Petascale Research in Earthquake System Science on Blue Waters (PressOn)

Thomas Jordan, University of Southern California

Usage Details

Jay Alameda, Liwen Shih, Dong Ju Choi, Dmitry Pekurovsky, Kim Olsen, Yifeng Cui, Mats Rynge, Karan Vahi, Philip Maechling, Robert Graves, Scott Callaghan, Thomas Jordan, Andriy Kot, Daniel Roten, Ricardo Taborda, Po Chen, Gideon Juve, Kevin Milner, Haydar Karaoglu, Patrick Small, Zheqiang Shi, Dawei Mu, Yigit Isbiliroglu, Kyle Withers, Dorian Restrepo, Efecan Poyraz, William Savran, David Gill, Heming Xu, Brittany Erickson, Naeem Khoshnevis, Shima Azizzadeh, Shiying Nie, Yongfei Wang, Qian Yao, Hari Radhakrishnan, Samuel Bydlon, Fabio Silva, Xin Song, Yu-Pin Lin, Kenneth Duru, Colin MacLean, Md Monsurul Huda, William Eymold, Marcus Noack, Alexander Breuer, Andrea Riano Escandon, Christine Goulet, Zhifeng Hu, Nan Wang, Jacquelyn Gilchrist, Keith Richards-Dinger, Bruce Shaw, Alan Juarez, Zachary Ross, Karianne Bergen, Clara Yoon

The Southern California Earthquake Center (SCEC) seeks to develop a predictive understanding of earthquake processes aimed at providing society with improved understanding of seismic hazards. In partnership with earthquake engineers, SCEC researchers are developing the ability to conduct end-to-end simulations (“rupture to rafters”) to extend this improved understanding of seismic hazard to an improved understanding of earthquake risks. SCEC researchers use several numerical modeling application codes that are capable of simulating a wide spectrum of earthquake and engineering processes including dynamic simulations of fault ruptures, seismic wave propagation simulation, probabilistic seismic hazard calculations, and structural response to high frequency ground motions. In order to reach the goal of performing physically realistic earthquake and engineering simulations, and completing these simulations within a reasonable time, these numerical modeling codes must be capable of sustained petaflops performance. In this project, the team will analyze and optimize the performance of three seismic and engineering numerical modeling application codes for Blue Waters. These codes will allow the researchers to (1) improve the resolution of dynamic rupture simulations by an order of magnitude to investigate realistic friction laws, near-fault stress states, and off-fault plasticity; (2) investigate the upper frequency limit of deterministic ground-motion prediction by simulating strong motions up to 3 Hz using realistic 3D structural models for Southern California; and (3) model building response to broadband ground motions for improved understanding of engineering response to ground motions. The integrated, end-to-end, capabilities of these research applications running on petascale computing resources represent an unprecedented opportunity for advances in our understanding and characterization of seismic hazard and risk.

Jordan vignette, originally prepared for NSF

http://www.scec.org/