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    Performance of multicomputers using high-speed communication links

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    Author
    Rizvi, Haider Abbas
    Date
    1993
    Advisor
    Sinclair, James B.
    Degree
    Master of Science
    Abstract
    This thesis presents the results of a simulation study of the performance of a message-passing multicomputer using high-speed point-to-point communication links. The multicomputer system consists of IBM RS/6000 machines linked by 220 megabits per second fiber-optic links. This system is simulated using RIOSIM, a fast, accurate, and flexible execution-driven parallel architecture simulator. An accurate timing profiler, simulating the superscalar capabilities of the RS/6000 at runtime, generates dynamically timing estimates for the instructions executed. The simulation results are validated against actual measurements on a two-processor system, using a variety of algorithms. Results show that the errors are typically around 8%. The validated model is used to study systems with more than two processors. Simulation results indicate that this setup is suitable for coarse-grained parallel algorithms, some of which show almost linear speedups. For fine-grained algorithms, the high overhead in message passing proves to be a serious bottleneck, resulting in less than linear speedups.
    Keyword
    Electronics; Electrical engineering; Computer science
    Citation
    Rizvi, Haider Abbas. "Performance of multicomputers using high-speed communication links." (1993) Master’s Thesis, Rice University. https://hdl.handle.net/1911/13774.
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    • Rice University Electronic Theses and Dissertations [13409]

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    Managed by the Digital Scholarship Services at Fondren Library, Rice University
    Physical Address: 6100 Main Street, Houston, Texas 77005
    Mailing Address: MS-44, P.O.BOX 1892, Houston, Texas 77251-1892
    Site Map