{"title":"An Efficient Parallelization Approach of FEM-DDM for Large-Scale 3D Scattering Problems","authors":"Rui-Qing Liu, Ming-lin Yang, Hong-Wei Gao, Xinqing Sheng","doi":"10.1109/ISAPE.2018.8634216","DOIUrl":null,"url":null,"abstract":"We present in this paper an efficient parallelization approach of the finite element domain decomposition method (FEM-DDM) for large scale 3D scattering problems. In this parallel FEM-DDM, the domain decomposition is done in a hierarchical way to minimize the inter-processor communication. In the hierarchical domain decomposition scheme, the whole FEM solution domain is first decomposed into large size subdomains with a total number equals to MPI processes. Then, each large subdomain is distributed to a MPI process and further decomposed into smaller ones to achieve good computation efficiency. Numerical examples are presented to demonstrate the accuracy, scalability, and capability of the proposed parallel FEM-DDM algorithm.","PeriodicalId":297368,"journal":{"name":"2018 12th International Symposium on Antennas, Propagation and EM Theory (ISAPE)","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2018 12th International Symposium on Antennas, Propagation and EM Theory (ISAPE)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ISAPE.2018.8634216","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
Abstract
We present in this paper an efficient parallelization approach of the finite element domain decomposition method (FEM-DDM) for large scale 3D scattering problems. In this parallel FEM-DDM, the domain decomposition is done in a hierarchical way to minimize the inter-processor communication. In the hierarchical domain decomposition scheme, the whole FEM solution domain is first decomposed into large size subdomains with a total number equals to MPI processes. Then, each large subdomain is distributed to a MPI process and further decomposed into smaller ones to achieve good computation efficiency. Numerical examples are presented to demonstrate the accuracy, scalability, and capability of the proposed parallel FEM-DDM algorithm.