Access permissions

Easy Diffusion needs access to the GPU devices to use them for computations.

Check the owner of one of these devices:
```
ls -al /dev/kfd
```
Determine the name of the group:
```
crw-rw---- 1 root render 511, 0 Sep  3 11:31 /dev/kfd
                  ******
```
In this example, the group owning the file is called render
Check whether your user is member of this group:
```
groups
```
If your user is already a member of the group, you're done.
If your user is not yet a member, add it to the group:
```
sudo usermod -aG render $USER
```
Replace render by the name of the group if it has a different name in your Linux distribution.
Log off and log on again to make this change effective.

Basics