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{ lib
, callPackage
, buildPythonPackage
, fetchFromGitHub
, addOpenGLRunpath
, pytestCheckHook
, pythonRelaxDepsHook
, pkgsTargetTarget
, cmake
, ninja
, pybind11
, gtest
, zlib
, ncurses
, libxml2
, lit
, filelock
, torchWithRocm
, python
, cudaPackages
}:
let
# A time may come we'll want to be cross-friendly
#
# Short explanation: we need pkgsTargetTarget, because we use string
# interpolation instead of buildInputs.
#
# Long explanation: OpenAI/triton downloads and vendors a copy of NVidia's
# ptxas compiler. We're not running this ptxas on the build machine, but on
# the user's machine, i.e. our Target platform. The second "Target" in
# pkgsTargetTarget maybe doesn't matter, because ptxas compiles programs to
# be executed on the GPU.
# Cf. https://nixos.org/manual/nixpkgs/unstable/#sec-cross-infra
ptxas = "${pkgsTargetTarget.cudaPackages.cuda_nvcc}/bin/ptxas"; # Make sure cudaPackages is the right version each update (See python/setup.py)
llvm = callPackage ./llvm.nix { }; # Use a custom llvm, see llvm.nix for details
in
buildPythonPackage rec {
pname = "triton";
version = "2.0.0";
format = "setuptools";
src = fetchFromGitHub {
owner = "openai";
repo = pname;
rev = "v${version}";
hash = "sha256-9GZzugab+Pdt74Dj6zjlEzjj4BcJ69rzMJmqcVMxsKU=";
};
patches = [
# TODO: there have been commits upstream aimed at removing the "torch"
# circular dependency, but the patches fail to apply on the release
# revision. Keeping the link for future reference
# Also cf. https://github.com/openai/triton/issues/1374
# (fetchpatch {
# url = "https://github.com/openai/triton/commit/fc7c0b0e437a191e421faa61494b2ff4870850f1.patch";
# hash = "sha256-f0shIqHJkVvuil2Yku7vuqWFn7VCRKFSFjYRlwx25ig=";
# })
];
nativeBuildInputs = [
pythonRelaxDepsHook
# pytestCheckHook # Requires torch (circular dependency) and probably needs GPUs:
cmake
ninja
# Note for future:
# These *probably* should go in depsTargetTarget
# ...but we cannot test cross right now anyway
# because we only support cudaPackages on x86_64-linux atm
lit
llvm
];
buildInputs = [
gtest
libxml2.dev
ncurses
pybind11
zlib
];
propagatedBuildInputs = [ filelock ];
postPatch = let
# Bash was getting weird without linting,
# but basically upstream contains [cc, ..., "-lcuda", ...]
# and we replace it with [..., "-lcuda", "-L/run/opengl-driver/lib", "-L$stubs", ...]
old = [ "-lcuda" ];
new = [ "-lcuda" "-L${addOpenGLRunpath.driverLink}" "-L${cudaPackages.cuda_cudart}/lib/stubs/" ];
quote = x: ''"${x}"'';
oldStr = lib.concatMapStringsSep ", " quote old;
newStr = lib.concatMapStringsSep ", " quote new;
in ''
# Use our `cmakeFlags` instead and avoid downloading dependencies
substituteInPlace python/setup.py \
--replace "= get_thirdparty_packages(triton_cache_path)" "= os.environ[\"cmakeFlags\"].split()"
# Already defined in llvm, when built with -DLLVM_INSTALL_UTILS
substituteInPlace bin/CMakeLists.txt \
--replace "add_subdirectory(FileCheck)" ""
# Use our linker flags
substituteInPlace python/triton/compiler.py \
--replace '${oldStr}' '${newStr}'
# Don't fetch googletest
substituteInPlace unittest/CMakeLists.txt \
--replace "include (\''${CMAKE_CURRENT_SOURCE_DIR}/googletest.cmake)" ""\
--replace "include(GoogleTest)" "find_package(GTest REQUIRED)"
'';
# Avoid GLIBCXX mismatch with other cuda-enabled python packages
preConfigure = ''
export CC=${cudaPackages.backendStdenv.cc}/bin/cc;
export CXX=${cudaPackages.backendStdenv.cc}/bin/c++;
# Upstream's setup.py tries to write cache somewhere in ~/
export HOME=$(mktemp -d)
# Upstream's github actions patch setup.cfg to write base-dir. May be redundant
echo "
[build_ext]
base-dir=$PWD" >> python/setup.cfg
# The rest (including buildPhase) is relative to ./python/
cd python
# Work around download_and_copy_ptxas()
mkdir -p $PWD/triton/third_party/cuda/bin
ln -s ${ptxas} $PWD/triton/third_party/cuda/bin
'';
# CMake is run by setup.py instead
dontUseCmakeConfigure = true;
# Setuptools (?) strips runpath and +x flags. Let's just restore the symlink
postFixup = ''
rm -f $out/${python.sitePackages}/triton/third_party/cuda/bin/ptxas
ln -s ${ptxas} $out/${python.sitePackages}/triton/third_party/cuda/bin/ptxas
'';
checkInputs = [ cmake ]; # ctest
dontUseSetuptoolsCheck = true;
preCheck = ''
# build/temp* refers to build_ext.build_temp (looked up in the build logs)
(cd /build/source/python/build/temp* ; ctest)
# For pytestCheckHook
cd test/unit
'';
# Circular dependency on torch
# pythonImportsCheck = [
# "triton"
# "triton.language"
# ];
# Ultimately, torch is our test suite:
passthru.tests = { inherit torchWithRocm; };
pythonRemoveDeps = [
# Circular dependency, cf. https://github.com/openai/triton/issues/1374
"torch"
# CLI tools without dist-info
"cmake"
"lit"
];
meta = with lib; {
description = "Language and compiler for writing highly efficient custom Deep-Learning primitives";
homepage = "https://github.com/openai/triton";
platforms = lib.platforms.unix;
license = licenses.mit;
maintainers = with maintainers; [ SomeoneSerge Madouura ];
};
}
|