Abstract: Dr. Dosanjh's talk will explore the extreme data science occuring at the National Energy Research Scientific Computing (NERSC) Center. NERSC’s primary mission is to accelerate scientific discovery at the U.S. Department of Energy's Office of Science through high performance computing and data analysis. NERSC supports the largest and most diverse research community of any computing facility within the DOE complex, providing large-scale, state-of-the-art computing for DOE’S unclassified research programs in alternative energy sources, environmental science, materials research, astrophysics and other science areas related to DOE’s science mission.
NERSC’s new supercomputer, Cori, is deployed in Berkeley Laboratory’s new Computational Research and Theory (CRT) Facility. Cori has over 9300 manycore Intel Knight’s Landing processors, which introduce several technological advances, including higher intra-node parallelism; high-bandwidth, on-package memory; and longer hardware vector lengths. These enhanced features are expected to yield significant performance improvements for applications running on Cori. In order to take advantage of the new features, however, application developers will need to make code modifications because many of today’s applications are not optimized to take advantage of the manycore architecture and on-package memory.
Cori includes many enhancements to enable a rapidly growing extreme data science workload at NERSC. Cori has a 2000 Intel® Haswell processor partition with larger memory nodes to enable extreme data analysis. A fast internet connection lets users stream data from experimental and observational facilities directly into the system. A “Burst Buffer”, a 1.5 Petabyte layer of NVRAM, helps accelerate I/O. Cori also includes a number of software enhancements to enable complex workflows.
For the longer term we are investigating whether a single system can meet the simulation and data analysis requirements of our users.
Lunch will be served at 12:30pm on a first-come, first-served basis. The talk will begin promptly at 1pm.
Bio: Dr. Sudip Dosanjh is Director of the National Energy Research Scientific Computing (NERSC) Center at Lawrence Berkeley National Laboratory. NERSC's mission is to accelerate scientific discovery at the U.S. Department of Energy's Office of Science through high performance computing and extreme data analysis. NERSC deploys leading-edge computational and data resources for over 4,500 users from a broad range of disciplines. NERSC will be partnering with computer companies to develop and deploy pre-exascale and exascale systems during the next decade.
Previously, Dr. Dosanjh headed extreme-scale computing at Sandia National Laboratories. He was co-director of the Los Alamos/Sandia Alliance for Computing at the Extreme-Scale from 2008-2012. He also served on the U.S. Department of Energy's Exascale Initiative Steering Committee for several years. Dr. Dosanjh had a key role in establishing co-design as a methodology for reaching exascale computing. He has numerous publications on exascale computing, co-design, computer architectures, massively parallel computing and computational science.
He earned his bachelor’s degree in engineering physics in 1982, his master’s degree (1984) and Ph.D. (1986) in mechanical engineering, all from the University of California, Berkeley.
Free and open to the public. No registration required.