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Errh and FT working group reading and vote announcement Dec'23 voting meeting
by Aurelien Bouteiller 14 Nov '23

14 Nov '23

Dear MPI Forum members, The MPI Error Handling and Fault Tolerance working group would like to announce the following items for consideration: No-no reading and 1st vote: =========================== 1. Add MPI_COMM_AGREE (ulfm/slice2) Issue link: https://github.com/mpi-forum/mpi-issues/issues/582 No-no diff: https://github.com/mpi-forum/mpi-standard/commit/58283a760a35934c0331744f82… Reading: ======== 1. Add MPI_COMM_SHRINK (ulfm/slice3) Issue link: https://github.com/mpi-forum/mpi-issues/issues/583 Reading text diff: https://github.com/mpi-forum/mpi-standard/pull/877/commits/ce23bf08367783ec… 2. Define process failure fault model Issue link: https://github.com/mpi-forum/mpi-issues/issues/816 Reading text diff: https://github.com/mpi-forum/mpi-standard/pull/947/commits/2f482d2ca7178031… Best Regards, Aurelien -- Aurelien Bouteiller, Ph.D. Innovative Computing Laboratory; The University of Tennessee; 1122 Volunteer Blvd.; Claxton suite 203; 37996, Knoxville, TN, USA +1 865 974 9308 (p); +1 865 974 8296 (f); Claxton 316 (f2f)

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Reading announcement for 12/23 MPI forum meeting
by Pritchard Jr., Howard 08 Nov '23

08 Nov '23

Hi All, The sessions WG would like to do a first reading of a proposal concerning MPI_GROUP_FROM_SESSION_PSET: Pull request https://github.com/mpi-forum/mpi-standard/pull/938 Related issue https://github.com/mpi-forum/mpi-issues/issues/811 Thanks, Howard ------- [signature_61897647] Howard Pritchard Research Scientist HPC-ENV Los Alamos National Laboratory howardp(a)lanl.gov<mailto:[email protected]> [signature_2885868313]<https://www.instagram.com/losalamosnatlab/>[signature_4172373081]<https://twitter.com/LosAlamosNatLab>[signature_1295465616]<https://www.linkedin.com/company/los-alamos-national-laboratory/>[signature_2127446337]<https://www.facebook.com/LosAlamosNationalLab/>

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Erratum Reading
by Jim Dinan 08 Nov '23

08 Nov '23

Hi All, The hybrid WG would like to bring forward the following erratum to MPI 4.1 for reading at the next meeting: Clarify mpi_memory_alloc_kinds for the world process model https://github.com/mpi-forum/mpi-standard/pull/946 Cheers, ~Jim.

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Virtual Meeting Today
by Jim Dinan 08 Nov '23

08 Nov '23

Hi All, We'll meet today to discuss the proposed memory allocation kinds erratum: https://github.com/mpi-forum/mpi-standard/pull/946 Cheers, ~Jim.

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Two Procedures Document Changes
by Wes Bland 06 Nov '23

06 Nov '23

Hi all, I’d like to announce a couple of proposals to update the procedures document to be read at the December meeting. The first was discussed back in March and while I created the PR right away, I forgot to schedule the reading. This one merges the definition of side documents and the procedures document. Now all docs are either the MPI Standard or a side document. Issue: https://github.com/mpi-forum/mpi-issues/issues/696 PR: https://github.com/mpi-forum/procedures/pull/9 The second is to simplify the procedures of the FRM to remove the extra vote where we vote on whether to repeat the FRM (the vote at the previous meeting where we had to vote “No” to continue with MPI 4.1). Issue: https://github.com/mpi-forum/mpi-issues/issues/813 PR: https://github.com/mpi-forum/procedures/pull/10 Thanks, Wes

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MPI 4.1 RC GitHub Updates
by Wes Bland 06 Nov '23

06 Nov '23

Hi all, Now that we’ve finished MPI 4.1, I’ve merged the mpi-41-rc branch back into the mpi-4.x branch and deleted the RC branch as it’s no longer needed. Before doing this, I changed the base branch for all remaining PRs on the mpi-41-rc branch to point to the mpi-4.x branch. From this point forward, you may go back to using the mpi-4.x branch as the basis for your pull requests. For now, we will continue to use mpi-4.x and not mpi-5.x as we still only have one PR that’s been voted in for MPI 5.0 and it’s much simpler to hold off on merging that until we start getting more MPI 5.0 PRs done while we simultaneously work on MPI 4.2. If you had an outstanding PR that was based on the RC branch, the GitHub pull request has a box at the top that says something like (using #943 as an example): "devreal wants to merge 1 commit into mpi-forum:mpi-4.x from devreal:mpi41-rma-gt”. In this example, "mpi-forum:mpi-41-rc” is the base branch and "devreal:mpi41-rma-gt” is the target branch. I’ve changed all of the base branches to point to the right place. This doesn’t actually change anything in the Git repository, just the way GitHub shows it. That means that you shouldn’t need to do anything special on your end. The next time you want to update your PR, you can just rebase or merge as you would have before. git fetch —all git rebase mpi-forum/mpi-4.x or git fetch —all git merge mpi-forum mpi-4.x If you have any trouble, let me know and I’ll be happy to help. I’ve also replaced the mpi-4.1 label with mpi-4.2 for all remaining open issues (unless it’s an errata for mpi-4.1), and I’ve closed the MPI 4.1 project board and moved everything over to MPI 4.2. We can discuss the scope of MPI 4.2 and MPI 5.0 at a future meeting to decide if some of this should be shifted around, but it’s a good landing spot for now. Thanks, Wes

