On Sun, Jan 17, 2010 at 8:03 PM, Gustavo Correa <g...@ldeo.columbia.edu> wrote:
> I've got Rmax/Rpeak around 84% on the cluster (AMD Opteron Shanghai, IB on a > single switch). > I didn't have the cluster available to play with HPL for too long, not too > much tuning, > I had to move to production mode. > Some folks on mailing lists said they'd get 90%, but the topmost group in > Top500 get less > (as of mid-2009 it was ~75%, IIRR), probably because of their big networks > with stacked switches and communication overhead. Thanks Gus! After further tuning I am at 95% on a single node. But performance is falling drastically when i go multinode. Maybe because I only have a 1 GigE network right now. -- Rahul _______________________________________________ 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
