Software Technology Research
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App. Res. of Comp. Printed Article
Vol. 38, 2021 No. 3
826-830

3D seismic acoustic wave forward modeling based on domestic heterogeneous many-core processors

Chen Hongbo1,2
Qian Xuezhong1
Gan Lin2,3
1. Engineering Research Center of Internet of Things Technology Applications for 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.1001-3695.2020.03.0066

Abstract

3D seismic acoustic wave theory and calculation method are the basis of geological exploration research. By analyzing the propagation characteristics of acoustic waves in different media, it applied the 3D seismic acoustic wave forward modeling in exploration work. In order to solve the problem of huge numerical calculation and large memory consumption while proceeding 3D seismic wave equation staggered grid finite difference forwarding model, this paper studied and implemented the parallel optimization on the heterogeneous many-core processors of the Sunway TaihuLight super computer. Based on the implementation of a two-level parallel programming model by using MPI+Sunway Athread, it generated the DMA communication, 2.5D pipelining task division and other optimization strategies. The model with this improvement reduced the negative effects by bandwidth and greatly utilized the computing power. In large-scale conditions, it tackled the issue of low efficiency about program execution on SW26010 heterogeneous many-core processors. The experimental results reveal that the performance of parallelism of a single node is much better than that of a master core. Another example is the calculation of solving numerical stress is 80 times faster on the core group than that on the single master core. This experiment can keep a constant performance by using 266 240 cores, 5.5 GFlpos updates of field.

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.1001-3695.2020.03.0066
Publish at: Application Research of Computers Printed Article, Vol. 38, 2021 No. 3
Section: Software Technology Research
Pages: 826-830
Serial Number: 1001-3695(2021)03-036-0826-05

Publish History

[2021-03-05] Printed Article

Cite This Article

陈宏博, 钱雪忠, 甘霖. 基于国产众核处理器三维地震声波正演模拟 [J]. 计算机应用研究, 2021, 38 (3): 826-830. (Chen Hongbo, Qian Xuezhong, Gan Lin. 3D seismic acoustic wave forward modeling based on domestic heterogeneous many-core processors [J]. Application Research of Computers, 2021, 38 (3): 826-830. )

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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