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Release notes available at <https://www-lb.open-mpi.org/software/ompi/major-changes.php>. Notes: - The MPI C++ bindings were deprecated in the MPI-2.2 standard in 2009, and removed from the MPI-3.0 standard in 2012. The MPI C++ bindings were then removed from Open MPI v5.0.0 in 2022; - ofi (libfabric) was explicitly disabled in this port - I don’t know why but kept it this way; - ROMIO has been disabled (See <https://github.com/open-mpi/ompi/issues/9715>); - 32 bits platforms are not supported: this port has been repocopied to net/openmpi4 for them.
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Open MPI is a project combining technologies and resources from several
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other projects (FT-MPI, LA-MPI, LAM/MPI, and PACX-MPI) in order to
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build the best MPI library available. A completely new MPI-3.1 compliant
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implementation, Open MPI offers advantages for system and software
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vendors, application developers and computer science researchers.
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Open MPI is based on an open component architecture allowing modular
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replacement of many system components without recompilation.
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On 32 bits platforms, please see the legacy version net/openmpi4.
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See also <https://github.com/open-mpi/ompi>.
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