The Open MPI Team, representing a consortium of research, academic, and industry partners, is pleased to announce the release of Open MPI version 3.1.2.
Open MPI v3.1.2 is a critical bug fix release, fixing a subtle race condition in the vader shared memory communication channel. Open MPI v3.1.2 can be downloaded from the Open MPI web site: https://www.open-mpi.org/software/ompi/v2.1/ Items fixed in Open MPI 3.1.2 include the following: - 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 v3.1.2 or later to fix this issue. You may also upgrade to the following versions to fix this issue: - Open MPI v2.1.5 (expected end of August, 2018) or later in the v2.1.x series - Open MPI v3.0.1 (released March, 2018) or later in the v3.0.x series - 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. Thanks, Your Open MPI release team _______________________________________________ announce mailing list announce@lists.open-mpi.org https://lists.open-mpi.org/mailman/listinfo/announce
