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并行计算时间模型和并行机系统性能
引用本文:乔香珍.并行计算时间模型和并行机系统性能[J].计算机学报,1998,21(5):413-418.
作者姓名:乔香珍
作者单位:中国科学院计算技术研究所,北京,100080;国家智能计算机研究开发中心,北京,100080
基金项目:国家自然科学基金!69573033,国家863高科技基金
摘    要:本文重点从共享存储器式并行机系统体系结构中的新技术和并行软件系统的新特点分析了影响并行算法和应用程序性能的各种因素,并提出改进的并行计划时间的模型,给给出了提高并行算法和软件性能的原则和实例。

关 键 词:并行算法  并行计算  时间模型  并行计算机
修稿时间:1996年8月19日

A TIMING MODEL AND PARALLEL COMPUTER PERFORMANCE
QIAO Xiang-Zhen.A TIMING MODEL AND PARALLEL COMPUTER PERFORMANCE[J].Chinese Journal of Computers,1998,21(5):413-418.
Authors:QIAO Xiang-Zhen
Abstract:The models for parallel computation are surveyed and discussed in thispaper, the emphases is put on the model for shared memory multiprocessors. Theperformance of a parallel algorithm and application on a shared memory multipro-cessor is affected by factors such as sequential code, parallel architecture and sys-tem software. A modified timing model is presented and analyzed in this paper.This timing model takes accounts of the effects of cache performance, process cre-ation and synchronization, and the effect of system software. The examples to il-lustrate these characteristics are given. Some efficient methods to aid the user to'improve their algorithms for higher performance are presented. Both analytical andexperimental results are given. These examples are tested on some shared memorymultiprocessors. These principles are important for the effective use of shared mem-ory multiprocessors-
Keywords:Parallel algorithm  timing model for parallel computation  cache  multiprocessor performance  
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