[mvapich-discuss] mvapich: using IPoIB or direct IB?

[Michael Zebrowski]

Does anyone know a good way to determine whether mvapich is utilizing
IPoIB or direct IB during its run? I have validated that the packet
counters increase significantly (using OFED's perfquery) on nodes that
are referenced during the mpi run (and do not increase when they are not
referenced), but I wanted to confirm that this is an accurate approach
in determining this.

Also, what exactly does the 'tdevice' executable report?

- Michael

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