4.6.2 Distributed-memory parallelization

The distributed-memory parallelization in FEMLISP is based on the well-known standard MPI, for which a Common Lisp interface exists in the form of the cl-mpi library developed by Alex Fukunaga and Marco Heisig.

On top of cl-mpi, FEMLISP implements the higher-level library ddo, which allows to make objects distributed between processors, and keeps track of their relations when they are changed or even deleted locally.

More about cl-mpi and ddo together with a report on a serious practical application can be found in Heisig-Neuss 2017.