Authors
Lakshmi NB Chakrapani, Kirthi Krishna Muntimadugu, Avinash Lingamneni, Jason George, Krishna V Palem
Publication date
2008/10/19
Conference
Proceedings of the 2008 international conference on Compilers, architectures and synthesis for embedded systems
Pages
187-196
Publisher
ACM
Description
We develop a theoretical foundation to characterize a novel methodology for low energy and high performance dsp for embedded computing. Computing elements are operated at a frequency higher than that permitted by a conventionally correct circuit design, enabling a trade-off between error that is deliberately introduced, and the energy consumed. Similar techniques considered previously were relevant to deeply scaled future technology generations. Our work extends this idea to be applicable to current-day designs through: (i) a mathematically rigorous foundation characterizing a tradeoff between energy consumed and the quality of solution, and (ii) a means of achieving this trade off through very aggressive voltage scaling beyond that of a conventionally designed circuit. Through our "cmos inspired" mathematical model, we show that our approach is better (by an exponential factor) than the conventional …
Total citations
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