Jack Deslippe

Jack Deslippe serves as the Application Performance Group Lead at the National Energy Research Scientific Computing Center (NERSC), part of Lawrence Berkeley National Laboratory. He has held this position since joining the laboratory in January 2006, currently working as Computer Systems Manager 1 in the HPC Department within Computing Sciences.

Dr. Deslippe earned his PhD in Physics from UC Berkeley in 2011, with research focused on materials physics and nano-science, specifically scaling many-body Green's function computational methods for studying optical properties of complex materials. His research spans multiple computational domains:

• Computer Software and Distributed Computing
• Artificial Intelligence and Image Processing
• Numerical and Computational Mathematics
• Pure Mathematics
• Materials Physics and Nano-science

His publication record demonstrates expertise in high-performance computing optimization, particularly in GPU acceleration, parallel computing strategies, and performance modeling across physics simulations, materials science, and bioinformatics. He has made significant contributions to the BerkeleyGW software package for many-body physics calculations, focusing on scalability and performance optimization for leadership-class computing systems.

As leader of NERSC's Application Performance Group, Dr. Deslippe plays a critical role in enabling scientific discovery through high-performance computing. His team works extensively with researchers to optimize computational workflows on NERSC's systems, including the transition to exascale architectures like the Cori system with Intel Knights Landing processors. His work bridges the gap between domain science and computer science, developing computational approaches that enable new scientific discoveries across multiple disciplines.