Title :
Loop-Directed Mothballing: Power-gating execution units using fast analysis of inner loops
Author :
Court, C.A. ; Kelly, P.H.J.
Author_Institution :
Dept. of Comput., Imperial Coll. London, London, UK
Abstract :
Static power dissipation has been identified as a limiting factor in future microprocessor technologies. This paper presents Loop-Directed Mothballing (LDM) to reduce static power by power-gating execution units. The method accurately predicts the resource requirements and limits performance degradation by focussing on inner loops. In simulation, the energy-delay product (EDP) of the processor is reduced by 10.3%. Two prior methods show worse EDP despite having greater power savings.
Keywords :
microprocessor chips; energy-delay product; fast analysis; loop-directed mothballing; microprocessor technologies; power-gating execution units; static power dissipation; Benchmark testing; Degradation; Delay; Microprocessors; Performance evaluation; Power dissipation; Switches; EDP; Microprocessor; execution unit; power-gating; simulation; static power;
Conference_Titel :
Cool Chips XIV, 2011 IEEE
Conference_Location :
Yokohama
Print_ISBN :
978-1-61284-883-9
Electronic_ISBN :
978-1-61284-882-2
DOI :
10.1109/COOLCHIPS.2011.5890925
