Setting the user name for license checkouts - Arnold User Guide
By default, Arnold licenses are checked out using the host computer name.
You can change this with the ARNOLD_LICENSE_CLM_USERNAME environment variable.
ARNOLD _LICENSE_CLM_USERNAME supports the tokens
It could be just
Or it could be something like arnold .
By default, as of Arnold 6.2.1.0, Arnold licenses are checked out using the host computer name . In older Arnold versions, licenses were checked out with the name arnold.user
This means that Arnold 6.2.1.0 and an older Arnold, like 6.2.0.1, won't share a license if you render with both versions on the same time on the same machine.
To make Arnold 6.2.1 and newer share a license with an older Arnold, set the environment variable ARNOLD _LICENSE_CLM_USERNAME to a rnold .user