James Larus is a Research Area Manager for programming languages and tools at Microsoft Research. He manages the Advanced Compiler Technology, Human Interaction in Programming, Runtime Analysis and Design, and Software Reliability Research groups and co-lead the Singularity research project. He joined Microsoft Research as a Senior Researcher in 1998 to start and, for five years, lead the Software Productivity Tools (SPT) group, which was one of the most innovative and productive groups in the areas of program analysis and programming tools. Before joining Microsoft, Larus was an Assistant and Associate Professor at the University of Wisconsin-Madison, where he co-led the Wisconsin Wind Tunnel research project with Professors Mark Hill and David Wood. This DARPA and NSF-funded project investigated new approaches to simulating, building, and programming parallel shared-memory computers. In addition, Larus's research covered a number of areas: new and efficient techniques for measuring and recording executing programs' behavior, tools for analyzing and manipulating compiled and linked programs, programming languages, tools for verifying program correctness, compiler analysis and optimization, and custom cache coherence protocols. Larus received a PhD from the University of California at Berkeley in 1989, and an AB from Harvard in 1980. Ravi Rajwar is a researcher in the Corporate Technology Group at Intel Corporation. His research interests include theoretical and practical aspects of computer architecture. Most recently, he has investigated resource-efficient microprocessors and architectural support for improving programmability of parallel software. Rajwar received a PhD from the University of Wisconsin-Madison in 2002, a MS from the University of Wisconsin-Madison in 1998, and a BE from the University of Roorkee, India, in 1994, all in Computer Science.