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GPU-accelerated computing of three-dimensional solar wind background
Feng XueShang; Zhong DingKun; Xiang ChangQing; Zhang Yao; Feng, XS (reprint author), Chinese Acad Sci, SIGMA Weather Grp, State Key Lab Space Weather, Ctr Space Sci & Appl Res, Beijing 100190, Peoples R China.
Department空间科学部
Source PublicationSCIENCE CHINA-EARTH SCIENCES
2013
Volume56Issue:11Pages:1864-1880
ISSN1674-7313
Language英语
KeywordSpace Weather Modeling Sip-cese Mhd Model Gpu Computing
AbstractHigh-performance computational models are required to make the real-time or faster than real-time numerical prediction of adverse space weather events and their influence on the geospace environment. 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 are obtained by the established GPU model with the magnetic field synoptic data as input. Meanwhile, the time-dependent solar surface boundary conditions derived from the method of characteristics and the mass flux limit are incorporated to couple the observation and the three-dimensional (3D) MHD model. The simulated evolution of the global structures for two Carrington rotations 2058 and 2062 is compared with solar observations and solar wind measurements from spacecraft near the Earth. The MHD model is also validated by comparison with the standard potential field source surface (PFSS) model. Comparisons show that the MHD results are in good overall agreement with coronal and interplanetary structures, including the size and distribution of coronal holes, the position and shape of the streamer belts, and the transition of the solar wind speeds and magnetic field polarities.
Indexed BySCI ; EI
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/4983
Collection空间科学部
Corresponding AuthorFeng, XS (reprint author), Chinese Acad Sci, SIGMA Weather Grp, State Key Lab Space Weather, Ctr Space Sci & Appl Res, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Feng XueShang,Zhong DingKun,Xiang ChangQing,et al. GPU-accelerated computing of three-dimensional solar wind background[J]. SCIENCE CHINA-EARTH SCIENCES,2013,56(11):1864-1880.
APA Feng XueShang,Zhong DingKun,Xiang ChangQing,Zhang Yao,&Feng, XS .(2013).GPU-accelerated computing of three-dimensional solar wind background.SCIENCE CHINA-EARTH SCIENCES,56(11),1864-1880.
MLA Feng XueShang,et al."GPU-accelerated computing of three-dimensional solar wind background".SCIENCE CHINA-EARTH SCIENCES 56.11(2013):1864-1880.
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