Bruce Allen wrote:

I have seen 200MB/s over infiniband. Needless to say I was not overly impressed, expecting more something in the 800-900MB/s
range. (pci-x bottlenecked infiniband)


PCI-X should be 133 MHz x 8 bytes = 1034 MB/s. Any idea why it bottlenecked at 200?

The 1034MB/s will really be more like 800-900MB/s in reality, that is what I saw doing MPI/VAPI.

I did not have time (or customer demand ;-) ) to look into what was going on with the NFS over IB and so I have only guesses that the drivers where optimized for VAPI and that the NFSoTCPIPoIB
really should be NFSoSDPoIB to get better performance.

Michael


Cheers,
    Bruce


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