I just setup an infiniband networking system on my Dell dual quad core cluster and wanted to share the benchmark results. I am using a Cisco SFS 7000P switch and Mellanox MHEA28-XTC HCA infiniband cards. Setup was trivial thanks to a very competent sys admin!!!! Used open the openMPI that came with the Mellanox software and it worked out of the box.
All of the nodes in the cluster are dual quad core. 128 cores total. Benchmark: 425362 Atoms Protein/Water 4 fs time step PME, etc.. 8 Cores1ns/day 16 Cores 2ns/day 32 Cores 4 ns/day 64 Cores 8 ns/day 128 Cores 14 ns/day. I get 100% scaling through 64 and 87% @ 128. Not bad!!!! Cheers, Ilya -- Ilya Chorny Ph.D.
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