[Beowulf] Heat transfer simulation

[Mark Hahn]

> The purpose of the simulation is just justify and demostrate the
> cost-performance and benefits of a beowulf cluster.

this is a terribly bad idea.  building a cluster MUST be driven
by real, demonstrable needs, preferably several independent 
researchers who are in physical pain because their simulations 
are too slow ;)

wanting a cluster and then trying to dig up some justification for it
is a doomed approach.

but yes, heat-flow simulations are commonly run on clusters; 
as far as I understand, they're not nearly as challenging 
as simulations that involve mass flow or phase change 
(gases, fluids, melting, etc).