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We built another object storage

https://fractalbits.com/blog/why-we-built-another-object-storage/
60•fractalbits•2h ago•9 comments

Java FFM zero-copy transport using io_uring

https://www.mvp.express/
25•mands•5d ago•6 comments

How exchanges turn order books into distributed logs

https://quant.engineering/exchange-order-book-distributed-logs.html
48•rundef•5d ago•17 comments

macOS 26.2 enables fast AI clusters with RDMA over Thunderbolt

https://developer.apple.com/documentation/macos-release-notes/macos-26_2-release-notes#RDMA-over-...
467•guiand•18h ago•237 comments

AI is bringing old nuclear plants out of retirement

https://www.wbur.org/hereandnow/2025/12/09/nuclear-power-ai
32•geox•1h ago•24 comments

Sick of smart TVs? Here are your best options

https://arstechnica.com/gadgets/2025/12/the-ars-technica-guide-to-dumb-tvs/
433•fleahunter•1d ago•362 comments

Photographer built a medium-format rangefinder, and so can you

https://petapixel.com/2025/12/06/this-photographer-built-an-awesome-medium-format-rangefinder-and...
78•shinryuu•6d ago•9 comments

Apple has locked my Apple ID, and I have no recourse. A plea for help

https://hey.paris/posts/appleid/
865•parisidau•10h ago•445 comments

GNU Unifont

https://unifoundry.com/unifont/index.html
287•remywang•18h ago•68 comments

A 'toaster with a lens': The story behind the first handheld digital camera

https://www.bbc.com/future/article/20251205-how-the-handheld-digital-camera-was-born
42•selvan•5d ago•18 comments

Beautiful Abelian Sandpiles

https://eavan.blog/posts/beautiful-sandpiles.html
83•eavan0•3d ago•16 comments

Rats Play DOOM

https://ratsplaydoom.com/
332•ano-ther•18h ago•123 comments

Show HN: Tiny VM sandbox in C with apps in Rust, C and Zig

https://github.com/ringtailsoftware/uvm32
167•trj•17h ago•11 comments

OpenAI are quietly adopting skills, now available in ChatGPT and Codex CLI

https://simonwillison.net/2025/Dec/12/openai-skills/
481•simonw•15h ago•271 comments

Computer Animator and Amiga fanatic Dick Van Dyke turns 100

109•ggm•6h ago•23 comments

Formula One Handovers and Handovers From Surgery to Intensive Care (2008) [pdf]

https://gwern.net/doc/technology/2008-sower.pdf
82•bookofjoe•6d ago•33 comments

Show HN: I made a spreadsheet where formulas also update backwards

https://victorpoughon.github.io/bidicalc/
179•fouronnes3•1d ago•85 comments

Will West Coast Jazz Get Some Respect?

https://www.honest-broker.com/p/will-west-coast-jazz-finally-get
9•paulpauper•6d ago•2 comments

Freeing a Xiaomi humidifier from the cloud

https://0l.de/blog/2025/11/xiaomi-humidifier/
126•stv0g•1d ago•51 comments

Obscuring P2P Nodes with Dandelion

https://www.johndcook.com/blog/2025/12/08/dandelion/
57•ColinWright•4d ago•1 comments

Go is portable, until it isn't

https://simpleobservability.com/blog/go-portable-until-isnt
119•khazit•6d ago•101 comments

Ensuring a National Policy Framework for Artificial Intelligence

https://www.whitehouse.gov/presidential-actions/2025/12/eliminating-state-law-obstruction-of-nati...
169•andsoitis•1d ago•217 comments

Poor Johnny still won't encrypt

https://bfswa.substack.com/p/poor-johnny-still-wont-encrypt
52•zdw•10h ago•64 comments

YouTube's CEO limits his kids' social media use – other tech bosses do the same

https://www.cnbc.com/2025/12/13/youtubes-ceo-is-latest-tech-boss-limiting-his-kids-social-media-u...
83•pseudolus•3h ago•66 comments

Slax: Live Pocket Linux

https://www.slax.org/
41•Ulf950•5d ago•5 comments

50 years of proof assistants

https://lawrencecpaulson.github.io//2025/12/05/History_of_Proof_Assistants.html
107•baruchel•15h ago•16 comments

Gild Just One Lily

https://www.smashingmagazine.com/2025/04/gild-just-one-lily/
29•serialx•5d ago•5 comments

Capsudo: Rethinking sudo with object capabilities

https://ariadne.space/2025/12/12/rethinking-sudo-with-object-capabilities.html
74•fanf2•17h ago•44 comments

Google removes Sci-Hub domains from U.S. search results due to dated court order

https://torrentfreak.com/google-removes-sci-hub-domains-from-u-s-search-results-due-to-dated-cour...
193•t-3•11h ago•34 comments

String theory inspires a brilliant, baffling new math proof

https://www.quantamagazine.org/string-theory-inspires-a-brilliant-baffling-new-math-proof-20251212/
167•ArmageddonIt•22h ago•153 comments
Open in hackernews

Peeling the Covers Off Germany's Exascale "Jupiter" Supercomputer

https://www.nextplatform.com/2025/06/11/peeling-the-covers-off-germanys-exascale-jupiter-supercomputer/
46•rbanffy•6mo ago

Comments

theandrewbailey•6mo ago
Will Jupiter run... Jupyter?

