Early this year, Professor Joel Adams and student Tim Bron of Calvin College decided to build a Beowulf cluster. Not just any Beowulf cluster, but one that would be small enough and portable enough to take on-board an airplane. With just a budget of $2500, they managed to build a cluster capable of 26.24 GFLOPS that met their requirements.
Their writeup on Clustermonkey details the nitty-gritty, and also reveals that the same cluster could now be built for about half the price, due to the declining costs of the components used.
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