Sep 14, 2009 · Vectorization is the process of converting an algorithm from operating on a single value at a time to operating on a set of values at one time. Modern CPUs provide direct …

Dec 7, 2024 · Vectorization doesn't mean that the compiler does it, just that SIMD instructions are used. When the compiler generates SIMD code it's generally called auto-vectorization.

Dec 11, 2017 · What does it mean to vectorize for-loops in Python? Is there another way to write nested for-loops? I am new to Python and on my research, I always come across the NumPy …

Sep 27, 2012 · Matlab 'vectorization', as the word is commonly used, is only about expressing loops in the form of (vectors of) matrix indices, and sometimes about writing things in terms of …

May 21, 2019 · Probably it's basically fine and only a bit slower than ideal vectorization if it has a core to itself, but less hyperthreading-friendly with the extra uops for shuffling.

Jan 3, 2009 · The v4 series of the gcc compiler can automatically vectorize loops using the SIMD processor on some modern CPUs, such as the AMD Athlon or Intel Pentium/Core chips. How …

Sep 30, 2024 · Footnote 1: Actually, when written as a loop instead of manually unrolled, GCC14 is very eager to vectorize with an overlap check, even for only 4 floats (1 vector) even with just …

Jul 14, 2011 · I just recently learned about vectorization. I know how to vectorize the sumsurface line but I am not sure how to include the if statement, I would really like to vectorize the whole …

Nov 21, 2011 · I think that simple loops like the one you wrote are vectorized by an optimizing compiler.

Mar 7, 2022 · I have a loop with a really low trip count where vectorization doesn't pay off, but the compiler vectorizes it nevertheless. Is there a portable way to tell a compiler not to vectorize a …