Myrinet-Myrinet Gateway

Currently a Myrinet-Myrinet gateway is implemented using a Sun SPARC host with multiple Myrinet host interfaces.

Comparing the following three configurations:

• In configuration A, flow I (source: SS10/51; sink: ss10/51) and flow II (source: SS20/50; sink SS20/71) go through gateway simultaneously. The aggregated TCP/UDP throughput is measured.
• In configuration B, flow I goes through gateway alone.
• In configuration C, flow I goes through gateway alone.
• Software: Myricom Myrinet-2.0c and FORE System SBA200-3.0.1.
• Performance measurement tool used: blast.tar.Z

Performance results (in Mbps):

Indication:

• In all cases, the aggregated bandwidth generated by two simultaneous flows is much lower than the sum of bandwidth generated by each individual flow.
• This Myrinet-Myrinet gateway configuration is a performance bottleneck.

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Last modified July 19, 1995.