南方科技大学知识苑(SUSTech KC): Simulating the wenchuan earthquake with accurate surface topography on sunway taihulight

题名	Simulating the wenchuan earthquake with accurate surface topography on sunway taihulight
作者	Chen, Bingwei 1,3; Fu, Haohuan 2,3,6; Wei, Yanwen 2,3; He, Conghui 1,3; Zhang, Wenqiang 5; Li, Yuxuan 1,3; Wan, Wubin 3; Zhang, Wei3 ; Gan, Lin 1,3,6; Zhang, Wei4 ; Zhang, Zhenguo4 ; Yang, Guangwen 1,2,3; Chen, Xiaofei4
DOI	10.1109/SC.2018.00043
发表日期	2018-11-16
会议名称	International Conference for High Performance Computing, Networking, Storage and Analysis, SC
ISBN	978-1-5386-8385-9
会议录名称	2018 International Conference for High Performance Computing, Networking, Storage, and Analysis, SC 2018
页码	517-528
会议日期	2018-11-16
会议地点	Dallas, TX, United states
出版地	1515 BROADWAY, NEW YORK, NY 10036-9998 USA
出版者	Institute of Electrical and Electronics Engineers Inc.
摘要	This paper reports our efforts on performing a 50-m resolution earthquake simulation of the Wenchuan Earthquake (Ms 8.0, China) on Sunway TaihuLight. To accurately capture the surface topography, we adopt a curvilinear grid finite-difference method with a traction image free surface implementation and redesign the algorithm to reduce memory access costs for heterogeneous many-core architectures. We then derive a performance model of our algorithm to guide and drive the further optimization and tuning of various parameters using a genetic algorithm. A data layout transformation is also proposed to improve the direct memory access (DMA) efficiency further. Our efforts improve the simulation efficiency from 0.05% to 7.6%, with a sustained performance of 9.07 Pflops using the entire machine of the Sunway TaihuLight (over 10 million cores), and a large-scale simulation of the Wenchuan earthquake with accurate surface topography and improved coda wave effects. © 2018 IEEE.
关键词	Sunway Taihulight Computational Seismology Earthquake Ground Motions Parallel Scalability Accurate Surface Topography
学校署名	其他
语种	英语
相关链接	[来源记录]
收录类别	CPCI-S ; EI
资助项目	China Postdoctoral Science Foundation[2016M601031]
WOS研究方向	Computer Science ; Engineering
WOS类目	Computer Science, Hardware & Architecture ; Engineering, Electrical & Electronic
WOS记录号	WOS:000494258800040
EI入藏号	20191506770907
EI主题词	Digital Storage ; Earthquake Engineering ; Earthquakes ; Efficiency ; Finite Difference Method ; Genetic Algorithms ; Memory Architecture ; Metadata ; Surface Topography
EI分类号	Seismology:484 ; Computer Systems And Equipment:722 ; Data Storage, Equipment And Techniques:722.1 ; Production Engineering:913.1 ; Numerical Methods:921.6 ; Physical Properties Of Gases, Liquids And Solids:931.2 ; Materials Science:951
来源库	Web of Science
全文链接	https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=8665819
引用统计	被引频次[WOS]：11
成果类型	会议论文
条目标识符	http://sustech.caswiz.com/handle/2SGJ60CL/51066
专题	理学院_地球与空间科学系工学院_计算机科学与工程系
作者单位	1.Department of Computer Science and Technology, Tsinghua University, China 2.Ministry of Education, Key Lab. for Earth System Modeling, Department of Earth System Science, Tsinghua University, China 3.National Supercomputing Center in Wuxi, China 4.Department of Earth and Space Sciences, Southern University of Science and Technology, China 5.School of Earth and Space Sciences, University of Science and Technology of China, China 6.Laboratory for Regional Oceanography and Numerical Modeling, Qingdao National Laboratory for Marine Science and Technology, China
推荐引用方式 GB/T 7714	Chen, Bingwei,Fu, Haohuan,Wei, Yanwen,et al. Simulating the wenchuan earthquake with accurate surface topography on sunway taihulight[C]. 1515 BROADWAY, NEW YORK, NY 10036-9998 USA:Institute of Electrical and Electronics Engineers Inc.,2018:517-528.