[GE users] user feels penalized by share tree

Charu Chaubal Charu.Chaubal at Sun.COM
Wed Jun 2 23:22:35 BST 2004


Did you try changing the compensation factor?  This limits the amount 
of "compensation" other users receive, so that your unhappy user won't 
be "penalized" as much.

Regards,
	Charu

On Jun 2, 2004, at 12:10 AM, Sebastian Stark wrote:

>
> One of my users was complaining about being penalized by the share 
> tree policy
> if he's using the cluster when otherwise it would be idle. Let us 
> assume the
> following situation:
>
> There are 20 nodes, 15 of which are free (have no job running) at 
> night. The
> user thinks it would be a good time to submit his jobs (which is not 
> wrong).
>
> Say he submits 12 jobs which run all the night.
>
> On the next day, when other users are submitting jobs, he will have 
> bad karma
> (=less tickets) and feel 'penalized' for using the idle time of the 
> cluster.
>
> I couldn't find a way to argue against that nor could I find a way to
> 'fix' that behaviour in SGE.
>
> I'm running SGEEE 5.3p5 with a quite simple share tree and evenly 
> distributed
> tickets. Does someone have an idea how I could make the system 'feel a 
> bit
> more fair'?
>
> -- 
> Sebastian Stark -- http://www.kyb.tuebingen.mpg.de/~stark
> Max Planck Institute for Biological Cybernetics
> Spemannstr. 38, 72076 Tuebingen
> Phone: +49 7071 601 555 -- Fax: +49 7071 601 552
>
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