clinfo Does Not Print Anything

Ubuntu 20.04Ubuntu 18.04Ubuntu 16.04

OpenCL will not work if your user is not part of the render group

Open a terminal window by pressing Ctrl + Alt + T keys on the keyboard, then add your user to the correct group:

Ubuntu 20.04Ubuntu 18.04Ubuntu 16.04

sudo gpasswd -a $USER render

Restart your PC:

sudo reboot

Open a terminal window by pressing Ctrl + Alt + T keys on the keyboard, then execute the following commands:

clinfo -l

This will print all available information about all OpenCL platforms on the system and the devices they expose.

Alternatively, if you do not want to add your user to the group mentioned above, you can use sudo:

sudo /usr/bin/clinfo -l

In case the number of platforms is equal to 0 you need to Install OpenCL Drivers On Ubuntu.