| 23 Aug 2024 |
 hexa | where are we with the binary caching situation? | 23:47:52 |
| hexa | me and my smol homeserver are deeply unhappy | 23:48:08 |
| 24 Aug 2024 |
| hexa | is nix-community's jobset going to stay a ci essentially? | 00:58:57 |
 connor (burnt/out) (UTC-8) | Actually haven’t been following so not sure what the consensus is there; likely they don’t have enough compute to act as a true CI, but maybe for scheduled job sets? | 05:15:37 |
| 25 Aug 2024 |
|  slaser joined the room. | 18:35:19 |
| 27 Aug 2024 |
|  @mat:matrix.matmoa.xyz joined the room. | 13:24:16 |
 Jonas Chevalier | In reply to @hexa:lossy.network
is nix-community's jobset going to stay a ci essentially? what else are you looking for, testing on PRs? | 16:20:38 |
| hexa | a binary cache | 16:20:58 |
| hexa | 
Download image.png | 16:21:41 |
| hexa | the rebuild of my homeserver on my homeserver (5600X) can't take all night and half the morning 🙂 | 16:21:54 |
| Jonas Chevalier | I should have said that Hydra.nix-community.org publishes to nix-community.cachix.org 🙃 | 16:22:00 |
| hexa | while all other machiens take less than 10 minutes | 16:22:01 |
 SomeoneSerge (back on matrix) | OH I thought that was implied | 16:22:40 |
| Jonas Chevalier | hexa (UTC+1): can you give us the new stats after you add that cache :) | 16:23:18 |
| hexa | sure | 16:23:24 |
| 28 Aug 2024 |
 @gmacon:matrix.org | I'm trying to build the Rust candle-kernels crate within Nix, and nvcc is complaining that gcc is too new. I have gcc 13.2.0 and nvcc version 12.2.140 from nixpkgs-24.05-darwin bb8bdb47b718645b2f198a6cf9dff98d967d0fd4.
/nix/store/r45hzi56bzljzfvh6rgdnjbisy9pxqnj-cuda-merged-12.2/include/crt/host_config.h:143:2: error: #error -- unsupported GNU version! gcc versions later than 12 are not supported! The nvcc flag '-allow-unsupported-compiler' can be used to override this version check; however, using an unsupported host compiler may cause compilation failure or incorrect run time execution. Use at your own risk.
| ^~~~~
thread 'main' panicked at /home/gmacon3/.cargo/registry/src/index.crates.io-6f17d22bba15001f/bindgen_cuda-0.1.5/src/lib.rs:391:13:
nvcc error while compiling "src/affine.cu":
# CLI "nvcc" "--gpu-architecture=sm_90" "--ptx" "--default-stream" "per-thread" "--output-directory" "$PWD/target/debug/build/candle-kernels-809f3e0b9ee8b48d/out" "-Isrc" "-I/nix/store/r45hzi56bzljzfvh6rgdnjbisy9pxqnj-cuda-merged-12.2/include" "src/affine.cu"
Have other folks seen this? What's the best approach to resolve this?
| 17:13:49 |
| @gmacon:matrix.org | In reply to @gmacon:matrix.org
I'm trying to build the Rust candle-kernels crate within Nix, and nvcc is complaining that gcc is too new. I have gcc 13.2.0 and nvcc version 12.2.140 from nixpkgs-24.05-darwin bb8bdb47b718645b2f198a6cf9dff98d967d0fd4.
/nix/store/r45hzi56bzljzfvh6rgdnjbisy9pxqnj-cuda-merged-12.2/include/crt/host_config.h:143:2: error: #error -- unsupported GNU version! gcc versions later than 12 are not supported! The nvcc flag '-allow-unsupported-compiler' can be used to override this version check; however, using an unsupported host compiler may cause compilation failure or incorrect run time execution. Use at your own risk.
| ^~~~~
thread 'main' panicked at /home/gmacon3/.cargo/registry/src/index.crates.io-6f17d22bba15001f/bindgen_cuda-0.1.5/src/lib.rs:391:13:
nvcc error while compiling "src/affine.cu":
# CLI "nvcc" "--gpu-architecture=sm_90" "--ptx" "--default-stream" "per-thread" "--output-directory" "$PWD/target/debug/build/candle-kernels-809f3e0b9ee8b48d/out" "-Isrc" "-I/nix/store/r45hzi56bzljzfvh6rgdnjbisy9pxqnj-cuda-merged-12.2/include" "src/affine.cu"
Have other folks seen this? What's the best approach to resolve this?
It turs out that Crane (which is the library I'm using to handle the Rust build) supports a stdenv argument to override the compilers used for the Rust build, so setting it to an older GCC worked. | 18:55:04 |
| SomeoneSerge (back on matrix) |
older gcc
Note that if you're building a shared library you're going to run into libc issues if you just use gcc12Stdenv. THat's why we have cudaPackages.backendStdenv | 21:48:12 |
| 29 Aug 2024 |
| @gmacon:matrix.org | In reply to @ss:someonex.net
older gcc
Note that if you're building a shared library you're going to run into libc issues if you just use gcc12Stdenv. THat's why we have cudaPackages.backendStdenv Since this is a Rust project, I'm not building any shared libraries, but this is good to know. Thanks! | 13:06:40 |
| SomeoneSerge (back on matrix) | In reply to @gmacon:matrix.org
Since this is a Rust project, I'm not building any shared libraries, but this is good to know. Thanks! (also relevant if you're loading other shared libraries, e.g. as plugins) | 13:10:42 |
| @gmacon:matrix.org | In reply to @ss:someonex.net
(also relevant if you're loading other shared libraries, e.g. as plugins) I went ahead and changed my derivations anyway, so I'm all set for everything :-) | 13:12:20 |
| hexa | In reply to @zimbatm:numtide.com
hexa (UTC+1): can you give us the new stats after you add that cache :) my infra runs on nixos-24.05 🙂 | 14:09:02 |
| Jonas Chevalier | right, we should probably also build 24.05. It shouldn't cost that much. | 14:12:24 |
| hexa | that would be super cool | 14:12:37 |
| 3 Sep 2024 |
| hexa | https://github.com/nix-community/infra/pull/1435 | 20:55:18 |
| hexa | not sure how useful release-cuda.nix is on 24.05, maybe SomeoneSerge (UTC+3) can speak to that? | 20:55:38 |
| hexa | https://hydra.nix-community.org/jobset/nixpkgs/cuda-stable | 21:35:16 |
| 4 Sep 2024 |
| connor (burnt/out) (UTC-8) | I’ll take a look at it later today as well | 17:40:12 |
| connor (burnt/out) (UTC-8) | (Assuming I remember and my plumbing is fixed by then otherwise all bets are off) | 17:40:28 |
| SomeoneSerge (back on matrix) changed their display name from SomeoneSerge (UTC+3) to SomeoneSerge (nix.camp). | 21:48:39 |
