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Results in Distributed Memory Mode (Figure 6)

Figure 6: PingPong Results in Distributed Memory (DM) mode

In DM the differences between the MPI codes is not as pronounced as seen in SM. Under WMPI the C and mpiJava codes display very similar performance characteristics throughout the range tested. Under MPICH, there is distinct performance difference between C and mpiJava, However the difference is much smaller than in SM and the curves converge at the 4K. All curves peak at about 1 MByte/s, which is about 90% of the maximum attainable on 10 Mbps Ethernet link.

Bryan Carpenter 2002-07-11