• Artificial Intelligence and Machine Learning
  • Computer Vision, Speech, and Music Processing
  • Programming Languages
  • Systems and High Performance Computing
  • Teaching and Learning

My primary research interest is High Performance Computing, interpreted broadly. The driving question behind this interest is: "How do we write software that can get the highest performance out of a computer system?" The computer system could be a laptop or it could be a leadership-class supercomputer. Getting high performance out of a program requires cooperation from the programming paradigm, the programming language, the compiler, software libraries, the runtime system, the operating system &emdash; and from the programmer.

Of particular interest throughout most of my career has been scalable graph algorithms.

PhD, Massachusetts Institute of Technology, Electrical Engineering and Computer Science, 1992
SMEE, Massachusetts Institute of Technology, 1986
SBEE, Massachusetts Institute of Technology, 1984
computer and information sciences software engineering high performance computing
Association for Computing Machinery
IEEE Computer Society
Society for Industrial and Applied Mathematics