Video #1 of 2:
http://www.youtube.com/watch?v=GmNKi6CoExM
Video #2 of 2:
http://www.youtube.com/watch?v=dAqDESEWMjM
Reference [1]: http://lists.mcs.anl.gov/pipermail/mpich-discuss/2009-October/005883.html
Reference [2]: http://lists.xensource.com/archives/html/xen-devel/2009-10/msg01440.html