Energy-aware register file re-partitioning for clustered VLIW architectures

Research output: Chapters, Conference Papers, Creative and Literary Works (RGC: 12, 32, 41, 45)32_Refereed conference paper (with ISBN/ISSN)

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Detail(s)

Original languageEnglish
Title of host publicationProceedings of the Asia and South Pacific Design Automation Conference, ASP-DAC
Pages805-810
Publication statusPublished - 2009

Conference

TitleAsia and South Pacific Design Automation Conference 2009, ASP-DAC 2009
PlaceJapan
CityYokohama
Period19 - 22 January 2009

Abstract

VLIW architectures have gained acceptance in embedded systems. Traditional monolithic register file is not suitable for VLIW architectures with a large number of functional units. Clustered VLIW architecture is often applied, where the register file is partitioned into a number of smaller register files. Register files represent a substantial portion of the energy consumption in modern processors, and it is growing rapidly with wider instruction width. Most of the known clustered VLIW architectures partition the register file evenly among clusters. In this paper, we study the effect of energy consumption with register file re-partitioning on clustered VLIW architecture, where register files are not necessarily partitioned evenly. We present algorithms to compute energy-efficient re-partition of register files under different conditions. The impact of different intercluster communication models as well as the impact of program behavior on the register file re-partitioning are analyzed in this paper. Experimental results show that energy saving can be achieved using the proposed techniques. ©2009 IEEE.

Citation Format(s)

Energy-aware register file re-partitioning for clustered VLIW architectures. / Zhao, Yingchao; Xue, Chun Jason; Li, Minming; Hu, Bessie.

Proceedings of the Asia and South Pacific Design Automation Conference, ASP-DAC. 2009. p. 805-810 4796579.

Research output: Chapters, Conference Papers, Creative and Literary Works (RGC: 12, 32, 41, 45)32_Refereed conference paper (with ISBN/ISSN)