| OVALS海洋资料同化系统并行计算研究 |
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| 引用本文： | 卢风顺,宋君强,朱小谦.OVALS海洋资料同化系统并行计算研究[J].计算机工程与科学,2010,32(1):113-116. |
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| 作者姓名： | 卢风顺 宋君强 朱小谦 |
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| 作者单位： | 国防科学技术大学计算机学院,湖南,长沙,410073 |
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| 摘 要： | 海洋数值预报技术的发展与高性能计算密切相关。为提高OVALS海洋资料同化系统的时效性,本文实现了OVALS系统的并行化。在温盐资料同化模块并行化过程中,本文提出了层优先处理器划分算法,并研究了基于该算法的并行I/O、全局通讯等实现方法;在高度计资料同化模块并行化过程中,设计实现了基于预处理的非规则区域分解算法,较好地实现了OVALS并行计算负载平衡。数值实验表明,OVALS并行系统在36并行规模下取得了17.45的并行加速比。
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| 关 键 词： | OVALS 海洋资料同化 并行算法 处理器划分 非规则区域分解 |
| 收稿时间： | 2008-05-28 |
| 修稿时间： | 2008-10-10 |
A Study of the Parallel Computation of the OVALS Ocean Data Assimilation System |
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| LU Feng-shun,SONG Jun-qiang,ZHU Xiao-qian.A Study of the Parallel Computation of the OVALS Ocean Data Assimilation System[J].Computer Engineering & Science,2010,32(1):113-116. |
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| Authors: | LU Feng-shun SONG Jun-qiang ZHU Xiao-qian |
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| Affiliation: | School of Computer Science/a>;National University of Defense Technology/a>;Changsha 410073/a>;China |
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| Abstract: | High performance computing is closely related to the development of numerical oceanic prediction. In order to enhance the in-time property of the OVALS,this paper focuses on the parallelism of the OVALS system. In the process of parallelizing the ASSIMI part,the Layer-First-Processor-Allocation algorithm is proposed and the parallel I/O and global communication operations are implemented based on the LFPA algorithm. In the process of parallelizing the ASSssh part,an irregular domain decomposition algorithm ... |
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| Keywords: | OVALS ocean data assimilation parallel algorithm processor allocation irregular domain decomposition |
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