EXPERIENCE
Distinguished Scientist and formerly (1996-2002) Deputy Director for SDSC and its National Partnership for Advanced Computational Infrastructure. Currently doing research in supercomputer performance evaluation and modeling. Formerly responsible for computing technology research within SDSC and computing resources across NPACI. Served as principal investigator on NSF grant and DARPA contract to evaluate a novel computer with multithreaded architecture.
Deputy Director for Research (1989-1996); Manager, Applications and Research Department (1987-1991); Manager, User Services Department (1985-1987). Directed research activities at SDSC, with particular emphasis on scalable parallel computing. Co-investigator on ARPA, NIH, and NSF grants involving scalable parallel computers. Organized symposia and workshops in high performance computing.
Manager, Plasma Transport Branch (1975-1985). Responsible for developing analytic and computational techniques for describing plasma transport in tokamaks. Developed a major transport code and applied it to the analysis of tokamak experiments. Responsible for developing an energy confinement database for the Doublet III tokamak.
Manager, Fuel Methods Department (1972-1975); and Physicist (1969-1972). Responsible for developing all computer codes used to design and analyze fuel for high-temperature gas-cooled reactors (HTGRs). Developed codes to solve reactor physics, flow and thermal analysis, optimization, and statistics problems. Participated in the planning, execution, and analysis of the pulsed-neutron experiments performed on the Fort St. Vrain HTGR.
Programmer. Improved numerical integration subroutines in large, orbit determination code.