[GE users] confirm seqno usage

igardais igardais at yahoo.fr
Mon Aug 24 14:00:11 BST 2009


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And you are right again !
I tried this a few minutes after Yann points me to the topics and it solves my issue.

I think I should go back on holiday for a few days ...

Ionel



________________________________
De : reuti <reuti at staff.uni-marburg.de>
? : users at gridengine.sunsource.net
Envoyé le : Lundi, 24 Août 2009, 14h05mn 40s
Objet : Re: [GE users] confirm seqno usage

Hi,

Am 24.08.2009 um 11:27 schrieb jobic:

> igardais wrote:
>>
>> <!-- DIV {margin:0px;} -->
>> Hi,
>>
>> I recently changed the scheduler queue_sort_method to seqno.
>> However, when I'm submitting a job to a queue, the configured
>> seq_no parameter does not seem to be used.
>>
>> Here is my current configuration :
>> ==sched conf (extract)==
>> algorithm                        default
>> schedule_interval                0:0:10
>> maxujobs                          0
>> queue_sort_method                seqno
>> job_load_adjustments              np_load_avg=0.50
>> load_adjustment_decay_time        0:7:30
>> load_formula                      np_load_avg
>> schedd_job_info                  true
>>
>> ==queue conf (extract)==
>> qname                all..q
>> hostlist              @workstations
>> seq_no                100,[@br1st=200]

please try the opposite ordering:

seq_no 200,[@br1st=100]

-- Reuti


>> Hostgroup "@br1st" is a subset of hosts which also exist in the
>> hostgroup "@workstations".
>>
>> The job :
>> $ qsub -b y -q all.q /bin/sleep 10
>> can land on any node of "@workstations" even if hostgroup "@br1st"
>> has a higher seq_no.
>> What I expect is that jobs get scheduled first on "@br1st" then on
>> "@workstations" if any "@br1st" are available.
>>
>> Is there a way to diagnose what is going on ?
>> Or do you have a wise advice ?
>>
>>
>> Thanks,
>> Ionel
> You may find usefull information here :
> http://gridengine.sunsource.net/ds/viewMessage.do?
> dsForumId=38&viewType=browseAll&dsMessageId=201984#messagefocus
> http://gridengine.sunsource.net/ds/viewMessage.do?
> dsForumId=38&viewType=browseAll&dsMessageId=115507#messagefocus
>
> You need to put priority on hosts. It's all explained in the links.
>
> Yann
>
>
> -- ___________________________ Yann JOBIC HPC engineer Polytech
> Marseille DME IUSTI-CNRS UMR 6595 Technopôle de Château Gombert 5
> rue Enrico Fermi 13453 Marseille cedex 13 Tel : (33) 4 91 10 69 39
> ou (33) 4 91 10 69 43 Fax : (33) 4 91 10 69 69

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