Arthur B (Barney) Maccabe is an Associate Professor in the Computer Science Department at the University of New Mexico where he is the director of the Scalable Systems Laboratory. In January, he accepted an appointment as the Associate Director of the UNM Center for High Performance Computing. Professor Maccabe's primary research interests are in the areas of systems software for massively parallel computing systems with an emphasis on the design of operating systems, communication protocols, and interfaces. He has significant experience in the design and implementation of lightweight kernels for massively parallel systems. Professor Maccabe was a principle architect of SUNMOS (Sandia/UNM OS) for the Intel Paragon and Puma/Cougar for the Intel Teraflop (ASCI/Red) at Sandia National Laboratories. In recent years, he has been involved in the development of the Portals API and research that attempts to apply the lessons learned in the development of specialized APIs and protocols to commodity protocols, e.g., TCP/IP.