On Thu, Jan 30, 2014 at 5:33 PM, Prentice Bisbal <prentice.bis...@rutgers.edu> wrote: > IB has more than enough bandwidth for > message-passing and I/O.
Bandwidth is not the only measure for performance. Latency and number of messages per unit of time that can be handled are others. Especially the latter was the subject of a heated debate a few years ago on this list. -- You mean a Beowulf cluster composed of machines scattered around the city with trucks carrying boxes of 1 TB disk drives between processor nodes may not be an optimum architecture for fine grained parallelism? This configuration has very, very high data rate and bandwidth, but latency isn't so hot. Jim _______________________________________________ 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
