> GigE is not perfect. My point is that for many applications > it can work well.
for many apps of certain job sizes... > desktop (32 bit PCI) cards. I managed to get 14.6 HPL GFLOPS > and 4.35 GROMACS GFLOPS out of 8 nodes consisting of hardware ... > As a point of reference, a quad opteron 270 (2GHz) reported > 4.31 GROMACS GFLOPS. that's perplexing to me, since the first cluster has semp/2500's, right? that's a 1.75 GHz K8 core with 128K L2 and 64b memory interface. versus the same number of 2.0 GHz, 1M cores each with 4x 128b memory. I really wouldn't expect them to be that close - any speculation on why GROMACS runs so poorly on the much better SMP machine? _______________________________________________ Beowulf mailing list, Beowulf@beowulf.org To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
