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Erschienen in:
2011 | OriginalPaper | Buchkapitel
Litmus: Running Tests against Hardware
verfasst von : Jade Alglave, Luc Maranget, Susmit Sarkar, Peter Sewell
Erschienen in: Tools and Algorithms for the Construction and Analysis of Systems
Verlag: Springer Berlin Heidelberg
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Shared memory multiprocessors typically expose subtle, poorly understood and poorly specified relaxed-memory semantics to programmers. To understand them, and to develop formal models to use in program verification, we find it essential to take an empirical approach, testing what results parallel programs can actually produce when executed on the hardware. We describe a key ingredient of our approach, our litmus tool, which takes small ‘litmus test’ programs and runs them for many iterations to find interesting behaviour. It embodies various techniques for making such interesting behaviour appear more frequently.