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| Probabilistic Chips |
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Integrated circuits composed of thousands of transistors do computing using binary logic of 0 or 1. In order to reduce the effect of inherent noise cause by constant flow of electrons these circuits are operated a relatively higher signal to noise ratio to have these logic always give the right result.
What if some of the circuit can run at lower Signal to Noise ratio at the cost of not arriving the right result all the time?
It would not hurt if application is not precision bound like hearing music, watching a movie. Sounds unrealistic ? well one scientist seems to disagree. Krishna Palen, a professor at Rice university, has developed a way for chips to use significantly less power in exchange for a small loss of precision. As per Mr. Palem, "Relaxing the probability of correctness even a little bit can produce significant savings in energy,". For more details on this novel idea, check out http://www.technologyreview.com/read_article.aspx?ch=specialsections&sc=emerging08&id=20246
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| Originally Written/Posted By : Suren Prajapat |
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| Posted on: 2008-12-23 |
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