It appears that clusterit (this is what OSC uses or will use for its
new clusters), allows multiple head nodes.
It may be a good exercise to install it on the test cluster and run
some tests. Feasible?
http://www.garbled.net/clusterit.html
_______
Jaime E. Combariza, Ph.D.
Assistant Director Research Computing
http://www.muohio.edu/researchcomputing
Miami University
(513) 529-5080