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Alternative TitleA High-Performance Distribution Method of Astronomical Data Based on MPI +CUDA
方兵1; 邓辉1; 张晓丽1; 梅盈2; 石聪明1; 陈晓林1; 戴伟1,2; 吴静平1; 王锋1,2
Source Publication天文研究与技术(Astronomical Research & Technology)
Contribution Rank第2完成单位
Indexed ByCSCD
Keyword图像重建 mpi+gpu 数据分发


Other Abstract

The appearance of massive astronomical data has brought a lot of challenges to the development of astronomy software. In recent years, with the development of parallel computing technology, MPI+GPU mode has become the main mode for current high performance astronomical data processing gradually. For the problem of how to improve reconstruction performance in reconstruction of solar high resolution image, this paper has made systematic research on data reading and data distribution method. During traditional MPI parallel processing, master process cuts original image into sub-blocks, and then delivers sub-blocks into each sub-process for reconstruction, the results after reconstruction will be returned to the master process. When the number of sub-process is big and calculation nodes are few, this data distribution process will increase the time for communication significantly and affect the efficiency of the whole reconstruction process. This paper has proposed a tree data distribution method under MPI+CUDA and offered basic ideas and realization method of the algorithm. Experimental results have shown that tree distribution mode nearly doubles the speed than generally adopted plane distribution mode; its achievements provide certain reference for the development and processing of massive astronomical data.

Funding Project国家自然科学基金[U1531132] ; 国家自然科学基金[U1631129] ; 国家自然科学基金[11403009]
Funding Organization国家自然科学基金[U1531132, U1631129, 11403009]
Subject Area天文学 ; 天文学其他学科 ; 计算机科学技术 ; 计算机应用
MOST Discipline Catalogue理学 ; 理学::天文学
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Document Type期刊论文
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GB/T 7714
方兵,邓辉,张晓丽,等. 一种基于MPI+CUDA的高性能天文数据分发方法[J]. 天文研究与技术(Astronomical Research & Technology),2017,14(4):481-487.
APA 方兵.,邓辉.,张晓丽.,梅盈.,石聪明.,...&王锋.(2017).一种基于MPI+CUDA的高性能天文数据分发方法.天文研究与技术(Astronomical Research & Technology),14(4),481-487.
MLA 方兵,et al."一种基于MPI+CUDA的高性能天文数据分发方法".天文研究与技术(Astronomical Research & Technology) 14.4(2017):481-487.
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