On Wed, Jul 06, 2011 at 05:29:24PM +0200, O. Hartmann wrote: > > I use SCHED_ULE on all machines, since it is supposed to be performing > better on multicore boxes, but there are lots of suggestions switching > back to the old SCHED_4BSD scheduler. >
If you are using MPI in numerical codes, then you want to use SCHED_4BSD. I've posted numerous times about ULE and its very poor performance when using MPI. http://lists.freebsd.org/pipermail/freebsd-hackers/2008-October/026375.html -- Steve _______________________________________________ freebsd-current@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"
