MPICH is a freely available, portable implementation of MPI, the Standard
for message-passing libraries.
MPICH-A Portable Implementation of MPI is a MPI Standard conforming library
that was developed by the Argonne National Laboratory. It allows different
processes across a network of workstations to communicate using specific
message passing functions. It includes librairies, parallel debuging tools
and docs.

This package provides the libraries that use the standard p4 device.