Btw, it seems that there is a mismatch in CUDA vs GCC version compatibility after all. In particular, for me

cudaPackages_11_2.backendStdenv.cc.version == "12.4.0"

and with that compiler, a couple of the samples in cuda-samples are failing to compile due to errors inside cuda_cccl headers. Here is a forum post discussing this exact error.

I wasn't able to find precise compatibility matrices for CUDA 12.1, but according to this stackoverflow answer, CUDA 12.1 supports GCC versions up to 12.2 which is lower than the current 12.4.0.

Minor versions don't work in pkgs/development/cuda-modules/nvcc-compatibilities.nix, but setting gccMaxMajorVersion = "11" for "12.1" I was able to successfully build the problematic samples that fail with GCC 12.4.0. So it looks like CUDA 12.1 doesn't fully support GCC 12.4 after all.

Thoughts?

Btw, it seems that there is a mismatch in CUDA vs GCC version compatibility after all. In particular, for me

cudaPackages_11_2.backendStdenv.cc.version == "12.4.0"

and with that compiler, a couple of the samples in cuda-samples are failing to compile due to errors inside cuda_cccl headers. Here is a forum post discussing this exact error.

I wasn't able to find precise compatibility matrices for CUDA 12.1, but according to this stackoverflow answer, CUDA 12.1 supports GCC versions up to 12.2 which is lower than the current 12.4.0.

Minor versions don't work in pkgs/development/cuda-modules/nvcc-compatibilities.nix, but setting gccMaxMajorVersion = "11" for CUDA "12.1" I was able to successfully build the problematic samples that fail with GCC 12.4.0. So it looks like CUDA 12.1 doesn't fully support GCC 12.4 after all.

Thoughts?

Hi all, I've been wanting to use compute-sanitizer from cudaPackages.cuda_sanitizer_api but noticed it's currently broken (reported here: https://github.com/NixOS/nixpkgs/issues/349426).

In the issue SomeoneSerge (UTC+U[-12,12]) gave a useful hint for how to get started fixing this. I've implemented the suggestion in https://github.com/NixOS/nixpkgs/pull/379695.

This does seem like a useful starting point: the compute-sanitizer binary is working and I've been successfully using it at work. Is anyone here available to review?

Gaétan Lepage: I've got the manifest for cusparseLT here: https://github.com/ConnorBaker/cuda-packages/blob/main/modules/redists/cusparselt/manifests/0.6.3.json

I think with that you should be able to construct a Nix expression which manually calls redist-builder (or whatever I called it upstream) with the proper arguments

Regarding scheduling the future meetings,

• we should probably aim to meet in 2-4 weeks to follow up on the patchelf exception and for a report on the ephemeral builders situation;
• we can probably first bring up the alignment questions with nix-community just in their chat, without video because async is faster;
• additionally, I think I should have hours this and next week to sort the backlog as mentioned in the notes; I think it'd still be useful, for onboarding new people, to do that with the audio and the screenshare, but it's not worth synchronizing people's schedules for this; maybe it'll be just a pop-in format?