Auto-vectorization in C++ compilers

April 13, 2012 Francisco Almeida Uncategorized

“Premature optimization is the root of all evils”… unless the compiler does it for you. Auto-vectorization is the next best thing to auto-parallelization: the compiler statically analyses the code and speeds up tight loops by spreading the iterated values across as many available registers as possible, resulting in speed-ups that could go as high as […]

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