Title :
Identification of power hungry unit in a processor with faulty predictor
Author :
Das, Biswajit ; Sen, Baha ; Saran, D. ; Sikdar, B.K.
Author_Institution :
Inf. Technol., Gurunanak Inst. of Technol., Kolkata, India
Abstract :
This work reports identification of processor modules that are power hungry even for a minor defect in the branch predictor. The probable defects/faults in a predictor, resulting in mis-speculations, have been introduced to estimate the power consumption at different processor modules. The analysis reported in this work points to the power catastrophic defects that cause huge power drainage from the modules/units. Identification of such power hungry units of a processor establishes the need of DPL (design avoiding power loss) to save power drainage from a processor.
Keywords :
fault diagnosis; microprocessor chips; power electronics; program compilers; branch predictor; faulty predictor; power catastrophic defects; power consumption; power drainage; power hungry unit; processor modules; Accuracy; Benchmark testing; Circuit faults; Clocks; Hardware; Power demand; Radiation detectors; Branch predictor; design to avoid power loss; mis-speculation;
Conference_Titel :
Circuits and Systems (ICCAS), 2012 IEEE International Conference on
Conference_Location :
Kuala Lumpur
Print_ISBN :
978-1-4673-3117-3
Electronic_ISBN :
978-1-4673-3118-0
DOI :
10.1109/ICCircuitsAndSystems.2012.6408318