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Implementation and performance evaluation of the parallel relational database server SDC-II

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4 Author(s)
T. Tamura ; Inst. of Ind. Sci., Tokyo Univ., Japan ; M. Nakamura ; M. Kitsuregawa ; Y. Ogawa

This paper presents the implementation and performance evaluation of the SDC-II, the Super Database Computer II. The SDC-II is a highly parallel relational database server, which consists of eight data processing modules interconnected by two networks, where each module contains up to seven processors connected by two busses and four disk drives. The SDC-II employs several key techniques to efficiently support join-intensive queries: a sophisticated parallel hash join algorithm named “the bucket spreading parallel hash join algorithm”: an efficient data passing mechanism in hardware and software, and an intelligent interconnection network which has an ability to generate a flat bucket distribution and to provide almost conflict free routing. The evaluation results obtained through the join queries with skewed data, show that the SDC-II works quite efficiently under various conditions attaining a high degree of parallelism

Published in:

Parallel Processing, 1996. Vol.3. Software., Proceedings of the 1996 International Conference on  (Volume:1 )

Date of Conference:

12-16 Aug 1996