• 中国计算机学会会刊
  • 中国科技核心期刊
  • 中文核心期刊

J4 ›› 2016, Vol. 38 ›› Issue (04): 617-623.

• 论文 •    下一篇

多核嵌入式系统内联网络优化调度

杜家宜,李仁发,堵琳娜   

  1. (湖南大学信息科学与工程学院,湖南 长沙 410082)
  • 收稿日期:2015-02-28 修回日期:2015-06-16 出版日期:2016-04-25 发布日期:2016-04-25
  • 基金资助:

    国家自然科学基金(61173014,61173036);湖南省科技厅科技计划项目(2014GK3043)

Task optimization scheduling to inter-connection network
on embedded system with chip multi-processors      

DU Jiayi,LI Renfa,DU Linna   

  1. (School of Information Science and Engineering,Hunan University,Changsha 410082,China)
  • Received:2015-02-28 Revised:2015-06-16 Online:2016-04-25 Published:2016-04-25

摘要:

处理核之间的通信问题是多核系统中不可避免的问题,根据具体应用,进行核间内联网络的定制和设计是一个可行的研究方向。针对该问题提出了任务节点的通信调度算法,通过采用点对点连接作为内联网络的方式,在不增加系统调度长度的前提下,构造出满足系统核间通信需求、核间点对点连接数最少的内联网络。同时还给出了核间通信调度确定算法和内联网络构造算法,为内联网络的设计提供依据。实验表明,与传统的HLFET算法相比,提出的调度算法能极大减少嵌入式系统中的核间点对点连接数目。

关键词: 内联网络, 任务调度算法, 点对点连接

Abstract:

Communication between cores is significant for the performance of embedded system of chip multiprocessors (CMPs). It is a promising solution to design and customize the interconnection network based on a particular application. We propose a task optimization scheduling for communication connection algorithm (TOCCA)when connection is of the type of P2P. The interconnected network has minimal P2P connections and satisfies the communication demands, while not increasing the makespan. Besides, to help deploy the network, we present a deterministic algorithm of data transition (DDT) and a construction algorithm of interconnection network (CICN). Experimental results show that the TOCCA can dramatically reduce the number of P2P connections in comparison with the HLFET algorithm.

Key words: inter-connection network;task scheduling;P2P connection