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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/#cuda57 Servers

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5 Nov 2025
@sporeray:matrix.orgRobbie BuxtonWas it any good!?03:33:41
@apyh:matrix.orgapyhnah03:33:44
@apyh:matrix.orgapyhlol03:33:45
@apyh:matrix.orgapyhcouple neat talks but nothing revolutionary 03:33:57
@sporeray:matrix.orgRobbie Buxton I will say tho @apyh for packaging I often disable high capacities until after I’ve got it working to make it quicker to interate. 03:38:39
@sporeray:matrix.orgRobbie BuxtonI’ve yet to hit a capability specific build issue touch wood03:38:54
@connorbaker:matrix.orgconnor (burnt/out) (UTC-8) Merged https://github.com/NixOS/nixpkgs/pull/458835
hexa (UTC+1) that should fix the Firefox breakage due to CUDA leaking into the default
15:33:50
@hexa:lossy.networkhexa (UTC+1)thannks15:36:24
@hexa:lossy.networkhexa (UTC+1)* thanks15:36:26
@glepage:matrix.orgGaétan Lepage I have the pleasure to tell you that our infra has churned through the new cuda-packages-v2 jobset for the first time!
https://hydra.nixos-cuda.org/jobset/cuda/cuda-packages-v2
23:31:59
6 Nov 2025
@connorbaker:matrix.orgconnor (burnt/out) (UTC-8)Composition of overlays is associative why does lib use foldr 🤨04:27:40
@connorbaker:matrix.orgconnor (burnt/out) (UTC-8) * 04:28:25
@daniel-fahey:matrix.orgDaniel Fahey vLLM devs want to use triton_kernels (a Python library that's in the Triton monorepo). What would be our advice to them re: "vendoring" (other than "don't")? https://github.com/vllm-project/vllm/issues/27672#issuecomment-3497537863 15:08:53
7 Nov 2025
@connorbaker:matrix.orgconnor (burnt/out) (UTC-8)so glad I spent several weeks writing a bunch of bash array utility functions months ago09:40:03
@daniel-fahey:matrix.orgDaniel Faheyhave you heard of python?09:40:40
@connorbaker:matrix.orgconnor (burnt/out) (UTC-8)was able to re-use stuff from https://github.com/connorbaker/cuda-packages and https://github.com/ConnorBaker/nixpkgs/tree/feat/arrayUtilities-remaining to make https://github.com/NixOS/nixpkgs/pull/45941609:41:10
@daniel-fahey:matrix.orgDaniel Fahey😜09:41:28
@connorbaker:matrix.orgconnor (burnt/out) (UTC-8)using python meaningfully for setup hooks is something I want to push further with the stdenv team but... there's a great deal of different ideas in terms of what that would look like09:43:05
@connorbaker:matrix.orgconnor (burnt/out) (UTC-8) some want to move away from shell (or to a different shell) for setup hooks, others want to enable more radical changes like the ability to use python for setup hooks or even to replace some or all of setup.sh 09:44:29
@daniel-fahey:matrix.orgDaniel FaheyI wrote this recently https://github.com/NixOS/nixpkgs/pull/448828/files#diff-e82c6e9710143cae7452bab94f76c5adedbfc093ca951aa0a0f634d661ef583309:44:46
@connorbaker:matrix.orgconnor (burnt/out) (UTC-8)there's been a big effort to get python3Minimal usable within the bootstrap iirc09:44:52
@connorbaker:matrix.orgconnor (burnt/out) (UTC-8)okay I need to sleep09:46:52
@daniel-fahey:matrix.orgDaniel Faheygn gg09:47:35
@connorbaker:matrix.orgconnor (burnt/out) (UTC-8) SomeoneSerge (back on matrix) Gaétan Lepage this is kind of what I mentioned in the weekly meeting about needing to remove the stubs from the runpath; it doesn't do everything but it's a start. For example, this should unbreak packages which link against stubs and don't use autoAddDriverRunpath --in that case the runpath wouldn't be prefixed by /run/opengl-driver/lib so the stubs would be discovered and loaded and runtime would fail. 09:48:48
@glepage:matrix.orgGaétan LepageOk neat!09:53:37
@daniel-fahey:matrix.orgDaniel FaheyReally, really high quality bash, fan of Wooledge I presume? And the integration with the Nix for the testing 👨‍🍳 😘, thanks for exposing me to this. I did a lot of bash in my old job inside Makefiles, looking at this has made me remember how much I love bash. Sorry for my tongue in cheek Python remark.11:01:25

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