Micromagnetic analysis of shielded write heads using symmetric multiprocessing systems

Yasushi Kanai; Kazuya Koyama; Manabu Ueki; Toshio Tsukamoto; Kazuetsu Yoshida; Simon John Greaves; Hiroaki Muraoka

doi:10.1109/TMAG.2010.2045883

Micromagnetic analysis of shielded write heads using symmetric multiprocessing systems

Yasushi Kanai, Kazuya Koyama, Manabu Ueki, Toshio Tsukamoto, Kazuetsu Yoshida, Simon John Greaves, Hiroaki Muraoka

Broadband Engineering Division

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

Acceleration of micromagnetic calculations on symmetric multiprocessing (SMP) systems is investigated. A speed up of more than 20 times has been realized compared with the serial processing software. The SMP system with the optimized software has a speed up of 5.6 times compared to a previous version on an 8-CPU cluster system. Micromagnetic analysis of a write head with trailing and side shields is performed to derive the quasi-static recording field distributions, dynamic recording fields and magnetization rotation processes. It is noted that the dynamic recording field is affected by the trailing and side shields. A write head for shingled recording is also analyzed and is found to be promising due to its higher recording field.

Original language	English
Article number	5512943
Pages (from-to)	3337-3340
Number of pages	4
Journal	IEEE Transactions on Magnetics
Volume	46
Issue number	8
DOIs	https://doi.org/10.1109/TMAG.2010.2045883
Publication status	Published - 2010 Aug

Keywords

Magnetic recording heads
micromagnetic analysis
parallel computing
perpendicular magnetic recording

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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10.1109/TMAG.2010.2045883

Cite this

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title = "Micromagnetic analysis of shielded write heads using symmetric multiprocessing systems",

abstract = "Acceleration of micromagnetic calculations on symmetric multiprocessing (SMP) systems is investigated. A speed up of more than 20 times has been realized compared with the serial processing software. The SMP system with the optimized software has a speed up of 5.6 times compared to a previous version on an 8-CPU cluster system. Micromagnetic analysis of a write head with trailing and side shields is performed to derive the quasi-static recording field distributions, dynamic recording fields and magnetization rotation processes. It is noted that the dynamic recording field is affected by the trailing and side shields. A write head for shingled recording is also analyzed and is found to be promising due to its higher recording field.",

keywords = "Magnetic recording heads, micromagnetic analysis, parallel computing, perpendicular magnetic recording",

author = "Yasushi Kanai and Kazuya Koyama and Manabu Ueki and Toshio Tsukamoto and Kazuetsu Yoshida and Greaves, {Simon John} and Hiroaki Muraoka",

note = "Funding Information: This work was supported in part by a Grant in Aid from the Japan Society for the Promotion of Science (#18 560 352 and 21 560 374) and the Storage Research Consortium (SRC), Japan. The authors would like to acknowledge the discussion and data supply by Dr. Y. Uehara, Fujitsu Ltd. Copyright: Copyright 2010 Elsevier B.V., All rights reserved.",

year = "2010",

month = aug,

doi = "10.1109/TMAG.2010.2045883",

language = "English",

volume = "46",

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AU - Kanai, Yasushi

AU - Koyama, Kazuya

AU - Ueki, Manabu

AU - Tsukamoto, Toshio

AU - Yoshida, Kazuetsu

AU - Greaves, Simon John

AU - Muraoka, Hiroaki

N1 - Funding Information: This work was supported in part by a Grant in Aid from the Japan Society for the Promotion of Science (#18 560 352 and 21 560 374) and the Storage Research Consortium (SRC), Japan. The authors would like to acknowledge the discussion and data supply by Dr. Y. Uehara, Fujitsu Ltd. Copyright: Copyright 2010 Elsevier B.V., All rights reserved.

PY - 2010/8

Y1 - 2010/8

N2 - Acceleration of micromagnetic calculations on symmetric multiprocessing (SMP) systems is investigated. A speed up of more than 20 times has been realized compared with the serial processing software. The SMP system with the optimized software has a speed up of 5.6 times compared to a previous version on an 8-CPU cluster system. Micromagnetic analysis of a write head with trailing and side shields is performed to derive the quasi-static recording field distributions, dynamic recording fields and magnetization rotation processes. It is noted that the dynamic recording field is affected by the trailing and side shields. A write head for shingled recording is also analyzed and is found to be promising due to its higher recording field.

AB - Acceleration of micromagnetic calculations on symmetric multiprocessing (SMP) systems is investigated. A speed up of more than 20 times has been realized compared with the serial processing software. The SMP system with the optimized software has a speed up of 5.6 times compared to a previous version on an 8-CPU cluster system. Micromagnetic analysis of a write head with trailing and side shields is performed to derive the quasi-static recording field distributions, dynamic recording fields and magnetization rotation processes. It is noted that the dynamic recording field is affected by the trailing and side shields. A write head for shingled recording is also analyzed and is found to be promising due to its higher recording field.

KW - Magnetic recording heads

KW - micromagnetic analysis

KW - parallel computing

KW - perpendicular magnetic recording

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Micromagnetic analysis of shielded write heads using symmetric multiprocessing systems

Abstract

Keywords

ASJC Scopus subject areas

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