On Oct 14, 2010, at 10:37 PM, Christopher Samuel wrote: > Apologies if this is off topic, but I'm trying to check > what speeds the login nodes to our cluster and BlueGene > can talk at and the only 10Gb/s iperf server I've been > given access to so far (run by AARNET) showed me just > under 1Gb/s.
Have you tried netperf? I have read that iperf calls gettimeofday() before and after each read/write which might mean you are measuring the BG syscall time more than network throughput time. Scott _______________________________________________ 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
