Evaluation of Parallelized Meshless Approach: Application to Shielding Current Analysis in HTS

Author

Ikuno, Soichiro ; Hanawa, Toshihiro ; Takayama, Teruou ; Kamitani, Atsushi

Author_Institution

Sch. of Comput. Sci., Tokyo Univ. of Technol., Tokyo

Volume

44

Issue

6

fYear

2008

fDate

6/1/2008 12:00:00 AM

Firstpage

1230

Lastpage

1233

Abstract

Parallelized meshless approach using OpenMP is evaluated. The meshless approach does not require finite elements. However, it takes tremendous CPU time to generate the coefficient matrix of linear system instead of unnecessary mesh generation procedure. The code for Poisson problem and shielding current analysis in high-temperature superconductor (HTS) by using element-free Galerkin method is developed and parallelize the code using OpenMP. Results of the computation shows that the CPU time of 4PUs (processing units) is 3.8 times faster than that of 1PU in case of Poisson problem. However, speedup ratio does not show good performance in case of the shielding current analysis in HTS.

Keywords

Galerkin method; Poisson equation; electromagnetic shielding; high-temperature superconductors; superconducting thin films; CPU time; OpenMP; Poisson problem; element-free Galerkin method; finite elements; high-temperature superconductor; linear system coefficient matrix; parallelized meshless approach; shielding current analysis; speedup ratio; Element-free Galerkin; high-temperature superconductor (HTS); meshless approach; openMP; parallelization;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2007.914872

Filename

4526898