Hi Tim, Tim Chipman wrote: > Does anyone have any 'real world' experience with 'both' of these CPUs, in > terms of relative performance for 'whatever work you do' ? > > I realize the xeon is a faster mhz part (3.16ghz xeon vs 2.3ghz opteron) so > I'm more concerned with "relative performance per mhz" > > I'm involved with a cluster project, and we have 2 options from our vendor, > > - 25 compute nodes, dual-quadcore intel 5460, or > - 32 compute nodes, dual-quadcore amd 2356 > >>From what I've been able to glean (Spec.org / SpecCPU 2006), > > - the intel chips have better integer performance > - the amd chips have better FPU performance > > so the likely anticipated real-world performance result .. will depend on how > a given application blends / balances things.
We have "only" the Quad-Xeon boxes with E5435 and these are quite fast, indeed it seems that FFTW seems to run faster on Xeons but I have not made any benchmarks for the past ~ 9 months, so I don't know about the latest Opterons. I think you need to come up with a real world scenario of what will be run on the cluster and maybe compile a little benchmark yourself ans aks the vendor to run both (or get hands on on both boxes. I think that's the only "fair" comparison that's possible. HTH Carsten _______________________________________________ Beowulf mailing list, Beowulf@beowulf.org To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
