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Mitigating Soft Error Risks through Protecting Critical Variables and Blocks

  • Muhammad Shaikh Sadi
  • Md. Nazim Uddin
  • Md. Mizanur Rahman Khan
  • Jan Jürjens
Part of the Communications in Computer and Information Science book series (CCIS, volume 154)

Abstract

Down scaling of CMOS technologies has resulted in high clock frequencies, smaller features sizes and low power consumption. But it reduces the soft error tolerance of the VLSI circuits. Safety critical systems are very sensitive to soft errors. A bit flip due to soft error can change the value of critical variable and consequently the system control flow can completely be changed which may lead to system failure. To minimize the risks of soft error, this paper proposes a novel methodology to detect and recover from soft error considering only ‘critical code block’ and ‘critical variable’ rather than considering all variables and/or blocks in the whole program. The proposed method reduces space and time overhead in comparison to existing dominant approach.

Keywords

Soft Errors Safety Critical System Critical Variable Critical Block Criticality analysis Risk mitigation 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • Muhammad Shaikh Sadi
    • 1
  • Md. Nazim Uddin
    • 1
  • Md. Mizanur Rahman Khan
    • 1
  • Jan Jürjens
    • 2
  1. 1.Khulna University of Engineering and Technology (KUET)KhulnaBangladesh
  2. 2.TU DortmundGermany

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