Reliable code generation and execution on unreliable hardware under joint functional and timing reliability considerations

Semeen Rehman, Anas Toma, Florian Kriebel, Muhammad Shafique, Jian Jia Chen, Jorg Henkel

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

To enable reliable embedded systems, it is imperative to leverage the compiler and system software for joint optimization of functional correctness, i.e., vulnerability indexes, and timing correctness, i.e., the deadline misses. This paper considers the optimization of the Reliability-Timing (RT) penalty, defined as a linear combination of the vulnerability indexes (reliability penalties) and the deadline misses. We propose a multi-layer approach to achieve reliable code generation and execution at compilation and system software layers for embedded systems. This is enabled by the concept of generating multiple versions, for given application functions, with diverse performance and reliability tradeoffs, by exploiting different reliability-guided compilation options. Based on the reliability and execution time profiling of these versions, our reliability-driven system software employs dynamic version selections to dynamically select a suitable version of a function according to the execution behavior of the previous functions. Specifically, our scheme builds a schedule table offline to optimize the RT penalty, and uses this table at run time to select suitable versions for the subsequent functions properly. A complex real-world application of 'secure video and audio processing' composed of various functions is evaluated for reliable code generation and execution. The reliability analysis and evaluation is performed on a reliability-aware processor simulator.

Original languageEnglish (US)
Title of host publication2013 IEEE 19th Real-Time and Embedded Technology and Applications Symposium, RTAS 2013
Pages273-282
Number of pages10
DOIs
StatePublished - 2013
Event2013 IEEE 19th Real-Time and Embedded Technology and Applications Symposium, RTAS 2013 - Philadelphia, PA, United States
Duration: Apr 9 2013Apr 11 2013

Publication series

NameReal-Time Technology and Applications - Proceedings
ISSN (Print)1080-1812

Conference

Conference2013 IEEE 19th Real-Time and Embedded Technology and Applications Symposium, RTAS 2013
CountryUnited States
CityPhiladelphia, PA
Period4/9/134/11/13

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Hardware and Architecture
  • Software

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