> On a similar note, does a dual-port card provide an increase in > on-card processing, or 'just' another link? (The increased bandwidth is > certainly nice, even in a flat switched network, I'm sure!)
Today one port IB (assuming QDR) can saturate the PCIe Gen2 interface that is supported. Using 2 ports can give you high availability or fail over. Some folks are using it to increase the message rate as well, but I have not seen numbers to confirm. Other folks are using dual one-port adapters, and this gives them 2x the BW. Gilad _______________________________________________ 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
