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Estimation de la consommation dans la conception système des applications embarquées temps réels

Johann Laurent 1
1 Lab-STICC_UBS_CACS_MOCS
Lab-STICC - Laboratoire des sciences et techniques de l'information, de la communication et de la connaissance
Abstract : Today, power and energy consumption have become, as time and area, an important constraint when you design a system. Indeed modern aplications use more and more processing and memory ressources so these lead a significant increase of consumption. Furthermore, embedded software impact is preponderant in real time system so the code optimisation has a great impact onto the consumption constraint.
Several research teams have already devlopped estimation methodologies for processor but almost are at instruction level (ILPA). With this kind of method you have to measure the consumption of each instruction of the instruction set and also the inter-instruction consumptio overhead. For complex architecture, this kind of methodology is not adapted due to the prohibitive number of consumption measures. So the characterisation time of this kind of architecture is too important futhermore with this method is very difficult to take into account the external environment.
For actual architecture another method is needed to reduce the characterisation time while preserving the accuracy. The reduction of the characterisation time have to be realized by increasing the abstraction level.
So, we propose here a new approach based on a functional and architectural analysis of the target in consumption point of view (FLPA). Our methodoly has two steps: the first one is a modeling step and the second is estimation step.
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Theses
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https://tel.archives-ouvertes.fr/tel-00077293
Contributor : Johann Laurent <>
Submitted on : Tuesday, May 30, 2006 - 2:28:58 PM
Last modification on : Friday, September 25, 2020 - 3:35:46 AM
Long-term archiving on: : Monday, April 5, 2010 - 9:48:31 PM

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  • HAL Id : tel-00077293, version 1

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Johann Laurent. Estimation de la consommation dans la conception système des applications embarquées temps réels. Autre. Université de Bretagne Sud, 2002. Français. ⟨tel-00077293⟩

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