Lightning Talk: How to Leverage SIMD Intrinsics for Massive Slowdowns - Matthew Kolbe - CppNow 2023

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Lightning talk: How to Leverage SIMD Intrinsics for Massive Slowdowns - Matthew Kolbe - CppNow 2023
Slides: github.com/boostcon/cppnow_pr...
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What happens when you naively see an opportunity to apply a compiler intrinsic function? A lot more than you might think. I'll show the first performance-crushing consequence of typing "_mm" into your code, and point you towards how you can effectively use them.
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Matthew Kolbe
I'm a quant asset manager who uses C++ to push the limits of what derivative pricing with stochastic differential equations can accomplish.
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Video Sponsors: think-cell and Bloomberg Engineering
Audience Audio Sponsors: Innoplex and Maryland Research Institute
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Videos Filmed & Edited By Bash Films: bashfilms.com/
CZcams Channel Managed & Optimized By Digital Medium Ltd: events.digital-medium.co.uk
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CppNow 2024
www.cppnow.org​
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#boost #cpp #simd #cppprogramming

[@dat_21]

Microarchitecture knowledge is essential.

[@axe863]

This is so true 😅

[@PedroOliveira-sl6nw]

For a moment I thought he was going to show how to use SIMD for destructing objects. I was expecting some reinterpret_cast into an object of same size but only primitive types and with some magic, parallelize destruction.. But I guess not