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Detail publikace
MRÁZEK, V. VAŠÍČEK, Z. HRBÁČEK, R.
Originální název
Role of circuit representation in evolutionary design of energy-efficient approximate circuits
Typ
článek v časopise ve Web of Science, Jimp
Jazyk
angličtina
Originální abstrakt
Circuit approximation has been introduced in recent years as a viable method for constructing energy-efficient electronic systems. An open problem is how to effectively obtain approximate circuits showing good compromises between key circuit parameters - the error, power consumption, area and delay. The use of evolutionary algorithms in the task of circuit approximation has led to promising results. Unfortunately, only relatively small circuit instances have been tackled because of the scalability problems of the evolutionary design method. This study demonstrates how to push the limits of the evolutionary design by choosing a more suitable representation on the one hand and a more efficient fitness function on the other hand. In particular, the authors show that employing full adders as building blocks leads to more efficient approximate circuits. The authors focused on the approximation of key arithmetic circuits such as adders and multipliers. While the evolutionary design of adders represents a rather easy benchmark problem, the design of multipliers is known to be one of the hardest problems. The authors evolved a comprehensive library of energy-efficient 12-bit multipliers with a guaranteed worst-case error. The library consists of 65 Pareto dominant solutions considering power, delay, area and error as design objectives.
Klíčová slova
Approximate computing, Evolutionary design, Representation, Arithmetic circuits
Autoři
MRÁZEK, V.; VAŠÍČEK, Z.; HRBÁČEK, R.
Vydáno
8. 5. 2018
ISSN
1751-8601
Periodikum
IET Computers and Digital Techniques
Ročník
2018
Číslo
4
Stát
Spojené království Velké Británie a Severního Irska
Strany od
139
Strany do
149
Strany počet
11
URL
http://digital-library.theiet.org/content/journals/10.1049/iet-cdt.2017.0188
BibTex
@article{BUT154992, author="Vojtěch {Mrázek} and Zdeněk {Vašíček} and Radek {Hrbáček}", title="Role of circuit representation in evolutionary design of energy-efficient approximate circuits", journal="IET Computers and Digital Techniques", year="2018", volume="2018", number="4", pages="139--149", doi="10.1049/iet-cdt.2017.0188", issn="1751-8601", url="http://digital-library.theiet.org/content/journals/10.1049/iet-cdt.2017.0188" }