Title: Transparent on-demand co-allocation data access for grids

Authors: Po-Cheng Chen, Jyh-Biau Chang, Yi-Sheng Lin, Ce-Kuen Shieh, Yi-Chang Zhuang

Addresses: Department of Electrical Engineering, Institute of Computer and Communication Engineering, National Cheng Kung University, Tainan 70101, Taiwan. ' Department of Computer Science and Applications, Leader University, Tainan 70970, Taiwan. ' Department of Electrical Engineering, Institute of Computer and Communication Engineering, National Cheng Kung University, Tainan 70101, Taiwan. ' Department of Electrical Engineering, Institute of Computer and Communication Engineering, National Cheng Kung University, Tainan 70101, Taiwan. ' Home Network Technology Center, Industrial Technology Research Institute/South, Tainan 70955, Taiwan

Abstract: This paper presents a data sharing system called On-Demand data Co-Allocation (ODCA). ODCA integrates the advantages of the co-allocation concepts with the conventional on-demand data access scheme. It transfers the necessary file fragments from multiple data sources only when the application demands, thereby reducing data transmission time, wasted network bandwidth and required storage space. Moreover, it facilitates legacy applications to transparently access distributed grid data by using the native I/O system calls. The experimental results indicate that ODCA achieves superior performance in the turnaround time of data-intensive applications than the pre-staging and the on-demand access schemes.

Keywords: data grid; on-demand access; pre-fetching; data co-allocation download; pre-staging; grid computing; data sharing.

DOI: 10.1504/IJAHUC.2010.032997

International Journal of Ad Hoc and Ubiquitous Computing, 2010 Vol.5 No.4, pp.227 - 234

Available online: 06 May 2010 *

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