TensorFlow 安装与环境配置

在 PyCharm 中运行代码后,出现以下代码,但是没有报错,输出结果正常。请问是什么原因?

2020-08-08 18:02:52.694491: W tensorflow/stream_executor/platform/default/dso_loader.cc:59] Could not load dynamic library ‘cudart64_101.dll’; dlerror: cudart64_101.dll not found
2020-08-08 18:02:52.694817: I tensorflow/stream_executor/cuda/cudart_stub.cc:29] Ignore above cudart dlerror if you do not have a GPU set up on your machine.

2020-08-08 18:02:57.836214: W tensorflow/stream_executor/platform/default/dso_loader.cc:59] Could not load dynamic library ‘nvcuda.dll’; dlerror: nvcuda.dll not found
2020-08-08 18:02:57.836522: W tensorflow/stream_executor/cuda/cuda_driver.cc:312] failed call to cuInit: UNKNOWN ERROR (303)
2020-08-08 18:02:57.849447: I tensorflow/stream_executor/cuda/cuda_diagnostics.cc:169] retrieving CUDA diagnostic information for host:
2020-08-08 18:02:57.849992: I tensorflow/stream_executor/cuda/cuda_diagnostics.cc:176] hostname:
2020-08-08 18:02:57.850409: I tensorflow/core/platform/cpu_feature_guard.cc:142] This TensorFlow binary is optimized with oneAPI Deep Neural Network Library (oneDNN) to use the following CPU instructions in performance-critical operations: AVX2
To enable them in other operations, rebuild TensorFlow with the appropriate compiler flags.
2020-08-08 18:02:57.862757: I tensorflow/compiler/xla/service/service.cc:168] XLA service 0x11aac2bc010 initialized for platform Host (this does not guarantee that XLA will be used). Devices:
2020-08-08 18:02:57.863116: I tensorflow/compiler/xla/service/service.cc:176] StreamExecutor device (0): Host, Default Version