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计算机工程 ›› 2010, Vol. 36 ›› Issue (7): 249-251. doi: 10.3969/j.issn.1000-3428.2010.07.085

• 开发研究与设计技术 • 上一篇    下一篇

基于超块的激进执行模型可预测性分析

赵灿明1,安 虹1,2,任永青1,从 明1   

  1. (1. 中国科学与技术大学计算机科学与技术系,合肥 230027;2. 中国科学院计算机体系结构重点实验室,北京 100080)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2010-04-05 发布日期:2010-04-05

Predictability Analysis of Aggressive Execution Model Based on Hyperblock

ZHAO Can-ming1, AN Hong1,2, REN Yong-qing1, CONG Ming1   

  1. (1. Department of Computer Science and Technology, University of Science and Technology of China, Hefei 230027;
    2. Key Laboratory of Computer System and Architecture, Chinese Academy of Sciences, Beijing 100080)
  • Received:1900-01-01 Revised:1900-01-01 Online:2010-04-05 Published:2010-04-05

摘要: 分析基于超块的激进执行模型中超块级预测可行性,给出满足超块级预测的预测器设计方案。对不同应用深度预测可行性高低、期望预测深度及其影响因素等进行论证。实验结果表明,大部分应用具有较高的期望预测深度,适合激进执行,但不同的应用期望深度相差较大。

关键词: 激进执行模型, 超块级预测, 期望预测深度

Abstract: This paper analyses the feasibility of the hyperblock-level prediction in hyperblock-based aggressive execution model, puts forward a multi-exit predictor which adapts to hyperblock-based execution model. It demonstrates the feasibility and prediction-depth of hyperblock-level prediction based on this model. Experimental results show that a lot of applications have a higher expected prediction-depth, suitable for aggressive execution, but they have great difference in different applications.

Key words: aggressive execution model, hyperblock-level prediction, expected prediction-depth

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