| 基于蚂蚁算法的数据网格副本选择策略 |
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| 引用本文： | 孙敏,孙济洲,李明楚,于策.基于蚂蚁算法的数据网格副本选择策略[J].计算机工程与应用,2007,43(1):145-147,158. |
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| 作者姓名： | 孙敏 孙济洲 李明楚 于策 |
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| 作者单位： | 1. 天津大学,计算机科学与技术系,天津,300072
2. 大连理工大学,计算机科学系,辽宁,大连,116024 |
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| 摘 要： | 在分布着大量数据和计算能力的数据网格环境中,采用数据副本是提高网格应用可用性的重要方法。如何对数据网格中大量的数据副本进行优化选择是影响数据网格性能的重要因素。因此提出一种基于蚂蚁算法的数据网格副本选择策略,并在网格仿真器OptorSim中对该算法进行实现及性能分析。仿真实验结果表明该算法可以减少数据访问延迟及带宽消耗,并有效做到网格中存储节点间的负载平衡。
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| 关 键 词： | 副本选择 蚂蚁算法 数据网格 OptorSim |
| 文章编号： | 1002-8331（2007）01-0145-03 |
| 修稿时间： | 2006-08 |
Research of replica selection scheme based on ant algorithm in data grid |
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| SUN Min,SUN Ji-zhou,LI Ming-chu,YU Ce.Research of replica selection scheme based on ant algorithm in data grid[J].Computer Engineering and Applications,2007,43(1):145-147,158. |
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| Authors: | SUN Min SUN Ji-zhou LI Ming-chu YU Ce |
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| Affiliation: | 1.Computer Science Department,Tianjin University,Tianjin 300072, China; 2.Computer Science Department, Dalian University of Technology,Dalian, Liaoning 116024, China |
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| Abstract: | Replication of data is an important method to improve the availability of applications in distributed data-intensive Grid environment.How to choose the replicas is a key factor to affect the performance of data grid.Within this paper,an ant algorithm for file replica selection in data grid is proposed and discussed.It is implemented and the advantages of the new ant algorithm are investigated in a grid simulator called OptorSim after the simulator has been expanded.The evaluation demonstrates that this new ant algorithm can reduce data access latency,decrease bandwidth consumption and distribute storage site load. |
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| Keywords: | replica selection ant algorithm data grid OptorSim |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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