Methodology for Refinement and Optimisation of Dynamic Memory Management for Embedded Systems in Multimedia Applications

Authors: Leeman, Marc¹; Atienza, David²; Deconinck, Geert³; Florio, Vincenzo⁴; Mendías, José⁵; Ykman-Couvreur, Chantal⁶; Catthoor, Francky⁷; Lauwereins, Rudy⁸

Source: The Journal of VLSI Signal Processing, Volume 40, Number 3, July 2005 , pp. 383-396(14)

Publisher: Springer

Abstract:

In multimedia applications, run-time memory management support has to allow real-time memory de/allocation, retrieving and processing of data. Thus, its implementation must be designed to combine high speed, low power, large data storage capacity and a high memory bandwidth. In this paper, we assess the performance of our new system-level exploration methodology to optimise the memory management of typical multimedia applications in an extensively used 3D reconstruction image system [1, 2]. This methodology is based on an analysis of the number of memory accesses, normalised memory footprint¹ and energy estimations for the system studied. This results in an improvement of normalised memory footprint up to 44.2% and the estimated energy dissipation up to 22.6% over conventional static memory implementations in an optimised version of the driver application. Finally, our final version is able to scale perfectly the memory consumed in the system for a wide range of input parameters whereas the statically optimised version is unable to do this.

Keywords: multimedia; memory management; memory bandwidth; low power; memory footprint; dynamic memory management; memory hierarchy; dynamic data types; system-level exploration

Document Type: Research article

DOI: http://dx.doi.org/10.1007/s11265-005-5272-4

Affiliations: 1: ESAT/K.U. Leuven, Kasteelpark Arenberg 10, B-3001, Leuven, Belgium, Email: marc.leeman@ieee.org 2: DACYA/UCM, Avda. Complutense s/n, 28040, Madrid, Spain, Email: datienza@dacya.ucm.es 3: ESAT/K.U. Leuven, Kasteelpark Arenberg 10, B-3001, Leuven, Belgium, Email: geert.deconinck@esat.kuleuven.ac.be 4: ESAT/K.U. Leuven, Kasteelpark Arenberg 10, B-3001, Leuven, Belgium, Email: vincenzo.deflorio@ua.ac.be 5: DACYA/UCM, Avda. Complutense s/n, 28040, Madrid, Spain, Email: mendias@dacya.ucm.es 6: IMEC vzw, Kapeldreef 71, B-3001, Leuven, Belgium, Email: ykman@imec.be 7: IMEC vzw, Kapeldreef 71, B-3001, Leuven, Belgium, Email: catthoor@imec.be 8: IMEC vzw, Kapeldreef 71, B-3001, Leuven, Belgium, Email: lauwerei@imec.be

Publication date: 2005-07-01

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• By this author: Leeman, Marc ;  Atienza, David ;  Deconinck, Geert ;  Florio, Vincenzo ;  Mendías, José ;  Ykman-Couvreur, Chantal ;  Catthoor, Francky ;  Lauwereins, Rudy

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