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 -- SteveReceived on Wed Jul 06 2011 - 14:28:12 UTC
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