An efficient parallel PCG method for eddy current analysis
ISSN: 0332-1649
Article publication date: 19 June 2007
Abstract
Purpose
It is important to investigate large‐scale numerical analyses of electromagnetic fields in design processes of electromagnetic machines. Thus, faster solvers for eddy current analyses are necessary. Parallel computation methods for linear solvers in electromagnetic field analyses have been investigated. These methods have gained importance due to the diffusion of PC clusters and multi‐core CPUs in recent years.
Design/methodology/approach
This paper discuses linear solvers for the finite element method in eddy current analyses on parallel computers. The preconditioned conjugate gradient method with overlapping domain decomposition is treated. Some techniques treated to improve the convergence was investigated.
Findings
The numerical results show that the overlapping effect results in good convergence in eddy current analyses.
Originality/value
The preconditioned conjugate gradient method with overlapping domain decomposition has been treated. The numerical results show that the overlapping method works more efficiently for eddy current analyses. Moreover, this method enables large‐scale analyses on popular computers such as PC clusters.
Keywords
Citation
Watanabe, K. and Igarashi, H. (2007), "An efficient parallel PCG method for eddy current analysis", COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, Vol. 26 No. 3, pp. 888-898. https://doi.org/10.1108/03321640710751299
Publisher
:Emerald Group Publishing Limited
Copyright © 2007, Emerald Group Publishing Limited