[GE users] Symmetrical parallel jobs

reuti reuti at staff.uni-marburg.de
Tue Dec 8 00:41:20 GMT 2009


Am 08.12.2009 um 00:27 schrieb cdwan:

> Thanks very much for the tip.
>
> Just to be super clear:
>>> In the case of multiple parallel environments  whose names match  
>>> the name string, the parallel environment with the most available  
>>> slots is chosen.
>>>
> Can I impose the sorting I want by setting the number of slots in  
> the PE
> configuration, or are you talking about the number of job slots
> available via the queues at scheduling time?  I.e:  symmetric32 might
> have 200 slots, symmetric16 (pe_slots = 16) might have 190, and so on.
> If so, then that's exactly what I was looking for.

I don't see this happen in a test. Maybe it's meant, that when  
specifying a range for PE slots, the available maximum will be taken  
(although this can be changed in the scheduler setting).

But if you define one queue for each PE, and attach only this one PE,  
you can give seq_no to each of them.


>> Maybe there should be another allocation_rule $even with the same
>> extension.  Meaning: give me the same on all hosts. Then you could
>> specify $even:2 to avoid getting 3 on all machines. If more than one
>> is listed, exactly these counts: $even:2,4,8,16
>>
> Yes.  That's also exactly what I'm looking for.  The wildcard PE is  
> good
> - but what you describe seems more elegant from the user perspective.

I extended this issue:

http://gridengine.sunsource.net/issues/show_bug.cgi?id=2985

-- Reuti

> -Chris Dwan
>
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