WeeklyTelcon_20220809

Open MPI Weekly Telecon ---

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

Attendees (on Web-ex)

• Austen Lauria (IBM)
• Geoffrey Paulsen (IBM)
• Jeff Squyres (Cisco)
• Brendan Cunningham (Cornelis Networks)
• Edgar Gabriel (UoH)
• Howard Pritchard (LANL)
• Josh Fisher (Cornelis Networks)
• Todd Kordenbrock (Sandia)
• William Zhang (AWS)
• Jan (Sandia -ULT support in Open MPI)
• Matthew Dosanjh (Sandia)
• Hessam Mirsadeghi (UCX/nVidia)
• Joseph Schuchart

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

• David Bernhold (ORNL)
• 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)
• Erik Zeiske
• Geoffroy Vallee (ARM)
• George Bosilca (UTK)
• Harumi Kuno (HPE)
• 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)10513
• Scott Breyer (Sandia?)
• Shintaro iwasaki
• Thomas Naughton (ORNL)
• Xin Zhao (nVidia)

---

v4.1.x

• v4.1.5
  • Schedule: targeting ~6 mon (Nov 1)
  • No driver on schedule yet.
• Potential CVE issue in libevent.. but might not need to do anything.
  • Worse case we'd just updage our libevent version.
  • Tracking down details.

v5.0.x

• Schedule:
  • PMIx and PRRTE changes coming at end of August.
    • Try to have bugfixes PRed end of August, to give time to iterate and merged.
  • Still using Critical v5.0.x Issues (https://github.com/open-mpi/ompi/projects/3) yesterday
• Issue 10641 Ralph changed the PRRTE branches (switching us to v3.2 branch)
  • Lots of changes from PRRTE v2.1 -> v3.2
  • Still working to get CI working
    • MTT still failing with SLURM.
    • Gone from segv in MPIRUN to resource detection.
  • Ralph doesn't have SLURM to help with.
  • Looking for someone with SLURM to help.
  • Austen will open an Issue for this.
• Does ANYONE use Open MPI's Java Bindings?
• Docs
  • mpirun --help is OUT OF DATE.
    • Have to do this relatively quickly, before PRRTE releases.
    • Austen, Geoff and Tomi will be
    • REASON for this, is because mpirun command line is in PRRTE.
• mpirun manpage needs to be re-written.
  • Docs are online and can be updates asyncronously.
  • Jeff posted PR to document runpath vs rpath
    • Our configure checks some linker flags, but there might be default in linker or in system that really governs what happens.

PRRTE

• Ralph is looking to release PRRTE v3.x by end of the month.
  • If Open MPI wants Java Bindings, we'd need to do some Java work in PRRTE before end of the month.

Main branch

• HAN / Adapt runs.
  • Post to Devel. Summary, and link to results.
  • Want to make these the default.
  • Geoff will send out.
  • Include a pointer on how to run these tests in YOUR environment.
• Incompatibilities in User Level threading that Jan
  • What's the schedule for fixes to get into v5.0.x
  • Will try to get PRs in by end of August and then iterate.

Accelerator framework

• William said yesterday that they wanted one more day of testing.
• sm_cuda component was moved into framework.
  • nVidia has some issues building, and will try again to test
• Accelerator framework Good first step, but will need to fix (super high level)
  • Does this framework allow us to get rid of sm_cuda altogether.

Attomics PRs.

• 10492 and link to 10487
  • Geoff STILL needs to test on ppc64le, will get to this, THIS week.
• Joseph will post some additional info thing in the ticket

MTT

Administrative tasks

• We're probably not getting together in person anytime soon.
  • So we'll send around a doodle to have time to talk about our rules.
  • Reflect the way we worked several years ago, but not really right now.
• we're to review the admin steering committee in July (per our rules):
  • https://github.com/open-mpi/ompi/wiki/Administrative-rules#administrative-steering-committee-asc
• we're to review the technical steering committee in July (per our rules):
  • https://github.com/open-mpi/ompi/wiki/Administrative-rules#technical-steering-committees
• We should also review all the OMPI github, slack, and coverity members during the month of July.
  • Jeff will kick that off sometime this week or next week.
• In the call we mentioned this, but no real discussion.

Face-to-face

• Wiki for face to face: https://github.com/open-mpi/ompi/wiki/Meeting-2022
  • Might be better to do a half-day/day-long virtual working session.
    • Due to company's travel policies, and convenience.
    • Could do administrative tasks here too.