基于云计算的电磁场有限元计算方法研究  

Study on computing method of electromagnetic field finite element based on the cloud computing

作　　者：金亮[1] 邱运涛[1] 杨庆新[1] 牛萍娟[1] 祝丽花[1] 张献[1] 郭富坤 

机构地区：[1]天津工业大学电工电能新技术天津市重点实验室,天津300387

出　　处：《中国科技论文》2016年第11期1310-1314,共5页China Sciencepaper

基　　金：国家自然科学基金资助项目(51207105;51577132;51507110);高等学校博士学科点专项科研基金资助项目(20121201120003)

摘　　要：与工程实践密切相关的电工装备真实模型仿真计算,具有计算规模庞大、计算复杂程度高的特点。为此,提出1种基于云计算及弹性计算的并行计算实现方法;使用虚拟化技术将资源整合为可扩展的虚拟资源池,并搭建了并行计算集群;部署了9台Redhat6.0的Linux系统,其中1台作为主节点(master),负责整体计算任务的分配、调度与存储;集群之间通过1台千兆路由器相连,节点之间采用SSH通信协议机制;选取感应电机的静磁场计算作为案例,使用OPENMPI编制计算程序,在云计算平台的虚拟集群中实现了计算节点数分别为202万、246万、285万、324万规模的并行计算。计算结果表明:7台节点是4种计算规模中计算用时最少的最优节点数;随着亚马逊云计算3.6GHz通讯宽带的实现以及私有云万兆网的部署,云计算平台实现的并行计算效率可进一步提升。In the case of facing the real electrical equipment which is closely related the actual engineering and scientific research,the simulation calculation has the characteristics of the larger scale computation and high computational complexity.A method of parallel computing based on cloud computing was proposed.A scalable virtual resource pool was integrated using virtualization technology and a set of parallel computing cluster including nine computers was built in the simulation of the cloud environment.One of nine computers was the Master which is responsible for the allocation,scheduling and storage of the whole computing tasks.Connecting by a Gigabit router,each node communicates with SSH protocol.Static magnetic field of induction motor was calculated and the calculation program was written by OPENMPI.Different scales of nodes,（including 2.02 million,2.46 million,2.85 million,3.24million）,were computed in the parallel virtual cluster of cloud computing.Results show that seven-computers of the parallel virtual cluster takes the minimum computing time and is the best number of computing.With the implementation of the Amazon cloud computing 3 600 MHz broadband communication and the deployment of the private cloud 10 Gigabit Network,the efficiency of the parallel computing in cloud computing can be further enhanced.

关 键 词：云计算 并行计算 电磁场数值计算 有限元法 

分 类 号：TP3[自动化与计算机技术—计算机科学与技术] TM15[电气工程—电工理论与新技术]