SCHEDULE: NOV 13-19, 2010

ENTIRE WEEK SATURDAY SUNDAY MONDAY TUESDAY WEDNESDAY THURSDAY FRIDAY

Scalable Earthquake Simulation on Petascale Supercomputers

SESSION: ACM Gordon Bell Finalist Presentation I

EVENT TYPE: ACM Gordon Bell Finalist

TIME: 11:30AM - 12:00PM

SESSION CHAIR: Michael Norman

AUTHOR(S):Yifeng Cui, Kim B. Olsen, Thomas H. Jordan, Kwangyoon Lee, Jun Zhou, Patrick Small, Daniel Roten, Geoffrey Ely, Dhabaleswar K. Panda, Amit Chourasia, John Levesque, Steven M. Day, Philip Maechling

ROOM:394

ABSTRACT:
Petascale simulations are needed to understand the rupture and wave dynamics of the largest earthquakes at shaking frequencies required to engineer safe structures (> 1 Hz). Toward this goal, we have developed a highly scalable, parallel application (AWP-ODC) that has achieved “M8”: a full dynamical simulation of a magnitude-8 earthquake on the southern San Andreas fault up to 2 Hz. M8 was calculated using a uniform mesh of 435 billion 40-m3 cubes to represent the three-dimensional crustal structure of Southern California, in a 800 km by 400 km area comprising over 20 million people. This production run producing 360 sec of wave propagation sustained 220 Tflop/s for 24 hours on NCCS Jaguar using 223,074 cores. As the largest-ever earthquake simulation, M8 opens new territory for earthquake science and engineering—the physics-based modeling of the largest seismic hazards with the goal of reducing their potential for loss of life and property.

Chair/Author Details:

Michael Norman (Chair) - University of California, San Diego

Yifeng Cui - San Diego Supercomputer Center

Kim B. Olsen - San Diego State University

Thomas H. Jordan - University of Southern California

Kwangyoon Lee - San Diego Supercomputer Center

Jun Zhou - San Diego Supercomputer Center

Patrick Small - University of Southern California

Daniel Roten - San Diego State University

Geoffrey Ely - University of Southern California

Dhabaleswar K. Panda - Ohio State University

Amit Chourasia - San Diego Supercomputer Center