David Barkai is an HPC (High Performance Computing) computational architect for Intel corporation. He also held a number of positions within Intel research labs, and was a content architect for the Intel Developer Forum conference. Before joining Intel in 1996, David worked for over 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. 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. In one of his latest major projects David was central to the deployment of one of the largest supercomputers in production today – the NASA Columbia system.