WeeklyTelcon_20160620

Open MPI Weekly Telcon

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

Attendees

• Geoff Paulsen
• Jeff Squyres
• Arm Patinyasakdikul
• Geoffroy Valle
• Howard
• Natahn Hjelm
• Nysal
• Ralph
• Sylvain Jeaugey
• Todd Kordenbrock

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Agenda

Review 1.10

• Milestones: https://github.com/open-mpi/ompi-release/milestones/v1.10.3
• 1.10.3 has been released June 15th.
• Would like to start transitioning folks to use 2.0.0 as soon as we release.

Review 2.0.x

• Wiki: https://github.com/open-mpi/ompi/wiki/Releasev20
• Blocker Issues: https://github.com/open-mpi/ompi/issues?utf8=%E2%9C%93&q=is%3Aopen+milestone%3Av2.0.0+label%3Ablocker
  • Patcher differences - PR1237 (missing commits) and request stuff.
    • Travis failed, but looks internal to travis. Jeff kicked it.
• Milestones: https://github.com/open-mpi/ompi-release/milestones/v2.0.0
  • Open PR to fix Sparse Groups - Moved to 2.1.
• Found some missing Master commits needed for 2.x:
  • PR1794 and PR1795 needs to be merged to 2.x - merging right away.
  • Master PR1804 - Nathan closed because he'd already done it, and not needed in v2.x
  • Heterogeneous builds broken - listed as a 2.0.0 - Think this is solved
    • Master Issue 1694 - v2.0.0 is good to go. Can be fixed in 2.0.1
  • https://github.com/open-mpi/ompi/milestones/v2.0.0
    • Can all of this be pushed to 2.0.1 or later?
    • Went through list of these on call, and looks like most can be closed or pushed to future.
• So still waiting on
  • PR1237 on ompi-release - PR1794 and PR1795
  • and Jenkin's failure on Mellanox cluster.
    • thread_test 1.1 - running overlap test. Not great, but good at finding bugs.
  • Nysal brought up MACRO issue with new request work that is deciding usage of mutexs and atomics based on how it was build, not param passed into MPI_Init.
    • OPAL_ENABLE_MULTITHREADS - for v2.x (only) OMPI_ENABLE_THREAD_MULTIPLE (specific to OMPI layer)
    • Nysal will get everything in tonight.
  • Roll RC4 tomorrow, and diagnose Mellanox issue.
  • if we could release next Tuesday, that would be fantastic!

New Items

• Jeff: Contributor agreement for Broadcom received.
• Jeff+Nathan: Idea for new (Linux) memory component: mlockall(MCL_FUTURE) (idea from "Alex A. Granovsky" and "Audet, Martin" on users list)
  • On users mailling list - mlockall - any time I add memory to process, lock it. Size of process will never shrink.
    • seems like a trivial thing to add to a new patcher component.
• Please go fill out doodle for Summer Meeting: (https://github.com/open-mpi/ompi/wiki/Summer-2016%2CTBD)
  • Right now looks like 2nd week of August.

Review Master MTT testing (https://mtt.open-mpi.org/)

MTT Dev status:

Status Updates:

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Status Update Rotation

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

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