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 1

Keywords

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

ASJC Scopus subject areas

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

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