One 、colab Official website

https://colab.research.google.com/

Two 、 To upgrade to Pro

Run any code
Click on the top right corner Check mark RAM Hard disk key Click upgrade
Upgrade needs to be linked to the United States stay windows Hanging down will be convenient
Such as time limit 04/2023 enter 04/23

3、 ... and 、 Use GPU

Click on the top left Code executor
Change the runtime type
choice GPU Standard or high RAM Fine
Uncheck ignore code cell output when saving this notebook

NOTE
 All operations must be in GPU Under certain conditions 
GPU And CPU Not sharing a space 

 see GPU
gpu_info = !nvidia-smi
gpu_info = '\n'.join(gpu_info)
if gpu_info.find('failed') >= 0:
  print('Not connected to a GPU')
else:
  print(gpu_info)

Four 、 Google cloud disk

drive.google.com

Point to the top left New Or right click
more -> Connect more applications ->Colaboratory
Click on install Then click on me gmail user name
In this way, you can right-click ->more->Google Colaboratory

 mount 
from google.colab import drive
drive.mount('/content/gdrive')

5、 ... and 、 Training

Click the terminal in the lower left corner

!pip3 install -q colabcode
from colabcode import ColabCode
!killall ngrok
ColabCode(port=10000, password='ycz')
 Click on the first link   Input password
 If appear welcome Register your account with the Google interface 
 Click the second column on the right to copy authortoken
 go back to colab
 Disconnect the current ColabCode
!ngrok authtoken  Copy content 
 Run again ColabCode  Input password
 appear vscode Interface 
 Three horizontal lines in the upper left corner   terminal   New terminal   see gpu

anaconda  install 
!wget https://repo.anaconda.com/archive/Anaconda3-2021.11-Linux-x86_64.sh
!bash Anaconda3-2021.11-Linux-x86_64.sh
 Be sure to choose yes

NOTE
GPU Next anaconda3 If the installation is successful, the terminal will not display if it is not refreshed 
 It is suggested that vscode In the terminal 
 Multiple windows are recommended after installation conda Open the terminal after 

 Prevent disconnection 
colab Page press  F12 perhaps  Ctrl+Shift+I (mac Press  Option+Command+I) 
 Select the above Console（ Console ）  Enter the following code and enter 
function ConnectButton(){
    console.log("Connect pushed"); 
    document.querySelector("#connect").click() 
}
setInterval(ConnectButton,60000);

6、 ... and 、 preservation

 Top left file   preservation 
 You must refresh the web page after saving   Click again to enter 

7、 ... and 、 Reset the virtual machine

!kill -9 -1