libmpl1 3.1-5build1 (amd64 binary) in ubuntu wily

 MPICH is a high-performance and widely portable implementation of the
 Message Passing Interface (MPI) standard (both MPI-1 and MPI-2). It
 efficiently supports different computation and communication platforms
 including commodity clusters, SMPs, massively parallel systems, and
 high-speed networks.
 .
 This package includes shared libraries of mpl part of MPICH.