ProbDesign2

ProbDesign2 - Probabilistic arithmetic Geometric model for...

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Emerging Technologies of  Computation Montek Singh COMP790-084 Oct 6, 2011
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Today’s topics: approximate arithmetic simple applications Next time: more applications architectures and design tools challenges and benefits open questions Today:  Probabilistic Design
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Supply reduced voltage to adder gates fine-grain:  each stage receives own voltage coarse-grain:  use binning Probabilistic arithmetic
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Error induced: Energy consumed: Probabilistic arithmetic
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Voltage selection fine-grain:  each  stage receives own  voltage coarse-grain:  use  binning
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Unformatted text preview: Probabilistic arithmetic Geometric model for voltage assignment higher order bit receives progressively higher voltage Probabilistic arithmetic Energy-correctness tradeoff Probabilistic arithmetic Energy-correctness tradeoff example Probabilistic arithmetic Lower voltage causes clock deadline to be missed some of the longer carry chains cannot complete! Delay-Induced Approximation Delay-Induced Approximation Example: DFT Delay-Induced Approximation Example: DFT Delay-Induced Approximation...
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This note was uploaded on 11/28/2011 for the course COMP 790 taught by Professor Staff during the Fall '08 term at UNC.

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ProbDesign2 - Probabilistic arithmetic Geometric model for...

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