I think one day old accounts should be banned in TIL... It's clearly a karma farmer who is reposting stuff they know we like to hear.
this post was submitted on 24 Nov 2025
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Meh, karma is utterly irrelevant anyway
While I agree, they're doing it to make the account look legitimate for later use.
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☑ Linux.
☑ Supercomputers.
☑ Wikipedia link.
I feel seen.
Its why lemmy only shows posts and comments and not karma unlike Piefed. Karma is irrelevant when it can be easily botted and farmed now.
I think they do this to make accounts look legit when they are astroturfing later.
Wait it’s all Linux? 🔫 Always has been…
I once worked on a supercomputer in the olden times - this was before Linux. You basically wrote your calculation application on a front-end system with a cross-compiler. It was then transferred to the target machines' RAM and ran there. Your application was the only thing running on that machine. No OS, no drivers, no interrupts (at least not that I knew of). Just your application directly on the hardware. Once your program was finished, the RAM was read back, and you could analyze the dump to extract your results.
OG
No it's not, other Unix were on the list until 2017, there was even some Windows and macos for a time.
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did you think they ran windows server?
I personally thought that they ran some kind of unique fully custom OS
At least the top 10
Well you're not half wrong, at least the LUMI supercomputer, current nr. 9, runs Cray SUSE Linux Enterprise Server with minimal kernel daemons to reduce OS jitter on the compute nodes.
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no link to supercomputer list
They don't actually list OS there, but you can assume it's Linux. Lots of R&D has been done to get Linux to run well on supercomputers, it'd be cost prohibitive to try some other OS.
Long time now. Linux runs almost on every device, not just computers and phones.
I think they are surprised that there aren't any other bespoke or legacy or somewhat exotic OSes being used for any of them. Or maybe BSD or something.
The hardware is generally more mundane on that front, and even the 'exotic' ones are most readily accommodated by Linux (almost all x86 based, with a handful of POWER, ARM, and one that is allegedly DEC Alpha derived).
Generally speaking, a Top500 is a bunch of x86 servers usually nowadays with some GPUs in them connected by ethernet or infiniband.
Well yeah, if you have custom or exotic hardware you either customize an existing OS or write one from scratch. First option is much more sensible.
"Custom" and "Exotic" is a thing of the past. Been there, used that. It didn't have Linux, either.
Nowadays, it's more or less stock PCs (with high-end specs for CPU, RAM, GPU, etc), but nothing that would not run a common OS. They would probably even run Windows.
What it makes special is clustering.
You are right, and yes, they could run Windows, but it'd be pretty silly.
All the applications they run were written with a pure POSIX mindset, the jobs are run headless, and the legacy of much of the application code dates back to before even Windows NT was a thing.
In the late 2000s, Microsoft actually made a concerted push to try to get into the market, and it was just a laughable failure (they brought nothing to the table, had reduced ecosystem compatibility, and tried to charge more all in the process.
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It is said, that once you install windows on them, you would finally be able to use Internet Explorer!
Well they're not gonna use Windows
Imagine a Beowulf cluster of them!
Well shit now I want to know if quantum computers have operating systems..
And it looks like as of earlier this year the answer to that.. is yes. Special ones. Well, special one so far.
Quantum internet seems like a really bad idea, though, if the regular internet is any indication..
It's not exactly the quantum computers having an OS. Like with supercomputers back in my time, there are more or less normal computers running a more or less normal OS, which has the computational engine as a kind of device. You create and compile your "application" on that host processor, and load the "binary" onto the quantum device and execute it.
Linux is the liberator.
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