siMPI:  Serial Implementation of MPI
siMPI is part of the PyMPI project.

PyMPI:  MPI Python project led by Pat Miller
Obtained from http://sourceforge.net/projects/pympi

Used and redistributed with permission from Pat Miller.
PyMPI and SiMPI are NOT products of Sandia National Laboratories.

Used by Zoltan for non-MPI Trilinos builds.