BIP-SMP : High Performance Message Passing over a Cluster of Commodity SMPs

Abstract

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 Figure 1: The architecture of MPI-BIP implemented with one or several messages of the underlying c ommunication system (BIP in our case). The cost of MPI-BIP is approximately an overhead of 2 s (mainly CPU) over BIP for the latency on our cluster. Thus, the latency of the non-S MP MPI-BIP is very good, 7 s, and the bandwidth reaches 110 MB/s.