ParMGridGen-1.0 is a highly optimized serial and parallel library 
for obtaining a sequence of successive coarse grids that are well suited 
for geometric multigrid methods. 
The quality of the elements of the coarse grids is optimized using a 
multilevel framework.
The parallel library is based on MPI and is portable to 
a wide range of architectures.

WWW: http://www.mgnet.org/mgnet-codes-parmgridgen.html