多机系统中“分发”和“流水”广播方式性能比较

Performance Evaluation of Dispersing and Pipelining Broadcast in Multicomputer System

本文首先详细说明了流水方式，给出了它的几种变化形式，并通过实验数据说明在不同的情况下如何选用流水方式，然后分析了在系统配置不同时，解决不同的应用问题。简化的环型流水方式和分发方式对并行程序执行时间的影响，指出在大多数情况下，采用流水方式广播数据可以大大减少并行程序的执行时间。

Two kinds implementations of broadcasting in multicomputer dispersing and pipelining are presented. Pipelining broadcast is explained in detail, its several variations and how to choose them in different circumstances are given. Different architectures applications and the effects of dispersing and pipelining on execution time of parallel programs are compared. It is proposed that in most cases, the execution time of parallel program can be greatly reduced with pipelining broadcast'