Highway – Efficient and performance-portable SIMD

touisteur 4y ago ↗

I'm sorry, it's been a long time some code made me feel so dumb. I mean I thought I had a good grasp on c++ and vectorized code and I can't find a simple example on how to use it properly. The benchmark example made me feel even more dumb.

Can someone help pointing what this code is supposed to do (yes I read the landing page and it doesn't help me much...), are there alternative libraries that do similar things and are there 'simpler' examples somewhere?

nn3 4y ago ↗

No offense, but while it was a bit long, all your questions had answers in the README.md. So if you read it, you speed read it too much.

janwas 4y ago ↗

:) The benchmark does contain some boilerplate and extra code for measurements but a simple example is at https://github.com/google/highway/blob/master/hwy/examples/b....

Or how about https://github.com/google/highway/blob/master/hwy/examples/s... for computing floor(log2(i))?

touisteur 4y ago ↗

Right it gives a taste, indeed.

touisteur 4y ago ↗

You're right. I went again and it started clicking when I saw references to other SIMD libraries. Thanks and sorry.

janwas 4y ago ↗

Thanks for posting :) Author here, happy to discuss.

Highway – Efficient and performance-portable SIMD (github.com)

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