[Mpi-forum] Process towards MPI 4.0 / Final Steps

[Martin Schulz]

Hi Rolf,

Thanks for catching this - this must have slipped through due to the many different changes on this issue.

I agree, we need to at least keep the LIS changes, which reverts back the incorrect changes made in previous issues.

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 at in.tum.de
 
 

On 24.03.21, 23:13, "mpi-forum on behalf of Wesley Bland via mpi-forum" <mpi-forum-bounces at lists.mpi-forum.org on behalf of mpi-forum at lists.mpi-forum.org> wrote:

    Which thing specifically is broken in 4.0 that wasn’t broken in 3.1?

    > On Mar 24, 2021, at 5:09 PM, Rolf Rabenseifner via mpi-forum <mpi-forum at lists.mpi-forum.org> wrote:
    > 
    > Dear Martin, Bill and Wesley and all,
    > 
    >> Please let us know if you have any questions or concerns - we will also address
    >> this in the meeting next week.
    > 
    > Issue 466 is read at the February meeting and contains required corrections
    > to the current version of the draft (mpi-4-rc-june), which includes unintented
    > changes to the MPI-3.1 I/O interface. Therefore, it cannot be posponed to MPI-4.1.
    > 
    > Best regards
    > Rolf
    > 
    > ----- Original Message -----
    >> From: "Main MPI Forum mailing list" <mpi-forum at lists.mpi-forum.org>
    >> To: "Main MPI Forum mailing list" <mpi-forum at lists.mpi-forum.org>
    >> Cc: "Martin Schulz" <schulzm at in.tum.de>
    >> Sent: Wednesday, March 24, 2021 7:55:11 PM
    >> Subject: [Mpi-forum] Process towards MPI 4.0 / Final Steps
    > 
    >> Hi all,
    >> 
    >> For those of you who had to miss the virtual MPI Forum meeting today, we had a
    >> discussion on the updated process towards MPI 4.0 and how to handle the final
    >> tickets.
    >> 
    >> The recording is at (with the right time-marker to this discussion):
    >> https://youtu.be/h9MO-BmbfdQ?t=2125
    >> 
    >> The slides are at:
    >> https://github.com/mpi-forum/mpi-forum.github.io/raw/master/slides/2021/03/2021-03-24-rcm-frm-procedures.pptx
    >> 
    >> The quick summary is that we will limit the tickets that are still considered
    >> for MPI 4.0 to only emergency fixes that avoid breaking the standard and that
    >> are directly related to new items/procedures/concepts/text added specifically
    >> for MPI 4.0. Otherwise we fear (and we are seeing this already) that we may get
    >> clogged up with more and more changes that will not get the needed vetting and
    >> - equally important - that we run the risk of some issues not being accepted
    >> during the vote, which means the FRM is not the final document, which is
    >> problematic.
    >> 
    >> Wesley will be going through the board and classifying all issues based on that
    >> (see also slide 11) and then move tickets that do not meet the criteria to MPI
    >> 4.1 (changes that are already in, will stay , though). For this, we agreed to
    >> temporarily assume the role of a release manager that will advance tickets once
    >> they are ready (and that includes sufficient reviews by the CCs) and meet the
    >> criteria.
    >> 
    >> Note, though, this does not mean that the items tagged as 4.1 are postponed
    >> indefinitely - the plan is to start working on them right after MPI 4.0, if
    >> time permits, already in the June meeting. We should strive for getting a
    >> cleaned-up MPI 4.1 out the door soon, preferably before we add (m)any new
    >> items, but that part we will also discuss in the June meeting.
    >> 
    >> Please let us know if you have any questions or concerns - we will also address
    >> this in the meeting next week.
    >> 
    >> Thanks!
    >> 
    >> Martin
    >> (also in the name of Bill and Wesley)
    >> 
    >> 
    >> 
    >> --
    >> 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 at in.tum.de
    >> 
    >> 
    >> 
    >> 
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    > 
    > -- 
    > Dr. Rolf Rabenseifner . . . . . . . . . .. email rabenseifner at hlrs.de .
    > High Performance Computing Center (HLRS) . phone ++49(0)711/685-65530 .
    > University of Stuttgart . . . . . . . . .. fax ++49(0)711 / 685-65832 .
    > Head of Dpmt Parallel Computing . . . www.hlrs.de/people/rabenseifner .
    > Nobelstr. 19, D-70550 Stuttgart, Germany . . . . (Office: Room 1.307) .
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    > https://lists.mpi-forum.org/mailman/listinfo/mpi-forum

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