Parallelizing a Micromagnetic Program for Use on Multiprocessor Shared Memory Computers

被引：27

作者：

Donahue, Michael J. ^{[1
]}

机构：

[1] NIST, Gaithersburg, MD 20899 USA

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2009年 / 45卷 / 10期

关键词：

Magnetic materials; parallel algorithms; WRITE HEAD;

D O I：

10.1109/TMAG.2009.2023866

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

080906 [电磁信息功能材料与结构]; 082806 [农业信息与电气工程];

摘要：

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.

引用

页码：3923 / 3925

页数：3

共 10 条

[1]

Amdahl G., 1967, Proceedings of AFIPS Spring Join Computer Conference, P483, DOI DOI 10.1145/1465482.1465560

[2]

Donahue M.J., 1999, OOMMF USERS GUIDE VE

[3]

PARALLEL MICROMAGNETIC SIMULATIONS USING FOURIER METHODS ON A REGULAR HEXAGONAL LATTICE [J].