WeeklyTelcon_20170103

Open MPI Weekly Telcon

Over holidays Howard put out a v2.0.2 RC2
- Tests all passed on x86. Took forever for loop-spawn to pass.
- Solaris compilers had some issues with dynamics.
discussed issue 2644
- Is this a blocker? No, but would like a 2.0.3 to fix this. May take a while to fix.
Had to do some hacking to build_rpm.sh script.
- Howard will talk to Jeff about this.
Discussed https://github.com/open-mpi/ompi/issues/2616 and https://github.com/open-mpi/ompi/issues/2643
- fixed https://github.com/open-mpi/ompi/pull/2625 (dup of 2616?)
Also discussed https://github.com/open-mpi/ompi/issues/1654
- Nathan will look at this week to see if it's a blocker for v2.0.2.

PMIx 1.2.0 was released
PMIx 1.2.1
- found an unexpected thing that boris and artem fixed.
- Some memory footprint things to fix (really bad on KNL or other high PPN nodes)
  - Need to have Nathan confirm that master branch works, then Ralph can backport memory fix to PMIx 1.2.x.
- Ralph can look at other simple things to improve memory footprint.
PMIx 2.0 doesn't address memory footprint.
PMIx master now has new better integration with debuggers in PMIx reference server. Will be MPIR v2 based, but just renaming of PMIx calls.

MTT problems
- server “stalled” over holiday
  - There is a script that runs every year to generate a new table.
  - Though Josh did that a few weeks ago. Josh
- no daily summaries being delivered (Brian will look at it)

Cisco -
ORNL - David Bernholt - manage folks who contribute to OMPI in past.
- New project - new Exa scale project.
  - Whole proposal - would be happy to show a few slides, in an upcoming telecon or face to face.
- Wants to get more connected with OMPI team. Most folks have been off for last few weeks.
UTK - focus on thread safety and GPU support.
Nvidia - Did some heavy modifications on their MTT cluster before Christmas. Seems a bit slower, and not sure why. Need to look at that.