基于科学计算组件规范的高性能大地电磁正演模型研究  

Reaserch on High-Performance Magnetotelluric Forward Modeling Based on Scientific Computing Component Specification

作　　者：李姗姗[1] Paulus T.MULUNGA 王金峰[1] 孙晓玲[1] 

机构地区：[1]防灾科技学院灾害信息系,三河065201 [2]Dept.of Comp.Eng.Faculty of Engineering & IT Ongwediva Campus,University of Namibia

出　　处：《科学技术与工程》2013年第35期10697-10702,共6页Science Technology and Engineering

基　　金：中国地震局教师科研基金(20110112)资助

摘　　要：为了提高基于有限元法构建的大地电磁正演模型的计算性能,以及解决模型计算的复杂性问题,提出了一种基于美国新近提出的大规模科学计算领域组件规范CCA(common component architecture)构建的组件化分布式并行大地电磁正演MT模型。首先,基于CCA规范定义MT组件服务端口,定义MT组件;其次,采用有限元方法将Maxwell方程离散为线性系统,采用GreenField算法对其求解,设计了一种频率域分解策略实现了一个分布式并行MT模型;最后,采用Babel编译生成了一个分布式并行MT模型组件。实验结果表明,该方法所构建的MT模型组件具有较高的计算性能、灵活性和可扩展性。In order to improve the computing performance of the magnetotelluric forward model based on finite element method, and to solve the complexity of the computing, a componentized magnetotelluric forward model is proposed. It based on CCA （common component architecture） which is a component specification for large-scale scientific computing. Firstly, It defined the service ports of MT component and the MT component; secondly, dis- crete the Maxwell equation to a linear system, used GreenField algorithm to solve it, and designed a decomposition strategy for frequency domain to implement a distributed parallel MT model; finally, created a distributed parallel MT component using Babel. Experiment results show that the MT component based on proposed method has high computing performance, flexibility and scalability.

关 键 词：大规模科学计算 组件规范 分布式并行计算 大地电磁正演 

分 类 号：TP311.11[自动化与计算机技术—计算机软件与理论]