GPU fails to activate

[xiachen-coder]

cross-simV2.0
When executing python run_inference.py, the GPU still fails to activate.

What I have tried:

1. I have verified that TensorFlow-GPU is working by running a gpu_test.py.
2. I have set useGPU = True in inference_config.py.
3. I have already commented out the line #os.environ["CUDA_VISIBLE_DEVICES"] = str(-1) in run_inference.py, which disables GPU usage.