Energy efficiency using loop buffer based instruction memory organizations

A. Artes, F. Duarte, M. Ashouei, J. Huisken, J.L. Ayala, D. Atienza, F. Catthoor

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

Abstract

Energy consumption in embedded systems is strongly dominated by instruction memory organizations. Based on this, any architectural enhancement introduced in this component will produce a significant reduction of the total energy budget of the system. Loop buffering is an effective scheme to reduce the energy consumption of the instruction memory organization. In this paper, a novel classification of architectural enhancements based on the use of loop buffer concept is presented. Using this classification, an energy design space exploration is performed to show the impact in the energy consumption on different application scenarios. From gate-level simulations, the energy analysis demonstrates that the instruction level paralellism of the system brings not only improvements in performance, but also improvements in the energy consumption of the system. The increase in instruction level paralellism makes easy the adaptation of the sizes of the loop buffers to the sizes of the loops that form the application, because gives more freedom to combine the execution of the loops that form the application.

Original languageEnglish
Title of host publicationProceedings of the Innovative Architecture for Future Generation High-Performance Processors and Systems, IWIA 2010
PublisherIEEE Computer Society
ISBN (Print)9780769543963
DOIs
Publication statusPublished - 1 Jan 2012
Externally publishedYes
Event2010 International Workshop on Innovative Architecture for Future Generation High-Performance Processors and Systems, (IWIA 2010) - Hilo, United States
Duration: 17 Jan 201019 Jan 2010

Conference

Conference2010 International Workshop on Innovative Architecture for Future Generation High-Performance Processors and Systems, (IWIA 2010)
Abbreviated titleIWIA2010
Country/TerritoryUnited States
CityHilo
Period17/01/1019/01/10

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