Effective immediately, we have implemented a new policy to better manage the limited number of NAS MATLAB licenses. In summary:

• Each user is limited to a single interactive MATLAB license.
• When using the MATLAB GUI, after 4 hours of being idle and not running a job, the license will be revoked.
• Start a second MATLAB GUI on the same host to compile or use toolboxes. Exit the second GUI once done with the license to immediately free up the compiler/toolbox license.
• If users are waiting for a license, a MATLAB process that has been idle for more than 10 minutes may be terminated to revoke its license and make it available to another user.

For more information about this policy and for alternatives to using NAS MATLAB licenses, see the following Knowledge Base articles:

• MATLAB License Policy
• Using NAS MATLAB Licenses

If you have any questions or would like more information, please contact the Control Room at (800) 331-8737, (650) 604-4444, or support@nas.nasa.gov.