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Parallelizing a Micromagnetic Program for Use on Multi-processor Shared Memory Computers

Published

Author(s)

Michael J. Donahue

Abstract

Parallelization of a finite difference micromagnetic program on shared memory computer systems is studied. Efficiency is found to be limited by memory bandwidth, and techniques are introduced to reduce memory traffic. Computations are sped up by a factor of three with four processor cores; a factor of five is possible on some systems. This corresponds to a Karp-Flatt serial fraction of 5-10% for small core counts.
Citation
IEEE Transactions on Magnetics
Volume
45

Keywords

fast Fourier transform, memory bandwidth, micromagnetics, parallel processing

Citation

Donahue, M. (2009), Parallelizing a Micromagnetic Program for Use on Multi-processor Shared Memory Computers, IEEE Transactions on Magnetics, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=902207 (Accessed April 15, 2024)
Created September 22, 2009, Updated February 19, 2017