The Calculation of Three Dimensional Geoelectric Field of Point Source by an Improved Successive over Relaxation Method

During 3-D geoelectric modeling by finite difference method, it is inevitable to solve linear equations Ax=b, where A is a large parse matrix. Currently, the incomplete Cholesky conjugate gradient (ICCG) method is a main solver to these linear systems. In this paper, an improved successive over rela...

Full description

Saved in:
Bibliographic Details
Main Authors: Zou, Guihong, Liang, Huaqing
Format: Conference Proceeding
Language:English
Subjects:
3-D geoelectric modeling
Conductivity
Convergence
dynamic adjustable factor
Equations
Finite difference methods
incomplete Cholesky conjugate gradient method
Linear systems
Mathematical model
Solid modeling
successive over relaxation method
Online Access:Request full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:During 3-D geoelectric modeling by finite difference method, it is inevitable to solve linear equations Ax=b, where A is a large parse matrix. Currently, the incomplete Cholesky conjugate gradient (ICCG) method is a main solver to these linear systems. In this paper, an improved successive over relaxation (MSOR) method, whose factor is dynamically adjusted, is used to solve the linear system generated in the process above. In comparison to the ICCG, both computing time and memory space are reduced to some extent when using MSOR method.
DOI:10.1109/ICCIS.2011.278