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WeeklyTelcon_20190115
Geoffrey Paulsen edited this page Mar 12, 2019
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- Dialup Info: (Do not post to public mailing list or public wiki)
- Geoff Paulsen
- Jeff Squyres
- Brian Barrett
- Josh Hursey
- Ralph Castain
- Xin Zhao
- <oops, missed recording a few others on the call this week>
- Todd Kordenbrock
- Edgar Gabriel
- Howard Pritchard
- Joshua Ladd
- Aravind Gopalakrishnan (Intel)
- 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
-
Session work is complete (Nathan and Howard worked on)
- or check archives for MPI sessions working group.
- works with MPI_Init.
- Involved a lot of cleanup for setup and shutdown.
- Can keep it as prototype, or put it in, without headers.
- For MPI_Init/MPI_Finalize only apps, fully backward compatible.
- Initialize a "default" Session.
- Asking about adding this to master in mid-January
- Part of cleanup is to have reverse setup and shutdown.
- Cleanup sounds good. Well contained. Set of patches.
- Calling it "instances" inside of MPI, but we'll be renaming it if/when MPI standardizes sessions.
- Summary - patches for cleanup lets do them and look at them.
- Under work for sessions, need to look at a bit closer
- We can discuss sessions bindings in the future.
- Session init is all local, so timing should still be good.
Review All Open Blockers
- Released v2.1.6 last week.
- Will remove v2.1.6 from weekly discussions.
Review v3.0.x Milestones v3.0.3
- Scheduled 3.1.4 may of 2019? Probably earlier
- Brian will put out an RC on Friday
- PR6097 - conflict needs resolving in 3.?.x
- made cherry-pick easy in 3.1.x, but HARD in v3.0.x.
- Josh H will take a look.
- Should resolve https://github.com/open-mpi/ompi/issues/6198 before releasing
Review v3.1.x Milestones v3.1.0
- Brian will put out an RC on Friday
- Scheduled 3.1.4 april of 2019? Possibly earlier
- PR6097 - conflict needs resolving in 3.?.x
- made cherry-pick easy in 3.1.x
- Should resolve https://github.com/open-mpi/ompi/issues/6198 before releasing
Review v4.0.x Milestones v4.0.1
- Schedule: Need a quick turn around for a v4.0.1
- v4.0.0
-
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
- Removed symbols and nice message on master and v4.0.x does not give
a compile time error. What do we want?
- Should resolve https://github.com/open-mpi/ompi/issues/6198 before releasing
- Issue 6242 -
- Issue 6228 - Open MPI v4.0.2 would like PMIx 3.1.0 (still unreleased)
- PR 6191 - Aravind - asked Brian and Howard to take a look.
- Opal Issue - One version embedded in Open MPI, and another in PRTE.
- How do we manage that overlapping code?
- similar to libevent, and hwloc (prte, pmix, and ompi)
- Already affecting us, if you want an external PMIX, you have to use external libevent, and hwloc
- We have a decision in near future about libopal. Used by other packages, need to figure out a way out of this.
- Brian is writing a doc on an approach
- Some discussion.
- Libtool issue came up before or during supercomputing.
- Went around with many options - Ultimately will need to version all .so's
- need to explicitly version on each release branch going forward.
- WONT make opals on various release branches compatible with each other.
- Went around with many options - Ultimately will need to version all .so's
- Amazon AWS / Jenkins is still crippled
- Jenkins Broke the EC2 plugin, and there is a fix for EC2, but EC2 has not released the fix.
- https://wiki.jenkins.io/display/JENKINS/Amazon+EC2+Plugin
- Brian tried to build EC2 from scratch, but wasn't able to make it work.
- Scope of how this affects Open MPI Projects:
- release build process is broken
- only about 10% of CI tests right now.
- Status: we're currently stuck waiting on this EC2 fix.
- Jenkins Broke the EC2 plugin, and there is a fix for EC2, but EC2 has not released the fix.
- Ralph worked a lot on PMIx Tools interface, and documenting it for standard.
- Ralph should have 3 new chapters of PMIx v4 standard document in a few weeks.
- Ralph will send email to PMIx announce list.
- PMIX gropu, PMIX tools, and PMIx fabric
- Will release a version of PMIx v3.1.0 in next week or two for Open MPI v4.0.x
- 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)
- March 4th is next MPI Forum (then June)
- Target mid-late April Face to Face.
- Pick a date first, and then figure out where.
- Jeff will send out Doodle.
- 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
- Mellanox, Sandia, Intel
- LANL, Houston, IBM, Fujitsu
- Amazon,
- Cisco, ORNL, UTK, NVIDIA