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WeeklyTelcon_20160308

Jeff Squyres edited this page Nov 18, 2016 · 1 revision

Open MPI Weekly Telcon


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

Attendees

  • Jeff Squyres
  • Brad Benton
  • Dave Solt
  • Howard
  • Josh Hursey
  • Joshua Ladd
  • Nathan Hjelm
  • Ralph
  • Ryan Grant
  • Sylvain Jeaugey
  • Todd Kordenbrock

Agenda

Review 1.10

Review 2.0.x

Misc

  • MPI Forum - MPI_Info under discussion
    • Don't propagate infos with MPI_Comm_dup - use MPI_Comm_dup_with_info to propagate infos
    • Still discussion about MPI_Info_get/MPI_Info_set behavior
  • Open MPI Developer's Meeting
  • Nathan - Enabling thread_multiple all the time
    • PR 1397 - always enable MPI_THREAD_MULTIPLE support
    • Should we turn this on for everyone? Generally feeling is to accept this
    • Send another note to the devel list to give folks one last change to comment before commit.
  • Need to do some performance testing
    • v2.0.0 better MPI_THREAD_MULTIPLE correctness
    • focus on performance improvements in next v2.X series release

Review Master?

  • Remove invisibility for process group - SIGSTOP/SIGCONT delivery
    • PR 1431 - Change process group of children
    • See Open MPI Developer's Meeting notes for some more details.
    • IBM to look at this to see if we need to work it back in. See notes from developers meeting about path forward
  • Debug build
    • PR 1417 - warn if this is a debug build
    • Debug build is off by default
    • If you ask for it explicitly then do not issue a warning

MTT status:

  • Really need more people doing testing on v2.0 branch
  • One-sided failures seen in nightly testing - Nathan to look at it today
    • Issue 1427 Segmentation fault in Aint tests with IB

Status Updates:

  • Cisco
    • v2.0 release engineering
    • General bug fixing and review
  • ORNL - N/A
  • UTK - N/A
  • NVIDIA
    • Getting MTT working and reporting issues as they come up

Status Update Rotation

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

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