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arXiv · 2107.08997

Dynamic Lockstep Processors for Applications with Functional Safety Relevance

Hans Dermot Doran·Timo Lang
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Abstract

Lockstep processing is a recognized technique for helping to secure functional-safety relevant processing against, for instance, single upset errors that might cause faulty execution of code. Lockstepping processors does however bind processing resources in a fashion not beneficial to architectures and applications that would benefit from multi-core/-processors. We propose a novel on-demand synchronizing of cores/processors for lock-step operation featuring post-processing resource release, a concept that facilitates the implementation of modularly redundant core/processor arrays. We discuss the fundamentals of the design and some implementation notes on work achieved to date.

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Hans Dermot Doran, Timo Lang. 2021-07-19. Dynamic Lockstep Processors for Applications with Functional Safety Relevance. https://arxiv.org/abs/2107.08997

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