Adopting the Banked Register File Scheme for Better Performance and Less Leakage

ETRI Journal

关键词: computer architecture;    leakage;    dynamic thermal management;    DTM;    banked register file;    Microprocessor;   

Others  :  1185671
DOI  :  10.4218/etrij.08.0208.0052

【 摘 要 】

Excessively high temperature deteriorates the reliability and increases the leakage power consumption of microprocessors. The register file, known as one of the hottest functional units in microprocessors, incurs frequent dynamic thermal management operations for thermal control. In this letter, we adopt the banked register file scheme, which was originally proposed to reduce dynamic power consumption. By simply modifying the register file structure, the temperature in the register file was reduced dramatically, resulting in 13.37% performance improvement and 10.49% total processor leakage reduction.

   

【 参考文献 】

• [1]K. Skadron et al., "Temperature-Aware Microarchitecture: Modeling and Implementation," ACM Trans. Architecture and Code Optimization, vol. 1, no. 1, Mar. 2004, pp. 94-125.
• [2]J.H. Tseng and K. Asanovi?, "Banked Multiported Register Files for High-Frequency Superscalar Processors," Proc. 30th ISCA Conf., June 2003, pp. 62-71.
• [3]H.B. Jang, J.H. Kong, and S.W. Chung, "Adopting the Banked Register Files for Temperature-Aware Microprocessors," Proc. ITC-CSCC Conf., July 2007.
• [4]T. Austin, E. Larson, and D. Ernst. "Simplescalar: An Infrastructure for Computer System Modeling," Proc. IEEE Computer Magazine, vol. 35, Feb. 2002, pp. 59-67.
• [5]D. Brooks, V. Tiwari, and M. Martonoshi, "Wattch: A Framework for Architectural-Level Power Analysis and Optimizations," Proc. 27th ISCA Conf., June 2000, pp. 83-94.
• [6]Y. Zhang et al., "HotLeakage: A Temperature-Aware Model of Subthreshold and Gate Leakage for Architects," Tech. Report CS-2003-05, Univ. of Virginia, Dept. of Computer Science, Mar. 2003.
• [7]Standard Performance Evaluation Corp., http://www.spec.org/.