I had said "I believe these are with IB." Now I'm not so sure. I just did a
"ifconfig ib0" on all the nodes and they all say BROADCAST MULTICAST MTU:65520 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:256 RX bytes:0 (0.0 b) TX bytes:0 (0.0 b) So, it doesn't look like any of these tests used IB, although I'm not sure because some of those numbers looked better than I'd expect for just 1Gb ethernet. I'll have to figure out how to force IB when using OpenMPI. -- Jon Forrest Research Computing Support College of Chemistry 173 Tan Hall University of California Berkeley Berkeley, CA 94720-1460 510-643-1032 jlforr...@berkeley.edu _______________________________________________ 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