Python environment configuration test code gpu: false in win10
problem
By articles configuration python environment, following the articles 2 the operation of the installation pytorch, pycharm the input test code
import torch
print(torch.__version__)
print('gpu:',torch.cuda.is_available())
The output is "gpu: False"
Although the article 1 written by Dong Ge is false=. =
the reason
After asking Cheng, I found the problem because Tsinghua Yuan only has a CPU version and no corresponding GPU version.
Knowing method
win+R to open the run shortcut key, enter cmd to open the command window, enter the following code
conda list
Find pytorch and torchvision
Mine is like this
pytorch 1.4.0 cpu_py38ha775e86_0
torchvision 0.2.2 py_3
Does it look like the cpu version? ! !
Solution
Uninstall and reinstall pytorch.
Uninstall
1. Use conda to uninstall it
win+R to open the run shortcut key, enter cmd to open the command window, enter the following code
conda uninstall pytorch
conda uninstall libtorch
2. If you use pip to install, you must use pip to uninstall
Although I guess our group of people should not use pip
win+R to open the run shortcut key, enter cmd to open the command window, enter the following code
pip uninstall torch
installation
Obediently follow Posts 1 Ba pytorch installed it is not fragrant it [doge]
If it is found that the speed is very slow, then it is an external network after all. You can understand what you should do and live a healthy life online scientifically.
supplement
PS1: The two lines of commands using conda may not be able to delete the virtual environment, so you need to delete it manually. The address of the virtual environment should be the folder called pytorch in anaconda-envs . I don't know whether to delete it or not, I deleted it anyway. Delete at your own risk .
PS2: In fact, just reload finished pytorch I went pycharm in the input test code, will report the wrong file not found, then I think it is estimated that a path you want to python.exe conda installation of re-import, refer to article 1 Import namely can.
PS3: Finally! ! ! gpu: true! ! ! At least fifteen hours of hard work a day and a night! No! Have! White! fee!
PS4: Give it a thumbs up