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IEEE Micro

Issue 6 • Date Dec. 1991

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Displaying Results 1 - 5 of 5
  • VLSI accelerators for large database systems

    Publication Year: 1991, Page(s):8 - 20
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1428 KB)

    An experimental VLSI accelerator research prototype designed and fabricated for relational data filtering is described. It performs high-speed associative search and aggregation operations for formatted databases. For unformatted databases, an experimental fast string search VLSI accelerator that provides a few orders-of-magnitude improvement in text search speed has been developed. The VLSI accel... View full abstract»

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  • An associative accelerator for large databases

    Publication Year: 1991, Page(s):22 - 34
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1876 KB)

    The RAPID-1 (relational access processor for intelligent data), an associative accelerator that recognizes tuples and logical formulas, is presented. It evaluates logical formulas instantiated by the current tuple, or record, and operates on whole relations or on hashing buckets. RAPID- 1 uses a reduced instruction set and hardwired control and executes all comparisons in a bit-parallel mode. It s... View full abstract»

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  • A fine-grain architecture for relational database aggregation operations

    Publication Year: 1991, Page(s):35 - 43
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1024 KB)

    The design and simulation of a bit-sliced processor for relational database aggregation functions, are discussed. The processor, which addresses an important, computationally expensive problem in database computers, takes two tuples as input (one bit at a time) and returns two bits as output every clock cycle. A larger aggregation unit uses a number of identical slice processors, connected accordi... View full abstract»

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  • A parallel, scalable, microprocessor-based database computer for performance gains and capacity growth

    Publication Year: 1991, Page(s):44 - 60
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1726 KB)

    A multiback-end database supercomputer, or MDBS, that embodies the architecture and performance of an experimental database computer and a number of database processors and their corresponding database stores, is discussed. Two studies are described. One focused on the design and architecture of the microprocessor-based MDBS, and the other on the performance and benchmark results for various loads... View full abstract»

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  • Rinda: a relational database processor with hardware specialized for searching and sorting

    Publication Year: 1991, Page(s):61 - 70
    Cited by:  Papers (12)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1005 KB)

    Rinda, a database processor that accelerates nonindexed relational database queries, is described. Rinda is composed of content search processors and relational operational accelerating processors; the former, search rows stored in disk storage, and the latter sort rows stored in the main memory. The processors connect to a general-purpose host computer with channel interfaces. Performance results... View full abstract»

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Erik R. Altman
School of Electrical and Computer Engineering
IBM T.J. Watson Research Center