CUDA: Difference between revisions

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'''Note that these examples haven't been updated in a while (as of 2022-03-12). May not be the best solution. A better resource is likely the packaging CUDA sample code [https://github.com/NixOS/nixpkgs/blob/634141959076a8ab69ca2cca0f266852256d79ee/pkgs/test/cuda/cuda-library-samples/generic.nix here].'''

There some possible ways to setup a development environment using CUDA on NixOS. This can accomplished in the following ways:

There are some possible ways to setup a development environment using CUDA on NixOS. This can be accomplished in the following ways:

* By making a FHS user env

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== Some things to keep in mind when setting up CUDA in NixOS ==

* Some GPUs, like Tesla K80, don't work with the latest drivers, so you must specify them in the option <code>hardware.nvidia.package</code> getting the value from your selected kernel, for example, <code>config.boot.kernelPackages.nvidia_x11_legacy470</code>. You can check which driver version your GPU supports by visiting the [https://www.nvidia.com/Download/index.aspx nvidia site] and checking the driver version.

* Even with the drivers correctly installed, some software, like Blender, may not see the CUDA GPU. Make sure your system configuration has the option <code>hardware.opengl.enable</code> enabled.

* By default, software packaged in source code form has CUDA support disabled, because of the unfree license. To solve this, you can enable builds with CUDA support with a nixpkgs wide configuration, or use binary packaged CUDA compatible software such as [https://github.com/edolstra/nix-warez/tree/master/blender blender-bin].

== See also ==

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* [https://discourse.nixos.org/t/cuda-setup-on-nixos/1118 CUDA setup on NixOS]

* [https://github.com/NixOS/nixpkgs/issues/131608 eGPU with nvidia-docker on intel-xserver]

* [https://discourse.nixos.org/t/cuda-in-nixos-on-gcp-for-a-tesla-k80/ Tesla K80 based CUDA setup with Terraform on GCP]