Title :
The Calculation of Three Dimensional Geoelectric Field of Point Source by an Improved Successive over Relaxation Method
Author :
Zou, Guihong ; Liang, Huaqing
Abstract :
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.
Keywords :
Conductivity; Convergence; Equations; Finite difference methods; Linear systems; Mathematical model; Solid modeling; 3-D geoelectric modeling; dynamic adjustable factor; incomplete Cholesky conjugate gradient method; successive over relaxation method;
Conference_Titel :
Computational and Information Sciences (ICCIS), 2011 International Conference on
Conference_Location :
Chengdu, China
Print_ISBN :
978-1-4577-1540-2
DOI :
10.1109/ICCIS.2011.278
