[GE users] Moved to users list: Re: [GE issues] Calendar and advance reservation

fredwag Frederik.Wagner at lrz.de
Thu May 6 13:24:01 BST 2010


On 05/06/2010 12:14 PM, Reuti wrote:
> Hi,
> 
> (the issues list is mainly for the emails which are send automatically when changes to the issues database are made)
> 
> Am 06.05.2010 um 09:06 schrieb fredwag:
> 
>> Hi .*,
>>
>> I have a problem in SGE 6.2u1:
>>
>> We have setup for visulization system with multiple nodes and multiple
>> graphics cards per node. Through SGE a users can reserve a graphics card
>> to do their visualization job, for this an advance reservation system is
>> configured (its a batch queue, but interactive work).
>>
>> Now there is the demand for a nightly batch queue (no ar) for normal
>> dataprocessing jobs (since the machines have lots of memory and they
>> idle during the night). So I configured a 'nightly' batch queue, with a
>> calendar attached to it (4-20=off 20-4=on).
>>
>> My problem now is the following:
>> As soon there exists an advance reservation (for an already running job
>> or for the future) _no_ jobs are running in nightly queue. The scheduler
>> info gives (when the queue is by calendar enabled):
>> '(-l NONE) cannot run in queue "nightly at somehost..." because it offers
>> only qc:slots=0.000000 due to a reservation'
>>
>> What could be the problem here?
>>
>> The jobs in nightly _are_ running, when
>> * I take away the calendar, so the job is always enabled
>> * no advance reservation exists
>>
>> I already played with the scheduler parameters Maximum
>> Reservation/Default Duration etc...
>>
>> It seems that the complex slots is somehow influenced by pending
>> reservations... but why? Is this a 'backfilling' problem? I don't know
>> where to search anymore. Or is this a bug?
> 
> there one issue which I also observed with RQS:
> 
> http://gridengine.sunsource.net/issues/show_bug.cgi?id=2761
> 
> Are you using RQS?

no, we are not using RQS, just an advance reservation queue and a normal
queue with calender.

Thanks and bye,
Frederik

> 
> -- Reuti
> 
> 
> 
>> Thanks a lot for any help!
>> Bye,
>> Frederik
>>
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