Monday, September 27
Daily News Stuff 27 September 2021
Vtubers Channeling Donald Trump Edition
Vtubers Channeling Donald Trump Edition
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- Chipmakers to carmakers: Get out of the Stone Age. (Fortune)
Carmakers to chipmakers: Your old chips actually fucking worked. Well, not worked as such, but failed in documented ways. It takes years to validate a new design, and not taking the time to do that validation could get people killed.
- Why is Elizabeth Holmes facing criminal charges when other tech CEOs aren't? It's because she's a wxmxn, isn't it? (NPR)
Because she's a wxmxn who engaged in fraud that could have killed people, yes.
Tech News
- A review of AMD's "new" 4700S CPU. (Tom's Hardware)
This is actually a a broken PlayStation 5 chip with the graphics cores disabled. It has up to 16GB of soldered-in GDDR6 memory - much faster than DDR4 - but the PlayStation was never designed to support a separate GPU so it only has 4 lanes of PCIe 2.0, which is kind of crap.
It's an adequate desktop CPU but useless for gaming. But if the price is right and you're not planning to play games it might work fine.
- AMD hit 16% market share on server CPU sales in the last quarter. (WCCFTech)
Up from basically 0% five years ago.
- Forget machine learning, return to inverse FFT. (Revue)
A simpler approach to eliminating Moiré patterns, and one that actually works.
- A raytraced Minecraft clone running on a budget FPGA. (GitHub)
Pretty basic but kind of neat. It's a 16-bit CPU running at 32MHz, but has hardware designed to run the game's graphics and physics.
Disclaimer: Not the turtle!
Posted by: Pixy Misa at
07:01 PM
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1
I thought everyone would have heard of the FFT, and the IFFT. My understanding is that those are undergraduate Electrical Engineering, because they are so basic and fundamental. So, I initially thought that this would be an early sign of the ML hype train coming to an end.
Posted by: PatBuckman at Monday, September 27 2021 11:10 PM (r9O5h)
2
New things are always better. Always.
Posted by: normal at Tuesday, September 28 2021 12:56 AM (LADmw)
3
The FFT, as an algorithm, sort of weirds me out. It does something that by rights shouldn't be possible in less than O(N^2). Because it apparently is possible, many other things that by rights shouldn't be possible in less than O(N^2) (arbitrary sequence multiplication, types of kernel convolution, etc) are suddenly O(Nlog(N)).
I really need to understand what the hell is going on in there someday. Geometrically - because geometry is where some of the weirdness that it causes is.
I really need to understand what the hell is going on in there someday. Geometrically - because geometry is where some of the weirdness that it causes is.
Posted by: MadRocketSci at Tuesday, September 28 2021 04:35 AM (hRoyQ)
4
One scientist that I used to work with used automotive op-amps and ADCs for electronics for an extremely EM-noisy experiment. I think he went for them because they are designed to handle a lot of noise: Noise in the power lines, inductive kick from motors, etc.
Sometimes you don't want the smallest transistors - sometimes you want them to handle some abuse.
Sometimes you don't want the smallest transistors - sometimes you want them to handle some abuse.
Posted by: MadRocketSci at Tuesday, September 28 2021 05:13 AM (hRoyQ)
5
In 40+ years of screwing around with automobiles, the only transistorized bits that ever worked well were the old GM HEI systems. But then, I sort of have a fondness for mechanical injection diesels, manual transmissions, and a complete lack of luxury.
Posted by: normal at Tuesday, September 28 2021 06:35 AM (obo9H)
6
Automotive is already doing too much of Big Tech's bidding. The legislative fiat pushing so much automation and geegaws on vehicles is a crock.
Posted by: PatBuckman at Tuesday, September 28 2021 09:35 AM (r9O5h)
7
In fairness to the defenders of Holmes, fraud that could kill people has also been committed by Dorsey, Zuckerberg, etc., with their information warfare on behalf of covid alarmism, electoral fraud, and the PRC government.
Posted by: PatBuckman at Tuesday, September 28 2021 11:46 AM (r9O5h)
8
True, but they left a couple of layers of indirection as a shield.
Posted by: Pixy Misa at Tuesday, September 28 2021 02:54 PM (PiXy!)
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