I'll show myself out.

anher•6mo ago
It does already! (Signed up for this.)
SOLAR_FIELDS•6mo ago
Welcome :)
0x000xca0xfe•6mo ago
Interesting to see that the CPU tile on the GH200 is not smaller than the GPU.
supermatt•6mo ago
> speaks volumes about difficult it is to start from scratch to achieve chip independence for Europe

It’s tiring hearing this as if the US is any better on chip independence. Until VERY recently, both the US and Europe were limited to around 12nm domestically. Europe still has that capability, along with strong chip design companies, especially in automotive and industrial sectors. And nearly all modern US CPUs in mobile and embedded markets license Arm designs — a European (British) architecture.

filoleg•6mo ago
Why did you omit the rest of the sentence, which (imo) provides relevant context for your quote?

Here is the relevant context I was referring to:

> […] the fact that it is not using a custom CPU and XPU created by European companies, as was originally hoped, and is basically an Nvidia machine top to middle […] speaks volumes about difficult it is to start from scratch to achieve chip independence for Europe

The article isn’t arguing semantics, and your point regarding ARM and 12nm is valid. However, the bottom line of that specific sentence you partially quoted is that they were hoping to use a custom CPU+XPU created by European companies, but ended up going with NVidia (an American company) instead.

supermatt•6mo ago
Because none of the rest was relevant.

Here, i will isolate the specific piece:

> start from scratch

Europe isn’t “starting from scratch.” It already has 12nm-class fabs (just like the US did until very recently), designs its own chips, and developed the very architecture — ARM — that many other countries now use as the foundation for their processors.

filoleg•5mo ago
> Europe isn’t “starting from scratch.”It already has 12nm-class fabs (just like the US did until very recently), designs its own chips, and developed the very architecture — ARM.

Sure, but the way you put it makes the final outcome look even worse for Europe.

As you said, Europe already has 12nm-class fabs, designs its own chips, and yet they still went with NVidia.

If it was a choice between truly starting from scratch vs. going with NVidia, the decision to go with NVidia would’ve been more understandable. But given the context that they aren’t truly starting from scratch, their decision to go with NVidia just seems even more embarrassing.

supermatt•5mo ago
Clearly your intent is to be argumentative - but i'll bite:

They didn’t “go with nvidia”. Your ignorance is exactly why such a statement by the author is detrimental to the work done. The uninformed end up spreading misinformation.

The raw compute (the "booster") is only one part of the system. The rest - the cluster modules - are European-designed, including not just the SiPearl Rhea CPU (SiPearl, France), but also the system architecture and software stack (Jülich Supercomputing Centre, Germany), the interconnect (ParTec, Germany), and the cooling systems (Atos/Eviden, France). These cluster modules are integrated into the BullSequana XH3000 platform (Atos/Eviden, France). Fabrication is outsourced to TSMC (Taiwan), but the design remains fully European.

The fact is that the mission statement is to remain globally competitive in terms of computing power, and that means getting exascale as soon as possible. They aren’t going to wait for homegrown compute chips even if they were months away (which i doubt they will be).

By your logic all American supercomputers “went with Inria (France)”, because America is “starting from scratch” at writing software.. that they have software developers and chose to use European software is embarrassing.. see how stupid and ignorant such a statement is?

supermatt•5mo ago
Looking back again on the article, I can see why you are confused.

The author has outright fabricated this whole idea of chip sovereignty being a part of Jupiter. I have no idea where he (and therefore you) got this idea from, but its simply not true - and further points to him just making some excuse to euro-bash. It seems to be a sign of the times under the mad king’s reign. When facts don’t support the narrative, they get reshaped to suit the mood. This kind of editorialising, where political sentiment is passed off as technical insight, doesn’t just weaken the argument, it undermines trust in serious discourse.

FYI, the selection criteria only allocated 100 points of a total of 1100 (of which a minimum of 50 were required) to "Contribution to the objectives of the EuroHPC Joint Undertaking" (https://eurohpc-ju.europa.eu/about/discover-eurohpc-ju_en#mi...). i.e. Sovereignty was not a key objective. This is all public knowledge that you can easily find for yourself.

EDIT - link to the procurement doc: https://ec.europa.eu/info/funding-tenders/opportunities/port...