Shutdown graphical user interface in order to use more GPU ram

[farhad-bat]

I wrote a program in PyTorch but unfortunately I need one more GB of GPU ram. My GPU is 1080 Ti and my OS is Ubuntu 18.04.
In other to solve my problem I need to shutdown the Graphical User Interface of Ubuntu 18.04. However I don’t know how do that.

[Bashing-om]

farhad-bat; Hello. Welcome to the forum.

Boot to terminal from grub:
At grub's boot menu 'e' key for edit mode (with the desired kernel highlighted)
that gives you a screen for the kernel's boot directives. Here arrow down to the line starting with linux, remove "quiet splash" and insert the term:
systemd.unit=multi-user.target

Key conbo ctl+x to continue the boot process - to terminal.
Log in here with user name and pass word - when the password is entered there will be no response to the screen, enter password blindly and hit the enter key.

see: from terminal:

man bootup

for full documentation

And
https://askubuntu.com/questions/8596...n-console-mode
for some other options.

it's ubuntu

we can do that