depot/third_party/nixpkgs/pkgs/development/python-modules/cupy/default.nix
Default email 1be0098156 Project import generated by Copybara.
GitOrigin-RevId: 667e5581d16745bcda791300ae7e2d73f49fff25
2022-11-04 13:27:35 +01:00

74 lines
1.7 KiB
Nix

{ lib, buildPythonPackage
, fetchPypi, isPy3k, cython
, fastrlock, numpy, six, wheel, pytestCheckHook, mock, setuptools
, cudaPackages
, addOpenGLRunpath
}:
let
inherit (cudaPackages) cudatoolkit cudnn cutensor nccl;
in buildPythonPackage rec {
pname = "cupy";
version = "11.2.0";
disabled = !isPy3k;
src = fetchPypi {
inherit pname version;
sha256 = "sha256-wzNh8RejR6Y/aZbql0RtF/HAOPGh9TPlAkZCNQdpI+I=";
};
# See https://docs.cupy.dev/en/v10.2.0/reference/environment.html. Seting both
# CUPY_NUM_BUILD_JOBS and CUPY_NUM_NVCC_THREADS to NIX_BUILD_CORES results in
# a small amount of thrashing but it turns out there are a large number of
# very short builds and a few extremely long ones, so setting both ends up
# working nicely in practice.
preConfigure = ''
export CUDA_PATH=${cudatoolkit}
export CUPY_NUM_BUILD_JOBS="$NIX_BUILD_CORES"
export CUPY_NUM_NVCC_THREADS="$NIX_BUILD_CORES"
'';
nativeBuildInputs = [
addOpenGLRunpath
cython
];
LDFLAGS = "-L${cudatoolkit}/lib/stubs";
propagatedBuildInputs = [
cudatoolkit
cudnn
cutensor
nccl
fastrlock
numpy
six
setuptools
wheel
];
checkInputs = [
pytestCheckHook
mock
];
# Won't work with the GPU, whose drivers won't be accessible from the build
# sandbox
doCheck = false;
postFixup = ''
find $out -type f \( -name '*.so' -or -name '*.so.*' \) | while read lib; do
addOpenGLRunpath "$lib"
done
'';
enableParallelBuilding = true;
meta = with lib; {
description = "A NumPy-compatible matrix library accelerated by CUDA";
homepage = "https://cupy.chainer.org/";
license = licenses.mit;
platforms = [ "x86_64-linux" ];
maintainers = with maintainers; [ hyphon81 ];
};
}