This package provides Python bindings for the Message Passing Interface (MPI) standard. It is implemented on top of the MPI specification and exposes an API which grounds on the standard MPI-2 C++ bindings.

• Python 3.6 or above, or PyPy 7.2 or above.
• An MPI implementation like MPICH or Open MPI built with shared/dynamic libraries.

• Read the Docs: https://mpi4py.readthedocs.io/
• GitHub Pages: https://mpi4py.github.io/

• Mailing List: [email protected]
• Google Groups: https://groups.google.com/g/mpi4py
• GitHub Discussions: https://github.com/mpi4py/mpi4py/discussions

The testsuite is run periodically on

• GitHub Actions
• Read the Docs
• Azure Pipelines
• AppVeyor
• Circle CI
• Codecov

• L. Dalcin and Y.-L. L. Fang, mpi4py: Status Update After 12 Years of Development, Computing in Science & Engineering, 23(4):47-54, 2021. https://doi.org/10.1109/MCSE.2021.3083216
• M. Rogowski, S. Aseeri, D. Keyes, and L. Dalcin, mpi4py.futures: MPI-Based Asynchronous Task Execution for Python, IEEE Transactions on Parallel and Distributed Systems, 34(2):611-622, 2023. https://doi.org/10.1109/TPDS.2022.3225481