Howard Pritchard

Highly likely that's the case.

Hmm. well actually this is not a bug. See https://docs.open-mpi.org/en/v5.0.x/mca.html#mca-parameter-changes-between-open-mpi-4-x-and-5-x . You'll need to add ```rmaps_default_mapping_policy = :oversubscribe``` to your $HOME/.prte/mca-params.conf, at least for v5.0.x and current main. The ompi...

I see @dalcinl . i'll take a further look at what may have caused this change in behavior on our main branch.

https://github.com/open-mpi/prrte/issues/17

git bisect and code inspection shows that the behavior was changed when we merged the commit from this PR https://github.com/openpmix/prrte/pull/1999 into our fork of prrte. Not sure whether to consider...

Hmm... well our prte could be made to know its doing ompi personality.

@dalcinl I think this can be closed now.

the chatgpt thingy says this error in mpi4py is explained by ``` The failure occurred because the libc.so.6 version GLIBC_2.38 required by libmpi.so.40 is missing. This indicates that the runner...