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CRMPSoC: New Solution for Feasible Reconfigurable MPSoC

  • Imen KhemaissiaEmail author
  • Olfa Mosbahi
  • Mohamed Khalgui
  • Zhiwu Li
Conference paper
Part of the Communications in Computer and Information Science book series (CCIS, volume 743)

Abstract

This paper is dealing with the reconfiguration of a flexible real-time Network-on-Chip (NoC) in Multiprocessors System-on-Chip MPSoC architectures. We assume that each NoC’s node is composed of a processor and a router. A processor is assumed to be composed of dependent periodic and aperiodic operating system tasks. The paper addresses low-power adaptations of MPSoC when dynamic reconfigurations of the periodic and aperiodic tasks (sharing resources) are applied at run-time to save or improve the performance. The reconfiguration is defined as any operation allowing the addition-removal-update of periodic dependent OS (Operating System) tasks that share resources. For two added dependent tasks assigned to different processors, a message is added automatically on the NoC. After a such scenario, several real-time constraints may be violated and the power consumption increased.In order to resolve this problem, a new approach CRMPSoC (Abbrev. Cynapsys-Reconfigurable MPSoC) that is composed of two steps is proposed: (1) Applying a reconfiguration: Selection of reconfiguration scenarios, and (2) System Feasibility: A multi-agent architecture based on a master/slave model is defined where a slave agent is assigned to each node to verify the system/bus feasibility, and a master is proposed for the whole architecture if any perturbation occurs at run-time by proposing software or hardware solutions. Since the kernel is not reconfigurable, we develop a new middleware that will support the different steps of our approach. The latter is applied to a real case study for the evaluation of the paper’s contribution.

Keywords

Embedded system Reconfigurable MPSoC Multi-agent Real-time and low-power scheduling Middleware 

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Copyright information

© Springer International Publishing AG 2017

Authors and Affiliations

  • Imen Khemaissia
    • 1
    • 5
    Email author
  • Olfa Mosbahi
    • 1
  • Mohamed Khalgui
    • 2
  • Zhiwu Li
    • 3
    • 4
  1. 1.Faculty of SciencesTunis El-Manar UniversityTunisTunisia
  2. 2.Cynapsys Company, Tunisia-France-Germany, LISI Lab, INSAT InstituteUniversity of CarthageTunisTunisia
  3. 3.Institute of Systems EngineeringMacau University of Science and TechnologyTaipaChina
  4. 4.School of Electro-Mechanical EngineeringXidian UniversityXi’anChina
  5. 5.College of Computer ScienceKing Khalid UniversityAbhaSaudi Arabia

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