cl-mpi
CL-MPI provides portable, CFFI-based Common Lisp bindings for the Message-Passing Interface (MPI). It was written by Marco Heisig.

CL-MPI enables parallel programming in Common Lisp using a message-passing model on either a distributed cluster of machines, or a single multicore machine. It has been successfully tested with SBCL, CCL and ECL, and fot the MPI implementations MPICH, OpenMPI and IntelMPI.

CL-MPI can also be used to provide "true" multiprocessing for some Common Lisp implementations which have no native threading capabilities.

Homepage: http://github.com/marcoheisig/cl-mpi

License: MIT