How to Monitor Flotherm Licenses with FlexLM

Flotherm is a 3D thermal simulation software for electronics, developed by Siemens. Widely used in the industrial sector, it enables the analysis and optimization of cooling for electronic components, circuit boards, and complete systems. Flotherm licenses are often distributed via FlexLM in floating mode, allowing for centralized use on company servers by multiple users simultaneously.

How can you manage Flotherm floating licenses?

Flotherm uses the FlexLM license manager to manage floating licenses. To monitor usage, you must run terminal commands that interact with the license server, whether from Windows or Linux environments.

First, you need to download the lmutil tool from the official Flexera website. It is important to make sure that the version is the same as or higher than the one installed on the server; otherwise, the output may be incorrect or missing.

Next, it is essential to know:

• The port configured in the license file .lic
• The name of the server running the FlexLM daemon (without a DNS suffix)

If the name is not resolved correctly, it is recommended that you configure the ` hosts ` file or your local DNS settings to ensure proper resolution.

How do I check the available Flotherm licenses?

To view the list of active licenses and their expiration dates, use the following command:

lmutil.exe lmstat -a -c porta@nomeserver

For a trio setup:

lmutil.exe lmstat -a -c porta@server1;porta@server2;porta@server3

On Linux:

lmutil lmstat -a -c porta@server1,porta@server2,porta@server3

Typical output:

Feature         Version   #licenses   Expires       Vendor
flotherm_base   2022.2    8           30-nov-2025   FLOTHERM
flotherm_adv    2022.2    3           30-nov-2025   FLOTHERM

How do I check Flotherm license usage?

To check how many licenses are in use and by whom, run the following command:

lmutil.exe lmstat -S -c porta@nomeserver

Sample output:

Users of flotherm_base:  (Total of 8 licenses issued;  Total of 4 licenses in use)
  "flotherm_base" v2022.2, vendor: FLOTHERM
  floating license
    user1 pc001 (v2022.2) (flo-server/27000 1101), start Tue 07/05 08:45
    user2 pc002 (v2022.2) (flo-server/27000 1102), start Tue 07/05 08:50

Users of flotherm_adv:  (Total of 3 licenses issued;  Total of 1 license in use)
  "flotherm_adv" v2022.2, vendor: FLOTHERM
  floating license
    user3 pc003 (v2022.2) (flo-server/27000 1103), start Tue 07/05 09:00

Why use Observer to monitor Flotherm?

Manual license verification is impractical for ongoing monitoring. Observer automates the process of querying FlexLM servers and presents the information in clear, user-friendly dashboards. With Observer, you can:

• View Flotherm license usage in real time
• Analyze usage peaks, denied requests, and unused licenses
• Receive notifications for deadlines and critical situations
• Export historical reports for analysis and audits

Observer is fully compatible with Flotherm and allows you to optimize the use of licenses within your company.

Contact us for a free consultation or to request a demo of Observer on your infrastructure.