Authors: Palkovic, Martin; Brockmeyer, Erik; Vanbroekhoven, Peter; Corporaal, Henk; Catthoor, Francky

Source: Journal of Low Power Electronics, Volume 2, Number 1, April 2006 , pp. 9-17(9)

Publisher: American Scientific Publishers

Abstract:

Data transfers and storage are dominating contributors to the area and power consumption for all modern multimedia applications. A cost-efficient realisation of these systems can be obtained by using high-level memory optimisations. This paper demonstrates that the state-of-the-art memory optimisation techniques only partly can deal with code from real-life multimedia applications. We propose a systematic preprocessing methodology that can be applied on top of the existing work. This opens more opportunities for existing memory optimisation techniques. Our methodology is complemented with a postprocessing step, which eliminates the negative effects of preprocessing and may further improve the code quality. Our methodology has been applied on several real-life multimedia applications. Results show a decrease in the number of main memory accesses up to 45.8% compared to applying only state-of-the-art techniques.

Keywords: SOURCE CODE PREPROCESSING; DATA DEPENDENT CONSTRUCTS; HIGH-LEVEL TRANSFORMATIONS; GLOBAL LOOP TRANSFORMATIONS; PROFILING; SCENARIOS; MP3 AUDIO DECODER

Document Type: Research article

DOI: http://dx.doi.org/10.1166/jolpe.2006.002

Publication date: 2006-04-01

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• The electronic systems that can operate with very low power are of great technological interest. The growing research activity in the field of low power electronics requires a forum for rapid dissemination of important results: Journal of Low Power Electronics (JOLPE) is that international forum which offers scientists and engineers timely, peer-reviewed research in this field.
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