| 15 Jan 2023 |
|  discoshrimp joined the room. | 15:25:25 |
| 18 Jan 2023 |
|  Yuu Yin changed their display name from yuu to Yuu Yin. | 13:41:16 |
| 28 Jan 2023 |
 mcwitt | I recently opened PRs to add awswrangler (AWS SDK for pandas) and 2 dependencies to nixpkgs. Would appreciate reviews from anyone interested in these!
- https://github.com/NixOS/nixpkgs/pull/213055
- https://github.com/NixOS/nixpkgs/pull/213053
- https://github.com/NixOS/nixpkgs/pull/213054
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| 6 Feb 2023 |
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|  John ✒️ removed their profile picture. | 15:12:58 |
| John ✒️ set a profile picture. | 15:13:24 |
| 18 Feb 2023 |
| kadenwolff set a profile picture. | 07:58:30 |
| 21 Feb 2023 |
| John ✒️ | I wrote up a little blog post on how I finally managed to get Nix working on my university's HPC facility: https://www.jboy.space/blog/nix-on-hpc.html | 10:43:21 |
 Carl Thomé | Nice! I particularly enjoyed the framing of reproducible builds vs reproducible environments as:
"However, containers only “ensure reproducibility for computers … not for humans.” Code isn’t only or even primarily meant to communicate with computers, but with humans as well." | 21:26:29 |
| 22 Feb 2023 |
| John ✒️ | If you don't know it already, I highly recommend everything Konrad Hinsen writes about this kind of stuff. | 08:04:36 |
 josw | John ✒️: Great! Would you be willing to post this also on Discourse.nixos.org? | 08:21:54 |
| John ✒️ | good idea, I just (finally) signed up. I don't think I'm allowed to post links yet, but hopefully soon. | 15:45:27 |
| John ✒️ | https://discourse.nixos.org/t/using-the-nix-package-manager-on-an-hpc-cluster/25699?u=jboy | 20:13:13 |
| 23 Feb 2023 |
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| 28 Feb 2023 |
|  apache8080 joined the room. | 22:21:13 |
| apache8080 | is there a good nix shell example to get libtorch with cuda working? I have config.cudaSupport = true set in my nixpkgs and it seems like the libtorch being pulled in is the one with cuda support but when I run an example .cpp file it doesn't seem to find GPU support | 23:09:26 |
| apache8080 | Not sure if I'm missing some LD_LIBRARY_PATH stuff | 23:09:40 |
| apache8080 | https://pastebin.com/iBiJZBQR | 23:10:54 |
| apache8080 | here is the flake.nix I am using | 23:11:01 |
| apache8080 | https://github.com/metobom/tchrs-opencv-webcam-inference
this is really the thing I'm trying to get running, was using a simple cpp example as a sanity check for now | 23:14:03 |
 SomeoneSerge (hash-versioned python modules when) | Note: libtorch-bin just wraps a prebuilt libtorch, and patches it to fix dynamic linkage errors. Personally, I just use python3Packages.torch.dev (together with cuda-maintainers.cachix.org), but maybe libtorch-bin will work for you
That aside, the issue is likely in locating libcuda.so. Are you running NixOS?
| 23:17:52 |
| apache8080 | yeah I am running NixOS so libcuda.so should be in /run/opengl-drivers/lib | 23:18:56 |
| apache8080 | let me try using the python package | 23:19:03 |
| SomeoneSerge (hash-versioned python modules when) | In reply to @apache8080:matrix.org
yeah I am running NixOS so libcuda.so should be in /run/opengl-drivers/lib Does adding that to LD_LIBRARY_PATH help? | 23:20:04 |
| apache8080 | no difference | 23:21:46 |
| apache8080 | Could not run 'aten::empty_strided' with arguments from the 'CUDA' backend.
the rust program keeps failing with this which seems to indicate that it is not using the cuda version of libtorch
| 23:22:20 |
| apache8080 | going to use the python package next | 23:22:32 |
| apache8080 | hmm no luck with using the python package | 23:28:08 |
