The Open MPI community is pleased to announce the Open MPI v4.0.7 release. This release contains a number of bug fixes.
Open MPI v4.0.7 can be downloaded from the Open MPI website: https://www.open-mpi.org/software/ompi/v4.0/ Changes to v4.0.7 compared to v4.0.6: - Fix an issue with MPI_IALLREDUCE_SCATTER when using large count arguments. - Fixed an issue with POST/START/COMPLETE/WAIT when using subsets of processes. Thanks to Thomas Gilles for reporting. - Numerous fixes from vendor partners. - Fix a problem with a couple of MPI_IALLREDUCE algorithms. Thanks to John Donners for reporting. - Fix an edge case where MPI_Reduce is invoked with zero count and NULL source and destination buffers. - Use the mfence instruction in opal_atomic_rmb on x86_64 cpus. Thanks to George Katevenis for proposing a fix. - Fix an issue with the Open MPI build system using the SLURM provided PMIx when not requested by the user. Thanks to Alexander Grund for reporting. - Fix a problem compiling Open MPI with clang on case-insensitive file systems. Thanks to @srpgilles for reporting. - Fix some OFI usNIC/OFI MTL interaction problems. Thanks to @roguephysicist for reporting this issue. - Fix a problem with the Posix fbtl component failing to load. Thanks to Honggang Li for reporting. — [signature_61897647] Howard Pritchard Research Scientist HPC-ENV Los Alamos National Laboratory howa...@lanl.gov [signature_1108010516]<https://www.instagram.com/losalamosnatlab/>[signature_1019604069]<https://twitter.com/LosAlamosNatLab>[signature_892703168]<https://www.linkedin.com/company/los-alamos-national-laboratory/>[signature_1712015093]<https://www.facebook.com/LosAlamosNationalLab/>
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