Analysis of on-line self-testing policies for real-time embedded multiprocessors in DSM technologies

  • Authors:
  • O. Heron;J. Guilhemsang;N. Ventroux;A. Giulieri

  • Affiliations:
  • CEA, LIST, 91191 Gif-sur-Yvette CEDEX, France;CEA, LIST, 91191 Gif-sur-Yvette CEDEX, France;CEA, LIST, 91191 Gif-sur-Yvette CEDEX, France;LEAT, Université de Nice-Sophia Antipolis, Valbonne, F-06560, France

  • Venue:
  • IOLTS '10 Proceedings of the 2010 IEEE 16th International On-Line Testing Symposium
  • Year:
  • 2010

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Abstract

Advances in DSM technologies have a negative impact on yield and reliability of digital circuits. On-line self-testing is an interesting solution for detecting permanent and intermittent faults in non safety critical and real-time embedded multiprocessors. In this paper, we describe and evaluate three scheduling and allocation policies for on-line self-testing. We show that a policy that periodically applies a test procedure to the different processors in a way that considers idle times, test history of processors and task priorities offers a good trade-off between performance and fault detection probability.