llama.cpp/flake.nix

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{
inputs = {
nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
flake-utils.url = "github:numtide/flake-utils";
};
outputs = { self, nixpkgs, flake-utils }:
flake-utils.lib.eachDefaultSystem (system:
let
inherit (pkgs.stdenv) isAarch32 isAarch64 isDarwin;
buildInputs = with pkgs; [ openmpi ];
osSpecific = with pkgs; buildInputs ++
(
if isAarch64 && isDarwin then
with pkgs.darwin.apple_sdk_11_0.frameworks; [
Accelerate
MetalKit
MetalPerformanceShaders
MetalPerformanceShadersGraph
]
else if isAarch32 && isDarwin then
with pkgs.darwin.apple_sdk.frameworks; [
Accelerate
CoreGraphics
CoreVideo
]
else
with pkgs; [ openblas ]
);
pkgs = import nixpkgs { inherit system; };
nativeBuildInputs = with pkgs; [ cmake pkgconfig ];
llama-python =
pkgs.python3.withPackages (ps: with ps; [ numpy sentencepiece ]);
postPatch = ''
substituteInPlace ./ggml-metal.m \
--replace '[bundle pathForResource:@"ggml-metal" ofType:@"metal"];' "@\"$out/bin/ggml-metal.metal\";"
substituteInPlace ./*.py --replace '/usr/bin/env python' '${llama-python}/bin/python'
'';
postInstall = ''
mv $out/bin/main $out/bin/llama
mv $out/bin/server $out/bin/llama-server
'';
cmakeFlags = [ "-DLLAMA_BUILD_SERVER=ON" "-DLLAMA_MPI=ON" "-DBUILD_SHARED_LIBS=ON" "-DCMAKE_SKIP_BUILD_RPATH=ON" ];
in {
packages.default = pkgs.stdenv.mkDerivation {
name = "llama.cpp";
src = ./.;
postPatch = postPatch;
nativeBuildInputs = nativeBuildInputs;
buildInputs = osSpecific;
cmakeFlags = cmakeFlags
++ (if isAarch64 && isDarwin then [
"-DCMAKE_C_FLAGS=-D__ARM_FEATURE_DOTPROD=1"
"-DLLAMA_METAL=ON"
] else [
"-DLLAMA_BLAS=ON"
"-DLLAMA_BLAS_VENDOR=OpenBLAS"
]);
postInstall = postInstall;
meta.mainProgram = "llama";
};
packages.opencl = pkgs.stdenv.mkDerivation {
name = "llama.cpp";
src = ./.;
postPatch = postPatch;
nativeBuildInputs = nativeBuildInputs;
buildInputs = with pkgs; buildInputs ++ [ clblast ];
cmakeFlags = cmakeFlags ++ [
"-DLLAMA_CLBLAST=ON"
];
postInstall = postInstall;
meta.mainProgram = "llama";
};
apps.llama-server = {
type = "app";
program = "${self.packages.${system}.default}/bin/llama-server";
};
apps.llama-embedding = {
type = "app";
program = "${self.packages.${system}.default}/bin/embedding";
};
apps.llama = {
type = "app";
program = "${self.packages.${system}.default}/bin/llama";
};
apps.default = self.apps.${system}.llama;
devShells.default = pkgs.mkShell {
packages = nativeBuildInputs ++ osSpecific;
};
});
}