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Debugging non-determinism: valgrind followed by fprintf+diff. Issue found but wondering if there are other useful tools?

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In which context you need determinism? Do you use journaling (replay debugging) technique in your high level code?

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just tools code that should have deterministic output for given input. Curious what else could help find root of nondeterminism.

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Are you using CUDA?

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I would really like something like valgrind for CUDA but no this is just C++ on x86.

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