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IBM Journal of Research and Development

Issue 6 • Nov. 1994

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Displaying Results 1 - 8 of 8
  • Performance of a cyclic redundancy check and its interaction with a data scrambler

    Publication Year: 1994, Page(s):651 - 658
    Cited by:  Papers (1)  |  Patents (8)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (653 KB)

    This paper covers four topics: 1) the operation and performance of cyclic redundancy checks (CRCs); 2) the shortest error patterns of various weights that are undetectable by the ANSI/IEEE-standard 32-bit CRC (CRC32); 3) the general interaction of data scramblers with CRCs; and 4) the specific problems that arise in ATM communication due to the interaction of the scrambler with the degree-10 CRC p... View full abstract»

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  • Performance limits of electrical cables for intrasystem communication

    Publication Year: 1994, Page(s):659 - 672
    Cited by:  Papers (6)  |  Patents (10)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1171 KB)

    Three types of cables (commercially available high-performance coaxial and ribbon cables, and an experimental flexible-film cable) were investigated for intrasystem communication in high-performance computer and communication systems. The electrical properties of the cables and their respective connectors were obtained and compared through the use of time-domain techniques. Feasibility for use in ... View full abstract»

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  • A high-performance matrix-multiplication algorithm on a distributed-memory parallel computer, using overlapped communication

    Publication Year: 1994, Page(s):673 - 681
    Cited by:  Papers (21)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (700 KB)

    In this paper, we propose a scheme for matrix-matrix multiplication on a distributed-memory parallel computer. The scheme hides almost all of the communication cost with the computation and uses the standard, optimized Level-3 BLAS operation on each node. As a result, the overall performance of the scheme is nearly equal to the performance of the Level-3 optimized BLAS operation times the number o... View full abstract»

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  • Memory versus randomization in on-line algorithms

    Publication Year: 1994, Page(s):683 - 707
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1894 KB)

    On-line algorithms service sequences of requests, one at a time, without knowing future requests. We compare their performance with the performance of algorithms that generate the sequences and service them as well. In many settings, on-line algorithms perform almost as well as optimal off-line algorithms, by using statistics about previous requests in the sequences. Since remembering such informa... View full abstract»

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  • Recent publications by IBM authors

    Publication Year: 1994, Page(s):709 - 718
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (836 KB)

    The information listed here is supplied by the Institute for Scientific Information and other outside sources. Complete addresses are provided for the lead author of each publication. Journals and books are listed alphabetically by title; papers are listed sequentially for each journal. View full abstract»

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  • Recent IBM patents

    Publication Year: 1994, Page(s):719 - 734
    IEEE is not the copyright holder of this material | PDF file iconPDF (1054 KB)
    Freely Available from IEEE
  • Author index for papers in Volume 38

    Publication Year: 1994, Page(s):735 - 737
    IEEE is not the copyright holder of this material | PDF file iconPDF (187 KB)
    Freely Available from IEEE
  • Subject index for papers in Volume 38

    Publication Year: 1994, Page(s):739 - 743
    IEEE is not the copyright holder of this material | PDF file iconPDF (305 KB)
    Freely Available from IEEE

Aims & Scope

The IBM Journal of Research and Development is a peer-reviewed technical journal, published bimonthly, which features the work of authors in the science, technology and engineering of information systems.

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Editor-in-Chief
Clifford A. Pickover
IBM T. J. Watson Research Center