William Gropp is Director and Chief Scientist of the National Center for Supercomputing Applications and holds the Thomas M. Siebel Chair in the Department of Computer Science at the University of Illinois in Urbana-Champaign. He received his Ph.D. in Computer Science from Stanford University in 1982. He was on the faculty of the Computer Science Department of Yale University from 1982-1990 and from 1990-2007, he was a member of the Mathematics and Computer Science Division at Argonne National Laboratory. His research interests are in parallel computing, software for scientific computing, and numerical methods for partial differential equations. He is a Fellow of ACM, IEEE, and SIAM and a member of the National Academy of Engineering.