Package: nwchem Followup-For: Bug #1131374 This appears to be a general issue in openmpi c.f. https://github.com/open-mpi/ompi/issues/12517
The only way to avoid it at the moment appears to be by explicitly deactivating UCX with --mca osc ^ucx or OMPI_MCA_osc=^ucx e.g. mpi4py did so for its own CI testing, https://github.com/mpi4py/mpi4py/pull/780
