Debian-11 with openmpi and ucx workaround
Due to a bug in the UCX/Open-MPI packages shipped with debian-11 several MPI jobs produce wrong results or crash with errors. This bug is worked around by adding the OMPI_MCA_pml="^ucx"
variable to the docker image. Once it is fixed in the debian-11 source image, we should remove this workaround.
See !83 (merged) and #18 (closed)