Clustered Loop Buffer Organization for Low Energy VLIW Embedded Processors.

M. Jayapala, F. Barat, T. Aa, van der, F. Catthoor, H. Corporaal, G. Deconinck

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

34 Citaten (Scopus)
120 Downloads (Pure)

Samenvatting

Current loop buffer organizations for very large instruction word processors are essentially centralized. As a consequence, they are energy inefficient and their scalability is limited. To alleviate this problem, we propose a clustered loop buffer organization, where the loop buffers are partitioned and functional units are logically grouped to form clusters, along with two schemes for buffer control which regulate the activity in each cluster. Furthermore, we propose a design-time scheme to generate clusters by analyzing an application profile and grouping closely related functional units. The simulation results indicate that the energy consumed in the clustered loop buffers is, on average, 63 percent lower than the energy consumed in an uncompressed centralized loop buffer scheme, 35 percent lower than a centralized compressed loop buffer scheme, and 22 percent lower than a randomly clustered loop buffer scheme.
Originele taal-2Engels
Pagina's (van-tot)672-683
Aantal pagina's12
TijdschriftIEEE Transactions on Computers
Volume54
Nummer van het tijdschrift6
DOI's
StatusGepubliceerd - 2005

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