| 25 Aug 2025 |
 apyh | quick question for y'all - since 427a439 was merged, setuptools is now at v80, but from my understanding Torch only builds at <80... how does anything torch-related still work in nixpkgs, and how does cuda torch work at all? | 22:23:24 |
| 26 Aug 2025 |
|  Bryan Honof joined the room. | 11:45:34 |
| Bryan Honof | Hey all, I have created this tracking issue for bumping CUDA to version 13 https://github.com/NixOS/nixpkgs/issues/437087, not sure if that's the right way to do it. :) | 11:46:39 |
 connor (he/him) | I mean if it builds on master I don’t think the CUDA variant should fail. Idk what’s built currently through nix-community. | 16:51:05 |
| connor (he/him) | Will try to take a look later Bryan. Not sure how well the scripts work with 13. | 16:51:06 |
| apyh | i'm trying to build master but yaknow, gotta build the world, starting with llvm | 21:23:25 |
| 27 Aug 2025 |
 Kevin Mittman (UTC-7) | There are a fair amount of changes in 13.0, is there already a thread? | 01:45:33 |
 hexa | torch is cached, setuptools upgrades are rarely an issue | 02:11:52 |
| hexa | projects tend to pin it proactively and we tend to unpin it | 02:12:11 |
| apyh | In reply to @hexa:lossy.network
torch is cached, setuptools upgrades are rarely an issue im not super experienced with this - i ask because I'm trying to build torch 2.9 nightly myself, and i can't just bump all versions with the submodule unroll thing, because it fails to build with a newer setuptools. how is torch "cached" such that it doesn't need to build with the setuptools in nixpkgs? | 02:20:20 |
| hexa | https://hydra.nix-community.org/job/nixpkgs/cuda/python3Packages.torch.x86_64-linux | 02:20:54 |
| hexa | but yeah, that version is outdated | 02:21:14 |
| hexa | why newer versions wouldn't work with a newer setuptools but older versions do is beyond me 🙂 | 02:21:31 |
| apyh | yeah no i don't think torch 2.7.1 *should* build with newer setuptools.. | 02:57:01 |
| apyh | oh, i see, 2.7 doesn't have a max version on setuptools (https://github.com/pytorch/pytorch/blob/release/2.7/pyproject.toml) but 2.8 does (https://github.com/pytorch/pytorch/blob/release/2.8/pyproject.toml) | 02:58:29 |
| apyh | ig however it's built in nixpkgs can ignore that constraint since it somehow will still run setup.py | 02:58:57 |
| hexa | they're pinning to a version with distutils exposed, we can just provide distutils 🤷 | 03:25:52 |
| hexa | * they're apparently pinning to a version with distutils exposed, we can just provide distutils 🤷 | 03:26:05 |
| apyh | I'm doing all this because i really need a 2.9 nightly build but i get segfaults when doing multi-gpu NCCL stuff 😭 | 07:35:38 |
|  Bot_wxt1221 joined the room. | 08:45:43 |
| Bot_wxt1221 | Redacted or Malformed Event | 08:46:05 |
 Gaétan Lepage | I'm having issues with updating torch to 2.8.0
https://github.com/NixOS/nixpkgs/pull/431973
ERROR Missing dependencies:
setuptools<80.0,>=62.3.0
And I was not able to find any mentions of this constraint in the code base... | 08:46:49 |
| Bot_wxt1221 | Could we build onnxruntime related packages? | 08:48:29 |
| Gaétan Lepage | Are they currently broken? | 08:49:30 |
| Gaétan Lepage | I opened an update PR: https://github.com/NixOS/nixpkgs/pull/437307 | 08:49:40 |
| Bot_wxt1221 | No | 08:49:41 |
| Bot_wxt1221 | They are just mass cuda building | 08:49:51 |
| Bot_wxt1221 | like firefox and thunderbiar | 08:49:56 |
| Bot_wxt1221 | * | 08:50:00 |
| Bot_wxt1221 | * | 08:50:58 |
