Google Highway

“that seems to me like a bulky software abstraction layer even if it is a so-called "zero cost" abstraction”

“It’s portable SIMD done right.”

“Highway is pretty nice but also quite elaborate when it comes to dealing with multiple vectorized versions and dispatch”

“portable intrinsics plus simpler runtime dispatching using our Highway library”

“Calling it "proven" production software is a joke.”

“It is fault tolerant, distributed broker which gurantees durable queues, pub/sub and RPC all into one easy to use programming model.”

“Now, there is an on-ramp. A new Highway tutorial just landed in the official repo”

“My experience is that even two separate implementations diverge over time and I'd have low confidence in bringing the same updates and improvements to all”

“with the scope and maturity that https://github.com/google/highway brings to C++”

“Highway is my personal favourite, thanks in part for its support for runtime dispatch.”

“using Highway also means that you can detect and take advantage of e.g. AVX2 or AVX-512 in one binary that still works on CPUs without those instruction sets”

“Highway generates rather bad code as soon as you step outside a pretty narrow vertically-oriented scope”

“imo this is one of the greatest libs ever written”

“We only use Highway for our hottest hot paths that we feel benefit from that specialization.”

“I am fairly confident this is about as good as it gets in current C++.”

“Runtime dispatch is still a PITA in Highway, especially compared to ISPC.”

“It doesn’t add much value for the kind of SIMD code I write.”

“our security team has called Highway critical infrastructure and helped to harden the repo”

“it would make sense for doing my own personal programming challenges.”

“You need runtime dispatch (a la Google Highway) to solve this.”

“This is a fun way to see how well autovectorization works, with the same source code.”

“Highway is basically a thin wrapper over intrinsics, which you can still drop down to where it helps”

“Highway provides such an abstraction for arbitrary vector lengths and maps them to intrinsics.”

“It's basically portable intrinsics, and a much more complete set (>300) than the ~50 in std.”

“apart from that it's quite simple to use”

“This works quite well in practice.”

“I learned to appreciate SIMD (via highway) as one sweet spot of low-dependency portability”

“many of these benefits of ISPC can be had from explicit SIMD libraries like Google's Highway”

“but in an esotheric and not so ergonomic way.”

“In C++, this can be achieved portably using the Highway library”

“The highway library is exactly the kind of a simpler option to use SIMD.”