boostmpi is a high-quality Python wrapper around the Message Passing Interface (MPI). MPI is a standardized interface to libraries such as OpenMPI and MPICH that provide high-performance inter-process communication for distributed-memory computing.
boostmpi uses the Boost.MPI library, which gives MPI a very usable C++ interface. This C++ interface is then made accessible to Python via the Boost.Python library.
boostmpi was originally distributed as part of the Boost C++ library. This separate distribution aims to make the software more accessible.
boostmpi (born as Boost.MPI.Python) is currently maintained by Andreas Kloeckner but it was written by Doug Gregor.