计算机应用 ›› 2012, Vol. 32 ›› Issue (05): 1411-1414.

• 先进计算 • 上一篇    下一篇

NEMO模式系统基于“天河一号”的存储性能分析与优化

朱小谦1,2,孙超3,孟祥飞2,张保2,冯景华2   

  1. 1. 国防科学技术大学 计算机学院,长沙 410073
    2. 国家超级计算天津中心,天津 300457
    3. 天津大学 计算机科学与技术学院,天津 300072
  • 收稿日期:2011-11-03 修回日期:2011-12-17 发布日期:2012-05-01 出版日期:2012-05-01
  • 通讯作者: 朱小谦
  • 作者简介:朱小谦(1974-),男,湖南望城人,研究员,博士,CCF高级会员,主要研究方向:并行算法、高性能计算;孙超(1987-),男,河北沧州人,硕士,主要研究方向:并行计算;孟祥飞(1979-),男,山东临沂人,博士,主要研究方向:高性能计算;张保(1987-),男,河北衡水人,硕士研究生,主要研究方向:并行计算;冯景华(1984-),男,河北沧州人,硕士,主要研究方向:高性能计算。

Storage performance analysis and optimization of NENO system on TH-1A computer

ZHU Xiao-qian1,2,SUN Chao3,MENG Xiang-fei2,ZHANG Bao2,FENG Jing-hua2   

  1. 1. College of Computer, National University of Defense Technology, Changsha Hunan 410073, China
    2. National Supercomputer Center in Tianjin, Tianjin 300457, China
    3. School of Computer Science and Technology, Tianjin University, Tianjin 300072, China
  • Received:2011-11-03 Revised:2011-12-17 Online:2012-05-01 Published:2012-05-01
  • Contact: ZHU Xiao-qian

摘要: 在“天河一号”超级计算机上测试NEMO模式系统,针对NEMO模式在进行大量进程并发存储时所导致的整体应用性能下降问题,提出了并发进程分组输出优化方法。通过将大量并发存储的进程进行合理分组并排队输出,以解决大量进程同时读写文件时对存储资源的竞争所导致的存储效率下降问题。测试表明,在使用分组输出优化方法后,NEMO模式GYRE012算例的存储性能最高可提升33%以上,总体时间性能最高可提升28%以上。

关键词: “天河一号”, 并发进程分组输出, NEMO模式系统, GYRE012算例, Lustre文件系统

Abstract: A concurrent processes grouping output method was proposed to address the problem that storage performance decreases when testing Nucleus for European Modeling of the Ocean (NEMO) system with massive processes on TH-1A supercomputer. This method designed a reasonable control strategy based on TH-1A architecture and split processes into groups to alleviate the process competition of concurrency I/O. Testing result shows that the storage performance of the GYRE012 global sample can be improved more than 33% using the optimization method of concurrent processes grouping output, and in the mean time the total performance can be improved about 28%.

Key words: TH-1A, concurrent processes grouping output, Nucleus for European Modeling of the Ocean (NEMO)system, GYRE012 global sample, Lustre file system

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