Function Approximation based on Estimated Arithmetic Operators

Arnaud Tisserand 1
1 CAIRN - Energy Efficient Computing ArchItectures with Embedded Reconfigurable Resources
Inria Rennes – Bretagne Atlantique , IRISA-D3 - ARCHITECTURE
Abstract : This article reports preliminary results on hardware operators for function evaluation with moderate average accuracy. The obtained operators provide a small average error on the input domain but a few large errors may occur for some very infrequent arguments. The proposed approximation method combines two methods: i) approximation using low-degree polynomials with small and sparse coefficients; ii) operators for addition based on estimated arithmetic and integer power operators (x^2, x^3) with reduced accuracy. Typical delay reduction is about 20-50% and 15-30% for silicon area reduction compared to previous results.
Type de document :
Communication dans un congrès
43th Asilomar Conference on Signals, Systems and Computers, Oct 2009, Pacific Grove, California, United States. IEEE, 2009
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https://hal.inria.fr/inria-00446527
Contributeur : Arnaud Tisserand <>
Soumis le : mardi 12 janvier 2010 - 18:34:59
Dernière modification le : mercredi 11 avril 2018 - 01:57:22

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  • HAL Id : inria-00446527, version 1

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Arnaud Tisserand. Function Approximation based on Estimated Arithmetic Operators. 43th Asilomar Conference on Signals, Systems and Computers, Oct 2009, Pacific Grove, California, United States. IEEE, 2009. 〈inria-00446527〉

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