Pytorch installation (very detailed)

1.pytorch Installation

1.1 Environment configuration

Run the

Anaconda Please see the detailed installation steps I wrote before http://t.csdn.cn/CZtm3

1.2 establish pytorch Folder （ Environmental Science ）

Then enter and wait for installation

If this appears, it will be successful

Look at the folder again, there is one more file pytorch

Then we enter the command to enter pytorch Environmental Science conda activate pytorch

We can see that we have entered pytorch Environmental Science

This command is to view the packages installed in this environment conda list

1.3 see pytorch Version history

Links to previous versions https://pytorch.org/get-started/previous-versions/

I chose this , Because of my cuda The download is 11.1

1.4 Next, there is a trick

We are using anaconda Environmental management software , Various packages downloaded through instructions , Its default source , That is, the server that provides the installation package or compressed package , It was set up by their company . The location of this server is abroad , So the link speed is slow , unstable , Download speed is also slow . We can set the download source as domestic source through instructions .
Tsinghua source is recommended here 、 China University of science and technology .

1.4.1 Tsinghua source :

conda config --add channels https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free/
conda config --add channels https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/main/
conda config --add channels https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/pytorch/
conda config --set show_channel_urls yes

1.4.2 China University of science and technology ：

conda config --add channels https://mirrors.ustc.edu.cn/anaconda/pkgs/main/
conda config --add channels https://mirrors.ustc.edu.cn/anaconda/pkgs/free/
conda config --add channels https://mirrors.ustc.edu.cn/anaconda/cloud/conda-forge/
conda config --add channels https://mirrors.ustc.edu.cn/anaconda/cloud/msys2/
conda config --add channels https://mirrors.ustc.edu.cn/anaconda/cloud/bioconda/
conda config --add channels https://mirrors.ustc.edu.cn/anaconda/cloud/menpo/
conda config --set show_channel_urls yes

Copy and paste all instructions into the command line . Download speed takes off after changing the source .

Copy these instructions to Anaconda Inside

Finish changing the download source .

Check whether the source has been added. The instruction is

conda config --show-source

1.5 Start the download pytorch Environmental Science

Then return and wait for installation


Here is the version of the download package

What is shown here is what needs to be installed size

fill y enter

Waiting for the installation

Installation successful

sign out pytorch Environmental Science

conda deactivate

View environment information

conda info -e

complete

1.6 verification pytorch Installation successful

stay pytorch Input in the environment python, then import torch, My situation indicates that the installation is successful

import torch

This is verification cuda Whether it can work normally

torch.cuda.is_available()

sign out python Environmental Science

quit()

1.7 uninstall pytorch Environmental Science

This statement will pytorch Environment delete , Follow the prompts , I'm not going to show you , It's not easy to download a good environment , Don't delete

conda remove -n pytorch --all

1.8 take pycharm Replace the environment with Anaconda Under the pytorch Environmental Science

Click on settings

Read my blog in detail http://t.csdn.cn/emDn2

Then click add

The end