User settings such as license configuration, resource configuration, last working directory, etc are saved in a local, user specific preference (.ini) file.

Additionally, it is possible to save the license configuration settings in a system wide preference file that applies to all users of the computer. This avoids the need for each user to configure the license.

Notes

If license configuration information is stored in both a local and system preferences file, the local settings will be used.
License server information set using the preference file for non graphical Linux installations.
In the vast majority of situations, there is no need to manually edit or remove the preference files.
It is not recommended to modify or remove these files unless specifically instructed in product documentation or by Lumerical Support.

Preference files

License.ini

Contains the license server information.

Shared.ini

Stores the shared settings for all the products including but not limited to the recently opened files and supported application examples.

<product>.ini

Product specific settings like display and solver resource settings. Each product will have its own preference file.
- FDTD Solutions.ini
- MODE Solutions.ini
- Lumerical DEVICE.ini
- INTERCONNECT.ini

Locations

Linux

Local or user specific:

~/.config/Lumerical/<filename>.ini

System wide:

/opt/lumerical/2019b/Lumerical/<filename>.ini

macOS

Local or user specific:

/Users/[UserName]/.config/Lumerical/[Product].ini

(no system wide settings)

Windows

Local or user specific:

C:\Users\<UserName>\AppData\Roaming\Lumerical\<filename>.ini

System wide:

C:\Program Files\Lumerical\2019b\Lumerical\<filename>.ini

License configuration

For non-graphical Linux systems, user or system wide license server configuration can be done using;

Preference file
Environment variables

1. Preference file

Create the preference file directory.
e.g to create a global or user preference file on Linux create the following folders, if these does not exist.

(global preference file location - sudo/root access required)
$ sudo mkdir /opt/lumerical/<version>/Lumerical/

(user preference file location)
$ sudo mkdir /Users/<UserName>/.config/Lumerical/

Create the License.ini file in this new folder. (case sensitive)
```
$ vi License.ini
```
The file should contain the following three lines of text, that contains;
- port number and Host Name or IP address of the computer hosting FlexLM
  e.g. the license server name is "lumserver" and the TCP port is "27011" (default port).
```
[license]
type=flex
flexserver\host=27011@lumserver
```

2. Environment variables

LUMERICL_LICENSE_FILE (Lumerical specific)
or
LM_LICENSE_FILE (FlexLM global variable)

execute/run the LUMERICL_LICENSE_FILE env variable (only for Lumerical licenses)
(shown below using the default port, "27011" and "lumserver" as the license server HostName)
```
$ export LUMERICL_LICENSE_FILE=27011@lumserver 
```
If you you only have Lumerical license on this machine, you can use FlexLM's global environment variable, LM_LICENSE_FILE.
```
$ export LM_LICENSE_FILE=27011@lumserver 
```

Note

The LM_LICENSE_FILE variable will be used by all vendors that is using the FlexNet license manager on the machine.

Preference files (.ini)