[GE users] exclusive queues - mutually subordinating

James Coomer jamesc at streamline-computing.com
Thu Nov 3 17:46:39 GMT 2005


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The parallel jobs go via a pe (which uses SCore MPI) which is associated
with parallel.q

James

> James,
>
> How are you using the parallel queues as part of a Grid Engine parallel
> environment (PE)?  Or are you just running jobs which need 2 cpus in the
> parallel queues?
>
> Shannon
>
> James Coomer wrote:
>
>>Hi,
>>
>>I'm using SGE6u3 on SuSe9.0 cluster
>>
>>We are using queues in a slightly unusual way, where we have a parallel.q
>>and serial.q spanning all queues. Each queue has the other in the
>>subordinate_list so that parallel and serial jobs don't mix on a host.
>>
>>I can't ( I dont think) force the exclusivity by using a per-host slot
>>consumable because (for good reasons) we have 1 slot per host for the
>>parallel queues and 2 for the serial queues (they are 2cpu machines)
>>
>>My problem is that under certain circumstances both serial and parallel
>>jobs can get scheduled in the same scheduling cycle and occupy both
>> queues
>>simultaneously, and suspend eachother.
>>
>>I've found similar queries in the archives, but nothing quite the same.
>>Any ideas?
>>
>>Many Thanks,
>>James
>>
>>
>>
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>
>
> --
> ____________________________________________
>
> Shannon V. Davidson <svdavidson at charter.net>
> Senior Software Engineer            Raytheon
> 636-479-7465 office         443-383-0331 fax
> ____________________________________________
>
>
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-- 


Dr James Coomer
HPC and Grid Solutions
Streamline Computing


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