NOTICE: Due to a lapse in annual appropriations, most of this website is not being updated. Learn more.

Form submissions will still be accepted but will not receive responses at this time. Sections of this site for programs using non-appropriated funds (such as NVLAP) or those that are excepted from the shutdown (such as CHIPS and NVD) will continue to be updated.

U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

PUBLICATIONS

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
Pub Type
Journals

Download Paper

Local Download

Keywords

fast Fourier transform, memory bandwidth, micromagnetics, parallel processing
Modeling and simulation research

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 October 2, 2025)

Issues

If you have any questions about this publication or are having problems accessing it, please contact [email protected].

Created September 22, 2009, Updated February 19, 2017
Was this page helpful?