2009/6/29 Rahul Nabar <rpna...@gmail.com>: > On Mon, Jun 29, 2009 at 3:15 PM, Mark Hahn<h...@mcmaster.ca> 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, Beowulf@beowulf.org sponsored by Penguin Computing To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
