| 26 Sep 2025 |
 Lun | #ROCm:nixos.org | 19:17:23 |
| 28 Sep 2025 |
|  Mir changed their display name from Gabriela Noriega to Mir. | 18:56:06 |
| 29 Sep 2025 |
 Winter | so i've learned 🫠| 15:18:02 |
| 30 Sep 2025 |
|  Zhaofeng Li joined the room. | 00:30:38 |
 connor (burnt/out) (UTC-8) | If anyone has stuff they use to verify or test releases, give it a try with https://github.com/NixOS/nixpkgs/pull/437723, it’s nearing ready for review | 05:01:50 |
| connor (burnt/out) (UTC-8) | Also can someone explain to me how the regexes for nixpkgs-review are supposed to work? I don't like rebuilding rocmPackages.aotriton and -P '*.aotriton.*' didn't match it for some reason. | 05:25:18 |
| Winter | are you sure it’s based on the attrpath? | 05:26:58 |
| Winter | tbh it would be weird for it not to be, nvm | 05:27:10 |
| connor (burnt/out) (UTC-8) | * Also can someone explain to me how the regexes for nixpkgs-review are supposed to work? I don't like rebuilding rocmPackages.aotriton and -P '.*aotriton.*' didn't match it for some reason.
EDIT: typo in regex name, I meant '.*aotriton.*' not `'.aotriton.' | 05:29:19 |
| connor (burnt/out) (UTC-8) | * Also can someone explain to me how the regexes for nixpkgs-review are supposed to work? I don't like rebuilding rocmPackages.aotriton and -P '.*aotriton.*' didn't match it for some reason.
EDIT: typo in regex name, I meant '.*aotriton.*' not '*.aotriton.*' | 05:29:49 |
| connor (burnt/out) (UTC-8) | Unrelated: https://github.com/NixOS/nixpkgs/pull/444123 was merged so there should be a nice closure size reduction coming for CUDA builds of OpenCV | 05:34:30 |
| Winter | (sorry for not having a more useful answer, if nobody gives one by the morning i’ll crack out the source and look lol) | 05:38:38 |
 SomeoneSerge (back on matrix) | Gaétan Lepage: wdyt throwing hydra at it? | 08:12:14 |
| SomeoneSerge (back on matrix) | * Gaétan Lepage: wdyt throwing hydra at it? I can edit the input, if that's ok | 08:36:55 |
 Gaétan Lepage | Sure, let's go for it. | 11:24:17 |
| SomeoneSerge (back on matrix) | connor (he/him) (UTC-7): https://hydra.nixos-cuda.org/eval/44 | 12:24:07 |
| connor (burnt/out) (UTC-8) | I'm a dummy, the option I wanted was one more down and doesn't have a short flag:
-P, --skip-package SKIP_PACKAGE
Packages to not build (can be passed multiple times)
--skip-package-regex SKIP_PACKAGE_REGEX
Regular expression that package attributes have not to match (can be passed multiple times)
| 12:43:21 |
| Winter | 2025-09-30 15:11:37.818161: W external/local_xla/xla/service/gpu/llvm_gpu_backend/default/nvptx_libdevice_path.cc:40] Can't find libdevice directory ${CUDA_DIR}/nvvm/libdevice. This may result in compilation or runtime failures, if the program we try to run uses routines from libdevice.
Searched for CUDA in the following directories:
./cuda_sdk_lib
...
/usr/local/cuda
/opt/cuda
/nix/store/d2b95k4ysi7822hnxq72np5vvfq7wbbp-python3.12-tensorflow-gpu-2.19.0/lib/python3.12/site-packages/tensorflow/../nvidia/cuda_nvcc
/nix/store/d2b95k4ysi7822hnxq72np5vvfq7wbbp-python3.12-tensorflow-gpu-2.19.0/lib/python3.12/site-packages/tensorflow/../../nvidia/cuda_nvcc
/nix/store/d2b95k4ysi7822hnxq72np5vvfq7wbbp-python3.12-tensorflow-gpu-2.19.0/lib/python3.12/site-packages/tensorflow/cuda
/nix/store/d2b95k4ysi7822hnxq72np5vvfq7wbbp-python3.12-tensorflow-gpu-2.19.0/lib/python3.12/site-packages/tensorflow/../../../..
/nix/store/d2b95k4ysi7822hnxq72np5vvfq7wbbp-python3.12-tensorflow-gpu-2.19.0/lib/python3.12/site-packages/tensorflow/../../../../..
anyone ever see smth like this before? | 19:14:29 |
| Winter | grepped around existing issues/prs a bit but no dice | 19:14:57 |
| 1 Oct 2025 |
| connor (burnt/out) (UTC-8) | nvvm is a subdirectory of cuda_nvcc pre-CUDA 13.0; I don’t remember which output it’s in though. Seems like the error is mostly about being unable to find that. | 01:03:41 |
| SomeoneSerge (back on matrix) | I think we put some config next to bin/nvcc that points at the correct libdevice location? Used to be in the overrides | 15:46:38 |
 Kevin Mittman (EOY sleep) | In CUDA 13, there was a split from cuda_nvcc to cuda_crt, libnvvm, and libnvptxcompiler components | 15:47:11 |
| Kevin Mittman (EOY sleep) changed their display name from Kevin Mittman (UTC+9) to Kevin Mittman (UTC-7). | 15:48:07 |
|  @magic_rb:matrix.redalder.org left the room. | 18:23:33 |
| Winter | this is just using pythonPackages.tensorflow w/ config.cudaSupport on 25.05 -- so that's CUDA 12, right? | 19:12:26 |
| Winter | dunno why this would be sad then | 19:12:38 |
| SomeoneSerge (back on matrix) | At what stage do you get that error? | 19:20:29 |
| Winter | runtime, after i've successfully imported tf | 20:09:22 |
| Winter | * runtime, after i've successfully imported tf -- i then get some JIT compilation error | 20:15:31 |
| Winter | seems like XLA_FLAGS may be my friend here | 20:16:43 |
