[OMPI devel] v2.1.5rc1 is out

[Jeff Squyres (jsquyres) via devel]

Per our discussion over the weekend and on the weekly webex yesterday, we're 
releasing v2.1.5.  There are only two changes:

1. A trivial link issue for UCX.
2. A fix for the vader BTL issue.  This is how I described it in NEWS:

- A subtle race condition bug was discovered in the "vader" BTL
  (shared memory communications) that, in rare instances, can cause
  MPI processes to crash or incorrectly classify (or effectively drop)
  an MPI message sent via shared memory.  If you are using the "ob1"
  PML with "vader" for shared memory communication (note that vader is
  the default for shared memory communication with ob1), you need to
  upgrade to v2.1.5 to fix this issue.  You may also upgrade to the
  following versions to fix this issue:
  - Open MPI v3.0.1 (released March, 2018) or later in the v3.0.x
series
  - Open MPI v3.1.2 (expected end of August, 2018) or later

This vader fix was warranted serious enough to generate a 2.1.5 release.  This 
really will be the end of the 2.1.x series.  Trust me; my name is Joe Isuzu.

2.1.5rc1 will be available from the usual location in a few minutes (the 
website will update in about 7 minutes):

https://www.open-mpi.org/software/ompi/v2.1/

-- 
Jeff Squyres
jsquy...@cisco.com

___
devel mailing list
devel@lists.open-mpi.org
https://lists.open-mpi.org/mailman/listinfo/devel

[OMPI devel] v3.1.2rc1 is posted

[Barrett, Brian via devel]

The first release candidate for the 3.1.2 release is posted at 
https://www.open-mpi.org/software/ompi/v3.1/

Major changes include fixing the race condition in vader (the same one that 
caused v2.1.5rc1 to be posted today) as well as:

- Assorted Portals 4.0 bug fixes.
- Fix for possible data corruption in MPI_BSEND.
- Move shared memory file for vader btl into /dev/shm on Linux.
- Fix for MPI_ISCATTER/MPI_ISCATTERV Fortran interfaces with MPI_IN_PLACE.
- Upgrade PMIx to v2.1.3.
- Numerous One-sided bug fixes.
- Fix for race condition in uGNI BTL.
- Improve handling of large number of interfaces with TCP BTL.
- Numerous UCX bug fixes.


Our goal is to release 3.1.2 around the same time as 2.1.5 (hopefully end of 
this week), so any testing is appreciated.


___
devel mailing list
devel@lists.open-mpi.org
https://lists.open-mpi.org/mailman/listinfo/devel