A version of Ansys is installed for Leeds researchers who have access to either their own or a departmental license. This supports the infiniband interconnect so can be used for runs >8 processors in size.

Ansys contains several tools for Engineering simulation, specifically Fluent and CFX. Information on Ansys can be found on the Ansys web site:

Setting up the license

The license is obtained through the ANSYSLMD_LICENSE_FILE variable. To set it in bash do:

If accessing for the first time, there is an additional step (see the next section on this page) required to choose whether you are using commercial or academic licenses. To get the values of <port>&<machine> specific to your group/department please contact your local IT support.

Setting up the path/environment:

All variables can be set by loading the ansys module:

To load a specific version of Ansys, specify this on the module command i.e.:

Running Fluent

Running CFX

Additional Step for Using Ansys the First Time

When accessing Ansys for the first time, there is a per-user setting that chooses whether commercial (default) or academic licenses should be used. You will need a SSH connection with X-forwarding enabled to configure this setting. Documentation for gaining ssh access to the ARC systems is in the web pages that describe how to login in from each of the 3 main operating systems i.e., Logon from Linux, Logon from Mac OS X and Logon from Windows.

If you have not already done so, set the license server and port:

Next, ensure that you have the ansys module loaded for the particular version you wish to configure its licenses, e.g.:

for ansys version 15.0.5 (the latest version on the ARC clusters)

You now need to launch the license administration interface. The simplest way to do this is to start cfx:

and select Tools/Ansys client Licensing Utility from the menu.

This will present you with the following window:

Configuring a license for Ansys using the license manager.
Configuring a license for Ansys using the license manager.

Select “set license preferences for user abcxyz”

In the next window, select the product you wish to configure (e.g. 12.1)

Selecting the right license preferences.
Selecting the right license preferences.

In the next window that appears, select the radio button that says Use academic licenses:

Finally select the academic license option.
Finally select the academic license option.

Select OK, then exit the license manager.

This will configure Ansys to use Academic licenses for all future use.