Adolfy Hoisie is a laboratory Fellow, and Chief Scientist for computing at PNNL. He spent 14 years at Los Alamos where he directed the Center for Advanced Architectures and Usable Supercomputing as well as the Advanced Computing Laboratory. From 1987 to 1997, he was a researcher at Cornell University. His area of research is performance evaluation of high-performance architectures. He has published extensively, lectured at numerous conferences and workshops, often as an invited speaker, taught tutorials in this field at important events worldwide, and organized numerous workshops. He was the winner of the Gordon Bell Award in 1996, and co-author to the SIAM monograph on performance optimization, and the edited volume on Engineering the Grid.