[mpiwg-sessions] Topics for Sessions WG meeting 27th January 2025

[Dominik Huber]

Hi Ralph,


in this context, we are discussing a dynamic process approach based on PSets and PSet operations (see Additional PSET query/manipulation functions).

The output of a PSet operation would be a list of PSet IDs that might refer to new processes and can be used to create new MPI groups/communicators.


Regards,

Dominik

________________________________
Von: mpiwg-sessions <mpiwg-sessions-bounces at lists.mpi-forum.org> im Auftrag von Ralph Castain via mpiwg-sessions <mpiwg-sessions at lists.mpi-forum.org>
Gesendet: Donnerstag, 23. Januar 2025 19:03:06
An: Ralph Castain via mpiwg-sessions
Cc: Ralph Castain
Betreff: Re: [mpiwg-sessions] Topics for Sessions WG meeting 27th January 2025

Just curious - if you get rid of MPI_Comm_spawn, then how does one generate new processes? I assume some other API must replace it, so mostly wondering what that API is. FWIW: generating new processes without automatically connecting them to
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Just curious - if you get rid of MPI_Comm_spawn, then how does one generate new processes? I assume some other API must replace it, so mostly wondering what that API is.

FWIW: generating new processes without automatically connecting them to the parent seems like a reasonable thing to do, so long as you provide back some info (e.g., a group ID or namespace) that allows you to do it later if you so choose.

Ralph


On Jan 23, 2025, at 8:09 AM, Pritchard Jr., Howard via mpiwg-sessions <mpiwg-sessions at lists.mpi-forum.org> wrote:

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Hello Folks,

Let me know if you have topics to discuss at our next Sessions WG meeting on Monday 1/27/25.

I’ve attached some slides with ideas for discussion by the WG this calendar year.  We can discuss these at the meeting.

Thanks,

Howard

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<image001.png>

Howard Pritchard
Research Scientist
HPC-ENV

Los Alamos National Laboratory
howardp at lanl.gov<mailto:howardp at lanl.gov>

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