[mvapich-discuss] Options to let MPI use different HCAs or IB ports on different servers

[Junjie Qian]

Hi List,


I am new to MVAPICH2, and have some questions regarding using options to run.


The issue is that, there are two servers, each server has two IB ports with NUMA and the IB driver version may be different. Are there options to make MPI run on different server knows which IB driver version and port should be used on different server.


My current choice is, specify both IB driver versions with (MV2_IBA_HCA=driver_0 and MV2_IBA_HCA=driver_1) and ignoring "MV2_DEFAULT_PORT" in the MPI command.


Is there any suggestions on this?

Thank you

Best

Junjie Qian
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