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VcDevel
std-simd
C++2020–2023
VcDevel / std-simd

std-simd

std::experimental::simd for GCC [ISO/IEC TS 19570:2018]

Systems & Infrastructure
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5Distinct people
7Mentions
1Explicit recommenders
656GitHub stars
REPOSITORY AT A GLANCE

What to know before exploring

What it is

std::experimental::simd for GCC [ISO/IEC TS 19570:2018]

GitHub

Where it is used

No documented product use has been verified yet.

What people are saying

If you need to work on large matrices, Eigen is highly recommended. If you need to do a stream of custom processing in small steps, Eigen is not a good fit. Eigen is a super…

corysama used a recommendation phrase. One indexed comment matches. This is a phrase match, not a verdict.

No classified warning is attached to this page. Read the discussions before treating silence as approval.

Also in these discussions

Mentioned in the same Hacker News threads. That is not proof they are substitutes.

This week on Hacker News

Nov 8–Nov 15 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/15/2026, 9:28:18 AM UTC.

No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.

Mentions over time

HN mentions by year7 dated mentions

Observed mentions: 2020-08-04 16:48:41 UTC to 2023-10-07 08:05:03 UTC.

0122020-01-01 00:00:00 UTC to 2021-01-01 00:00:00 UTC (exclusive): 2 mentions; 0 submissions, 2 comments20202021-01-01 00:00:00 UTC to 2022-01-01 00:00:00 UTC (exclusive): 2 mentions; 0 submissions, 2 comments20212022-01-01 00:00:00 UTC to 2023-01-01 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 comments2023-01-01 00:00:00 UTC to 2024-01-01 00:00:00 UTC (exclusive): 2 mentions; 0 submissions, 2 comments2023

Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.

View mention counts and date ranges
UTC ranges include their start and exclude their end. Select a period to filter the source evidence.
PeriodStart (UTC)End (exclusive, UTC)MentionsSubmissionsComments
20202020-01-01 00:00:00 UTC2021-01-01 00:00:00 UTC202
20212021-01-01 00:00:00 UTC2022-01-01 00:00:00 UTC202
20222022-01-01 00:00:00 UTC2023-01-01 00:00:00 UTC101
20232023-01-01 00:00:00 UTC2024-01-01 00:00:00 UTC202

What Hacker News says

1 sources
corysama·Dec 6, 2022
Bad news. For SIMD there are not cross-platform intrinsics. Intel intrinsics map directly to SSE/AVX instructions and ARM intrinsics map directly to NEON instructions. For cross-platform, your best bet is probably https://github.com/VcDevel/std-simd There's https://eigen.tuxfamily.org/index.php?title=Main_Page But, it's tremendously complicated for anything other than large-scale linear algebra. And, there's https://github.com/microsoft/DirectXMath But, it has obvious biases :P
In Optimizing compilers reload vector constants needlessly

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