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from typing import Any, Generator, Sequence
import pytest
from xgboost import testing as tm
@pytest.fixture(scope="session", autouse=True)
def setup_rmm_pool(request: Any, pytestconfig: pytest.Config) -> None:
tm.setup_rmm_pool(request, pytestconfig)
@pytest.fixture(scope="class")
def local_cuda_client(request: Any, pytestconfig: pytest.Config) -> Generator:
kwargs = {}
if hasattr(request, "param"):
kwargs.update(request.param)
if pytestconfig.getoption("--use-rmm-pool"):
if tm.no_rmm()["condition"]:
raise ImportError("The --use-rmm-pool option requires the RMM package")
import rmm
kwargs["rmm_pool_size"] = "2GB"
if tm.no_dask_cuda()["condition"]:
raise ImportError("The local_cuda_cluster fixture requires dask_cuda package")
from dask.distributed import Client
from dask_cuda import LocalCUDACluster
yield Client(LocalCUDACluster(**kwargs))
def pytest_addoption(parser: pytest.Parser) -> None:
parser.addoption(
"--use-rmm-pool", action="store_true", default=False, help="Use RMM pool"
)
def pytest_collection_modifyitems(config: pytest.Config, items: Sequence) -> None:
# mark dask tests as `mgpu`.
mgpu_mark = pytest.mark.mgpu
for item in items:
item.add_marker(mgpu_mark)
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