[GE users] scheduling with load averages ?

prentice prentice at ias.edu
Thu Jun 25 16:46:12 BST 2009


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The point is simple: automatic traffic control for users.

--
Prentice



adary wrote:
> This might sound like a flame, but I assure you it?s not:
> 
>  
> 
> What is the point of using SGE to manage a cluster of 32 cores?
> 
>  
> 
> I believe that managing something that small is easier by hand ?
> 
>  
> 
> ------------------------------------------------------------------------
> 
> *From:* pvdmeer [mailto:pvdmeer at gmail.com]
> *Sent:* Thursday, June 25, 2009 3:33 PM
> *To:* users at gridengine.sunsource.net
> *Subject:* Re: [GE users] scheduling with load averages ?
> 
>  
> 
> Well well..
> 
> load_formula np_load_average
> 
> in the scheduler configuration seems to have done the trick ;)
> 
> With kind regards,
> 
> Pieter van der Meer
> 
> On Thu, Jun 25, 2009 at 1:56 PM, Pieter van der Meer <pvdmeer at gmail.com
> <mailto:pvdmeer at gmail.com>> wrote:
> 
> Dear SGE users,
> 
> Recently, we got our cluster (4 nodes, 8 cores each) running Grid Engine
> 6.2u2. I configured SGE to use the following scheduler configuration
> settings:
> 
> queue_sort_method                 load
> 
> load_formula                      slots
> 
> 
> I set the amount of slots in the queue to 8, and this seems to work
> fantastic. The cluster is loaded in a very balanced way. Nodes are
> filled up with one process for one core. This is what we'd like to see.
> 
> So far, so good. But what happens when people start running jobs without
> SGE? Of course, we'd like to limit this as much as possible. But at this
> moment, we can't avoid it. It seems that "qstat" is aware of host load
> averages. The metric would be a good scheduling rule, I'd say.. Does
> anyone know if this is an option with SGE 6.2u2?
> 
> Thanks in advance,
> 
> Pieter van der Meer
> 
> 
>  
>

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