-------------------------------------------------------------------------- By default, for Open MPI 4.0 and later, infiniband ports on a device are not used by default. The intent is to use UCX for these devices. You can override this policy by setting the btl_openib_allow_ib MCA parameter to true. Local host: acn66 Local adapter: mlx5_0 Local port: 1 -------------------------------------------------------------------------- -------------------------------------------------------------------------- WARNING: There was an error initializing an OpenFabrics device. Local host: acn66 Local device: mlx5_0 -------------------------------------------------------------------------- [acn66:427246] [[11835,0],0] ORTE_ERROR_LOG: Data unpack had inadequate space in file util/show_help.c at line 513 [acn66:427246] [[11835,0],0] ORTE_ERROR_LOG: Data unpack would read past end of buffer in file util/show_help.c at line 501 {"realtime":13.05,"usertime":10.58,"systime":1.43,"memmax":365264,"memavg":0}