System Development & Application
|
App. Res. of Comp. Printed Article
Vol. 38, 2021 No. 2
501-505

Parallel optimization of finite difference algorithm in CESM based on many-core processor

Chen Hongbo1,2
Qian Xuezhong1
Gan Lin2,3
Xu Jingheng2,3
Liu Xu1,2
1. Internet of Things Application Technology Engineering Research Center of Ministry of Education, School of Internet of Things Engineering, Jiangnan University, Wuxi Jiangsu 214000, China
2. National Supercomputing Center in Wuxi, Wuxi Jiangsu 214000, China
3. Tsinghua University, Beijing 100084, China
DOI: 10.19734/j.issn.1001-3695.2019.12.0674

Abstract

Aiming at the problems of the excessive memory-read redundancy and communication overhead on the parallel computing of applying the finite difference algorithm in CESM, this paper proposed several optimization schemes, included data reconstruction according to different data structures, computing core group and pipeline communication. These schemes solved the deficiency of lacking shared buffer in the process of reading data and low bandwidth utilization when the finite difference algorithm in CESM was transplanted to SW26010 heterogeneous many-core processor. The experiments demonstrate that performance improvement of as high as 21.2x can be achieved by applying the proposed algorithm and optimization strategies.

Foundation Support

国家自然科学基金资助项目(61673193)
中央高校基本科研业务费专项资金资助项目(JUSRP51635B,JUSRP51510)

Publish Information

DOI: 10.19734/j.issn.1001-3695.2019.12.0674
Publish at: Application Research of Computers Printed Article, Vol. 38, 2021 No. 2
Section: System Development & Application
Pages: 501-505
Serial Number: 1001-3695(2021)02-034-0501-05

Publish History

[2021-02-05] Printed Article

Cite This Article

陈宏博, 钱雪忠, 甘霖, 等. 基于国产众核架构CESM中有限差分计算优化 [J]. 计算机应用研究, 2021, 38 (2): 501-505. (Chen Hongbo, Qian Xuezhong, Gan Lin, et al. Parallel optimization of finite difference algorithm in CESM based on many-core processor [J]. Application Research of Computers, 2021, 38 (2): 501-505. )

About the Journal

  • Application Research of Computers Monthly Journal
  • Journal ID ISSN 1001-3695
    CN  51-1196/TP

Application Research of Computers, founded in 1984, is an academic journal of computing technology sponsored by Sichuan Institute of Computer Sciences under the Science and Technology Department of Sichuan Province.

Aiming at the urgently needed cutting-edge technology in this discipline, Application Research of Computers reflects the mainstream technology, hot technology and the latest development trend of computer application research at home and abroad in a timely manner. The main contents of the journal include high-level academic papers in this discipline, the latest scientific research results and major application results. The contents of the columns involve new theories of computer discipline, basic computer theory, algorithm theory research, algorithm design and analysis, blockchain technology, system software and software engineering technology, pattern recognition and artificial intelligence, architecture, advanced computing, parallel processing, database technology, computer network and communication technology, information security technology, computer image graphics and its latest hot application technology.

Application Research of Computers has many high-level readers and authors, and its readers are mainly senior and middle-level researchers and engineers engaged in the field of computer science, as well as teachers and students majoring in computer science and related majors in colleges and universities. Over the years, the total citation frequency and Web download rate of Application Research of Computers have been ranked among the top of similar academic journals in this discipline, and the academic papers published are highly popular among the readers for their novelty, academics, foresight, orientation and practicality.

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