python：無法導入tensorflow-gpu

Question

我在我的機器上使用Anaconda3成功創建了我的tensorflow環境，並在此鏈接上引入了步驟。 但是當我嘗試做的時候：

>>> import tensorflow as tf

我收到以下錯誤消息：OSError和ImportError。

Traceback (most recent call last):
  File "C:\Users\Froilan\Anaconda3\envs\tensorflow\lib\site-
packages\tensorflow\python\platform\self_check.py", line 75, in preload_check
ctypes.WinDLL(build_info.cudart_dll_name)
  File "C:\Users\Froilan\Anaconda3\envs\tensorflow\lib\ctypes\__init__.py", line 351, in __init__
self._handle = _dlopen(self._name, mode)
OSError: [WinError 126] This specified module could not be found

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "C:\Users\Froilan\Anaconda3\envs\tensorflow\lib\site-packages\tensorflow\__init__.py", line 24, in <module>
from tensorflow.python import *
  File "C:\Users\Froilan\Anaconda3\envs\tensorflow\lib\site-packages\tensorflow\python\__init__.py", line 49, in <module>
from tensorflow.python import pywrap_tensorflow
  File "C:\Users\Froilan\Anaconda3\envs\tensorflow\lib\site-packages\tensorflow\python\pywrap_tensorflow.py", line 30, in <module>
self_check.preload_check()
  File "C:\Users\Froilan\Anaconda3\envs\tensorflow\lib\site-packages\tensorflow\python\platform\self_check.py", line 82, in preload_check
% (build_info.cudart_dll_name, build_info.cuda_version_number))
ImportError: Could not find 'cudart64_80.dll'. TensorFlow requires that this DLL be installed in a directory that is named in your %PATH% environment variable. Download and install CUDA 8.0 from this URL: https://developer.nvidia.com/cuda-toolkit

這可能與我的CPU有關嗎？ 我使用的是Ryzen 1700. + GPU：GTX 1050 Ti - 略遜於1080 ti ......但我聽說GPU仍然會比CPU更好。

Answer 1

你需要先安裝CUDA庫，我建議你按照這個鏈接：

https://gist.github.com/mjdietzx/0ff77af5ae60622ce6ed8c4d9b419f45

更新：對於Windows操作系統，請遵循以下方法：

http://blog.nitishmutha.com/tensorflow/2017/01/22/TensorFlow-with-gpu-for-windows.html