[GE users] Some jobs wait long time in the queue
canonico at mfn.unipmn.it
Mon Aug 27 21:19:49 BST 2007
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> Am 27.08.2007 um 15:55 schrieb Massimo Canonico:
>> I have implemented the user fairshare policy
>> *********Easy setup of equal user fairshare policy******
>> 1. Make 2 changes in the main SGE configuration ('qconf -mconf'):
>> * enforce_user auto
>> * auto_user_fshare 100
>> 2. Make 1 change in the SGE scheduler configuration ('qconf -msconf'):
>> * weight_tickets_functional 10000
>> *******************sub array of tasks**************
>> but I do not like the current behavior of the scheduler.
>> In particular there is one user who has submitted 1000 jobs with a
>> rapid response time and another user that is waiting for a resource
>> for hours. I would like see that the user waiting in the queue gets
>> higher priority in order to not wait so long time.
>> How can I speed up the priority level of the users waiting in the queue?
> Are the 1000 jobs already executing? If there are still some waiting,
> then the one job should be executed before them. Are there any special
> resources required for this job, which need to be reserved beforehand?
No, no special requirements. In our cluster there are 12 machines, so
the scenario is the following:
user X has submitted 1000 jobs, then user Y has submitted 1 job
the first 12 jobs of user X are running in the cluster, the other 988
jobs are waiting for idle machines and finally the job of user Y is at
the end of the queue.
I have observed the queue for all day, but the scheduler always selects
the X user jobs instead of the Y's job. The Y's job keeps his priority
equals to 0.5, while the X user jobs keep a value of about 0.535.
Now I have limited the number of job for users but this is a static
solution and I would like to set a dynamic one.
Thanks in advice,
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