Hi all,

Thanks to all of you who participated in the September MPI Forum – either in person or remotely. I hope the hybrid mode worked out for everyone.

A few key points from the meeting as a summary for those who were there (please feel free to amend if necessary) or as update for those who couldn’t be there:

• We completed an assessment of all open and possibly gating issues for MPI 4.1 from all WGs – the slides covering the details are available from the meeting page
• Based on that (as most critical issues are close), we decided on a rough timeline to ratify MPI 4.1
• Last readings in March 2023
• Additional voting meeting April/May 2023 (virtual)
• Second votes during the June 2023 meeting (virtual)
• First ratification meeting September 2023 (with EuroMPI, see below)
• Additional virtual ratification meeting (virtual) in October 2023
• MPI 4.1 ready for SC 23
• To make this work, we need the WGs to complete the items on the slides by March 2023. The same is true for all tickets assigned on the MPI 4.1 github project board, which in many cases refers to chapter committees.
• The board is at: https://github.com/orgs/mpi-forum/projects/1
• We need to make sure chapter committees are active and have engaged members – we will go over this in December and replace members as needed – chapter chairs, please look at your committees and let us know if changes are needed.
• The discussion so far shows that virtual or hybrid meetings are here to stay – we are working on an update of the rules document to codify this, which will be discussed on 10/19 in the virtual meeting
• Nevertheless, we got good feedback that a) the hybrid part worked and b) that the folks in person found the personal interactions very valuable. We are therefore strongly considering holding the March meeting in person again with a hybrid component – I hope a lot of you would consider joining in person. To make the hybrid component palatable for the most folks, we are looking at locations in the eastern US time zone.
• EuroMPI 2023 and the 2023 September forum will be Bristol, UK – again co-located with Iwomp and with a virtual component and on the same schedule, which worked very well this year
• To keep the connection to Iwomp, EuroMPI and the forum in September 2024 will likely be in Perth, Australia (hosted by the Pawsey supercomputing center) – details to be done, but we strive again to offer a virtual component

This should cover the majority of larger (non-technical) topics covered – please let us know if there are any comments, corrections, approvals or concerns!

Thanks!

Martin

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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@in.tum.de