Learning Forum

[soa45]

I am trying to run Lumerical FDTD on "Narval HPC cluster (Alliance Canada)" , and as shown on my WSL, the cluster isn't finding my shares Web license.

I don't know how to proceed with this.

Please help.

 

 

 

[Lito]

To configure Ansys Shared Web Licensing (ASWL) on a headless Linux cluster, you will use the Ansys Licensing Settings utility via the command line. This process allows you to enable shared web licensing and set license service priorities without a graphical interface. [2] 

Run the commands highlighted below on your cluster's head/login node. Ensure that the cluster has Internet access to connect and check out the licenses from Ansys Shared Web licensing. 

Step-by-Step Configuration

• Locate the Ansys Licensing Settings utility on your Linux system, typically found at:

        /licensingclient/linx64/LicensingSettings  [1]

• To enable Shared Web Licensing, run the following command as the user who will run Ansys applications:

        LicensingSettings web shared enable [2]

• If you have multiple licensing models (e.g., Shared Web, FlexNet Publisher, Elastic Web), set the license service priority with:

        LicensingSettings preferences service set --input "Shared web","FlexNet Publisher","Elastic web" 

Additional Considerations

• Your cluster nodes must have outbound network access to the Ansys Shared Web Licensing service for license checkout. [8]
• You may need to generate and provide an AnsysID token for authentication. This is typically managed via the Ansys ID portal (https://id.ansys.com) and may be required for automated workflows. [8]
• All commands should be executed with the appropriate user permissions and environment variables set for the Ansys installation.

Generating Ansys ID Tokens

• Log in to the Ansys ID Portal at https://id.ansys.com using your Ansys credentials. 
• Navigate to the Users section, select your user, and click the three-dot menu to choose Manage Tokens. 
• Click Create Token, name the token, and download the token file (typically in JSON format) for use in your workflow.

Integrating Tokens into Automated Workflows

• Store the downloaded token file securely on your cluster (e.g., in a protected directory accessible to workflow scripts). [4]
• Use the Ansys Licensing Settings utility or installer commands to authenticate using the token file:

        LicensingSettings account login --input "/path/to/token.json"