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{
lib,
buildPythonPackage,
fetchFromGitHub,
cython,
setuptools,
mpi,
toPythonModule,
pytest,
mpiCheckPhaseHook,
mpi4py,
mpich,
}:
buildPythonPackage rec {
pname = "mpi4py";
version = "4.1.1";
pyproject = true;
src = fetchFromGitHub {
repo = "mpi4py";
owner = "mpi4py";
tag = version;
hash = "sha256-I7b4x3pxtfbmlbno5OIxo4HutRX3/RjdsoNtBRKgE5w=";
};
build-system = [
cython
setuptools
];
nativeBuildInputs = [
mpi
];
dependencies = [
# Use toPythonModule so that also the mpi executables will be propagated to
# generated Python environment.
(toPythonModule mpi)
];
pythonImportsCheck = [ "mpi4py" ];
nativeCheckInputs = [
pytest
mpiCheckPhaseHook
];
__darwinAllowLocalNetworking = true;
# skip spawn related tests for openmpi implemention
# see https://github.com/mpi4py/mpi4py/issues/545#issuecomment-2343011460
env.MPI4PY_TEST_SPAWN = if mpi.pname == "openmpi" then 0 else 1;
# follow upstream's checkPhase
# see https://github.com/mpi4py/mpi4py/blob/4.1.0/.github/workflows/ci-test.yml#L92-L95
checkPhase = ''
runHook preCheck
echo 'Testing mpi4py (np=1)'
mpiexec -n 1 python test/main.py -v
echo 'Testing mpi4py (np=2)'
mpiexec -n 2 python test/main.py -v -f -e spawn
runHook postCheck
'';
passthru = {
inherit mpi;
tests = {
mpich = mpi4py.override { mpi = mpich; };
};
};
meta = {
description = "Python bindings for the Message Passing Interface standard";
homepage = "https://github.com/mpi4py/mpi4py";
changelog = "https://github.com/mpi4py/mpi4py/blob/${src.tag}/CHANGES.rst";
license = lib.licenses.bsd2;
maintainers = with lib.maintainers; [ doronbehar ];
};
}
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