大规模并行粒子模拟系统通信性能优化研究与分析  

Research and analyze of communication performance optimization in large-scale particle simulation system

作　　者：何牧君[1,2] 郭力[1] 严历[1,2] 

机构地区：[1]中国科学院过程工程研究所多相复杂系统国家重点实验室,北京100190 [2]中国科学院研究生院,北京100049

出　　处：《计算机与应用化学》2008年第9期1098-1102,共5页Computers and Applied Chemistry

基　　金：国家自然科学基金资助项目(20336040，20221603)．

摘　　要：随着粒子模拟在化工、材料、生物等领域应用不断深入,计算规模越来越大,运行一个作业需要的高性能集群节点数也越来越多。因此,降低网络通信所占总运行时间开销成为提高粒子模拟系统整体运行性能的关键环节之一。本文测试了不同MPI消息传递环境、英特尔I/O加速技术以及网络设备驱动参数设置在多相复杂系统国家重点实验室高性能计算集群上的性能发挥情况,并通过优化有效提高了网络通信性能。最后对GAMMA等用户层通信协议替代TCP/IP通信协议进行了初步的可行性测试。As particle method was used much wider in many fields, such as chemical engineering, material, and biology, and the scale of computing became larger and larger. People need much more high-performance cluster nodes to run a single work. Therefore, it is important to reduce communication time for improving overall operating performance of particle simulation system. This paper tested and improved performance using different MPI environment, Intel I/OAT and different NIC driver＇s parameters in high performance computing clusters of State Key Laboratory of Multi-Phase Complex System. Paper＇s last part was some feasibility tests about replacing TCP with some user-level protocol such as GAMMA and MVIA.

关 键 词：粒子模拟 并行计算 OPEN MPI 英特尔I/O加速技术 GAMMA 

分 类 号：TP393.09[自动化与计算机技术—计算机应用技术]