On Fri, 31 Jul 2015 08:00:30 +0000 "Winkler, Ursula (ursula.wink...@uni-graz.at)" <ursula.wink...@uni-graz.at> wrote:
> > What happens with serial jobs (ie no PE at all)? If they exhibit
> > the same behavior then we just need to figure out how to tweak the
> > scheduler config to fill up nodes. If serial jobs are already
> > clumping onto a few nodes then the claim that $pe_slots behaves
> > like serial on the oracle blog that Reuti pointed to may not be an
> > accurate description of your version of grid engine.
>
> Because gepetools is configured as default jsv
> ( "jsv_url /software/sge/gepetools/pe.jsv" ) for all jobs, serial
> jobs are also concerned ("nodes=1,ppn=1").
>
> Just for testing I disabled the jsv temporarily: the scheduling with
> serial jobs work then as in the oracle blog (= filling up)
So it sounds like the $pe_slots=serial behavior isn't true for your
grid engine. An alternative would be to convert single node jobs to
serial jobs that requests a consumable(other than slots) representing
the number of cores on the node. However this will change the behavior
when requesting other consumables and probably won't interact well with
core binding.
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