计算机科学与探索2017，Vol.11Issue(2)：252-261,10.DOI:10.3778/j.issn.1673-9418.1512057
MPI集合通信性能可扩展性研究与分析
Analysis of Scalability for MPI Collective Communication
摘要
Abstract
The performance of collective communications impacts the efficiency of large scale parallel numerical computing application.Since the theoretic analysis and evaluation on every type of collective communications is still insufficient for the programmer,the communication modules of many applications are designed and used unreasonably.Using Intel IMB benchmark,this paper analyzes and evaluates the typical MPI (message passing interface) collective communication on BXJ supercomputer (a parallel machine platform),and gives the theoretic results based on the current model and algorithm.The results show that the performance of different MPI collective communications is different.There is an obvious gap between the actual value of some collective communication and theoretic value.The results reflect that there are still many researches,such as accurate theoretic performance model for some collective communication,optimization of collective communication,and optimization of application communication module,etc.关键词
集合通信/通信性能/可扩展性Key words
collective communication/communication performance/scalability分类
信息技术与安全科学引用本文复制引用
罗红兵,张晓霞..MPI集合通信性能可扩展性研究与分析[J].计算机科学与探索,2017,11(2):252-261,10.基金项目
The National High Technology Research and Development Program of China under Grant No.2014AA01A302(国家高技术研究发展计划(863计划)). （国家高技术研究发展计划(863计划）
