Micromagnetic simulations of perpendicular recording head using the parallel fast multipole method specialized for uniform brick elements

Yasuhito Takahashi, Takeshi Iwashita, Hiroshi Nakashima, Shinji Wakao, Koji Fujiwara, Yoshiyuki Ishihara

    Research output: Contribution to journalArticle

    3 Citations (Scopus)

    Abstract

    This paper develops a parallel fast multipole method specialized for uniform brick elements to achieve large-scale micromagnetic simulations of a practical perpendicular recording head within acceptable computation time. In highly parallel computation, it is indispensable to equally distribute the computing load among processes so as to obtain the good parallel speedup. The load balancing technique which can be regarded as the domain decomposition method based on octree structure in the fast multipole method is discussed. The scalability of the parallel fast multipole accelerated micromagnetic simulation is investigated with 100 or more MPI processes.

    Original languageEnglish
    Article number6028147
    Pages (from-to)3805-3808
    Number of pages4
    JournalIEEE Transactions on Magnetics
    Volume47
    Issue number10
    DOIs
    Publication statusPublished - 2011 Oct

    Fingerprint

    Brick
    Domain decomposition methods
    Resource allocation
    Scalability

    Keywords

    • Fast multipole method (FMM)
    • load balancing
    • micromagnetic simulation
    • parallel computing
    • perpendicular recording head

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering
    • Electronic, Optical and Magnetic Materials

    Cite this

    Micromagnetic simulations of perpendicular recording head using the parallel fast multipole method specialized for uniform brick elements. / Takahashi, Yasuhito; Iwashita, Takeshi; Nakashima, Hiroshi; Wakao, Shinji; Fujiwara, Koji; Ishihara, Yoshiyuki.

    In: IEEE Transactions on Magnetics, Vol. 47, No. 10, 6028147, 10.2011, p. 3805-3808.

    Research output: Contribution to journalArticle

    Takahashi, Yasuhito ; Iwashita, Takeshi ; Nakashima, Hiroshi ; Wakao, Shinji ; Fujiwara, Koji ; Ishihara, Yoshiyuki. / Micromagnetic simulations of perpendicular recording head using the parallel fast multipole method specialized for uniform brick elements. In: IEEE Transactions on Magnetics. 2011 ; Vol. 47, No. 10. pp. 3805-3808.
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