David Barkai is an HPC (High Performance Computing) computational architect for Intel Corporation. He has also been a member of the Distributed Solutions Lab of Intel's Corporate Technology Group, a content architect for the Intel Developer Forum conference and a software scientist in the Microcomputer Software Lab. Before joining Intel in 1996, David worked for 25 years in the field of scientific and engineering supercomputing for Control Data Corporation, Cray Research Inc., Supercomputer Systems Inc., and NASA Ames Research Center. David holds a Ph.D. in theoretical physics and has more than 20 publications as papers, conference proceedings, and textbook contributions on the subjects of physics, numerical methods, and computer applications and architectures. Most recently he authored the book "Peer-to-Peer Computing: Technologies for Sharing and Collaborating on the Net" (Intel Press, 2001) and other articles on related topics.