2.5维复电阻率反演并行算法设计  

Design of 2.5 dimensional complex resistivity inversion parallel computing scheme

作　　者：陈实[1] 吴文鹂[1] 顾观文[1] 梁萌[1] 

机构地区：[1]中国地质科学院地球物理地球化学勘查研究所,廊坊065000

出　　处：《物探化探计算技术》2015年第4期416-421,共6页Computing Techniques For Geophysical and Geochemical Exploration

基　　金：国家863项目(2014AA06A610);物化探所所长基金项目(AS2013J07)

摘　　要：近年来2.5维复电阻率反演取得了一些理论和应用方面的成果,但计算过程复杂、计算量巨大,特别是正演计算过程中计算量大导致了反演速度较慢。这里在2.5维复电阻率反演计算基础上,将反演算法中的正演过程的排列和频率循环分割成多个规模较小的程序段,并发执行正演过程中的每个排列和频率循环的求解计算过程,并根据并行计算的节点数目或者计算核心数目,动态调整每个节点或者计算核心的计算量,从而提高了算法的计算效率和适应性。Some theoretical and application aspects of results have been made for 2.5 dimensional complex resistivity inver- sion, but complex mathematical calcultionsin forward processes slow down the inversion speed. Based on the 2.5 dimensional complex resistivity inversion,the forward processes of the inversion algorithm will be divided into much smaller forward cycles aeeordingtoits arrangement and frequency, the amount of calculations will be assigned dynamically to each node or the calcula- tion core depending on the number of nodes or the calculation of the number of parallel computing core, therefore the adaptabili- ty and efficiency of the algorithm will be greatly improved in this way.

关 键 词：复电阻率 并行计算 2.5维反演 

分 类 号：P631.3[天文地球—地质矿产勘探]