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I/O contention aware mapping of multi-criticalities real-time applications over many-core architectures

Abdallah, Laure and Jan, Mathieu and Ermont, Jérôme and Fraboul, Christian I/O contention aware mapping of multi-criticalities real-time applications over many-core architectures. (2016) In: 22nd IEEE Real-Time and embedded Technology and Applications symposium (RTAS 2016), 11 April 2016 - 14 April 2016 (Vienna, Austria).

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Official URL: http://2016.rtas.org/wp-content/uploads/2016/04/RTAS-WiP-paper-5.pdf

Abstract

Many-core architectures are more promising hardware to design real-time systems than multi-core systems as they should enable an easier mastered integration of a higher number of applications, potentially of different level of criticalities. However, the worst-case behavior of the Network-on-Chip (NoC) for both inter-core and core-to-Input/Output1 (I/O) communications of critical applications must be established. The mapping over the NoC of both critical and non-critical applications has an impact on the network contention these critical communications exhibit. So far, all existing mapping strategies have focused on inter-core communications. However, many-cores in embedded real-time systems can be integrated within backbone Ethernet networks, as they mostly provide Ethernet controllers as I/O interfaces. In this work, we first show that Ethernet packets can be dropped due to an internal congestion in the NoC, if these coreto I/O communications are not taken into account while mapping applications. To solve this issue, we show on an avionic case study the benefits of the core-to-I/O contention-aware mapping strategy we propose.

Item Type:Conference or Workshop Item (Paper)
Additional Information:Thanks to RTAS. The definitive version can be found at http://2016.rtas.org/work-in-progress/ The original PDF is available at: http://2016.rtas.org/wp-content/uploads/2016/04/RTAS-WiP-paper-5.pdf
HAL Id:hal-01445139
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution:French research institutions > Commissariat à l'Energie Atomique et aux énergies alternatives - CEA (FRANCE)
French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
Université de Toulouse > Université Toulouse - Jean Jaurès - UT2J (FRANCE)
Université de Toulouse > Université Toulouse 1 Capitole - UT1 (FRANCE)
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Deposited By: IRIT IRIT
Deposited On:10 Jan 2017 13:48

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