2009/6/29 Rahul Nabar <[email protected]>: > On Mon, Jun 29, 2009 at 3:15 PM, Mark Hahn<[email protected]> wrote: > > Thanks for all the help Mark! > > >> well, ping is not _really_ a benchmark ;) > > I thought so! :) Lazy person's first shot. Now I will try ethtool. >
Rahul, its maybe worth making something explicitly clear. When folks on this list talk about 'latency' they are talking about times for sending MPI messages. The Pallas and OMB benchmarks suggested do that. When you use 'ping' you are measuring the trip time for IP ICMP packages, which, yep, is a valid measurement and gives a good idea of performance. _______________________________________________ Beowulf mailing list, [email protected] sponsored by Penguin Computing To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
