AVX-512 Is an Intel Gimmick To Win Benchmarks and should die a painful death
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Fox2232
That's what someone gets for handing out guest spoon to eat spaghetti.
Kaarme
It's good that the years of living in the USA haven't removed his Finnish heritage of straightforwardly saying what he thinks of things.
mbk1969
https://lemire.me/blog/2018/09/07/avx-512-when-and-how-to-use-these-new-instructions/
https://ieeexplore.ieee.org/document/9020587
PS
I can`t understand what Linux and GIT have to do with AVX-512.
Turanis
Haha,yeah f** u Intel(ligence), fu nvidia.
https://media.giphy.com/media/xndHaRIcvge5y/source.gif
coth
Linus should deal with own problems, like massive Linux fragmentation and incompatibility, instead of wasting time and resources on terminology.
Alessio1989
fellix
Old man yells at yet another x86 ISA extension. 😀
JamesSneed
He does have a point. AVX is such a fringe thing especially in 256 and 512 usage yet it gets into many reviews. Of course as long as AMD keeps innovating silly things Intel does will disappear as they have actual competition.
schmidtbag
mbk1969
TieSKey
https://upload.wikimedia.org/wikipedia/commons/thumb/f/fc/Caterpillar_795F_size_comparison.JPG/1280px-Caterpillar_795F_size_comparison.JPG
https://upload.wikimedia.org/wikipedia/commons/thumb/f/fc/Caterpillar_795F_size_comparison.JPG/1280px-Caterpillar_795F_size_comparison.JPG
Let me add an analogy. The truck on the left your regular SIMD instruction, on the right is avx512.... yes, it can carry a damn lot, but u need special roads, special pilots, special security measures, warm up time, etc, etc
And it won't really be cost effective unless u fill it up completely (and have the RAM speed to keep it fed). Then add all the complexity around special paths and cases, even between intel cpus, for little benefit outside of very specific use cases.
Let me ask u, have u seen one of those mega trucks outside of mining grounds?
mbk1969
@TieSKey
And where in your analogy stands Linus Torvalds? How all you wrote does relate to Linux (and any other OS)?
schmidtbag
mbk1969
schmidtbag
mbk1969
mbk1969
Alessio1989
schmidtbag
https://www.phoronix.com/scan.php?page=news_item&px=MTI1Njc
I didn't say apps... We're talking about instructions at the kernel level. The kernel has the ability to disable instructions if necessary.
Right, hence my point earlier: he doesn't rant about things he isn't involved in. Why would he, a kernel developer, spend so much time complaining about something he ostensibly doesn't work with? Every time he's had a complaint, it's because the subject of his rant interfered with his workflow.
AVX-512 does more than FP ops. Regardless, this here is one example of its involvement in the kernel:
tsunami231
is ANYONE modest about how they out things these days? the all do in way that cause the most damage/buzz