NDLI: A data replica replacement algorithm based on value model in mobile grid environments

Content Provider	IEEE Xplore Digital Library
Author	Xiaodong Yan Huimin Xu Yajing Xu Lianxi Liu
Copyright Year	2005
Description	Author affiliation: Coll. of Telecommun. Eng., Beijing Univ. of Posts&Telecommun. (Xiaodong Yan; Huimin Xu; Yajing Xu)
Abstract	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. We also do some analysis and experiments on the algorithm. From analysis we can find that after we use value model, the whole grid system's data replica use probability is more increased. Experimental results also show that the proposed algorithm can obtain better performance for grid tasks to access data replicas and it is feasible and effective
Starting Page	4
Ending Page	4
File Size	292139
Page Count	1
File Format	PDF
ISBN	9810545738
DOI	10.1109/MTAS.2005.207148
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-11-15
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Mobility Organising Committee
Subject Keyword	Algorithm design and analysis data grid Access protocols Throughput History Research and development value model data repication High performance computing Fault tolerant systems Grid computing Mobile computing Arithmetic replica replacement
Content Type	Text
Resource Type	Article

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