On Wed, 06 Dec 2017 21:39:20 +1100 Chris Samuel <ch...@csamuel.org> wrote:
> On Wednesday, 6 December 2017 8:09:20 PM AEDT Peter Kjellström wrote: > > > If you got only a 4x performance reduction when running a 48x over > > subscribe on 1/48 the amount of cores then something is wrong with > > your base line. That is, the "run without queue system" case seems > > suspicsious. > > If this is, as I suspect is likely, bioinformatics code it could well > be that it is a pipeline type application and only part of the > application may be able to make use of parallelism (and then might > not be very good at it). Even more reason not to give it 48x more resource to waste then :-) Probably wise to go back to a smaller set of resources and no over subscribe and evaluate behavior. /Peter K _______________________________________________ Beowulf mailing list, Beowulf@beowulf.org sponsored by Penguin Computing To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
