GPU access in the sandbox #256230
Merged
GPU access in the sandbox #256230
Commits on Jun 26, 2024
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nix-required-mounts: use wrappers instead of statically embedding con…
…fig into the script
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programs.nix-required-mounts: presets.cuda -> nvidia-gpu
This hopefully clarifies that the preset configures the hook to expose "nvidia devices", which includse both the userspace driver and the device nodes. The derivations still declare requiredSystemFeatures = [ "cuda" ] to explicitly indicate they need to use the CUDA functionality and expect a libcuda.so and a CUDA-capable device. Ideally, we'd also include the specific CUDA architectures (sm_86, etc) in feature names. Derivations that use a co-processor but do not care about the vendor or even the particular interface may ask for the more generic "opengl", "vulkan", or "gpu" features. It is then responsibility of the host declaring the support for this feature to ensure the drivers and hardware are appropriately set up.
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nix-required-mounts: restore the followSymlinks option
This way pkgs.nix-required-mounts is "correct" even before we override it in the NixOS module
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cudaPackages: move cuda tests from passthru.tests
Otherwise we crash Ofborg
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blender.gpuChecks: add unwrapped
An unwrapped check for `nix run`-ing on the host platform, instead of `nix build`-ing in the sandbox E.g.: ``` ❯ nix run -f ./. --arg config '{ cudaSupport = true; cudaCapabilities = [ "8.6" ]; cudaEnableForwardCompat = false; allowUnfree = true; }' -L blender.gpuChecks.cudaAvailable.unwrapped Blender 4.0.1 Read prefs: "/home/user/.config/blender/4.0/config/userpref.blend" CUDA is available Blender quit ❯ nix build -f ./. --arg config '{ cudaSupport = true; cudaCapabilities = [ "8.6" ]; cudaEnableForwardCompat = false; allowUnfree = true; }' -L blender.gpuChecks blender> Blender 4.0.1 blender> could not get a list of mounted file-systems blender> CUDA is available blender> Blender quit ``` -
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cudaPackages: updated convention for gpu/runtime checks
Runtime tests (derivations asking for a relaxed sandbox) are now expected at p.gpuCheck, p.gpuChecks.<name>, or at p.tests.<name>.gpuCheck.
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