[Mauiusers] [Patch] GPUs by the way of GRES

[Suraj Prabhakaran]

Hello!

Is this patch completely tested and committed to the maui trunk?

Best regards,
Suraj

On Feb 16, 2012, at 4:52 PM, Bas van der Vlies wrote:

> Jonathan,
> 
> Thanks for the patch. I will test it and i have also write access to the subversion tree. So if more sites have tested and it works than we can commit it to maui trunk source.
> 
> regards
> 
> 
> On 02/03/2012 09:58 AM, Jonathan Michalon wrote:
>> Hi Maui folks,
>> 
>> GPUs in Maui are a long standing problem. Last year a patch was sent by Mariusz
>> Mamoński [1], which works based on GRES parameters.
>> I've just made GPUs kind of working, by enhancing that patch. Please find
>> attached the resulting patch, which works well for Maui 3.3.1.
>> It defines a special GRES named "gpu" which works as expected on my test cases.
>> 
>> Note that GRES behaviour seems quite confused as sometimes they are mentioned
>> as consumable. This patch annihilates this behaviour, for the needs of GPUs.
>> 
>> To use the patch:
>> get the sources of maui-3.3.1 and patch them:
>> patch -p1<  ../Patch-for-gpu-GRES.patch
>> then compile as usual.
>> 
>> You have to configure the GPUs in maui.cfg:
>> NODECFG[nodename] GRES=gpu:2
>> 
>> Then when queuing jobs you can request GPUs with (Torque syntax):
>> qsub -W x=GRES:gpu at 1
>> 
>> I hope this helps, please test this and enhance to your needs!
>> 
>> [1]
>> http://www.supercluster.org/pipermail/mauiusers/2011-April/004622.html
>> 
>> Regards,
>> 
>> PS. This is the second attempt to send the mail…
>> 
>> --
>> Jonathan Michalon
>> IT student in Strasbourg
> 
> 
> -- 
> ********************************************************************
> *  Bas van der Vlies                    e-mail: basv at sara.nl       *
> *  SARA - Academic Computing Services   Amsterdam, The Netherlands *
> ********************************************************************
> 
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--------------------------
Suraj Prabhakaran

German Research School for
Simulation Sciences GmbH
Laboratory for Parallel Progreamming
52062 Aachen | Germany

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