Josh Hursey

For reference: * PRRTE master : https://github.com/openpmix/prrte/pull/1446 (merged) * PRRTE v3.0 : https://github.com/openpmix/prrte/pull/1447 (merged) @awlauria We will need to pick this PRRTE change up as well.

FYI: I can confirm that the PRRTE fix addresses this issue. I change my prrte submodule to the `v3.0` branch (including 1447) and was able to run successfully without any...

The fixes were merged into PRRTE `v3` and the submodule pointer for Open MPI `v5.0.x` have been updated. I think we are good to close this issue.

bot:ibm:pgi:retest

bot:ibm:pgi:retest

For reference, below is what Open MPI `main` branch displays with PRRTE: ```shell shell$ mpirun --np 2 --map-by :donotlaunch hostname [f5n18:3115678] LAUNCH MSG RAW SIZE: 1039 ```

PRs: * `v4.0.x`: https://github.com/open-mpi/ompi/pull/10645 * `v4.1.x`: https://github.com/open-mpi/ompi/pull/10644 * `v5.0.x` and `main` are not impacted

I took a crack at this and got singleton without spawn working, but with spawn I'm getting: ``` [jjhursey@f5n17 mpi] ./hello_c 0/ 1) [f5n17] 2998639 Hello, world! [jjhursey@f5n17 mpi] ./simple_spawn...

Two changes required to fix this issue: * OMPI : https://github.com/open-mpi/ompi/pull/10688 (`PMIX_LOCAL_PEERS` handing, and a `prte` CLI fix) * PRRTE : https://github.com/openpmix/prrte/pull/1443 (`--keepalive` CLI handing) With those two fixes I...

Open MPI `master` now seems to have a fully working singleton spawn after the merging of the following PRs: * https://github.com/open-mpi/ompi/pull/10695 * https://github.com/open-mpi/ompi/pull/10688 * https://github.com/open-mpi/ompi/pull/10700 * https://github.com/open-mpi/ompi/pull/10699 ``` shell$ date...