A Efficient Data Replica Replacement Algorithm for Mobile Grid

摘要：

One of the major problems in Mobile Grid environments is the optimal distribution and replication of data files,in order to improve and maintain a high overall throughput of Grid jobs that access files.A data replica replacement algorithm based on value model is proposed and the arithmetic method to calculate replica value is introduced.This algorithm adapts to the high variation environment in Mobile Grid environment The value of a data replica reflects the usage history of the cache and the variability of it We construct a data replica value evaluation system which makes those unstable or rarely used replicas first be deleted,when there is not enough storage space during replication.Experimental results show that the proposed algorithm can obtain better performance for grid tasks to access data replicas.

关键词： data replica mobile grid grid task

作者: Sun Bin Dong Yueli

作者单位: Department of Computer Science and Technology Dalian Neusoft Institute of Information Dalian,China

会议类型: 国际会议

会议名称: The 2nd IEEE International Conference on Advanced Computer Control(第二届先进计算机控制国际会议 ICACC 2010)

会议地点: 沈阳

会议语种:英文

页码: 510-512

在线出版日期: 2010-03-27（万方平台首次上网日期，不代表论文的发表时间）