Robert B. Graybill, President and CEO, has more than 40 years of HPC-related senior-level experience as a business leader, government program manager, and technology researcher. He recently gained valuable experience at the University of Southern California Information Sciences Institute working with the Council on Competitiveness following six years at DARPA, where among other assignments he headed the agency's High Productivity Computing Systems (HPCS) program. In this role he worked with firms ranging from new ventures to Fortune 100 companies, as well as with leading research institutions and academic centers. He was a member of the Senior Science Team for government HPC studies conducted by the Defense Science Board task force on DoD Supercomputing Needs and the High-End Computing Revitalization Task Force. Earlier, Mr. Graybill held increasingly responsible positions in engineering management, new business development, R&D development and other areas with companies including Westinghouse, Motorola, Martin Marietta Naval Systems, Martin Marietta Corporate Laboratories, Sanders, and Lockheed Martin Government Electronic Systems. Mr. Graybill was the key inventor and developer of Arbitron’s Portable People Meter (PPM) that revolutionized radio rating business. Mr. Graybill is currently a member of the Air Force Science Advisory Board.