BIP-SMP : High Performance Message Passing over a Cluster of Commodity SMPs
Device Interface Channel Interface NX Check_incoming "short", "eager", P4 TCP/IP Paragon SP/2 Generic ADI code, datatype mgmt, heterogeneity request queues mgmt " Protocol interface" SGI port. other ports shared-mem port MPL BIP MPI BIP "rendez-vous" Protocols Figure1: Thearchitectureof MPI-BIP implementedwith oneor several messagesof the underlyingcommunicationsystem (BIP in our case). Thecostof MPI-BIP is approximatelyanoverheadof 2 s (mainlyCPU)overBIP for thelatency onourcluster. Thus,thelatency of thenon-SMPMPI-BIP is verygood, 7 s,andthebandwidthreaches110MB/s.