What is the runtime command? It’s coming from HCOLL. If HCOLL is not needed feel free to disable it -mca coll ^hcoll
Tomislav Janjusic Staff Eng., Mellanox, HPC SW +1 (512) 598-0386 NVIDIA<http://www.nvidia.com/> From: devel <devel-boun...@lists.open-mpi.org> On Behalf Of mrlong via devel Sent: Monday, November 7, 2022 2:33 AM To: devel@lists.open-mpi.org; Open MPI Users <us...@lists.open-mpi.org> Cc: mrlong <mrlong...@gmail.com> Subject: [OMPI devel] [LOG_CAT_ML] component basesmuma is not available but requested in hierarchy: basesmuma, basesmuma, ucx_p2p:basesmsocket, basesmuma, p2p External email: Use caution opening links or attachments The execution of openmpi 5.0.0rc9 results in the following： (py3.9) [user@machine01 share]$ mpirun -n 2 python test.py [LOG_CAT_ML] component basesmuma is not available but requested in hierarchy: basesmuma,basesmuma,ucx_p2p:basesmsocket,basesmuma,p2p [LOG_CAT_ML] ml_discover_hierarchy exited with error [LOG_CAT_ML] component basesmuma is not available but requested in hierarchy: basesmuma,basesmuma,ucx_p2p:basesmsocket,basesmuma,p2p [LOG_CAT_ML] ml_discover_hierarchy exited with error Why is this message printed?
