Faculty of Information Technology, BUT

Publication Details

ADAC: Automated Design of Approximate Circuits

ČEŠKA Milan, MATYÁŠ Jiří, MRÁZEK Vojtěch, SEKANINA Lukáš, VAŠÍČEK Zdeněk and VOJNAR Tomáš. ADAC: Automated Design of Approximate Circuits. In: Proceedings of 30th International Conference on Computer Aided Verification (CAV'18). Oxford, UK: Springer International Publishing, 2018, pp. 612-620. ISBN 978-3-319-96145-3.
Czech title
ADAC: Nástroj pro automatizovaný vývoj aproximovaných obvodů
Type
conference paper
Language
english
Authors
Keywords

approximate circuits, energy-efficient computing, design automation, approximate equivalence checking, Cartesian Genetic Programming, SAT and BDD-based decision procedures
Abstract
Approximate circuits with relaxed requirements on functional correctness play an important role in the development of resource-efficient computer systems. Designing approximate circuits is a very complex and time-demanding process trying to find optimal trade-offs between the approximation error and resource savings. In this paper, we present ADAC - a novel framework for automated design of approximate arithmetic circuits. ADAC integrates in a unique way efficient simulation and formal methods for approximate equivalence checking into a search-based circuit optimisation. To make ADAC easily accessible, it is implemented as a module of the ABC tool: a~state-of-the-art system for circuit synthesis and verification. Within several hours, ADAC is able to construct high-quality Pareto sets of complex circuits (including even 32-bit multipliers), providing useful trade-offs between the resource consumption and the error that is formally guaranteed. This demonstrates outstanding performance and scalability compared with other existing approaches.
Published
2018
Pages
612-620
Proceedings
Proceedings of 30th International Conference on Computer Aided Verification (CAV'18)
Conference
30th International Conference on Computer Aided Verification, Oxford, GB
ISBN
978-3-319-96145-3
Publisher
Springer International Publishing
Place
Oxford, UK, GB
DOI
BibTeX
@INPROCEEDINGS{FITPUB11731,
   author = "Milan \v{C}e\v{s}ka and Ji\v{r}\'{i} Maty\'{a}\v{s} and Vojt\v{e}ch Mr\'{a}zek and Luk\'{a}\v{s} Sekanina and Zden\v{e}k Va\v{s}\'{i}\v{c}ek and Tom\'{a}\v{s} Vojnar",
   title = "ADAC: Automated Design of Approximate Circuits",
   pages = "612--620",
   booktitle = "Proceedings of 30th International Conference on Computer Aided Verification (CAV'18)",
   year = 2018,
   location = "Oxford, UK, GB",
   publisher = "Springer International Publishing",
   ISBN = "978-3-319-96145-3",
   doi = "10.1007/978-3-319-96145-3\_35",
   language = "english",
   url = "https://www.fit.vut.cz/research/publication/11731"
}
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