CUDA initialization error in proxify_device_objects.py

[pentschev]

Latest nightly tests failed due to CUDA initialization error, which seems to be rooted at

dask-cuda/dask_cuda/proxify_device_objects.py

Line 92 in cd8a87d

import cudf._lib.table

. I believe what's happening is that this is an import in the global level where dask-cuda can't ensure the CUDA context has already been created, in turn leaving that task then to cuDF.

@madsbk could you check if it's possible to move that import from the global level to a local one, in such a way as to prevent cudf from ever being imported before dask-cuda has had a chance to initialize the CUDA context? I took a quick look but it seems that this is an indirect dependency and I wasn't sure how to fix it without risking breaking something else.