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Efficient Disk Allocation Schemes for Parallel Retrieval of Multidimensional Grid Data


Chung-Min Chen, Rakesh K. Sinha, and Randeep Bhatia

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Return to Performance of Spatio-Temporal Data Structures


Abstract

Declustering schemes enable parallel data retrieval by placing data blocks across multiple disk devices. Various declustering schemes have been proposed for multidimensional data to reduce response time of range queries. However, effcient schemes, which must be easy to compute and provide good performance, are only known for a restricted number of disks and dimensions. In this paper, we propose a novel technique to construct effcient multidimensional declustering schemes, for any number of disks and dimensions. Simulation results show that the new schemes outperform previously known best, non-exhaustive-search-based multidimensional declustering schemes.


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