1. 哈尔滨工业大学微电子中心,黑龙江,哈尔滨,150001
2. 信息产业部软件与集成电路促进中心,北京,100038
3. 哈尔滨工业大学微电子中心黑龙江哈尔滨,150001
4. 信息产业部软件与集成电路促进中心北京,100038
纸质出版:2007
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谢学军, 叶以正, 邱善勤, 等. 基于马尔可夫模型的数据值预取方案[J]. 电子学报, 2007,35(2):307-310.
XIE Xue-jun, YE Yi-zheng, QIU Shan-qin, et al. Data Value Prefetching Method Based on Markov Model[J]. Acta Electronica Sinica, 2007, 35(2): 307-310.
根据程序中Load指令的行为特征构造马尔可夫模型
进而提出预取器的结构方案.SPEC仿真结果表明
与采用二级值预测方案以及基于程序语句相关的预取方案相比
在预测指令的覆盖率上分别提高了9.51%和2.02%
在预测精度上分别提高了12.9%和8.2%
而在IPC上
则分别提高了16.7%和7.4%.
A data prefetching method was proposed based on a Markov model
which was constructed according to the behavioral characteristics of LOAD instructions.SPEC simulation result shows that this work is preferable to Two-level value prefetching method and Syntax-based prefetching method as its instruction-prefetching coverage was increased by 9.51% and 2.02%
its prefetching accuracy was increased by 12.9% and 8.2% and its IPC was increased by 16.7% and 7.4% respectively.
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