The Open MPI Team, representing a consortium of research, academic, and
industry partners, is pleased to announce the release of Open MPI version 4.0.1.
v4.0.1 is a bug fix release that includes a variety of bug fixes and some
performance fixes. All users are encouraged to upgrade to v4.0.1 when
possible.
Version 4.0.1 can be downloaded from the main Open MPI web site:
https://www.open-mpi.org/software/ompi/v4.0/
NEWS
4.0.1 -- March, 2019
--------------------
- Update embedded PMIx to 3.1.2.
- Fix an issue with Vader (shared-memory) transport on OS-X. Thanks
to Daniel Vollmer for reporting.
- Fix a problem with the usNIC BTL Makefile. Thanks to George Marselis
for reporting.
- Fix an issue when using --enable-visibility configure option
and older versions of hwloc. Thanks to Ben Menadue for reporting
and providing a fix.
- Fix an issue with MPI_WIN_CREATE_DYNAMIC and MPI_GET from self.
thanks to Bart Janssens for reporting.
- Fix an issue of excessive compiler warning messages from mpi.h
when using newer C++ compilers. Thanks to @Shadow-fax for
reporting.
- Fix a problem when building Open MPI using clang 5.0.
- Fix a problem with MPI_WIN_CREATE when using UCX. Thanks
to Adam Simpson for reporting.
- Fix a memory leak encountered for certain MPI datatype
destructor operations. Thanks to Axel Huebl for reporting.
- Fix several problems with MPI RMA accumulate operations.
Thanks to Jeff Hammond for reporting.
- Fix possible race condition in closing some file descriptors
during job launch using mpirun. Thanks to Jason Williams
for reporting and providing a fix.
- Fix a problem in OMPIO for large individual write operations.
Thanks to Axel Huebl for reporting.
- Fix a problem with parsing of map-by ppr options to mpirun.
Thanks to David Rich for reporting.
- Fix a problem observed when using the mpool hugepage component. Thanks
to Hunter Easterday for reporting and fixing.
- Fix valgrind warning generated when invoking certain MPI Fortran
data type creation functions. Thanks to @rtoijala for reporting.
- Fix a problem when trying to build with a PMIX 3.1 or newer
release. Thanks to Alastair McKinstry for reporting.
- Fix a problem encountered with building MPI F08 module files.
Thanks to Igor Andriyash and Axel Huebl for reporting.
- Fix two memory leaks encountered for certain MPI-RMA usage patterns.
Thanks to Joseph Schuchart for reporting and fixing.
- Fix a problem with the ORTE rmaps_base_oversubscribe MCA paramater.
Thanks to @iassiour for reporting.
- Fix a problem with UCX PML default error handler for MPI communicators.
Thanks to Marcin Krotkiewski for reporting.
- Fix various issues with OMPIO uncovered by the testmpio test suite.
Thanks,
Your Open MPI release team
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