积分方程法三维模拟井地电法并行算法研究  

PARALLEL ALGORITHM RESEARCH OF INTEGRAL EQUATION METHOD TO 3D BOREHOLE-SURFACE ELECTROMAGNETIC MODELING

作　　者：王志刚[1] 何展翔 魏文博[1] 

机构地区：[1]中国地质大学,北京100083 [2]东方地球物理公司,河北涿州072751

出　　处：《物探化探计算技术》2007年第5期425-430,共6页Computing Techniques For Geophysical and Geochemical Exploration

基　　金：国家自然科学基金项目(40434010)

摘　　要：在积分方程法模拟三维电磁响应原理的基础上,对井地电法三维正演模拟并行算法做了研究。同时,还利用Fortran 6.5和消息传递接口(MPI)开发了井地电法三维正演模拟并行计算程序。在求解大型线性方程组时,采用的是稳定的双共轭梯度(BICGSTAB)算法,单机正演程序与并行正演程序的计算结果有着很好的一致性,这说明了并行算法的正确性,为进一步开发井地电法三维反演并行程序奠定了基础,也为井地电法三维正、反演程序实用化提供了技术支持。The paper presents the parallel algorithm research of integral equation method to 3D borehole-surface electromagnetic modeling based on 3D electromagnetic field response.The parallel program for 3D borehole-surface modeling was developed with Fortran 6.5 and Message Pass Interface(MPI).BiConjugate Gradients Stabilized method is applied for solving large linear equation set.That the calculation results of PC modeling program match well with that of parallel algorithm shows high reliability of the latter.The parallel algorithm has established the basis for the inversion 3D Borehole-Surface electromagnetic data and also provided the tech support for the utilization of the program.

关 键 词：井地电法 积分方程法 并行 稳定化的双共轭梯度法 

分 类 号：P631.223[天文地球—地质矿产勘探]