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WeeklyTelcon_20220510

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Geoffrey Paulsen edited this page May 11, 2022 · 1 revision

Open MPI Weekly Telecon ---

  • Dialup Info: (Do not post to public mailing list or public wiki)

Attendees (on Web-ex)

  • Geoffrey Paulsen (IBM)
  • Jeff Squyres (Cisco)
  • Austen Lauria (IBM)
  • Brendan Cunningham (Cornelis Networks)
  • Edgar Gabriel (UoH)
  • Hessam Mirsadeghi (UCX/nVidia)
  • Joseph Schuchart
  • Josh Fisher (Cornelis Networks)
  • Matthew Dosanjh (Sandia)
  • Todd Kordenbrock (Sandia)
  • William Zhang (AWS)

not there today (I keep this for easy cut-n-paste for future notes)

  • Josh Hursey (IBM)
  • Tommy Janjusic (nVidia)
  • Akshay Venkatesh (NVIDIA)
  • Artem Polyakov (nVidia)
  • Aurelien Bouteiller (UTK)
  • Brandon Yates (Intel)
  • Brian Barrett (AWS)
  • Charles Shereda (LLNL)
  • Christoph Niethammer (HLRS)
  • David Bernhold (ORNL)
  • Erik Zeiske
  • Geoffroy Vallee (ARM)
  • George Bosilca (UTK)
  • Harumi Kuno (HPE)
  • Howard Pritchard (LANL)
  • Joshua Ladd (nVidia)
  • Marisa Roman (Cornelius)
  • Mark Allen (IBM)
  • Matias Cabral (Intel)
  • Michael Heinz (Cornelis Networks)
  • Nathan Hjelm (Google)
  • Noah Evans (Sandia)
  • Raghu Raja (AWS)
  • Ralph Castain (Intel)
  • Sam Gutierrez (LLNL)
  • Scott Breyer (Sandia?)
  • Shintaro iwasaki
  • Thomas Naughton (ORNL)
  • Xin Zhao (nVidia)

v4.1.x

  • 4.1.4
    • Brian tagged an rc last week. MTT looks good. Will see about releasing next.
  • Mac OS issue - Brian and jeff haven't talked about if they want fix in v4.1.x
    • Way to do it better - George is looking into it.
  • 32bit environments File-view OMPIO fix.
    • Is it true that in v5.0 we don't care about 32bit anymore?
    • Edgar was debugging a runtime error with 32bit - if user sets default file view
      • 4MB is not a multiple of 12bytes (long double).

v5.0.x

  • Schedule: Rolling an RC this week.
  • Will update PMIx and PRRTE
    • Hope to include show_help aggrigate fix.

v4.0.x

  • No plan for update

Main branch

  • Accelerator stuff that William is working on, should be able to get out of draft.
  • Now that Rocm support is in main, Edgar hopes to make this a component of this framework.
  • PMIx asked if mpirun could add PMIx include paths to mpicc
    • OMPI Decided against today.
  • Issue 10323 - PMIx won't build with OMPI v5.0.x
    • Need clarity if old PMIx is needed for SLURM.
  • Old PMIx + new OMPI v5.0.x, can't compile
    • What's the consequences of various choices?
    • PMIx v4.0+ is needed for some intrinsics Sessions functionality.
      • So at runtime, we'd need to issue a warning.
    • Does Open MPI HAVE to support PMIx v3.2.x?
      • Could we require building with at least PMIx v4.0.x or later?
    • Two Issues 10341, 10345
    • Need to nail down the lowest version of PMIx for OMPI v5.0
      • PMIx v3.2 or v4.0?
    • https://github.com/open-mpi/ompi/wiki/OMPI-Third-Party-Packages
  • Perhaps we should have Minimum versions checked into a txt file that both
    • configure and docs could read from a common file.
    • config.py runs at beginning of Sphynx and could read in files, etc.

MTT

Face-to-face

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