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Meeting 2022 01 13

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Thomas Naughton edited this page Jan 13, 2022 · 6 revisions

Meeting Link

Agenda

Attendance

Person Institution
Michael Karo Altair
Aurelien Bouteiller UTK
Josh Hursey IBM
Kathryn Mohror LLNL
Thomas Naughton ORNL
Ken Raffenetti ANL
Justin Wozniak ANL
Norbert Eiker JSC
Ralph Castain Nanook
David Solt IBM
Isaias Compres TUM

Notes

  • Next Meetings / Deadlines
    • PMIx ASC Monthly Meeting: 3/10/2022 (No Feb monthly meeting)
    • PMIX ASC Quarterly Meeting: 2/15/2022 and 2/17/2022
      • Announcement Deadline: Jan. 18, 2022
      • Agenda Finalization: Feb. 1, 2022
  • PMIx v4 Release Update (Ralph/Josh)
    • v4.2 planned for Mid/Late 2022 (as needed)
    • Few errata that may be included in release later this year
    • See comment  in v5 section about having IOF provisional in 4.2
  • PMIx v5 Release Update (Ken/Dave)
    • Intention is to have v5 this year, main remaining item still pending is the ABI topic
    • Next meeting (Jan-2022) is the last meeting for v5 reading (i.e., to have item included in v5)... well, maybe that’s the Q2-2022 meeting.  :-)
    • Discussion on ABI, we would like to have it in v5, but it may be more complicated than anticipated, it may not be necessarily a gating feature.
    • We already have an WIP PR on adding constants, the announce of finalization deadline for v5 will be loosely tied to the progress of this PR.
    • Reminder to Thomas for IOF attributes in standard, possibly pursue as provisional in v4.  Will sync w/ Ralph.
  • Working Group Updates:
    • Implementation agnostic document: Dave Solt
      • Working on preparing the PR for v5 about put/get/query impl. Agnostic
      • Next meeting slated for ABI discussion
    • Tools: Isaías A. Comprés
      • From brainstorming to prototyping and implementation
      • PMIx deeper integration in workload managers
        • Start with Slurm (lead by Ralph)
          • Currently only “mpi” plunging in Slurm
          • Other plugins will be added, such as the “launch” plugin
        • Later on others
          • Flux a high probability with TUM and LLNL
          • Talks with SGE and PBS Pro
      • Malleability prototyping (lead by Isaias)
        • Previous work from Ralph in Open PMIx
        • Deep-Sea project as driver
        • Need to collaborate with Dynamic Workflows WG
        • Collaboration with the MPI Sessions WG
          • As well as MPI Fault Tolerant WG (still forming)
      • Proposal coming in for either 5.0 or 5.1
        • First PR: Early March most likely
    • Dynamic workflows: Justin Wozniak
      • Intent to try and tie PMIx into workflow projects, e.g., ECP’s ExaWorks
  • ABI Update (Ken)
    • https://github.com/pmix/pmix-standard/issues/365 (general issue)
    • Slides
    • Discussion about memory use of key/nspaces; memory reduction of internal openPMIX impl. Is possible without changes, but the current API promotes libraries/end-users being wasteful. This may motivate an API change that does not waste as much memory
    • Announce on a variety of mailing lists to have advice from all stakeholders on this change
    • Meeting time for ABI discussion is Jan. 24th, announcement to follow
  • PMIx Standard Issues/PRs
  • PMIx Governance Issues/PRs

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