Towards code safety with high performance
Paper in proceedings, 2014

Reliability is a major issue for safety-critical embedded systems such as biomedical implants. In such systems, hardware fault tolerance techniques are usually not available in off-the-shelf processors, because of the intrinsic energy costs of hardware duplication or triplication. As an alternative, software schemes based on compiler transformations are used for error detection and recovery. A common software error class caused by hardware transient faults is Control-Flow Errors (CFEs). In this paper we demonstrate how a new technique based on software instrumentation can benefit from loop-unrolling, with huge impact on control-flow reliability. We show the impact of loop-unrolling on fault-coverage and performance of these schemes. Thanks to the proposed approach, significant fault-coverage concerning CFE can be obtained with no extra costs, and even faster than other available techniques with the same fault-coverage level.


G. Nazarian

Delft University of Technology

L. Carro

Universidade Federal do Rio Grande do Sul (UFRGS)

Georgi Gaydadjiev

Chalmers, Computer Science and Engineering (Chalmers), Computer Engineering (Chalmers)

Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)

03029743 (ISSN) 16113349 (eISSN)

Vol. 8350 209-220

Subject Categories

Computer and Information Science



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