[GE users] reservation ?

Reuti reuti at staff.uni-marburg.de
Tue May 30 11:02:05 BST 2006


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Hi,

Am 30.05.2006 um 11:54 schrieb Rui Ramos:

>
> Hi there,
>
>  Just a dumb question i guess. But how does the N1GE deals with  
> advance researvation?
>  I'm making some tests and if i have queue that's full and have  
> this list of jobs waiting
>
>  jobA    4 slots
>  jobB    1 slot
>  jobB.1  1 slot
>  jobB.2  1 slot
>  ...
>
>  Let's say that the jobs of type B are very quick and a user  
> submits 2000 of them. On the other hand, we have a job that  
> requires 4 slots. But each time we have a free slot it starts a job  
> of type B. following this the jobA only executes when all jobB are  
> finished. Unless the GridEngine can make some kind of slot  
> reservation for jobs with higher priority ? Is this native in the  
> N1GE scheduler, do we need to set it up ? or advance reservation is  
> just not possible ?
>
>                     Apreciate any lights on the subject, thanks
>

what you need  is "resource reservation". Just turn on the  
reservation in the scheduler "qconf -msconf" by setting  
"max_reservation 20" or an appropriate value and submit the parallel  
job with "-R y".

Cheers - Reuti


> -- 
> ============================================
>  Rui Manuel dos Santos Ramos
>
>  Instituto de Recursos e Iniciativas Comuns
>  Pra?a Gomes Teixeira, 4099-002 Porto, Portugal
>
>  phone : +351 223 401 571
>  e-mail: rramos[at]iric.up.pt
>     web: http://ruiramos.homeip.net
> ============================================
>

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