[GE users] howto force minimal usage of a resource

Reuti reuti at staff.uni-marburg.de
Thu Jul 3 16:47:25 BST 2008


Hi,

Am 03.07.2008 um 17:39 schrieb Ross Dickson:

> Reuti,
>
> is there in fact an RFE filed for this?  I searched for "minimum"  
> and "limit" in the Issue Tracker and couldn't find anything.

http://gridengine.sunsource.net/issues/show_bug.cgi?id=2148

-- Reuti


> This accidental "denial of service" just happened to us here as  
> well.  It would be nice to have a way to prevent it (besides  
> educating users, which we're also doing).
>
>
> Cheers,
> Ross
>
>
> On Thu, 15 May 2008 15:21:39 +0200 Reuti wrote:
>
> > Hi,
> >
> > as the limit is set as it is specified, you can't increase it  
> later > on unfortunately.
> >
> > It's and RFE to have a minimum limit (I would like it to have a >  
> minimum of slots for a parallel job which it must request at  
> least). > But for now I don't see an option to get it (unless you  
> tweak the SGE > source to add always some amount). "If" these 10M  
> are sufficient to > start a bash at least, you could use a  
> starter_method, check for this > limit and exit with a proper error  
> message or exec the given argument > (I just checked it  
> interactively and it seems to be too less :-/ ).
> >
> > -- Reuti
> >
> >
> > Am 15.05.2008 um 14:52 schrieb Andreas Haupt:
> >
> >> Hi *,
> >>
> >> is it possible to force a minimal usage of a special resource at  
> job
> >> submission?
> >>
> >> Example: we have some "special" users who just require  
> h_vmem=10M or
> >> less for their jobs by accident. This is even too little to run the
> >> prolog script which puts the queue instance into error state. By  
> just
> >> running enough of such jobs you can "dos" a complete farm as all
> >> instances end up in an error state after a while.
> >>
> >> Is there a way to prevent this, e.g. force h_vmem to be 32M at  
> least?
> >>
> >> Cheers,
> >> Andreas
>
> -- 
> Ross Dickson         Computational Research Consultant
> ACEnet               http://www.ace-net.ca
> +1 902 494 6710      Skype: ross.m.dickson
>
>
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