Altair Units

Altair provides a cloud-based license server solution known as Altair Units. This allows customers to use either/or a traditional on-premise license server or an Altair server managed via Altair One. Altair One is Altair’s global customer portal.

Altair Units is a cloud-based licensing system. As long as you have internet access, the units can be used to run all applications. There is no VPN necessary.

A client computer and/or individual user is authorized to use an accounts license. Typically, an individual user will authorize their own machine and user/login account. A single machine that is shared by multiple users may either have multiple authorizations for each user or if done by an admin, a single machine can have ALL users authorized.

The primary differences between these two authorization schemes are for accounting and management purposes. If an individual authorizes a machine, that machine may be de-authorized just for that individual, leaving other users authorized. When the machine uses a ‘system wide’ authorization, the entire machine may be de-authorized by simply de-authorizing the system wide authorization.

The primary use case for a system wide authorization is for compute clusters. It is not known at authorization time what machines in the cluster a particular user may end up on at run-time, and so on. So, the admin authorizes the entire machine for all users. The usage .log files will still record the username, but the authorization will be for all users.

Set up the Altair Units System

In order to use the Altair Units system you must first have a valid Altair One (https://altairone.com/) user account, and your account (your company's account) must have purchased and enabled Altair Units. Check with your administrator if needed.

Once you have a valid Altair One account, you should be able to see the Altair Units from the dashboard available from the Manage License menu in Altair One. There are both administrative functions (if you are one of your company's designated admins) and user functions. This section describes the typical user functions. The two main functions are authorizing a machine to use Altair Units and checking on current usage.

In order to utilize your purchased units, each machine you wish to use your units from must be authorized prior to running any client applications. This can be done in two different ways. The default method to access an Altair license is directly from the application License Setup dialog available in HyperWorks, the Inspire Suite, SimLab, and SimSolid. For other applications, the Altair License Utility is used.

Access Altair Units from the License Setup Dialog

  1. Open the License Setup dialog using one of the following options:
    • If you have configured your license, navigate to File > Licensing.


      Figure 1.
    • If you have not configured your license, the License Setup dialog shown in the next step displays automatically when you start the application.
  2. In the License Setup dialog, enter your Altair One credentials (Username and Password) under the Managed on Altair One section.


    Figure 2. License Setup Dialog
  3. Click Activate.

Access Altair Units from the Altair License Utility

Tip: If you have HyperWorks, any product of the Inspire Suite, SimLab, or SimSolid installed on your machine, use the method (License Setup dialog) described in the previous section.
  1. Start the Altair License Utility.
    • On Windows, this is located in the start menu under Altair 2022.2.

      You can also start it directly from:

      <ALTAIR_INSTALL_PATH>\security\bin\win64\gui\almutil_gui.exe (usually C:\Program Files\Altair\2022.2\security\bin\win64\gui\almutil_gui.exe).

    • On Linux, you can start it directly from:

      <ALTAIR_INSTALL_PATH>/altair/security/bin/linux64/gui (by default /root/2022.2/altair/security/bin/linux64/gui).

  2. Click the Managed Licensing tab.
  3. In the Authorization section, enter your Altair One credentials (E-mail Address and Password).
  4. Click Sign In.


    Figure 3.
    A message displays that the authorization was successful.


    Figure 4.
  5. Click OK.
  6. Close the Altair License Manager Utility.
Important: If you have ALTAIR_LICENSE_FILE set or a local, nodelocked license file in the default security location, then those are used first before trying Altair Units. If you want to change that, set ALM_HHWU=T in your environment variables. This informs the client to not try using LM-X first, and only use Altair Units. In contrast, if you set ALM_HHWU=F, then the opposite occurs. Clients only use LM-X and do not use Altair Units even if authorized. If not set at all, then the default is to try LM-X then Altair Units. You cannot change that order.

Altair Units System Advanced Settings

There are many advanced settings that may be useful for Altair Units. Many consist of setting environment variables to change behavior or running almutil to change settings.

If you have a shared home directory on multiple machines, you may have multiple config files. Each one will be in a separate directory under .altair_licensing in your home directory.

Location of the Altair Units config file on supported platforms is as follows:

(~ is your home directory and HOSTNAME will be replaced with the actual HOSTNAME of each system authorized)
Platform
Default Location
Windows
C:\Users\<USERNAME>\AppData\.altiar_licensing\<HOSTNAME>\altair_hostedhwu.cfg
Linux
~/.altair_licensing/<HOSTNAME>/altair_hostedhwu.cfg