does anyone have any additional tuning tips beyond the random things on the net for 10g ethernet tuning? i have two identical servers (Quanta Q71L-4U) attached to a single cisco 10g switch, using identical (Mellanox MNPH28B-XTC) cards. when i run mpi bandwidth tests between the two cards, i top out at 200-300MB/sec using IMB sendrecv. if i use lustre lnet selftests, i can crank the max to 500MB/sec, but i can't seem to crest this.
i've monkied around with the sysctl params and the cards are in x8 slots at 2.5GT/s. i think they should be capable of driving at ~900MB/sec, but i can't seem to get there. i know i'm missing something... _______________________________________________ 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
