Shinya Fushimi

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I’llis paper olll.lincs the system soflware of a parallel reI:ll.iollaI dnl.nhase machine GRACE. and describes its execul.inn and conlrol of rclnl.ional operalions based. on the data .s/rnom o~i.enlnrl processing. The system software is organized in a hicrnrchy. and the execulion of a relalional operation and il.s opcmnd tlnl.;~ are encapsulated and(More)
GREO is an attached database processor developed for midrange business computers. Since 1989, thousands of GREO’S have been shipped in the Japanese midrange market. GREO is the first commercial product of a high. speed sorting hardware, or a hardwan sorter. GREO implements the O(n) time pipelined merge sort algorithm with several enhancements [1]. To fully(More)
This paper proposes the multldlmenslonal cluster lng technique called GKD-tree method which IS fully adaptive to both of tuple and query dlstrlbutlons The method 1s bdsed on the theoretical analysis of the performance of multldlmensional clustermg Its algorithm and perIormance are described It IS shown that GKD tree method can largely reduce the average(More)
This paper outlines the overall architecture of a query processor for relational queries and describes the design and control of its major processing modules. The query processor consists of only four processing modules and a number of random-access memory modules. Each processing module processes tuples of relations in a bit-serial, tuple-parallel manner(More)
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