[Beowulf] MPI + IB question

[Hearns, John]

Jorg,
As Bogdan says you should start fromt he bottom up here.

On your Qlogic network you should run low-level IB diagnostics, 
Such as ibping  ibtracert ib_send_bw
Once youa re satisfied that Infiniband is properly sending data between nodes then you can start on the higher things,
As Bogdan says running simple mpi hello world.

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