HNHacker News
TopNewBestAskShowJobs

luyu_wu

625 karma · joined September 28, 2023

high school student! Do a lot of physics in my spare time and take part in some fun contests like IYPT

Self-learning a lot of computer architecture IC design and fabrication

submissionscomments
luyu_wu··on DeepSeek V4 Flash 0731
It is wild that this a log scale of cost to me!
luyu_wu··on DeepSeek v4
For those who didn't check the page yet, it just links to the API docs being updated with the upcoming models, not the actual model release.
luyu_wu··on Framework Laptop 13 Pro
The iGP can access shared memory the same as with any modern system. I'm confused where you got this idea from.
luyu_wu··on Framework Laptop 13 Pro
Keep in mind the Ultra 300 chips also only have recent support in the kernel. The battery life likely isn't great for now (as with previous gen Intels right after release). It makes sense to me that for now the benchmarks would be Windows specific.
luyu_wu··on Qwen3.6-35B-A3B on my laptop drew me a better pelican than Claude Opus 4.7
Consider reading the article, which addresses all of the points you raise.

It's directly stated in the post that the entire test is meant to be humorous, not taken seriously, only that is has vaguely followed model performance to date. The author also writes that this new result shows that trend has broken..

luyu_wu··on Just 'English with Hanzi'
This article seems overly critical trying to impose a stance. I have never heard anyone say "因为雨下得很大,所以我决定不去了".

> The Sausage Sentence: English stacks relative clauses. Modern Chinese attempts to shove that complexity into a single pre-noun modifier using de (的), creating bloated, breathless sentences that tax the memory.

This is given without any evidence. "Creating bloated, breathless sentences that tax the memory" sounds like something Claude might write. IMO, 的 is far from as negative as the author (or AI) portrays it; arguably better than the multitude of English synonyms (his, her, theirs, its).

luyu_wu··on Show HN: A game where you build a GPU
It's likely you are pulling one to ground somehow. That was a common bug I faced.
luyu_wu··on RISC-V Is Sloooow
If I remember correctly,it was taped out by some company as some embedded core in a GPU?

I guess that may be the true use case for 'Open-Source' cores.

That being said, the advertised SPEC2007 scores are close to a M1 in IPC.

luyu_wu··on FrameBook
For people curious, it looks like it is MyDockFinder. https://store.steampowered.com/app/1787090/MyDockFinder/

I previously had a pretty good experience with it before moving to Linux.

luyu_wu··on The path to ubiquitous AI (17k tokens/sec)
I think this is quite interesting for local AI applications. As this technology basically scales with parameter size, if there could be some ASIC for a QWen 0.5B or Google 0.3B model thrown onto a laptop motherboard it'd be very interesting.

Obviously not for any hard applications, but for significantly better autocorrect, local next word predictions, file indexing (tagging I suppose).

The efficiency of such a small model should theoretically be great!

luyu_wu··on The state of Linux music players in 2026
Quick shoutout to Fooyin (https://github.com/fooyin/fooyin) which is a customizeable and very performant music player. Built on QtWidgets, so it's very snappy and themeable.
luyu_wu··on Long live American Science and Surplus
From what I know it still exists further out of the city. I have a friend who picked up quite large amount of scientific equipment. Might be a similar store with a different name though.
luyu_wu··on The Windows Subsystem for Linux is now open source
If you can GPU passthrough (it's quite simple to set up), this is not a large issue. You're right that Linux is sorely lacking in native creative software though!
luyu_wu··on Coding without a laptop: Two weeks with AR glasses and Linux on Android
These displays in the glasses are significantly smaller than even your Apple Watch though (0.58" or so I believe). Essentially the displays they're using are the same ones found in DSLR viewfinders. There should be higher resolution options, but I suspect the resolution limiter is the optics not the pixel size (just a suspicion).
luyu_wu··on Zhaoxin's KX-7000
Absolutely a lomg way to go.

Interestingly, the chip is rated to run at DDR4-3200 or DDR5, so it's strange C&C got half that.

The power issues are likely from by modern standards pre-historical clocking behavior (single P-state to my understanding)!

luyu_wu··on Fundamental flaws of SIMD ISAs (2021)
Low power RISC cores (both ARM and RISC-V) are typically in-order actually!

