[Mpi-forum] Issue 467 and I/O working group - Re: Call for In-Person Meeting Topics

[Skjellum, Anthony]

Rolf, We will have to revisit … I do not recall.
Tony

Anthony Skjellum, PhD
205-807-4968


On Feb 12, 2026, at 11:28 AM, Rolf Rabenseifner via mpi-forum <mpi-forum at lists.mpi-forum.org> wrote:



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Dear Wes, Tony, Quincey, and Shinji, (same message, but may be with better readable URLs) What is the status of https: //urldefense. us/v3/__https: //github. com/mpi-forum/mpi-issues/issues/467__;!!G_uCfscf7eWS!YlZsRWXWYN8WtAFvschhHy8DpQlo9Dy_iW425PaHLrSGBVC_Ocw4FzMJw1eTgOlz7QJlDjIak6jg84wNmnkFSwbvDrVPyx5vqNRAWg$
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Dear Wes, Tony, Quincey, and Shinji, (same message, but may be with better readable URLs)

What is the status of https://urldefense.us/v3/__https://github.com/mpi-forum/mpi-issues/issues/467__;!!G_uCfscf7eWS!YlZsRWXWYN8WtAFvschhHy8DpQlo9Dy_iW425PaHLrSGBVC_Ocw4FzMJw1eTgOlz7QJlDjIak6jg84wNmnkFSwbvDrVPyx5vqNRAWg$ ?
What is the status of MPI nonblocking collective shared-filepointer file read and write?

I cannot find any open or closed issue # about adding MPI_FILE_IREAD_ORDERED and MPI_FILE_IWRITE_ORDERED.
As i remember, it should have existed when MPI_FILE_IREAD_ALL and MPI_IREAD_AT_ALL
were added to MPI-3.0.

As I commented at https://urldefense.us/v3/__https://github.com/mpi-forum/mpi-issues/issues/467*issuecomment-3863886671__;Iw!!G_uCfscf7eWS!YlZsRWXWYN8WtAFvschhHy8DpQlo9Dy_iW425PaHLrSGBVC_Ocw4FzMJw1eTgOlz7QJlDjIak6jg84wNmnkFSwbvDrVPyx4MrrP0bw$ ,
the two nonblocking I/O routines MPI_FILE_IREAD_ORDERED and MPI_FILE_IWRITE_ORDERED
would be needed before deprecating all split collectives.
You may look at See MPI-5.0 Table 14.1 on page 650.

I'm only teaching MPI and I want to give correct hints about future directions.

Therefore, it would be helpful if the MPI forum and I/O working group can discuss this topic
and report the result of that discussion on the issue 467.

Best regards
Rolf


----- Ursprüngliche Mail -----
> Von: "Main MPI Forum mailing list" <mpi-forum at lists.mpi-forum.org>
> An: "Main MPI Forum mailing list" <mpi-forum at lists.mpi-forum.org>
> Gesendet: Freitag, 6. Februar 2026 16:53:54
> Betreff: [Mpi-forum] Call for In-Person Meeting Topics

> Hi all,
>
> If you have any topics for the in-person MPI Forum meeting coming up in a few
> weeks, please start announcing them here. Looking for working groups,
> plenaries, readings, and votes.
>
> Also, if you haven’t registered (particularly if you’re planning to attend in
> person), please do that here ASAP: https://urldefense.us/v3/__https://www.eventbrite.com/e/1981859425893__;!!G_uCfscf7eWS!YlZsRWXWYN8WtAFvschhHy8DpQlo9Dy_iW425PaHLrSGBVC_Ocw4FzMJw1eTgOlz7QJlDjIak6jg84wNmnkFSwbvDrVPyx4D563dNQ$
>
> Current registration can be found here: https://urldefense.us/v3/__https://www.mpi-forum.org/meetings/2026/03/attendance__;!!G_uCfscf7eWS!YlZsRWXWYN8WtAFvschhHy8DpQlo9Dy_iW425PaHLrSGBVC_Ocw4FzMJw1eTgOlz7QJlDjIak6jg84wNmnkFSwbvDrVPyx6AsO3ztw$
>
> Thanks,
> Wes
>
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--
Dr. Rolf Rabenseifner . . . . . . . . . . rolf.rabenseifner at hlrs.de .
High Performance Computing Center (HLRS) . . . ++49(0)711/685-65530 .
University of Stuttgart . . . . . . https://urldefense.us/v3/__http://www.hlrs.de/people/rabenseifner__;!!G_uCfscf7eWS!YlZsRWXWYN8WtAFvschhHy8DpQlo9Dy_iW425PaHLrSGBVC_Ocw4FzMJw1eTgOlz7QJlDjIak6jg84wNmnkFSwbvDrVPyx4ws22ynA$ .
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