Licensing

Vollo is licensed on a per-device basis.

Obtaining a license

To obtain a license for your device(s), you will need to provide Myrtle with the device ID(s).

Load the kernel driver if you haven't already done so:
```
sudo ./load-kernel-driver.sh
```
Run vollo-tool device-ids, this will enumerate all Vollo accelerators and and output their device IDs.
```
bin/vollo-tool device-ids | tee vollo.devices
```
Send the vollo.devices to vollo-license@myrtle.ai. We will then issue a license for the device(s).

Installing a license

The license file location should be set in the environment variable MYRTLE_LICENSE.
```
export MYRTLE_LICENSE=<license file>
```
Check that the license for your device(s) is being recognised.
```
bin/vollo-tool license-check
```
If successful, the output should look like this:
```
Ok: found 2 devices with valid licenses
```