We have a small Apple cluster running Hadoop. But another option we have, built into the Apple Server OS, is to use their Xgrid, which they promote for "supercomputer" scientific applications.
Any thoughts on the relative merits? I know that it depends on the application. For us, we want to do pattern recognition, turning raster images into collections of the objects we discover in the images. Another focus for us is NLP, esp. phrasal analysis. - Bob Futrelle
