Fix OMPIO issue limiting file reads/writes to 2GB. Thanks to
Richard Warren for reporting the issue.
At run time, automatically disable Linux cross-memory attach (CMA)
for vader BTL (shared memory) copies when running in user namespaces
(i.e., containers). Many thanks to Adrian Reber for raising the
issue and providing the fix.
Sending very large MPI messages using the ofi MTL will fail with
some of the underlying Libfabric transports (e.g., PSM2 with
messages >=4GB, verbs with messages >=2GB). Prior version of Open
MPI failed silently; this version of Open MPI invokes the
appropriate MPI error handler upon failure. See
https://github.com/open-mpi/ompi/issues/7058 for more details.
Thanks to Emmanuel Thomé for raising the issue.
Fix case where 0-extent datatypes might be eliminated during
optimization. Thanks to Github user @tjahns for raising the issue.
Ensure that the MPIR_Breakpoint symbol is not optimized out on
Fix OMPIO offset calculations with SEEK_END and SEEK_CUR in
MPI_FILE_GET_POSITION. Thanks to Wei-keng Liao for raising the
Fix corner case for datatype extent computations. Thanks to David
Dickenson for raising the issue.
Fix MPI buffered sends with the "cm" PML.
Update to PMIx v2.2.3.
Fix ssh-based tree-based spawning at scale. Many thanks to Github
user @zrss for the report and diagnosis.
Fix the Open MPI RPM spec file to not abort when grep fails. Thanks
to Daniel Letai for bringing this to our attention.
Handle new SLURM CLI options (SLURM 19 deprecated some options that
Open MPI was using). Thanks to Jordan Hayes for the report and the
OMPI: fix division by zero with an empty file view.
Also handle shmat()/shmdt() memory patching with OS-bypass networks.
Add support for unwinding info to all files that are present in the
stack starting from MPI_Init, which is helpful with parallel
debuggers. Thanks to James Clark for the report and initial fix.
Fixed inadvertant use of bitwise operators in the MPI C++ bindings
header files. Thanks to Bert Wesarg for the report and the fix.
Fix MPI one-sided 32 bit atomic support.
Add "naive" regx component that will never fail, no matter how
esoteric the hostnames are.
Allow individual jobs to set their map/rank/bind policies when
running LSF. Thanks to Nick R. Papior for assistance in solving the
Properly propagate errors to avoid deadlocks in MPI one-sided operations.
Fix data corruption in non-contiguous MPI accumulates over UCX.