面向SW26010间断有限元算法的多级并行计算  

Multi Level Parallel Computing for SW26010 Discontinuous Galerkin Finite Element Algorithm

作　　者：王晓忠[1] 张祖雨 WANG Xiaozhong;ZHANG Zuyu(Jiangsu Union Technical Institute,Wuxi,Jiangsu 214000,China;School of Internet of Things Engineering,Jiangnan University,Wuxi,Jiangsu 214122,China)

机构地区：[1]江苏联合职业技术学院,江苏无锡214000 [2]江南大学物联网工程学院,江苏无锡214122

出　　处：《计算机科学》2024年第S02期803-807,共5页Computer Science

基　　金：高等学校学科创新引智计划项目(B23008);未来网络科研基金项目(FNSRFP2021YB11)。

摘　　要：间断有限元算法(Discontinuous Galerkin Finite Element Method,DGM)是一种高精度的数值求解算法,针对电磁工程应用中DGM并行计算效率低、计算量较大的问题,提出了基于SW26010平台的并行DGM算法。通过区域分解、数据结构重构、热点函数从核并行计算、计算与通信重叠及从核缓冲优化技术完成了DGM算法的并行优化。实现结果表明,与基于MPI进程级的DGM并行算法相比,可以获得46.8的平均加速比。The discontinuous Galerkin finite element method(DGM)is a high-precision numerical solution algorithm.Aiming at the problems of low efficiency and high computational complexity of DGM parallel computing in electromagnetic engineering applications,a parallel DGM algorithm based on the SW26010 platform is proposed.The parallel optimization of the DGM algorithm is achieved through region decomposition,data structure reconstruction,kernel parallel computing of hotspot functions,computation and communication overlap,and kernel buffering optimization techniques.Experiment results show that compared with the DGM parallel algorithm based on MPI process level,the proposed algorithm can achieve an average acceleration ratio of 46.8.

关 键 词：间断有限元 数值模拟 并行计算 区域分解 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]