[GE users] Resource Reservation Question

matbradford matthew.bradford at eds.com
Wed Feb 4 13:02:23 GMT 2009


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Roland,


I guess this is the issue that we're coming across, as we don't have a run time limit on the queue, and jobs are not submitted with an h_rt.

If we need this then we'll use the workaround that you suggested.

Thanks very much for the info,

Regards,

Mat
>-----Original Message-----
>From: Roland.Dittel at sun.com [mailto:Roland.Dittel at sun.com]
>Sent: 04 February 2009 12:32
>To: users at gridengine.sunsource.net
>Subject: Re: [GE users] Resource Reservation Question
>
>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
>>>>>
>>>>> ------------------------------------------------------
>>>>>
>>>
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>>>>> Id=101645
>>>>>
>>>>> 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&dsMessage
>>> Id=101681
>>>
>>> To unsubscribe from this discussion, e-mail: [users-
>>> unsubscribe at gridengine.sunsource.net].
>>
>> ------------------------------------------------------
>>
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>Id=101690
>>
>> To unsubscribe from this discussion, e-mail: [users-
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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&dsMessage
>Id=101926
>
>To unsubscribe from this discussion, e-mail: [users-
>unsubscribe at gridengine.sunsource.net].

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