Jeff Brown has been a member of the technical staff at Los Alamos National Laboratory since 1989 and is currently the program manager for computer science within the Advanced Simulation and Computing (ASCI) program at LANL. As such, Jeff oversees the research development and deployment of system software targeted for emerging and next generation large scale high performance platforms at L:ANL such as Q and the linux-based "pink" system. Previously Jeff led the development of the Los Alamos Debugger (ldb) and a team that established the first workstation cluster based production system at LANL. Prior to joining LANL, Jeff spent five years as a site analyst and system software developer for Cray Research.