A Workload Based Lookup Table for Minimal Power Operation Under Supply and Body Bias Control

Sreejith, Kamalalayam Rajan; Amrutur, Bharadwaj; Balivada, Ashok

doi:10.1166/jolpe.2009.1018

Cited by 2 publications

(3 citation statements)

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“…However the point of minimum power depends on the ratio of dynamic to leakage power, with the former modulated by the activity factor. For media applications, the activity factor can vary a lot across different applications and hence, the optimal settings for threshold and supply also vary [13]. Analogous to table based DVS, a table based DVTS scheme has been proposed where for different activity factors, the corresponding supply and body bias values are stored in the look up table.…”

Section: Dynamic Voltage and Threshold Scaling (Dvts)mentioning

confidence: 99%

“…The activity factors are estimated for different applications off-line. During run-time, based on the application being run, the appropriate activity factor is used to consult the look up table to obtain the settings for supply and body bias, which will minimize power [13].…”

Section: Dynamic Voltage and Threshold Scaling (Dvts)mentioning

confidence: 99%

“…Work load estimation is another key ingredient of a dynamic power management system. In static estimation schemes, the computation loads are determined a priori via profiling [13,16]. Further power improvements are possible if dynamic estimation techniques are used.…”

Section: Dynamic Power Management Systemmentioning

confidence: 99%

See 2 more Smart Citations

Adaptative Techniques to Reduce Power in Digital Circuits

Bharadwaj

Mehta

Dwivedi

et al. 2011

JLPEA

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CMOS chips are engineered with sufficient performance margins to ensure that they meet the target performance under worst case operating conditions. Consequently, excess power is consumed for most cases when the operating conditions are more benign. This article will review a suite of dynamic power minimization techniques, which have been recently developed to reduce power consumption based on actual operating conditions. We will discuss commonly used techniques like Dynamic Power Switching (DPS), Dynamic Voltage and Frequency Scaling (DVS and DVFS) and Adaptive Voltage Scaling (AVS). Recent efforts to extend these to cover threshold voltage adaptation via Dynamic Voltage and Threshold Scaling (DVTS) will also be presented. Computation rate is also adapted to actual work load requirements via dynamically changing the hardware parallelism or by controlling the number of operations performed. These will be explained with some examples from the application domains of media and wireless signal processing

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Section: Dynamic Voltage and Threshold Scaling (Dvts)mentioning

confidence: 99%

Section: Dynamic Voltage and Threshold Scaling (Dvts)mentioning

confidence: 99%