Dr. Steven Ashby is the Deputy Director for Science and Technology at the Pacific Northwest National Laboratory (PNNL), operated by Battelle for the U.S. Department of Energy (DOE). He is responsible for integrating PNNL's science and technology capabilities to address critical challenges in science, energy, the environment, and national security. Toward this goal, Dr. Ashby leads institutional strategic planning activities, stewards an $80 million discretionary research portfolio, and oversees Laboratory-wide efforts to elevate PNNL's standing in the broader scientific community.
Dr. Ashby currently chairs the DOE National Laboratory Chief Research Officers Council, one of several groups that supports the directors of the seventeen DOE national laboratories. He also remains active in the computational science community through participation in the Society for Industrial and Applied Mathematics (SIAM) Committee on Science Policy and in planning for an exascale simulation initiative.
Before joining PNNL in 2008, Dr. Ashby spent nearly 21 years at Lawrence Livermore National Laboratory (LLNL), most recently serving as Deputy Principal Associate Director for Science and Technology. He previously oversaw the activities of the 500-person Computing Applications and Research Department. Dr. Ashby was the founding director of LLNL's Center for Applied Scientific Computing, which was established in 1996 and has since matured into one of the world's premier scientific computing research organizations. He also led the Advanced Scientific Computing program for the Department of Homeland Security.
Dr. Ashby's research focused on computational mathematics and scalable numerical algorithms; he is considered an expert in polynomial iterative methods and adaptive preconditioning techniques for large sparse linear systems. He has published numerous papers, and he has worked in a variety of areas, including large-scale scientific simulation (with application to electromagnetics and subsurface flow and transport) numerical linear algebra, massively parallel computing, and applied computer and data sciences.
Dr. Ashby holds a B.S. in Mathematics/Computer Science from the University of Santa Clara. He earned his M.S. and Ph.D. in Computer Science from the University of Illinois.