Performance evaluation of magnetohydrodynamics simulation for magnetosphere on K computer

Keiichiro Fukazawa, Takeshi Nanri, Takayuki Umeda

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    2 Citations (Scopus)

    Abstract

    To use the massively parallel scalar type supercomputer for the large scale numerical magnetospheric simulation, we made performance evaluation of a three-dimensional Magnetohydrodynamic (MHD) simulation code for space plasma simulations of planetary magnetosphere on the K computer with 262,144 cores at RIKEN. For parallelization of the MHD code, we use four different methods, i.e., regular one-dimensional, two-dimensional, three-dimensional domain decomposition methods and a cache-hit type of three-dimensional domain decomposition method. We found that the onedimensional decomposition and cache-hit type of three-dimensional decomposition achieves the best performance and our MHD code can scale over 200,000 processes on the K computer.

    Original languageEnglish
    Title of host publicationAsiaSim 2013 - 13th International Conference on Systems Simulation, Proceedings
    PublisherSpringer Verlag
    Pages570-576
    Number of pages7
    ISBN (Print)9783642450365
    DOIs
    Publication statusPublished - 2013
    Event13th International Conference on Systems Simulation, AsiaSim 2013 - , Singapore
    Duration: Nov 6 2013Nov 8 2013

    Publication series

    NameCommunications in Computer and Information Science
    Volume402
    ISSN (Print)1865-0929

    Other

    Other13th International Conference on Systems Simulation, AsiaSim 2013
    Country/TerritorySingapore
    Period11/6/1311/8/13

    All Science Journal Classification (ASJC) codes

    • Computer Science(all)
    • Mathematics(all)

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