A new preconditioning technique for large real sparse symmetric linear systems in electromagnetic field analysis

Wang Jinming Wang Jinming,Yao Yingying Yao Yingying,Xie Dexin Xie Dexin

doi:10.1109/icems.2001.971864

A new preconditioning technique for large real sparse symmetric linear systems in electromagnetic field analysis

Wang Jinming Wang Jinming, Yao Yingying Yao Yingying + Show 1 more

https://doi.org/10.1109/icems.2001.971864

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Publication Date: Aug 18, 2001

Affiliation: Shenyang University of Technology

#Electromagnetic Field Analysis #Conjugate Gradient + Show 8 more

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Abstract

A new preconditioned conjugate gradient method for solution of large real sparse symmetric linear equations in 3D-electromagnetic field analysis is presented. Three relaxation factors are used to reduce the computation time of each iterative step of the conjugate gradient method and improve the rate of convergence. Numerical examples show that the method is problem-independent in a certain extent, and could decrease the computation time over 50% than the conventional method.

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