BLOCK TIME STEP STORAGE SCHEME FOR ASTROPHYSICAL N-BODY SIMULATIONS

	BLOCK TIME STEP STORAGE SCHEME FOR ASTROPHYSICAL N-BODY SIMULATIONS
	Cai, Maxwell Xu 1,2; Meiron, Yohai 1,2; Kouwenhoven, M. B. N.2; Assmann, Paulina 1,3,4; Spurzem, Rainer1,2,5
刊名	ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
	2015-08-01
卷号	219 期号:2
关键词	globular clusters: general methods: data analysis methods: numerical virtual observatory tools
英文摘要	Astrophysical research in recent decades has made significant progress thanks to the availability of various N-body simulation techniques. With the rapid development of high-performance computing technologies, modern simulations have been able to use the computing power of massively parallel clusters with more than 105 GPU cores. While unprecedented accuracy and dynamical scales have been achieved, the enormous amount of data being generated continuously poses great challenges for the subsequent procedures of data analysis and archiving. In this paper, we propose an adaptive storage scheme for simulation data, inspired by the block time step (BTS) integration scheme found in a number of direct N-body integrators available nowadays, as an urgent response to these challenges. The proposed scheme, namely, the BTS storage scheme, works by minimizing the data redundancy by assigning individual output frequencies to the data as required by the researcher. As demonstrated by benchmarks, the proposed scheme is applicable to a wide variety of simulations. Despite the main focus of developing a solution for direct N-body simulation data, the methodology is transferable for grid-based or tree-based simulations where hierarchical time stepping is used.
收录类别	SCI
语种	英语
WOS记录号	WOS:000361876600017
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/5576]
专题	国家天文台_星系宇宙学研究部
作者单位	1.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 2.Peking Univ, Kavli Inst Astron & Astrophys, Beijing 100871, Peoples R China 3.Univ Chile, Dept Astron, Santiago, Chile 4.Univ Concepcion, Dept Astron, Concepcion, Chile 5.Heidelberg Univ, Zentrum Astron, Astron Rechen Inst, D-69120 Heidelberg, Germany
推荐引用方式 GB/T 7714	Cai, Maxwell Xu,Meiron, Yohai,Kouwenhoven, M. B. N.,et al. BLOCK TIME STEP STORAGE SCHEME FOR ASTROPHYSICAL N-BODY SIMULATIONS[J]. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,2015,219(2).
APA	Cai, Maxwell Xu,Meiron, Yohai,Kouwenhoven, M. B. N.,Assmann, Paulina,&Spurzem, Rainer.(2015).BLOCK TIME STEP STORAGE SCHEME FOR ASTROPHYSICAL N-BODY SIMULATIONS.ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,219(2).
MLA	Cai, Maxwell Xu,et al."BLOCK TIME STEP STORAGE SCHEME FOR ASTROPHYSICAL N-BODY SIMULATIONS".ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES 219.2(2015).