PyMetis provides a python module interface to the Metis graph
partitioning and sparse matrix ordering library.

Currently only the METIS_PartMeshNodal function is implemented.

Build instructions:
Linux:
run make in the top pymetis directory.

Should the metis version change, the new metis package should be in a new
subdirectory. Metis 4.0 is in metis-4.0

The METIS_DIR= line in the makefile will need to be changed appropriately.

Windows:
Required: MinGW compiler, Cygwin Bash.

Run:

make for_win32

The precompiled metis for win32 should be in the $(METIS_DIR)-win32. E.g.
for metis-4.0, metis-4.0-win32

Other makefile targets:
clean:
removes all intermediate files.

realclean:
performs clean, then also removes the pymetis.so file.