SCI环仿真和分析(英文)  

Simulation and analysis of SCI rings

作　　者：翟海涛[1] 汪健甄 姜震[1] 熊华钢[1] 

机构地区：[1]北京航空航天大学电子信息工程学院,北京100083 [2]洛阳光电设备研究院,河南洛阳471000

出　　处：《大连理工大学学报》2003年第z1期163-167,共5页Journal of Dalian University of Technology

基　　金：航空科学基金资助项目 (0 0 F51 0 1 4).~~

摘　　要：SCI作为IEEE的一个协议标准,采用一个高效的流控子协议为网络上的所有节点公平地分配带宽.在所有的参数中,临界点是一个关键参数,当负载超过这个临界点时,网络的实时性将急剧恶化.对SCI环进行建模仿真,评估临界点是研究SCI协议的一个重要手段.仿真结果表明SCI协议适用于对实时性要求较高的任务系统的互联.SCI (scalable coherent interface), which is proposed by IEEE, provides an efficient flow control protocol that fairly allocates bandwidth to all nodes on the network. It is very attractive because of its high bandwidth (1 GByte/s) and low latency (hundreds of ns) under light traffic load. Among all parameters, the critical point is a key parameter. If it is missed, the real-time performance will be degraded abruptly. The simulation of the SCI rings and evaluation of the critical point are important approaches to further study of the protocol. From the simulation, a conclusion can be drawn that the SCI protocol is a good alternative for mission system, which requires hard real-time performance.

关 键 词：SCI 仿真 实时性 性能分析 寄存器插入环 

分 类 号：TP393.02[自动化与计算机技术—计算机应用技术]