Designing Approximate Arithmetic Circuits with Combined Error Constraints

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26230%2F22%3APU144828" target="_blank" >RIV/00216305:26230/22:PU144828 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1109/DSD57027.2022.00110" target="_blank" >http://dx.doi.org/10.1109/DSD57027.2022.00110</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/DSD57027.2022.00110" target="_blank" >10.1109/DSD57027.2022.00110</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Designing Approximate Arithmetic Circuits with Combined Error Constraints

Popis výsledku v původním jazyce

Approximate circuits trading the power consumption for the quality of results play a key role in the development of energy-aware systems. Designing complex approximate circuits is, however, a very difficult and computationally demanding process. When deploying approximate circuits, various error metrics (e.g., mean average error, worst-case error, error rate), as well as other constraints (e.g., correct multiplication by~0), have to be considered. The state-of-the-art approximation methods typically focus on a single metric which significantly limits the  applicability of the resulting circuits. In this paper, we experimentally investigate how various error metrics and their combinations affect the reduction of the power consumption that can be achieved. To this end, we extend evolutionary-driven techniques that allow us to  effectively explore the design space of the approximate circuits. We identify principal limitations when complex error constraints are required as well as important correlations among the error metrics enabling the construction of circuits providing the best-known trade-offs between the power reduction and combined error constraints.

Název v anglickém jazyce

Designing Approximate Arithmetic Circuits with Combined Error Constraints

Popis výsledku anglicky

Approximate circuits trading the power consumption for the quality of results play a key role in the development of energy-aware systems. Designing complex approximate circuits is, however, a very difficult and computationally demanding process. When deploying approximate circuits, various error metrics (e.g., mean average error, worst-case error, error rate), as well as other constraints (e.g., correct multiplication by~0), have to be considered. The state-of-the-art approximation methods typically focus on a single metric which significantly limits the  applicability of the resulting circuits. In this paper, we experimentally investigate how various error metrics and their combinations affect the reduction of the power consumption that can be achieved. To this end, we extend evolutionary-driven techniques that allow us to  effectively explore the design space of the approximate circuits. We identify principal limitations when complex error constraints are required as well as important correlations among the error metrics enabling the construction of circuits providing the best-known trade-offs between the power reduction and combined error constraints.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

10201 - Computer sciences, information science, bioinformathics (hardware development to be 2.2, social aspect to be 5.8)

Projekt

<a href="/cs/project/GJ20-02328Y" target="_blank" >GJ20-02328Y: CAQtuS: Počítačem podporovaná kvantitativní syntéza</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceeding of 25th Euromicro Conference on Digital System Design 2022 (DSD'22)

ISBN

978-1-6654-7404-7

ISSN

—

e-ISSN

—

Počet stran výsledku

8

Strana od-do

785-792

Název nakladatele

Institute of Electrical and Electronics Engineers

Místo vydání

Gran Canaria

Místo konání akce

Maspalomas, Gran Canaria, Spain

Datum konání akce

31. 8. 2022

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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