MPI (the Message Passinag Interface) is
a widely used standard for distributed-memory programming on HPC
(High Performance Computing) systems. MPI allows exchanging data
(_messages_) between programs running in parallel. There are several
high-quality open source MPI implementations (e.g. MPICH, MVAPICH,
OpenMPI) as well as a variety of closed-source implementations.
These libraries can typically make use of high-bandwidth low-latency
communication hardware such as InfiniBand.
This library mpi-hs provides Haskell bindings for MPI. It is based
on ideas taken from
haskell-mpi,
Boost.MPI
for C++, and MPI for
Python.
mpi-hs provides two API levels: A low-level API gives rather
direct access to the actual MPI API, apart from certain "reasonable"
mappings from C to Haskell (e.g. output arguments that are in C
stored via a pointer are in Haskell regular return values). A
high-level API simplifies exchanging arbitrary values that can be
serialized.
Note that the automated builds on
Hackage will currently always fail
since no system MPI library is present there. However, builds on
Stackage should succeed -- if not, there
is an error in this package.
