| [impi](https://software.intel.com/en-us/intel-mpi-library/) | Intel MPI Library, compatible with MPICH ABI |
| [impi](https://software.intel.com/en-us/intel-mpi-library/) | Intel MPI Library, compatible with MPICH ABI |
| [mpi4py](http://mpi4py.scipy.org/docs) | MPI for Python (mpi4py) provides bindings of the Message Passing Interface (MPI) standard for the Python programming language, allowing any Python program to exploit multiple processors. |
| [MPICH](https://www.mpich.org/) | MPICH is a high-performance and widely portable implementation of the Message Passing Interface (MPI) standard (MPI-1, MPI-2 and MPI-3). |
| [MPICH](https://www.mpich.org/) | MPICH is a high-performance and widely portable implementation of the Message Passing Interface (MPI) standard (MPI-1, MPI-2 and MPI-3). |
| [OpenMPI](http://www.open-mpi.org/) | The Open MPI Project is an open source MPI-2 implementation. |
| [OpenMPI](http://www.open-mpi.org/) | The Open MPI Project is an open source MPI-2 implementation. |