ProbDesign1

ProbDesign1 - operating voltage Probabilistic CMOS switch...

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Emerging Technologies of  Computation Montek Singh COMP790-084 Oct 4, 2011
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Basics of probabilistic design energy-correctness tradeoff probabilistic Boolean logic approximate arithmetic applications Next class: architectures and design tools case studies challenges and benefits open questions Today:  Probabilistic Design
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Operate at reduced voltage more noise but lesser energy consumption Where is this acceptable? Where could this be even desirable? Basics of probabilistic design
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Logic values have associated probabilities p:   probability that the value is correct introduces non-determinism Probabilistic Boolean logic
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Thermal noise makes any switch noisy probability of error depends on thermal noise vs. 
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Unformatted text preview: operating voltage Probabilistic CMOS switch Thermal noise makes any switch noisy probability of error depends on thermal noise vs. operating voltage higher supply voltage (Vdd) w.r.t. noise (sigma) implies higher probability of correct logic Probabilistic CMOS switch Everything else remaining fixed: energy required goes up exponentially with prob. of correctness energy required goes up quadratically with noise Energy-Correctness Tradeoffs energy required goes up exponentially with prob. of correctness Energy-Correctness Tradeoffs Probabilistic Cellular Automata Random Neural Networks Hyper Encryption Bayesian Inference Applications?...
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ProbDesign1 - operating voltage Probabilistic CMOS switch...

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