CUDA error: CUDA-capable device(s) is busy

RuntimeError: CUDA error: CUDA-capable device(s) is/are busy or unavailable
CUDA kernel errors might be asynchronously reported at some other API call, so the stacktrace below might be incorrect.
For debugging consider passing CUDA_LAUNCH_BLOCKING=1.
Compile with TORCH_USE_CUDA_DSA to enable device-side assertions.

notebook 里PAI-DSW GPU，以前都可以正常使用的，现在突然不能使用了。