[GE users] how can configure SGE for different request of jobs

mrostaee mrostaee at yahoo.com
Sun Aug 29 08:10:50 BST 2010

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Thx for your reply
another question:
nodes on cluster have 4 slots.
>in that senario, can i prevent oversubscription for cores of nodes at that queue? ( nodes have 4 slots, but a user request pe_slot PE that 48 slots needs and i want to use just one node)
> can i limit users or hosts with condition by RQS?

--- On Sat, 28/8/10, reuti <reuti at staff.uni-marburg.de> wrote:

> From: reuti <reuti at staff.uni-marburg.de>
> Subject: Re: [GE users] how can configure SGE for different request of jobs
> To: users at gridengine.sunsource.net
> Date: Saturday, 28 August, 2010, 5:12 PM
> Hi,
> Am 28.08.2010 um 12:51 schrieb mrostaee:
> > I defined a queue on 5 nodes.
> > I want a job  that request slots <48 just use
> one host  (no distribution, just one host).
> > and for slots>48, jobs can be distributed on all
> hosts of defined queue.
> > 
> > how can i configure SGE for that user?
> with two different PEs like mpi_pe and mpi_rr with
> allocation_rule $pe_slots resp. $round_robin the user can
> use the appropriate one for his intended number of slots.
> Although it's an RFE having the resource quotas working the
> other way round (i.e. as minimum requirements for certain
> conditions), there is nothing built in like this for now to
> make the correct request for the PEs automatically. But this
> we can also do by other means:
> Step 1) By defining a JSV (job submission verifier) the
> users can request e.g. "-pe mpi* 77" and the JSV will have
> to replace the "mpi*" with the correct one. The JSV also
> needs to check, whether the user is trying to cheat the
> system by requesting illegal combinations like "-pe mpi_rr
> 4".
> Optional step 2) In addition a fake PE called only "mpi"
> with zero slots set in its definition can avoid, that users
> have to quote "mpi*" all the time to avoid expansion of the
> asterisk by the shell*). In the plain PE "mpi" no jobs will
> ever run of course, but the JSV will replace this with the
> best suited one anyway.
> -- Reuti
> *) I find it somewhat inconsequent, that the bash will on
> the one hand replace "mpi*" with the list of filenames, in
> case there are any starting with "mpi" . But on the other
> hand forward the plain asterisk in case there are none - the
> list should simply be empty then.
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