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with std::reduce() such code, while it compiles at least under MSVC, MAY occasionally provide wrong results

Another Quote:

if you happen to need something beyond that – take a deep breath and allocate at least several months to understand how does parallelism really work under the hood.

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as long as serial code provides good-enough response times from end-user perspective – DON’T PARALLELIZE

Another Quote:

out of all the premature optimizations, premature parallelization is the most premature one

Abstract:

I made an experiment which demonstrates Big Fat Dangers(tm) of implying that parallelization can be made as simple as just adding a policy parameter to your std:: call.

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it is still necessary to understand what we’re doing

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we’re just narrowly avoiding a disaster without understanding how close we were

Another Quote:

there is a chance that intuitive::lt MIGHT be a good thing to make behaviour of our C++ code to correspond better to our-expectations-when-we’re-reading-it