物探化探计算技术2017，Vol.39Issue(1)：52-58,7.DOI:10.3969/j.issn.1001-1749.2017.01.08
基于MPI多通讯域的地震波频率域二维正演并行算法研究
Seismic frequency-domain 2D forward modeling based on parallel algorithms
摘要
Abstract
Frequency-domain forward is the basis of frequency-domain full waveform inversion. In order to solve the computationally intensive in inversion, we apply a combination of coarse-fined grained MPI parallel algorithm based on frequencies and multi-source simulations computing independently in frequency-domain forward modeling. We use coarse grained in frequency parallel and fine grained in solve equations parallel. To realization the method, we put different frequency group of forward modeling in different MPI communicators to make the frequencies computing independently. In each communicator, we use MUMPS (Multi-frontal Massively Parallel Sparse Direct Solver) based on MPI to speedup the method of solving equations. The MPI parallel algorithm can provide reference to other geophysical methods of the multi-source and multi-frequency forward computational efficiency.关键词
地震正演/并行算法/MPI通讯域Key words
seismic forward modeling/parallel algorithm/MPI communicators分类
天文与地球科学引用本文复制引用
李祎昕,谭捍东..基于MPI多通讯域的地震波频率域二维正演并行算法研究[J].物探化探计算技术,2017,39(1):52-58,7.基金项目
国家自然科学基金项目(41374078) （41374078）
国土资源部地质调查项目(12120113086100,12120113101300) （12120113086100,12120113101300）
