[GE users] Memory as a Consumable

reuti reuti at staff.uni-marburg.de
Tue Apr 6 18:05:41 BST 2010


Am 06.04.2010 um 18:38 schrieb isakrejda:

> I am trying to set up memory as a consumable on our cluster. I searched 
> the e-mail archives
> and found 2 threads related to it:
> http://gridengine.sunsource.net/ds/viewMessage.do?dsForumId=38&dsMessageId=206604
> http://gridengine.sunsource.net/ds/viewMessage.do?dsForumId=38&dsMessageId=2383
> one of them discusses mem_free and the other suggests to use the h_vmem 
> instead.
> Could somebody comment on advantages of one vs the other?


> I also see mem_free as being one of the load values reported per host.
> If I strat setting it, won't it interfere?

No, the the tighter constraint will be used: internal bookkeeping vs. measured load value.

> Also all our jobs are already requesting h_vmem (and I am forcing a default
> allowing users to go higher than the default), so I thought that would 
> be easier.
> We have hosts of various generations with memory that differs, so what 
> value
> should be used for the deafult? I read the default as "value to be 
> assigned if there is
> -l h_vmem specified,

It's the value which is used when h_vmem isn't requested at all.

-- Reuti

> but nothing assigned". Reading the postings I am 
> getting
> confused. So what id the meaning of 'default" in the complex definition?
> Thank You,
> iwona
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