-------------------------------------------------------------------------- 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: pd-compute-3-40 Local adapter: qib0 Local port: 1 -------------------------------------------------------------------------- -------------------------------------------------------------------------- WARNING: There was an error initializing an OpenFabrics device. Local host: pd-compute-3-40 Local device: qib0 -------------------------------------------------------------------------- [pd-compute-3-40.local:13846] [[18238,0],0] ORTE_ERROR_LOG: Data unpack would read past end of buffer in file util/show_help.c at line 501 [pd-compute-3-40.local:13846] [[18238,0],0] ORTE_ERROR_LOG: Data unpack would read past end of buffer in file util/show_help.c at line 507 {"realtime":16.80,"usertime":8.45,"systime":2.72,"memmax":48568,"memavg":0}