But any core I can think of as 'high-performance' is OOO.

luyu_wu··on I ditched my laptop for a pocketable mini PC and a pair of AR glasses
I saw a video recently advocating for this exact use case of said PC. That would make it truly pocketable.

It is in Chinese however!

https://b23.tv/RxSHAhD

luyu_wu··on FBI raids home of prominent computer scientist who has gone incommunicado
It's not easy to leave a tenured position you worked half your life to get to I suppose...
luyu_wu··on 63 Chinese Cuisines: The Complete Guide (2024)
Really in-depth and great article!

As with some other commentors, I was surprised to not see a lot of dishes that I thought were staples, and quite a few were under different names.

Nonetheless, really amazing---and made me quite hungry at well-past midnight!

luyu_wu··on DC-ROMA RISC-V AI PC, RISC-V Mainboard II for Framework Laptop 13
Heh, I just came from Reddit where I saw your post, and was about to update my comment.

Yeah, it seemed strange since to my knowledge no out-of-order vector RISC-V chip exists at the moment.

Interesting, hopefully DC can fix their advertising/clarify a bit more!

luyu_wu··on DC-ROMA RISC-V AI PC, RISC-V Mainboard II for Framework Laptop 13
Was really surprised to see this!

Especially a vector-instruction compatible AND out-of-order processor. Does anyone have any idea exactly what chip it uses?

Related news article: https://www.tomshardware.com/laptops/risc-v-mini-ai-pc-that-...

Edit: TomsHardware guesses that it is a EsWin EIC7702X!

luyu_wu··on European Parliament removes curbs on lawmaker meetings with China
I've seen you far too often with a strongly anti-China viewpoint on HN posts to take your points seriously at this point...
luyu_wu··on Watch R1 "think" with animated chains of thought
It's a cute little project, arguably far more interesting than the political flame wars that make front page.
luyu_wu··on XiangShan – open-source high performance RISC-V processor
Here is a commercial product using the older 'Nanhu' architecture by XiangShan. Doesn't seem to be released yet, but interesting nonetheless!

https://milkv.io/ja/ruyibook

luyu_wu··on XiangShan – Open-source high performance RISC-V processor
I posted a link to this project a few weeks ago as well! It's really interesting to see an academic project like this one.

For people interested, there's bi-weekly blogs (some in English) linked here: https://docs.xiangshan.cc/zh-cn/latest/blog/

luyu_wu··on DeepComputing: Early Access Program for RISC-V Mainboard for Framework Laptop 13
Took me a while to figure out that the actual pricing was $200 USD for a mainboard (you have to untick value-added services).

Definitely not the best pricing, but also not completely bad considering you get a 64GB microSD and case alongside?

Looking forwards to the next-gen mainboard they hint at in the "value-added package" as the JH7110 really is quite a weak chip (even by RISC-V standards)...

luyu_wu··on The phone ban has had a big impact on school work
There've been a lot of studies and meta studies on correlation between cellphone usage and academic performance. IIRC the Pearson correlation coefficient for that has always been hilariously low. Something like -0.1 to -0.2.

The argument these days is more about "distraction" caused by cellphone usage instead of something quantitative.

luyu_wu··on Building an open-source full-frame CCD camera PART II (2024) [video]
Just watched this video, it's really amazing what Wenting does! Have been a big fan of his for a long time.

DSLR cameras are one of those places where there just doesn't seem to be much DIY activity, so I'm especially excited seeing it here!

luyu_wu··on AMD Unveils Its First Small Language Model AMD-135M
The section on speculative execution is interesting. "This approach allows each forward pass to generate multiple tokens without compromising performance, thereby significantly reducing memory access consumption, and enabling several orders of magnitude speed improvements."

Does anyone know if the "several orders of magnitude speed improvement" is accurate? I'm doubtful.

Very interesting though! I'll be playing around with this on the weekend!

luyu_wu··on AMD deprioritizing flagship gaming GPUs: Jack Hyunh on New Strategy vs. Nvidia
Because you won't be gaming at all on a Mac? Surely this is satire.
Page 1 of 6Next →