It’s an environment variable — all environment settings for the current shell are passed to a process when it starts.
So you can set it from the command line and start the engine with hcienginerun if you like.
If you use the GUI, you will need to modify the environment variable and bounce the hostserver for it to pick up any environment changes. You will then need to restart your engine(s) through the GUI for changes to take effect.
Note that if you make the change in .profile you will need to log out and log back in for the new environment setting to be picked up by your shell.
Rob Abbott
Cloverleaf Emeritus
