[mvapich-discuss] MVAPICH 2.1 check commications device?

[Novosielski, Ryan]

Is there an environment variable or something I can set that will confirm which network device is being used for communication? It appears as if my hosts may be using Ethernet instead of Infiniband, which is very strange. I'm using MPAPICH2 2.1 via PMI2 (using SLURM).

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