[GE users] Resource Reservation Question

matbradford matthew.bradford at eds.com
Tue Feb 3 13:03:23 GMT 2009


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Roland,

Thanks for the idea. I gave it a go, by setting the job requesting reservation to 600seconds, but still no mention of RESERVING in the schedule file.

Cheers,

Mat

>-----Original Message-----
>From: Roland.Dittel at sun.com [mailto:Roland.Dittel at sun.com]
>Sent: 03 February 2009 12:16
>To: users at gridengine.sunsource.net
>Subject: Re: [GE users] Resource Reservation Question
>
>Brad,
>
>since 6.2 the default_duration is set to INFINITY in the scheduler
>config. This means the scheduler assumes all jobs not requesting a
>runtime limit will run infinity and a queue instance with such a job
>will not be considered for reservation. This might be the reason why you
>don't see any reservations. Please tweak the default_duration or submit
>your jobs with '-l h_rt' and see if your job gets a reservation.
>
>Best regards
>Roland
>
>matbradford wrote:
>> Does anybody know of any issues with using Resource Reservation on a
>> large (>200 nodes) cluster, or with SGE6.2?
>>
>> We are using SGE 6.2, scheduling cycle is set to 60s, the max
>> reservation is set to 10, monitoring is on, and there is a single
>queue
>> for accepting parallel jobs. When I submit a parallel job with ??R y?
>> and push the job to the top of the pending queue, I cannot see any
>> ?RESERVING? messages in the schedule file. On another small cluster
>> using SGE6.0, I can see these ?RESERVING? messages.
>>
>> Any thoughts would be much appreciated.
>>
>> Cheers,
>>
>> Mat Bradford
>>
>
>
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