Microwulf is a personal, portable Beowulf cluster, providing over 26 Gflops of measured performance, for less than $2500. Its dimensions are just 11″ x 12″ x 17″, making it small enough to fit on one’s desktop or in a suitcase.
Microwulf: A Personal, Portable Beowulf Cluster
I so want ot build one of these. I can think of a couple of things that will need a lot of processing power that would be useful to do. Like proccessing very large piles of cases.