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December 2023 MPI Forum Meeting
by Wes Bland 06 Nov '23

06 Nov '23

Hi all, It seems like just last week that we had an MPI Forum meeting and yet there’s another one coming up soon to shift to the MPI 4.2 and 5.0 efforts! The registration link for the meeting is here: https://forms.gle/VnUm9kEdYumc8bmr9 Also, please send your reading/plenary/vote announcements out to the list. Thanks, Wes

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MPI 4.1 Published
by Martin Schulz 03 Nov '23

03 Nov '23

Dear MPI Forum Community, For all of you who could not join us yesterday, I am happy and excited to announce that we finalized and then ratified the MPI 4.1 Standard yesterday! The document is already online at: https://www.mpi-forum.org/docs/mpi-4.1/mpi41-report.pdf Many thanks to all of you for contributing to MPI 4.1 and making it possible to get this version out before SC23. Special thanks to Wes and Bill who wrangled with git and Latex issues until the very end. I know this was a lot of work, both regarding new functionality and all the clean-up items (which may not look like that much on paper, but I think will really help the readability and sustainability of the standard), as well as the tough final push! This is really a significant accomplishment and it wouldn’t have been possible without the dedication, time and expertise from this group! If you are at SC23, please join us for the MPI Forum BoF (Tuesday 12:15-13:15 local Denver time) where we will present MPI 4.1 to the HPC community. If we get critical mass, we could also attempt a group photo at this time! Also, please help publicize the new standard through your various channels! If there are any particular ideas that we could do as a whole forum, please let us know as well! Thanks again and I am looking forward to continuing to work with all of you towards our next milestones MPI 4.2 and MPI 5.0! Martin PS: As we finished our agenda items for this meeting yesterday, the fourth and last day of the voting meeting is cancelled. Enjoy the weekend! -- Prof. Dr. Martin Schulz, Chair of Computer Architecture and Parallel Systems Department of Informatics, TU-Munich, Boltzmannstraße 3, D-85748 Garching Member of the Board of Directors at the Leibniz Supercomputing Centre (LRZ) Email: schulzm(a)in.tum.de

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Errata reading for December 23 meeting
by Pritchard Jr., Howard 30 Oct '23

30 Oct '23

HI All, We had a PR that got stuck and did not get into the current MPI-41-RC. As a plan B, I’d like to do an errata reading at the December ’23 meeting for a change-log related item: Pull request https://github.com/mpi-forum/mpi-standard/pull/899 Related issue: https://github.com/mpi-forum/mpi-issues/issues/778 Thanks, Howard ------- [signature_61897647] Howard Pritchard Research Scientist HPC-ENV Los Alamos National Laboratory howardp(a)lanl.gov<mailto:[email protected]> [signature_568045215]<https://www.instagram.com/losalamosnatlab/>[signature_3647202021]<https://twitter.com/LosAlamosNatLab>[signature_254260304]<https://www.linkedin.com/company/los-alamos-national-laboratory/>[signature_3176230336]<https://www.facebook.com/LosAlamosNationalLab/>

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Reminder: Special Voting Meeting this week
by Martin Schulz 29 Oct '23

29 Oct '23

Hi all, Just as a quick reminder, we have our special voting meeting for MPI 4.1 this week. If you plan to attend, but haven’t registered, yet, please do so as soon as possible The link is, as usual, on the forum logistics page. Also, please note: As usual, we meet from 9am to 1pm US central time (zoom link from the agenda) As daylight savings time ended in Europe over the weekend, this is now 3-7pm European Standard Time We meet Tuesday-Friday (not Monday-Thursday) See you all on Tuesday, Thanks, Martin -- Prof. Dr. Martin Schulz, Chair of Computer Architecture and Parallel Systems Department of Informatics, TU-Munich, Boltzmannstraße 3, D-85748 Garching Member of the Board of Directors at the Leibniz Supercomputing Centre (LRZ) Email: schulzm(a)in.tum.de

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