---
title: Three Steps from Scalar to SIMD
link: https://www.computerenhance.com/p/three-steps-from-scalar-to-simd
source: computerenhance-com
published: 2026-08-03T17:35:21Z
updated: 2026-08-03T17:35:21Z
first_seen: 2026-09-19T21:30:23.395188495Z
summary: When we want to change the interior of a loop (with complex control flow) from processing one thing to processing several at a time, it's best to tackle the problem in three sequential steps.
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When we want to change the interior of a loop (with complex control flow) from processing one thing to processing several at a time, it's best to tackle the problem in three sequential steps.

Aug 03, 2026

∙ Paid

[![](https://substackcdn.com/image/fetch/$s_!SESu!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fd43570a2-1431-41d8-a8e6-26df51f9de46_3840x2160.jpeg)](https://substackcdn.com/image/fetch/$s_!SESu!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fd43570a2-1431-41d8-a8e6-26df51f9de46_3840x2160.jpeg)

*This is the thirteenth video in Part 5 of the Performance-Aware Programming series. Please see the [Table of Contents](https://www.computerenhance.com/p/table-of-contents) to quickly navigate through the rest of the course as it is updated, and [the code repository](https://github.com/cmuratori/computer_enhance) for downloadable code listings.*