Re: [OMPI users] mpi via python mpi4py can't use ucx pml

[Bernstein, Noam CIV USN NRL (6393) Washington DC (USA) via users]

Looks like the issue is that mpi4py by default uses THREAD_MULTIPLE, which ucx 
does not support.  It would be nice if the OpenMPI pml selection code provided 
information on what exactly caused ucx initialization to fail, but at least I 
know how to work around my problem now.