Hi, On Wed, Jul 6, 2011 at 12:28 PM, Steve Kargl <s...@troutmask.apl.washington.edu> wrote: > 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 > [sarcasm] It is rather funny to see that the post you point out has generated exactly 0 meaningful follow-up then and as you mention later in this thread, the issue still remains today :-) [/sarcasm]
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