What is Vectorizationand?

What is Vectorization?

Vectorization is the name given to transforming a software loop from running sequentially on an array of data to performing the same computation fully in parallel, by sending the data to a GPU or CPU SIMD extensions. Vectorization uses techniques from loop optimizations to transform loops into faster parallelizable versions, such as “unrolling” a loop into all its element-wise actions, and loop distribution (also called “loop sectioning”), which breaks the array into segments that are the right size to fit in parallel into your GPU or CPU SIMD extensions. In theory, a good optimizing compiler can do vectorization optimizations automatically for simple loops, but often you have to do it yourself.

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