newbie question: how to get vertex separator from METIS_NodeND

I am just wondering is there any easy way to get the vertex separator info from the output of METIS_NodeND?
Thanks for the help!

RE: Look at the parmetis.c file

Look at the parmetis.c file in the library directory. It contains some separator routines that actually "mark" the separators are the 3rd partition (i.e., partition ID = 2).