The early supercomputers used distributed computing and parallel processing to link processors together in a single machine, often called a main-frame. Exploiting the same technology, researchers are now using off-the-shelf PCs to produce computers with supercomputer performance. It is now possible to make a supercomputer for less than $40,000. Given this new affordability, a number of universities and research laboratories are experimenting with installing such Beowulf-type systems in their facilities.

This how-to guide provides step-by-step instructions for building a Beowulf-type computer, including the physical elements that make up a clustered PC computing system, the software required (most of which is freely available), and insights on how to organize the code to exploit parallelism. The book also includes a list of potential pitfalls.

Thomas L. Sterling is Senior Staff Scientist at the California Institute of Technology. John Salmon is Staff Scientist at the California Institute of Technology. Donald J. Becker is Staff Scientist at the Center for Excellence in Space Data and Information Sciences.