

it's per queue instance. To limit it in total across several queues you can either define slots=8 in the complex_list of the exechost (qconf -me <exechost>) or setup an RQS to limit it to 8 per node "limit hosts {*} to slots=8".

-- Reuti


> Philippe Muller
> 
> 
> On Thu, Apr 15, 2010 at 2:35 PM, Philippe Muller <philippe.muller at gmail.com> wrote:
> Hi SGE users,
> 
> Despite my documentation reading, I'm still not sure about how slots work.
> 
> I have :
> - 18 execution hosts ; divided into hostgroups (@foo contains 3 exec hosts and @bar contains 15 exec hosts)
> - 3 queues : prod.q has access to all exec hosts ; foo.q has access to @bar exec hosts and bar.q has access to @bar exec hosts (foo.q and bar.q are subordinate to prod.q)
> 
> I'd like to limit the slot allocation to 8 slots per exec host.
> How do I define the slots limits ? On each queue using the slots parameter ? On each exec host using the slots complex ?
> 
> Could someone give me a clear explanation of how to manage slots on queues/execution hosts ?
> 
> Thanks for your help!
> 
> Philippe Muller
>

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