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WeeklyTelcon_20190122

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Geoffrey Paulsen edited this page Mar 12, 2019 · 2 revisions

Open MPI Weekly Telecon

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

Attendees (on Web-ex)

  • Geoff Paulsen
  • Ralph Castain
  • Edgar Gabriel
  • Jeff Squyres
  • Aravind Gopalakrishnan (Intel)
  • Josh Hursey
  • Joshua Ladd
  • Xin Zhao

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

  • Todd Kordenbrock
  • Brian Barrett
  • Howard Pritchard
  • Nathan Hjelm
  • Dan Topa (LANL)
  • Thomas Naughton
  • Matias Cabral
  • Akshay Venkatesh (nVidia)
  • David Bernholdt
  • Geoffroy Vallee
  • Matthew Dosanjh
  • Arm (UTK)
  • George
  • Peter Gottesman (Cisco)
  • mohan

Agenda/New Business

  • Doodle to select week for OMPI face-to-face

  • Future of the Openib BTL on master: https://github.com/open-mpi/ompi/pull/6270

    • We won't have any verbs code at all in v5.0
    • --with-verbs might totally go away.
    • Several common components here.
    • hwloc might still need ibverbs

  • OpenIB - is only verbs based BTL that supports Instant on (no modex in MPI)

    • was it integrated? No not been integated.
    • UCX also was not integrated.
    • Component that needs to go into the pmix pnet framework.

  • github suggestion on email filtering

Minutes

Review All Open Blockers

Review v3.0.x Milestones v3.0.3

Review v3.1.x Milestones v3.1.0

Review v4.0.x Milestones v4.0.1

  • Schedule: Need a quick turn around for a v4.0.1
  • v4.0.0
  • Adding OSHMEM API - bug. Need to rev .so versions correctly
  • https://github.com/open-mpi/ompi/issues/6278
    • Removed symbols and nice message on master and v4.0.x does not give a compile time error. What do we want?
      • Do we want compile time error? Or just removed symbol and linker error
      • Could add a Check for C11, and use 'static assert' for nice message.
      • For older compilers could just NOT declare the function.
        • but that doesn't work for v4.0.x since the symbols in the library will be there, and the comiler will only issue a warning that about no prototype, but will succeed and link correctly.
        • It was decided that this is okay, if the C11 static assert check is in mpi.h. Most users set 'no prototype' as an error.
    • Tests on v4.0.x started passing, but possibly false positives. We will look at how the ibm tests are passing with #6278 issue on master and v4.0.x
  • Should resolve https://github.com/open-mpi/ompi/issues/6198 before releasing

v5.0.0

  • Any Schedule for this yet? Summer of 2019
  • Discussion of schedule depends on scope discussion
    • if we want to seperate Orte out for that? Might delay a bit
  • May want to open up release-manager elections.

Master

PMIx

  • There was a problem with PMIx v3.1.0 - should post another today.

MTT

  • Cisco showing build failure.
  • IBM test configure should have caused that.
  • Cisco has a one-sided info check that failed a hundred times.
    • Cisco install fail looks like a legit compile fail (ipv6 master)

New topics

  • March 4th is next MPI Forum (then June)
  • We have a new open-mpi SLACK channel for Open MPI developers.
    • Not for users, just developers...
    • email Jeff If you're interested in being added.

Review Master Master Pull Requests

  • didn't discuss today.

Review Master MTT testing

Oldest PR

Oldest Issue

Status Updates:

Status Update Rotation

  1. Mellanox, Sandia, Intel
  2. LANL, Houston, IBM, Fujitsu
  3. Amazon,
  4. Cisco, ORNL, UTK, NVIDIA

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