126 lines
5.2 KiB
Nix
126 lines
5.2 KiB
Nix
# Notes:
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#
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# Silvan (Tweag) covered some things on recursive attribute sets in the Nix Hour:
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# https://www.youtube.com/watch?v=BgnUFtd1Ivs
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#
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# I (@connorbaker) highly recommend watching it.
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#
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# Most helpful comment regarding recursive attribute sets:
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#
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# https://github.com/NixOS/nixpkgs/pull/256324#issuecomment-1749935979
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#
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# To summarize:
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#
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# - `prev` should only be used to access attributes which are going to be overriden.
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# - `final` should only be used to access `callPackage` to build new packages.
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# - Attribute names should be computable without relying on `final`.
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# - Extensions should take arguments to build attribute names before relying on `final`.
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#
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# Silvan's recommendation then is to explicitly use `callPackage` to provide everything our
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# extensions need to compute the attribute names, without relying on `final`.
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#
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# I've (@connorbaker) attempted to do that, though I'm unsure of how this will interact with overrides.
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{
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callPackage,
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cudaVersion,
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lib,
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newScope,
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pkgs,
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config,
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}:
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let
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inherit (lib)
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attrsets
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customisation
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fixedPoints
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strings
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versions
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;
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# Backbone
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gpus = builtins.import ../development/cuda-modules/gpus.nix;
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nvccCompatibilities = builtins.import ../development/cuda-modules/nvcc-compatibilities.nix;
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flags = callPackage ../development/cuda-modules/flags.nix { inherit cudaVersion gpus; };
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passthruFunction = final: ({
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inherit cudaVersion lib pkgs;
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inherit gpus nvccCompatibilities flags;
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cudaMajorVersion = versions.major cudaVersion;
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cudaMajorMinorVersion = versions.majorMinor cudaVersion;
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cudaOlder = strings.versionOlder cudaVersion;
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cudaAtLeast = strings.versionAtLeast cudaVersion;
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# Maintain a reference to the final cudaPackages.
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# Without this, if we use `final.callPackage` and a package accepts `cudaPackages` as an
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# argument, it's provided with `cudaPackages` from the top-level scope, which is not what we
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# want. We want to provide the `cudaPackages` from the final scope -- that is, the *current*
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# scope. However, we also want to prevent `pkgs/top-level/release-attrpaths-superset.nix` from
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# recursing more than one level here.
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cudaPackages = final // {
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__attrsFailEvaluation = true;
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};
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# TODO(@connorbaker): `cudaFlags` is an alias for `flags` which should be removed in the future.
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cudaFlags = flags;
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# Exposed as cudaPackages.backendStdenv.
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# This is what nvcc uses as a backend,
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# and it has to be an officially supported one (e.g. gcc11 for cuda11).
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#
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# It, however, propagates current stdenv's libstdc++ to avoid "GLIBCXX_* not found errors"
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# when linked with other C++ libraries.
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# E.g. for cudaPackages_11_8 we use gcc11 with gcc12's libstdc++
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# Cf. https://github.com/NixOS/nixpkgs/pull/218265 for context
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backendStdenv = final.callPackage ../development/cuda-modules/backend-stdenv.nix { };
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# Loose packages
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# TODO: Move to aliases.nix once all Nixpkgs has migrated to the splayed CUDA packages
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cudatoolkit = final.callPackage ../development/cuda-modules/cudatoolkit/redist-wrapper.nix { };
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cudatoolkit-legacy-runfile = final.callPackage ../development/cuda-modules/cudatoolkit { };
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saxpy = final.callPackage ../development/cuda-modules/saxpy { };
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nccl = final.callPackage ../development/cuda-modules/nccl { };
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nccl-tests = final.callPackage ../development/cuda-modules/nccl-tests { };
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writeGpuTestPython = final.callPackage ../development/cuda-modules/write-gpu-test-python.nix { };
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});
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mkVersionedPackageName =
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name: version:
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strings.concatStringsSep "_" [
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name
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(strings.replaceStrings [ "." ] [ "_" ] (versions.majorMinor version))
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];
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composedExtension = fixedPoints.composeManyExtensions (
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[
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(import ../development/cuda-modules/setup-hooks/extension.nix)
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(callPackage ../development/cuda-modules/cuda/extension.nix { inherit cudaVersion; })
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(import ../development/cuda-modules/cuda/overrides.nix)
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(callPackage ../development/cuda-modules/generic-builders/multiplex.nix {
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inherit cudaVersion flags mkVersionedPackageName;
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pname = "cudnn";
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releasesModule = ../development/cuda-modules/cudnn/releases.nix;
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shimsFn = ../development/cuda-modules/cudnn/shims.nix;
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fixupFn = ../development/cuda-modules/cudnn/fixup.nix;
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})
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(callPackage ../development/cuda-modules/cutensor/extension.nix {
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inherit cudaVersion flags mkVersionedPackageName;
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})
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(callPackage ../development/cuda-modules/generic-builders/multiplex.nix {
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inherit cudaVersion flags mkVersionedPackageName;
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pname = "tensorrt";
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releasesModule = ../development/cuda-modules/tensorrt/releases.nix;
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shimsFn = ../development/cuda-modules/tensorrt/shims.nix;
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fixupFn = ../development/cuda-modules/tensorrt/fixup.nix;
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})
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(callPackage ../development/cuda-modules/cuda-samples/extension.nix { inherit cudaVersion; })
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(callPackage ../development/cuda-modules/cuda-library-samples/extension.nix { })
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]
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++ lib.optionals config.allowAliases [ (import ../development/cuda-modules/aliases.nix) ]
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);
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cudaPackages = customisation.makeScope newScope (
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fixedPoints.extends composedExtension passthruFunction
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);
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in
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cudaPackages
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