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Xtream-Fit: An Energy-Delay Efficient Data Memory Subsystem for Embedded Media Processing.
- Source :
-
IEEE Transactions on Computer-Aided Design of Integrated Circuits & Systems . Jun2005, Vol. 24 Issue 6, p832-848. 17p. - Publication Year :
- 2005
-
Abstract
- Due to the critical role played by data memory subsystems in the performance and energy efficiency of embedded systems, the design of energy-efficient data memory architectures has received considerable attention in recent years. In this paper, we propose a novel special-purpose data memory subsystem called Xtreain-Fit which is aimed at achieving high energy-delay efficiency for streaming media applications. A key novelty of Xtream-Fit is that it exposes a single customization parameter, thus enabling a very simple and yet effective design space exploration methodology. A second key contribution of this paper is the ability to achieve very high energy-delay efficiency through a synergistic combination of: 1) special purpose memory subsystem components, namely, a streaming memory and a scratch-pad memory and (2) a novel task-based execution model that exposes/enhances opportunities for efficient prefetching, and aggressive dynamic energy conservation techniques targeting on-chip and off-chip memory components. Extensive experimental results show that Xtream-Fit reduces the energy-delay product by 22% to 61%, as compared to general-purpose memory sub- systems enhanced with state of the art cache decay and SDRAM power-mode control policies. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 02780070
- Volume :
- 24
- Issue :
- 6
- Database :
- Academic Search Index
- Journal :
- IEEE Transactions on Computer-Aided Design of Integrated Circuits & Systems
- Publication Type :
- Academic Journal
- Accession number :
- 17224112
- Full Text :
- https://doi.org/10.1109/TCAD.2005.844081