基于以太网的多DSP并行系统任务下载技术研究

发布时间：2018-04-29 14:51

本文选题：并行仿真系统 + 以太网　；参考：《云南大学》2012年硕士论文

【摘要】：随着计算机技术和高性能计算技术的发展以及人们对复杂、大型系统如基因工程、气候预报、军事演习、电力系统等的深入研究,原有串行仿真系统受到单个处理器处理速度的限制,严重影响了系统的仿真时间失去了仿真的目的。并行仿真可将大型的数据处理任务分解成多个可相互独立的、可同时进行的子任务,通过相互协调地运行和实现这些子任务,达到快速、高效地完成仿真计算。为了实现基于以太网的嵌入式并行系统的实时仿真应用,本文在分析多种并行仿真系统结构的基础上,构建了一种双重网络的多DSP并行仿真系统。该系统使用主从网络结构,主机与从机通信使用基于TCP/IP协议的以太网,从机间通信使用基于MAC层的以太网。这样既保证通信的可靠性,又保证了并行系统的实时性。在多DSP并行系统中,多机下载应用程序过程耗时长工作量大。为了实现基于以太网的嵌入式并行系统的实时仿真应用,本文根据BF548装载文件结构的特点,研究了DSP的启动方式和加载过程,提出一种基于以太网的初始化代码多重加载的下载方法,解决了多DSP并行系统任务下载过程复杂繁琐的问题。通过实际测试,验证了该下载方法的可行性和有效性,为并行仿真应用提供了一种方便、灵活的实验手段和实现技术。
[Abstract]:With the development of computer technology and high performance computing technology, and the in-depth study of complex, large-scale systems such as genetic engineering, climate prediction, military exercises, power systems, etc. The original serial simulation system is limited by the processing speed of a single processor, which seriously affects the simulation time of the system and loses the purpose of simulation. Parallel simulation can decompose large data processing tasks into several independent and simultaneous sub-tasks. By running and implementing these sub-tasks in coordination with each other, the simulation calculation can be completed quickly and efficiently. In order to realize the real-time simulation application of embedded parallel system based on Ethernet, this paper constructs a kind of multi- parallel simulation system based on the analysis of several parallel simulation system structures. The master / slave network structure is used in the system. The communication between host and slave is based on Ethernet based on TCP/IP protocol, and the communication between slave and slave is based on Ethernet based on MAC layer. This not only guarantees the reliability of communication, but also guarantees the real-time of parallel system. In multiple DSP parallel systems, the process of downloading applications from multiple computers takes a lot of time and a lot of work. In order to realize the real-time simulation application of embedded parallel system based on Ethernet, according to the characteristics of BF548 loading file structure, this paper studies the startup mode and loading process of DSP. In this paper, an ethernet based method for downloading initialization code with multiple reloading is proposed, which solves the complex and tedious problem of task downloading in multiple DSP parallel systems. The feasibility and effectiveness of the download method are verified by practical test, which provides a convenient and flexible experimental method and implementation technology for parallel simulation application.
【学位授予单位】：云南大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TP368.1

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