cuda.core.CUDAWarning

exception cuda.core.CUDAWarning

Warning issued when cuda.core hits a CUDA error it cannot raise.

cuda.core raises exceptions for failures in ordinary calls. Some failures happen where no exception can propagate: while a resource is released by the garbage collector or by a CUDA callback, including the driver calls that switch and restore the CUDA context around such a release. Those failures are reported as this warning instead, and the affected resource may have leaked.

Filter on this category to make such failures fatal in tests:

warnings.filterwarnings("error", category=cuda.core.CUDAWarning)

Because the report comes from a destructor, an escalated warning cannot be raised into user code; it is delivered through sys.unraisablehook() (which pytest surfaces as PytestUnraisableExceptionWarning).

Added in version 1.3.0.