Am 16.10.2012 um 00:09 schrieb Joseph Farran:
> Syntax question on the limit.
>
> In order to place a limit of say 333 cores per user on queue "free", is the
> syntax:
>
> limit users * queues free to slots=333
limit user {*} queues free to slots=333
-- Reuti
> Correct?
>
>
> On 10/15/2012 01:32 PM, Joseph Farran wrote:
>> Hi Harry.
>>
>> Thanks. I understand the general fair share methods available in GE.
>>
>> My question is if anyone knows if a functional fair share can be applied to
>> a queue only (not system wide).
>>
>> One manual way to accomplish this ( *basic* fair share method on a queue )
>> is to setup a resource quota to allow max cores (slots) to be used by any
>> one user on the given queue.
>>
>> A cron job then checks the queue every say 10 minutes and counts the number
>> of users on the queue and then re-sets the max cores per user on the queue.
>>
>> If my queue has 1,000 cores, and only one user is using the queue, the cron
>> job then sets the quota limit with:
>>
>> limit queues free to slots=1000
>>
>> On next cron cycle, if there are 3 users on the free queue the cron job will
>> then:
>>
>> limit queues free to slots=333
>>
>> and so on.
>>
>> As you can tell this method has some shortcomings. If user1 wants 900
>> cores and user2 only needs 10 cores and user3 only needs 2 cores, the queue
>> will not be fully optimized ( only 333+10+2 = 345 cores in used instead of
>> 900+10+2=912 cores in use).
>>
>> I could do some fancy scripting to re-adjust based on number of users *and*
>> core-count request, but this get's tricky and since GE has a fair share in
>> place already, I wanted to see if I could use that but on a queue only.
>>
>> Best,
>> Joseph
>>
>>
>> On 10/15/2012 10:53 AM, harry mangalam wrote:
>>> I wrote up a doc a while ago (when trying to come up with a useful way to
>>> organize/admin our condo cluster) that addresses this, I think:
>>>
>>> <http://moo.nac.uci.edu/~hjm/BDUC_Pay_For_Priority.html>
>>>
>>> If it is inaccurate, please let me know and I'll correct it.
>>>
>>> hjm
>>>
>>> On Sunday, October 14, 2012 01:42:38 AM Joseph Farran wrote:
>>>> Hi All.
>>>>
>>>> I have a queue on our cluster with 1,000 cores that all users can use.
>>>>
>>>> I like to keep the queue as close to 100% utilization as possible so that 1
>>>> user can use all 1,000 cores on that queue. However if other users
>>>> jump-in to use the queue, then allow the other users to get their fair
>>>> share.
>>>>
>>>> The Grid Engine functional fair share sounds like the way to go, but can it
>>>> be set for only a queue? I have several queues and only want to set this
>>>> up for 1 queue only.
>>>>
>>>> The notes I read says that to setup a simple Functional Fair Share, to do:
>>>>
>>>> qconf -mconf
>>>> enforce_user auto
>>>> auto_user_fshare 100
>>>>
>>>> qconf -msconf
>>>> weight_tickets_functional 10000
>>>>
>>>>
>>>> But I think this applies to all queues. Can this be set for 1 queue
>>>> only?
>>
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>
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