NDLI: Leveraging Multi-core Computing Architectures in Avionics

Content Provider	IEEE Xplore Digital Library
Author	Nowotsch, J. Paulitsch, M.
Copyright Year	2012
Abstract	Multi-core computer architectures are on the forefront in consumer electronics and adaptation in safety-critical applications such as avionics could be beneficial due to their potential increased performance. Yet, there are challenges to deploy cutting edge multi-core architectures for safety-critical applications. New computing architectures are more integrated and optimized for average cases. On the other side, safety-critical applications need to be designed for the worst case. For example, the impact of integrating critical applications is not fully understood yet, especially with respect to execution times of critical paths. This paper proposes and argues an approach to quantify the impact of integration of multiple independent applications onto multi-core platforms and evaluates the approach on a specific potential future avionics computing platform. Evaluation results focusing on execution estimates show that multi-core computers may be used for safety-critical applications, but the worst-case execution time (WCET) can be multiple times slower than the same application running on a single core without other cores running interfering applications. The actual factor is very dependent on the application's use of shared resources like memory.
Starting Page	132
Ending Page	143
File Size	410731
Page Count	12
File Format	PDF
ISBN	9781467309387
DOI	10.1109/EDCC.2012.27
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-05-08
Publisher Place	Romania
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	multi-core worst-case execution time Program processors Multicore processing Operating systems Aerospace electronics Hardware avionics safety-critical applications
Content Type	Text
Resource Type	Article

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