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NixOS CUDA

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CUDA packages maintenance and support in nixpkgs | https://github.com/orgs/NixOS/projects/27/ | https://nixos.org/manual/nixpkgs/unstable/#cuda58 Servers

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25 Sep 2025
@connorbaker:matrix.orgconnor (burnt/out) (UTC-8)To clarify, are you building PyTorch and Triton with Nix and producing a container, or is this something else? I’d also like to see a reproducer of you have one handy15:07:20
@connorbaker:matrix.orgconnor (burnt/out) (UTC-8)here be the path to (more) madness15:08:12
@apyh:matrix.orgapyh
In reply to @connorbaker:matrix.org
To clarify, are you building PyTorch and Triton with Nix and producing a container, or is this something else? I’d also like to see a reproducer of you have one handy
I'm building a container that includes PyTorch as a runtime dependency, and that PyTorch code calls torch.compile. Let me try to create a minimal repro :)
15:30:19
@apyh:matrix.orgapyhhttps://github.com/arilotter/nix-torch-compile a minimal repro !16:31:15
@apyh:matrix.orgapyhthis includes both things needed to run torch.compile inside a docker container 16:31:30
@hexa:lossy.networkhexa (UTC+1)flox stable nixpkgs is still stuck on aug 27th https://github.com/flox/nixpkgs16:50:13
@hexa:lossy.networkhexa (UTC+1)not sure who can effectively poke them16:50:23
@sporeray:matrix.orgRobbie Buxton @apyh pr is here https://github.com/NixOS/nixpkgs/pull/446105 17:36:25
@ss:someonex.netSomeoneSerge (back on matrix) Yes, I'm really embarrassed to say, but python3Packages.tensorflow has been defaulting to tensorlfow-bin for about a year now... and from what I've heard, even that is a PITA during upgrades 23:30:50
@ss:someonex.netSomeoneSerge (back on matrix)Soooo turns out flox-stable has nothing to do with nixos-stable23:31:25
@hexa:lossy.networkhexa (UTC+1)so what do they build for nixos-stable then?23:32:29
@ss:someonex.netSomeoneSerge (back on matrix)It's a tad confusing, but uhh they follow nixos-unstable, and when it passes the tests, they merge it into flox/staging, and when that passes more tests that's merged into flox/stable šŸ™ƒ23:32:45
@hexa:lossy.networkhexa (UTC+1)so no relationship to release-25.05 whatsoever23:33:03
@hexa:lossy.networkhexa (UTC+1)so stable users are fckd23:33:13
@ss:someonex.netSomeoneSerge (back on matrix)I asked them about building the release channels, didn't get a positive reaction yet23:33:26
@ss:someonex.netSomeoneSerge (back on matrix)I'll go ping one more time23:33:47
@hexa:lossy.networkhexa (UTC+1)zowoq restored the cuda-stable jobset until 25.05 eol23:33:49
@hexa:lossy.networkhexa (UTC+1)so there is some time23:33:58
@hexa:lossy.networkhexa (UTC+1)but boy, do I not like the new deal23:34:05
@ss:someonex.netSomeoneSerge (back on matrix)We'll fix it23:36:21
@ss:someonex.netSomeoneSerge (back on matrix)I heard it's all paracetomol-induced autism23:42:11
26 Sep 2025
@ysndr:matrix.orgysndr
In reply to @ss:someonex.net
It's a tad confusing, but uhh they follow nixos-unstable, and when it passes the tests, they merge it into flox/staging, and when that passes more tests that's merged into flox/stable šŸ™ƒ

A tad confusing indeed.

These stabilities are not describing the stability of the software that is contained, but the rate at which the software changes:

flox/unstable is rebased (almost) daily to the current nixos-unstable.
Every two weeks, that flox/staging is reset to that days unstable, every first Saturday of a month flox/stable is reset to the last staging. I.e. flox stable lags behind nixos-unstable by about 6weeks.

08:40:59
@ysndr:matrix.orgysndr
In reply to @ss:someonex.net
I asked them about building the release channels, didn't get a positive reaction yet
Nope no release channels currently :/
08:43:14

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