small fixes for cupy11

python-package/xgboost/dask.py

@@ -272,7 +272,7 @@ def concat(value: Any) -> Any:  # pylint: disable=too-many-return-statements
         from cudf import concat as CUDF_concat  # pylint: disable=import-error
 
         return CUDF_concat(value, axis=0)
-    if lazy_isinstance(value[0], "cupy._core.core", "ndarray"):
+    if lazy_isinstance(value[0], "cupy", "ndarray"):
         import cupy
 
         # pylint: disable=c-extension-no-member,no-member

python-package/xgboost/data.py

@@ -712,7 +712,6 @@ def _is_cupy_array(data) -> bool:
         for n in ("cupy.core.core", "cupy", "cupy._core.core")
     )
 
-
 def _transform_cupy_array(data):
     import cupy  # pylint: disable=import-error
     if not hasattr(data, '__cuda_array_interface__') and hasattr(

tests/python-gpu/test_from_cupy.py

@@ -220,4 +220,5 @@ def test_specified_device(self):
             np.float32, xgb.DeviceQuantileDMatrix, np.nan)
         with pytest.raises(xgb.core.XGBoostError):
             xgb.train({'tree_method': 'gpu_hist', 'gpu_id': 1},
+                      'fail_on_invalid_gpu_id': True},
                       dtrain, num_boost_round=10)