NDLI: A New ICCG Method of Large-Scale Sparse Linear Equation Group

Content Provider	IEEE Xplore Digital Library
Author	Zhang Yongjie Sun Qin
Copyright Year	2007
Description	Author affiliation: Northwestern Polytech. Univ., Xi'an (Zhang Yongjie; Sun Qin)
Abstract	Coefficient matrix of linear equations from finite element method (FEM) is sparse and symmetrical. For the sake of CPU operational time saving to accesses data in matrix decomposition and reducing storing requirement to computer, we introduce fully sparse strategy that stores only nonzero elements of symmetrical part by chain pattern management. Based on the incomplete Cholesky decomposition with thresholds, a new ICCG method is obtained by modifying diagonal elements. The new method can ensure that solution is exact and high-performance. Numerical examples show that the combination of ICCG method and fully sparse storage structure can greatly improve the algorithmic efficiency for FEM solution of large scaled sparse linear equation group.
Sponsorship	IEEE Beijing Sect.
Starting Page	848
Ending Page	851
File Size	1927142
Page Count	4
File Format	PDF
ISBN	9781424410446
DOI	10.1109/MAPE.2007.4393759
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-08-16
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Microwave antennas Symmetric matrices Sparse matrices Matrix decomposition Finite element methods Equations a new ICCG method fully sparse strategy large-scale sparse linear equation group Microwave theory and techniques Antennas and propagation Large-scale systems Iterative methods
Content Type	Text
Resource Type	Article

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