Status: all CUDA-capable devices are busy or unavailable

Hi Nvidia Support,

I am trying to run tensorflow with GPU but error “Status: all CUDA-capable devices are busy or unavailable” keep appeared although there is no process running on GPU.

Development Environment Details:
Nvidia driver version: 440.118.02
Cuda toolkit version: 10.2.89
Cudnn version: 8.0.4
Tensorflow version: 2.3.0
Python version: 3.8

nvidia-smi -->

Error -->

Hope can get advise from Nvidia Support. Thanks a lot.