Test errors with cupy==13.4.1

[ev-br]

FAILED tests/test_common.py::test_asarray_copy[cupy] - Failed: DID NOT RAISE <class 'NotImplementedError'>
FAILED tests/test_cupy.py::test_to_device_with_stream - RuntimeError: The device that the stream is created on (0) does not match with the...

This is probably related to #314 @crusaderky

EDIT: and indeed, $ git revert e600449 makes tests pass again.

[ev-br]

This blocks the release 1.12 process. Unless there's a quick fix for the test, my options are:

• revert ENH: Simplify CuPy asarray and to_device #314 in for array-api-compat==1.12. Need to re-test scipy because the vendored scipy version includes this PR.
• ignore the test failure and proceed with releasing 1.12 with a known issue for cupy.

[crusaderky]

The first one is just an issue in the tests. The code raises ValueError.
The second test didn't exist before #314 so of course reverting the PR "fixes" the failure.
I'm on holiday until tomorrow and can't debug them from here.

[crusaderky]

What version of cupy do you have installed? What version of the cuda stack? How many GPUs?

[crusaderky]

Re-reading the error message: you have 2+ GPUs, for which the test is faulty. I don't think there is a problem with the code, it's just a test issue.

[crusaderky]

Closed by #325 + #326.