[GE users] Resource Reservation Question

roland roland.dittel at sun.com
Wed Feb 4 12:32:19 GMT 2009


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Mat,

matbradford wrote:
> Roland,
> 
> The jobs currently running were all submitted with a default duration set at 480:0:0 which I think is 480 hours. Should the scheduler be able to handle this?

Yes, the scheduler should be able to handle 480 hours. Is it correct 
that you have a default_duration of 480:0:0 in your sched_config(5) and 
your jobs are not submitted with "-l h_rt"? If that's the case you might 
run into IZ 2896 which I found just a few days ago. The workaround is to 
either submit your jobs with "-l h_rt" or configure a runtime limit in 
your queue_conf(5). However the runtime limit is not used for jobs 
already running, just for the jobs that will be scheduled after you've 
set the limit.

Best regards
Roland

> 
> Cheers,
> 
> Mat
> 
>> -----Original Message-----
>> From: Roland.Dittel at sun.com [mailto:Roland.Dittel at sun.com]
>> Sent: 03 February 2009 14:34
>> To: users at gridengine.sunsource.net
>> Subject: Re: [GE users] Resource Reservation Question
>>
>> Mat,
>>
>> matbradford wrote:
>>> 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.
>>
>> The job requesting the reservation is one part, the second are the jobs
>> currently running. If these jobs do not have a h_rt request and your
>> default duration is INFINITY the resources used by these jobs are
>> blocked for further reservations. You have to set the default_duration
>> also to get a reservation.
>>
>> Best regards
>> Roland
>>
>>
>>> 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
>>>>>
>>>> --
>>>> - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
>>>> Roland Dittel               Tel: +49 (0)941 3075-275 (x60275)
>>>> Software Engineering        Fax: +49 (0)941 3075-222 (x60222)
>>>> Sun Microsystems GmbH
>>>> Dr.-Leo-Ritter-Str. 7       mailto:roland.dittel at sun.com
>>>> D-93049 Regensburg          http://www.sun.com/gridware
>>>> - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
>>>> Registered Office / Sitz der Gesellschaft:
>>>>   Sun Microsystems GmbH
>>>>   Sonnenallee 1
>>>>   D-85551 Kirchheim-Heimstetten
>>>>   Germany
>>>> Commercial register of the Local Court of Munich /
>>>> Handelsregistereintrag Amtsgericht Muenchen:
>>>>   HRB 161028
>>>> Managing Directors / Geschaeftsfuehrer:
>>>>   Thomas Schroeder, Wolfgang Engels, Dr. Roland Boemer
>>>> Chairman of the Supervisory Board / Vorsitzender des Aufsichtsrates
>>>>   Martin Haering
>>>>
>>>> ------------------------------------------------------
>>>>
>> http://gridengine.sunsource.net/ds/viewMessage.do?dsForumId=38&dsMessage
>>>> Id=101645
>>>>
>>>> To unsubscribe from this discussion, e-mail: [users-
>>>> unsubscribe at gridengine.sunsource.net].
>>> ------------------------------------------------------
>>>
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>> Id=101653
>>> To unsubscribe from this discussion, e-mail: [users-
>> unsubscribe at gridengine.sunsource.net].
>>
>>
>> --
>> - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
>> Roland Dittel               Tel: +49 (0)941 3075-275 (x60275)
>> Software Engineering        Fax: +49 (0)941 3075-222 (x60222)
>> Sun Microsystems GmbH
>> Dr.-Leo-Ritter-Str. 7       mailto:roland.dittel at sun.com
>> D-93049 Regensburg          http://www.sun.com/gridware
>> - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
>> Registered Office / Sitz der Gesellschaft:
>>   Sun Microsystems GmbH
>>   Sonnenallee 1
>>   D-85551 Kirchheim-Heimstetten
>>   Germany
>> Commercial register of the Local Court of Munich /
>> Handelsregistereintrag Amtsgericht Muenchen:
>>   HRB 161028
>> Managing Directors / Geschaeftsfuehrer:
>>   Thomas Schroeder, Wolfgang Engels, Dr. Roland Boemer
>> Chairman of the Supervisory Board / Vorsitzender des Aufsichtsrates
>>   Martin Haering
>>
>> ------------------------------------------------------
>> http://gridengine.sunsource.net/ds/viewMessage.do?dsForumId=38&dsMessage
>> Id=101681
>>
>> To unsubscribe from this discussion, e-mail: [users-
>> unsubscribe at gridengine.sunsource.net].
> 
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> 
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-- 
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Roland Dittel               Tel: +49 (0)941 3075-275 (x60275)
Software Engineering        Fax: +49 (0)941 3075-222 (x60222)
Sun Microsystems GmbH
Dr.-Leo-Ritter-Str. 7       mailto:roland.dittel at sun.com
D-93049 Regensburg          http://www.sun.com/gridware
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Registered Office / Sitz der Gesellschaft:
   Sun Microsystems GmbH
   Sonnenallee 1
   D-85551 Kirchheim-Heimstetten
   Germany
Commercial register of the Local Court of Munich /
Handelsregistereintrag Amtsgericht Muenchen:
   HRB 161028
Managing Directors / Geschaeftsfuehrer:
   Thomas Schroeder, Wolfgang Engels, Dr. Roland Boemer
Chairman of the Supervisory Board / Vorsitzender des Aufsichtsrates
   Martin Haering

------------------------------------------------------
http://gridengine.sunsource.net/ds/viewMessage.do?dsForumId=38&dsMessageId=101926

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