Hi Hui, thank you for your reply. Ok I'll create that issue then. We've a quite large PVM application. It has processes handling in a singleton fashion that it allows powerful functionality. We needed to port the PVM code to MPI in this exact way to preserve that functionality. We've done this already but with the Open MPI implementation. However we've found some inconsistencies in it and that's why I'm querying about this feature in MPICH. Best regards Martín On Wed, Sep 23, 2020 at 8:31 PM Zhou, Hui <[email protected]> wrote:

It’s possible but not prioritized. Could you open an issue on github? When we have enough users requesting the feature (or when we have persistent user requesting it), the priority may be escalated. 😊 Meanwhile, could you describe the scenario that you have to use singleton init (vs. `mpirun -n 1 prog …`)?

-- Hui Zhou

*From: *Martín Morales via discuss <[email protected]> *Reply-To: *"[email protected]" <[email protected]> *Date: *Wednesday, September 23, 2020 at 3:49 PM *To: *"[email protected]" <[email protected]> *Cc: *Martín Morales <[email protected]> *Subject: *[mpich-discuss] Spawns without mpirun

Hi all!

I asked here some time ago about dynamically spawn processes from a singleton but the answer was that unfortunately, there was a problem with that and just It was not possible. I wonder now if this functionality is available.

Best regards

Martín

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