Title :
A systematic method for functional unit power estimation in microprocessors
Author :
Wu, Wei ; Jin, Lingling ; Yang, Jun ; Liu, Pu ; Tan, Sheldon X -D
Author_Institution :
Dept. of Comput. Sci., California Univ., Riverside, CA
Abstract :
We present a new method for mathematically estimating the active unit power of functional units in modern microprocessors such as the Pentium 4 family. Our method leverages the phasic behavior in power consumption of programs, and captures as many power phases as possible to form a linear system of equations such that the functional unit power can be solved. Our experiment results on a real Pentium 4 processor show that power estimations attained as such agree with the measured power very well, with deviations less than 5% only
Keywords :
estimation theory; microprocessor chips; power consumption; Pentium 4 processors; functional unit power estimation; linear system; microprocessors; power consumption; Computer science; Counting circuits; Electric variables measurement; Equations; Microprocessors; Modems; Power measurement; Runtime; Temperature; Thermal management; Experimentation; Measurement; Microprocessor; Performance Counter; Power Estimation;
Conference_Titel :
Design Automation Conference, 2006 43rd ACM/IEEE
Conference_Location :
San Francisco, CA
Print_ISBN :
1-59593-381-6
DOI :
10.1109/DAC.2006.229220
