[Tom's Hardware] Linus Torvalds Wishes Intel's AVX-512 A Painful Death - Page 3 - Overclock.net - An Overclocking Community

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[Tom's Hardware] Linus Torvalds Wishes Intel's AVX-512 A Painful Death

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post #21 of 33 (permalink) Old 07-13-2020, 04:11 PM
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If you eliminate AVX related transistors and replace it with dedicated DSPs for each workload (say A.I. specific workloads, H.266 etc) then yes you will get ultra performance computing for those tasks, but then that's it, that's the end. You will still have wasted the space because you can't do it anything other than those specialized tasks. With raw 256/512-bit registers and those hundreds of specialized instructions that work on those big registers, you should be able to do pretty much anything that is computable. The limits are literally endless with AVX and the only limit is your knowledge of computer science, physics and mathematics. With AVX, at least humanity have the power(more like potential) to become Divergent lmao, right!?

I think this is why we always do need something "raw" to invent new better things. I don't know how accurate this would be but philosophically it seems to that this might be the point where the concept of CISC might have been necessary. Indeed there isn't enough workload for AVX512 in common day to day tasks but who knows about the future.

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post #22 of 33 (permalink) Old 07-13-2020, 08:35 PM
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Quote: Originally Posted by Liranan View Post
And then mitigations were applied and performance was so good that people turned to ARM and AMD for their super computers.
I just read that the LINPACK crown is now held by an ARM based cluster:
'The new top system, Fugaku, turned in a High Performance Linpack (HPL) result of 415.5 petaflops, besting the now second-place Summit system by a factor of 2.8x. Fugaku, is powered by Fujitsu’s 48-core A64FX SoC, becoming the first number one system on the list to be powered by ARM processors.'

The number two spot isn't held by Intel or AMD either, it's held by a IBM Power9 cluster:
'Number two on the list is Summit, an IBM-built supercomputer that delivers 148.8 petaflops on HPL. The system has 4,356 nodes, each equipped with two 22-core Power9 CPUs, and six NVIDIA Tesla V100 GPUs.'

There are no AMD based HPC clusters running in the LINPACK top ten.
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post #23 of 33 (permalink) Old 07-13-2020, 08:37 PM
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Quote: Originally Posted by EniGma1987 View Post
You mean all the things offloaded to server NICs since one of the very most important things for data centers and financial markets is freeing up CPU cycles?
You're not going to be doing FFT on a NIC or any matrix operations whatsoever for that matter.
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post #24 of 33 (permalink) Old 07-13-2020, 09:16 PM
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Quote: Originally Posted by oskullop View Post
I see n1 starstarstarstarstar poster on here gg.

Linus is right once again and he's not afraid to say it.

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wat
Quote: Originally Posted by Liranan View Post
Torvalds definitely doesn't post here, if he did he'd get banned within minutes.
i uhh... maybe.



the main thing that gets you tossed off of OCN is outright insulting other people.



or repeated star triggering if the mods don't like you.

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post #25 of 33 (permalink) Old 07-14-2020, 05:48 AM
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Quote: Originally Posted by skupples View Post
wat

i uhh... maybe.



the main thing that gets you tossed off of OCN is outright insulting other people.



or repeated star triggering if the mods don't like you.
So you mean...uh, he would get banned instantly? It is Linus we are talking about after all. He goes 0-60 quicker than my car.
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post #26 of 33 (permalink) Old 07-14-2020, 11:58 PM
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Quote: Originally Posted by skupples View Post
wat

i uhh... maybe.



the main thing that gets you tossed off of OCN is outright insulting other people.



or repeated star triggering if the mods don't like you.
You're not familiar with him are you? That guys a volcano ready to burst and when he toes the tirade doesn't end.

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post #27 of 33 (permalink) Old 07-15-2020, 01:45 PM
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I saw some MATLAB benchmarks with Intel CPU's using AVX512 vs. AMD (I don't remember the specific CPU's). It came out bad for Intel.
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post #28 of 33 (permalink) Old 07-15-2020, 05:03 PM
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Anyone want to start a thread about Sept 2nd? I'm feeling a bit lazy.
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post #29 of 33 (permalink) Old 07-16-2020, 08:06 PM
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Quote: Originally Posted by Liranan View Post
You're not familiar with him are you? That guys a volcano ready to burst and when he toes the tirade doesn't end.
just the basics. I've seen at least one or two FU to NV videos.

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post #30 of 33 (permalink) Old 07-18-2020, 08:11 AM
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Quote: Originally Posted by Hueristic View Post
So let me understand this, RISCV Vector extension > AVX-512 but Intel doesn't own RISCV Vector extension so they are pushing AVX-512 instead?

Sounds about right.



https://youtu.be/9e9LCYt3hoc
AVX-512 is fine. Creating new extensions is fine, even if there might be something better out currently. Advertising AVX-512 and then deliberately obfuscating which products have and do not have those extensions, while also intentionally crippling the competitions performance in *"real world benchmarks"*, isn't so fine

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