I used to be able to (e.g. in Open MPI 3.1) put the line rmaps_base_oversubscribe = true
in my `openmpi-mca-params.conf`, and this would enable oversubscription by default. In 4.0.0, it appears that this option doesn't work anymore, and I have to use `--oversubscribe`. Am I missing something, or has the parameter name changed? Ben
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