Hi folks
I've written a wiki page explaining how OMPI handles HWLOC from inside the OMPI
code base starting with OMPI v5. The link is on the home page under the
Developer Documents (Accessing the HWLOC topology tree from inside the MPI/OPAL
layers):
Open MPI v4.1.1rc2 is now available at
https://www.open-mpi.org/software/ompi/v4.1/
Changes since the 4.1.0 release include:
- Reverted temporary solution that worked around launch issues in
SLURM v20.11.{0,1,2}. SchedMD encourages users to avoid these
versions and to upgrade to v20.11.3 or
