----- "Nifty Tom Mitchell" <niftyo...@niftyegg.com> wrote:
> On Wed, Dec 24, 2008 at 09:03:38PM +1100, Chris Samuel wrote: > > > I contemplated doing this on our Barcelona cluster, but > > sacrificing 1 core in 8 was a bit too much of a high price > > to pay. But people with higher core counts per node might > > find it attractive. > > This seems like a be a benchmark decision based on application > load and 'implied IO+OS' loading as well as the ability to > localize the IO+OS activity to the sacrificed CPU core. I'll leave that to sites that have a benchmarkable and characterisable workload. :-) We've got over 600 random users running random code (some very random indeed [1]) that covers all categories from self-written, through open source to commercial apps. cheers, Chris [1] - including a commercial code that segfaults in one particular program in libmsxml.so - yes, that appears to be a 3rd party implementation of the M$ XML library on Linux. When reported they claimed it was because we were running CentOS5 not RHEL4. Can't reproduce on RHEL4 because it crashes *before* that point on that distro. Gah. -- Christopher Samuel - (03) 9925 4751 - Systems Manager The Victorian Partnership for Advanced Computing P.O. Box 201, Carlton South, VIC 3053, Australia VPAC is a not-for-profit Registered Research Agency _______________________________________________ Beowulf mailing list, Beowulf@beowulf.org To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
