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应用科学学报 ›› 2006, Vol. 24 ›› Issue (2): 193-198.

• 论文 • 上一篇    下一篇

面向功耗优化的片上存储器分配策略

金晶, 浦汉来, 凌明   

  1. 东南大学国家专用集成电路系统工程技术研究中心, 江苏南京 210096
  • 收稿日期:2004-12-09 修回日期:2005-02-22 出版日期:2006-03-31 发布日期:2006-03-31
  • 作者简介:金晶,博士生,研究方向:嵌入式系统软件建模、存储子系统功耗优化,E-mail:DSA@seu.edu.cn
  • 基金资助:
    国家"863"高技术研究发展计划资助项目(2003AA1Z1340)

Energy Oriented Optimization of Allocation Strategy for On-Chip Memory

JIN Jing, PU Han-lai, LING Ming   

  1. National ASIC System Engineering Research Center, Southeast University, Nanjing 210096, China
  • Received:2004-12-09 Revised:2005-02-22 Online:2006-03-31 Published:2006-03-31

PDF

91

被引次数

19

摘要： 综合考虑程序的数据块、全局变量、指令块,运用ECFG分析程序中对象间关系引发的容量和功耗影响,并考虑由于指令跳转带来的影响,最终结合ILP采用细化后的Knapsack算法,提出一种针对功耗优化的SoC片上存储器分配策略.仿真结果表明,采用该方法,存储子系统功耗可显著降低,一般达50%左右,最大可达95%以上.

关键词: 片上存储器, 功耗, 分配策略, 内存子系统

Abstract: In this paper, an allocation strategy for on-chip memory is proposed to optimize energy of memory system. With data, global variable, instruction and branch instruction, the strategy uses ECFG to get the effect of energy and capacity caused by the object relationship.By using refined knapsack arithmetic with ILP, experiment results are obtained showing that, for most applications, general energy consumption of a memory system decreases by up to 50%. Especially, when an application's capacity approaches the content of SPM content, this figure is higher than 95%.

Key words: memory system, on-chip memory, energy consumption, allocation strategy

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