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How do I monitor the usage of license keys for MATLAB and toolboxes?

I would like to monitor the usage (number of users) of license keys for MATLAB and other MathWorks products.


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1 Answer

Answer by MathWorks Support Team on 16 May 2019
Edited by MathWorks Support Team on 16 May 2019
 Accepted Answer

If you have a network license, there are several ways to monitor license usage.
*(1) *To check current license usage, you can use the lmstat function (if the network license manager is running Linux or Mac OS X).
The lmstat function will display the following information:
- Username of person that checked out the license.
- Hostname of computer that the license was checked out on.
- Date and time that license was checked out.
To use the lmstat function, open Terminal and run the following commands.
cd $MATLABROOT/etc/glnxa64
./lmutil lmstat -a
cd $MATLAB/etc/maci64
./lmutil lmstat -a
- Open the folder $MATLABROOT\etc\win64
- Run "lmtools.exe".
- Go to the "Server Status" tab.
- Click on "Perform Status Enquiry".
For more information about lmtools, please see the following documentation:
Alternatively, you can open Command Prompt and run the following commands.
R2011a and later (64-bit):
cd $MATLABROOT\etc\win64
lmutil lmstat -c license.dat -a
R2011a and later (32-bit):
cd $MATLABROOT\etc\win32
lmutil lmstat -c license.dat -a
R2010b and earlier:
cd $MATLABROOT\flexlm
lmutil lmstat -c license.dat -a
By default, $MATLABROOT = C:\Program Files\MATLAB\R20XXx
If you cannot find the above directories, you may not be on the license server. Please refer to following support article:
Is there a way for licenses to be monitored from the client machine instead of the server?
(2) For a long-term record of license usage, view the license manager log file.
The network license manager log file will show license check-ins and check-outs.
When someone starts using a product, it checks out a key.
When someone stops using a product, it checks the key back in
You can also view the log file in lmtools.exe.
- Go to "Config Services" tab.
- Click on "View Log".
The log will be displayed in a pop-up window.
Example of lmlog.txt:
11:40:22 (lmgrd) -----------------------------------------------
11:40:22 (lmgrd) Please Note:
11:40:22 (lmgrd)
11:40:22 (lmgrd) This log is intended for debug purposes only.
11:40:22 (lmgrd) There are many details in licensing policies
11:40:22 (lmgrd) that are not reported in the information logged
11:40:22 (lmgrd) here, so if you use this log file for any kind
11:40:22 (lmgrd) of usage reporting you will generally produce
11:40:22 (lmgrd) incorrect results.
11:40:22 (lmgrd)
11:40:22 (lmgrd) -----------------------------------------------
11:40:22 (lmgrd)
11:40:22 (lmgrd)
11:40:22 (lmgrd) Done rereading
11:40:22 (lmgrd) FLEXnet Licensing (v11.4.0.0 build 31341) started on license_server (IBM PC) (4/20/2008)
11:40:22 (lmgrd) Copyright (c) 1988-2006 Acresso Software Inc. All Rights Reserved.
11:40:22 (lmgrd) US Patents 5,390,297 and 5,671,412.
11:40:22 (lmgrd) World Wide Web: <>
11:40:22 (lmgrd) License file(s): C:\Program Files\MATLAB\R2007a\flexlm\license.dat
11:40:22 (lmgrd) lmgrd tcp-port 27000
11:40:22 (lmgrd) Starting vendor daemons ...
11:40:22 (lmgrd) Started MLM (pid 10216)
11:40:22 (MLM) Server started on license_server for:MATLAB
11:40:22 (MLM) SIMULINK
11:40:22 (lmgrd) MLM using TCP-port 1253
11:40:24 (MLM) OUT: "MATLAB" jsmith@license_server
11:51:04 (MLM) IN: "MATLAB" jsmith@license_server
12:18:07 (MLM) OUT: "MATLAB" jsmith@license_server
12:20:25 (MLM) OUT: "SIMULINK" jsmith@license_server
This logfile indicates that the user jsmith took out a MATLAB key from the server license_server at 11:40 and that it was returned at 11:51 when he exited MATLAB. Then, at 12:18 he took out a MATLAB key again, and this time, took out a SIMULINK key at 12:20.
(3) Flexera Software offers FlexNet Manager, which is software used for tracking and monitoring license usage.
For more information, please visit Flexera's website:


I have not administered a license server for over 7 years, so I do not know if it has improved.
How do i get average number of users over a period of time?
Back when I administered a license server, the logging tools provided with FlexLM were not good at statistics, and it was understood that if you needed real statistics that you needed to buy a third party monitoring package.

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