克服机群系统通信瓶颈的软件方法

机群系统是一种新兴的并行计算系统 ,它能够以较低的价格提供很高的计算性能 ,因此有广泛的应用前景 .机群系统从整体上说是一种松耦合的体系结构 ,通信是其性能提高的主要瓶颈 .本文首先针对机群系统通信问题做了简要分析 ,在此基础上论述了软件在提高通信性能方面的重要地位 ,着重讨论了如何通过软件方法来提高机群系统性能的途径 .实验结果表明 ,对于许多问题 ,基于相同的硬件支持 ,可以通过软件方法 ,成倍地提高其在机群系统上的求解性能

Overcoming the Cluster Communication Performance Bottleneck bySoftware

Cluster systems are cost effective and they can provide high computing performance in many application areas. Loosely coupled architecture and the high performance gap between microprocessors and inter processor communication cause the problem of communication bottleneck in cluster systems. After an analysis on cluster communication, this paper addresses the importance of software in cluster computing and provides two software methods to improve cluster communication performance. For many problems, experiments show that improvement in software can greatly improve the cluster communication performance based on the same communication hardware.