MicroPower - Towards Low-power Microprocessors with Reversible Computing

Holger Bock Axelsen; Robert Glück; Alexis De Vos; Michael Kirkedal Thomsen

MicroPower - Towards Low-power Microprocessors with Reversible Computing

Holger Bock Axelsen, Robert Glück, Alexis De Vos, Michael Kirkedal Thomsen

Datalogisk Institut

Abstract

Physics tells us that at the microscopic level the evolution of a (micro-) state is reversible, ie deterministic both forward and backward in time. In contrast, our best models of computation are usually not reversible at the microscopic level, and this carries over to actual implementations in computers. As a consequence of basic thermodynamics, this irreversibility directly contributes to heat dissipation, and therefore power consumption. However, there is nothing inherently irreversible about computation, and using reversible computation models could therefore lead to lowered power consumption. In the new MicroPower project, the Department of Computer Science at the University of Copenhagen is collaborating with the University of Ghent and the hearing-aid company Oticon, to advance the theory and practice of reversible computing at the language, logic and circuit level.

Originalsprog	Engelsk
Tidsskrift	ERCIM News
Vol/bind	79
Sider (fra-til)	20-21
Antal sider	2
Status	Udgivet - 2009

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http://ercim-news.ercim.eu/en79/special-theme/micropower-towards-low-power-microprocessors-with-reversible-computing

Citationsformater

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AU - Axelsen, Holger Bock

AU - Glück, Robert

AU - De Vos, Alexis

AU - Thomsen, Michael Kirkedal

PY - 2009

Y1 - 2009

N2 - Physics tells us that at the microscopic level the evolution of a (micro-) state is reversible, ie deterministic both forward and backward in time. In contrast, our best models of computation are usually not reversible at the microscopic level, and this carries over to actual implementations in computers. As a consequence of basic thermodynamics, this irreversibility directly contributes to heat dissipation, and therefore power consumption. However, there is nothing inherently irreversible about computation, and using reversible computation models could therefore lead to lowered power consumption. In the new MicroPower project, the Department of Computer Science at the University of Copenhagen is collaborating with the University of Ghent and the hearing-aid company Oticon, to advance the theory and practice of reversible computing at the language, logic and circuit level.

AB - Physics tells us that at the microscopic level the evolution of a (micro-) state is reversible, ie deterministic both forward and backward in time. In contrast, our best models of computation are usually not reversible at the microscopic level, and this carries over to actual implementations in computers. As a consequence of basic thermodynamics, this irreversibility directly contributes to heat dissipation, and therefore power consumption. However, there is nothing inherently irreversible about computation, and using reversible computation models could therefore lead to lowered power consumption. In the new MicroPower project, the Department of Computer Science at the University of Copenhagen is collaborating with the University of Ghent and the hearing-aid company Oticon, to advance the theory and practice of reversible computing at the language, logic and circuit level.

M3 - Journal article

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JO - ERCIM News

JF - ERCIM News

ER -

MicroPower - Towards Low-power Microprocessors with Reversible Computing

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