78 lines
2.5 KiB
Nix
78 lines
2.5 KiB
Nix
{ config
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, lib
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, cudatoolkit
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}:
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let
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# Flags are determined based on your CUDA toolkit by default. You may benefit
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# from improved performance, reduced file size, or greater hardware suppport by
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# passing a configuration based on your specific GPU environment.
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#
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# config.cudaCapabilities: list of hardware generations to support (e.g., "8.0")
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# config.cudaForwardCompat: bool for compatibility with future GPU generations
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#
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# Please see the accompanying documentation or https://github.com/NixOS/nixpkgs/pull/205351
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defaultCudaCapabilities = rec {
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cuda9 = [
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"3.0"
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"3.5"
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"5.0"
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"5.2"
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"6.0"
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"6.1"
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"7.0"
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];
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cuda10 = cuda9 ++ [
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"7.5"
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];
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cuda11 = [
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"3.5"
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"5.0"
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"5.2"
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"6.0"
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"6.1"
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"7.0"
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"7.5"
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"8.0"
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"8.6"
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];
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};
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cudaMicroarchitectureNames = {
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"3" = "Kepler";
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"5" = "Maxwell";
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"6" = "Pascal";
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"7" = "Volta";
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"8" = "Ampere";
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"9" = "Hopper";
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};
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defaultCudaArchList = defaultCudaCapabilities."cuda${lib.versions.major cudatoolkit.version}";
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cudaRealCapabilities = config.cudaCapabilities or defaultCudaArchList;
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capabilitiesForward = "${lib.last cudaRealCapabilities}+PTX";
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dropDot = ver: builtins.replaceStrings ["."] [""] ver;
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archMapper = feat: map (ver: "${feat}_${dropDot ver}");
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gencodeMapper = feat: map (ver: "-gencode=arch=compute_${dropDot ver},code=${feat}_${dropDot ver}");
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cudaRealArchs = archMapper "sm" cudaRealCapabilities;
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cudaPTXArchs = archMapper "compute" cudaRealCapabilities;
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cudaArchs = cudaRealArchs ++ [ (lib.last cudaPTXArchs) ];
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cudaArchNames = lib.unique (map (v: cudaMicroarchitectureNames.${lib.versions.major v}) cudaRealCapabilities);
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cudaCapabilities = cudaRealCapabilities ++ lib.optional (config.cudaForwardCompat or true) capabilitiesForward;
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cudaGencode = gencodeMapper "sm" cudaRealCapabilities ++ lib.optionals (config.cudaForwardCompat or true) (gencodeMapper "compute" [ (lib.last cudaPTXArchs) ]);
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cudaCapabilitiesCommaString = lib.strings.concatStringsSep "," cudaCapabilities;
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cudaCapabilitiesSemiColonString = lib.strings.concatStringsSep ";" cudaCapabilities;
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cudaRealCapabilitiesCommaString = lib.strings.concatStringsSep "," cudaRealCapabilities;
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in
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{
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inherit cudaArchs cudaArchNames cudaCapabilities cudaCapabilitiesCommaString cudaCapabilitiesSemiColonString
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cudaRealCapabilities cudaRealCapabilitiesCommaString cudaGencode cudaRealArchs cudaPTXArchs;
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}
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