Performance analysis of MPI collective operations

Jelena Pješivac-Grbović, Thara Angskun, George Bosilca, Graham E. Fagg, Edgar Gabriel, Jack J. Dongarra

    Research output: Chapter in Book/Conference proceedingConference contribution

    Abstract

    Previous studies of application usage show that the performance of collective communications are critical for high-performance computing and are often overlooked when compared to the point-to-point performance. In this paper, we analyze and attempt to improve infra-cluster collective communication in the context of the widely deployed MPI programming paradigm by extending accepted models of point-to-point communication, such as Hockney, LogP/LogGP, and PLogP. The predictions from the models were compared to the experimentally gathered data and our findings were used to optimize the implementation of collective operations in the FT-MPI library.
    Original languageEnglish
    Title of host publicationProceedings - 19th IEEE International Parallel and Distributed Processing Symposium, IPDPS 2005|Proc. 19th IEEE Int. Parallel Distr. Proces. Symp.
    PublisherIEEE Computer Society
    Volume2005
    ISBN (Print)0769523129, 9780769523125
    DOIs
    Publication statusPublished - 2005
    Event19th IEEE International Parallel and Distributed Processing Symposium, IPDPS 2005 - Denver, CO
    Duration: 1 Jul 2005 → …

    Conference

    Conference19th IEEE International Parallel and Distributed Processing Symposium, IPDPS 2005
    CityDenver, CO
    Period1/07/05 → …

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