GPU Computing in Space Weather Modeling

	GPU Computing in Space Weather Modeling
	Feng, Xueshang; Zhong, DingKun; Xiang, Changqing; Zhang, Yao
	2013
会议名称	7th Annual International Conference on Numerical Modeling of Space Plasma Flows
会议日期	JUN 25-29, 2012
会议地点	Big Isl, HI
页码	131-139
通讯作者	Feng, XS (reprint author), Chinese Acad Sci, SIGMA Weather Grp, State Key Lab Space Weather, Ctr Space Sci & Appl Res, POB 8701, Beijing 100190, Peoples R China.
英文摘要	Space weather refers to conditions on the Sun and in the solar wind, magnetosphere, ionosphere, and thermosphere that can influence the performance and reliability of space-borne and ground-based technological systems and that affect human life or health. In order to make the real- or faster than real-time numerical prediction of adverse space weather events and their influence on the geospace environment, high-performance computational models are required. The main objective in this article is to explore the application of programmable graphic processing units (GPUs) to the numerical space weather modeling for the study of solar wind background that is a crucial part in the numerical space weather modeling. GPU programming is realized for our Solar-Interplanetary-CESE MHD model (SIP-CESE MHD model) by numerically studying the solar corona/interplanetary solar wind. The global solar wind structures is obtained by the established GPU model with the magnetic field synoptic data as input. The simulated global structures for Carrington rotation 2060 agrees well with solar observations and solar wind measurements from spacecraft near the Earth. The model's implementation of the adaptive-mesh-refinement (AMR) and message passing interface (MPI) enables the full exploitation of the computing power in a heterogeneous CPU/GPU cluster and significantly improves the overall performance. Our initial tests with available hardware show speedups of roughly 5x compared to traditional software implementation. This work presents a novel application of GPU to the space weather study.
收录类别	CPCI
会议主办者	Univ Alabama, Ctr Space Plasma & Aeronom Res, CEA CNRS, Maison Simulat
会议录	NUMERICAL MODELING OF SPACE PLASMA FLOWS ASTRONUM-2012
会议录出版者	ASTRONOMICAL SOC PACIFIC
语种	英语
ISBN号	978-1-58381-832-9
内容类型	会议论文
源URL	[http://ir.nssc.ac.cn/handle/122/4737]
专题	国家空间科学中心_空间科学部
推荐引用方式 GB/T 7714	Feng, Xueshang,Zhong, DingKun,Xiang, Changqing,et al. GPU Computing in Space Weather Modeling[C]. 见:7th Annual International Conference on Numerical Modeling of Space Plasma Flows. Big Isl, HI. JUN 25-29, 2012.