User regulation

Access for scientists and research

In order to get your personal and personalized user account (or to extend its validity term) for the Lichtenberg high performance computer, the following user regulations have to be accepted and signed (pp. 7+8 only). For legal reasons, the regulations are available in German. A translation is provided.

Do not share your account, neither by passing on your password nor by sharing your ssh key!

Please note: the validity term of the HLR user accounts is completely independent of any associated project!
As projects may have several users and any given user might be associated with several projects, there is no easy way of unison. Your user account could thus expire even while you are associated with a project still running.

However, you will receive an email reminder ca. 4 weeks in advance of your account's expiration.

Staff members and Students of TU Darmstadt

  • Please fill in the application form on page 7 of the document, print pages 7+8 only (duplex) and send the signed original by post to our address (please refer to the contact information on the right of this text).

Staff members and Students of other Hessian universities

  • Please fill in the application form on page 7 of the document, print pages 7+8 only (duplex) and send the signed original by post to your local contact person.

The HRZ will establish the requested user account for the approved validity term and will inform the user by mail upon completion.

To see the expiry date of your own user account, use the script /shared/bin/account_expire after logging in.

How to set or change my Lichtenberg password?

We are in the process of changing the way your HLR login password is set and maintained.

New users

For all new users (and users changing their main TUID password), the “Lichtenberg” HLR password will now be in sync with your TUID password. You log in to the HLR with the same password you set for your TUID.

Existing users

For that to establish for your own TUID, please log into the current IDM system of the TU Darmstadt (SSO – Single Sign On), and change your TUID password to a new one. A few seconds later, you should be able to log in to the HLR with that same password.

As long as you don't actively change your TUID password, your HLR login password remains the old (or last) one you have set yourself on the former “ANDO” portal.

The above holds true also for Guest-TUIDs.

Cluster-Usage for courses (teaching, workshops)

For courses, lectures and workshops, we can set up separate accounts on request. Please find here more information.

Information for new users

  • 2020/06/05

    Caution: Phishing Calls

    in the context of the digital attacks on german high performance computers

    In recent days, at least one phishing call was placed at the HRZ, possibly suspicious with respect to the current attacks on german super computer centers.

  • 2020/05/27

    Maintenance on the cooling system in the HLR building


    Update 2020-05-25:

    The cold water cooling system has been cut and welded at the critical joints, so that we can continue cooling with other means.

    Since the provider of the coming “Lichtenberg 2” successor system has finished the storage benchmarks during the weekend, we're currently in the process of bringing up the Lichtenberg 1 cluster again.


    For an extensive repair of the defective main chilling unit and retrofitting of the cold water pipe system, the whole water cooling system is unavailable.

    Due to this, no electrical (and thus, heating) device is allowed to be running, and so the whole HPC cluster and the Housing servers in L5|08 need to be switched off.

  • 2020/05/19

    Campus-wide License for MATLAB, Simulink, …

    To avoid usage restrictions due to the “Corona situation”, a campus-wide license (CWL) is available for MATLAB, Simulink and all adjacent toolboxes as well as a variety of e-learning materials. The CWL is valid with immediate effect, and will last until 2020-09-30.

  • 2020/04/28

    Trafo-Ausfall Lichtwiese

    HLR-Gebäude L5|08

    Update vom 28.04.2020 um 15:18 Uhr:
    Die Störung ist behoben. Der Strom für den regulären Betrieb ist wieder gewährleistet.


    Trafo-Ausfall im HLR-Gebäude L5|08. Inbetriebnahme des anderen Trafos ist gerade in Arbeit.
    Betroffen sind nur der Lichtenberg-Cluster und die Housing-Nutzer des HLR-Gebäudes.

  • 2019/12/24

    Regular Consultation on Project Proposals

    Due to the current situation, the monthly “open office hours” cannot be held in presence. Please – if a talk is necessary, we can set up a video conference.

  • 2019/07/30

    Lichtenberg cluster ready for machine learning

    Supporting AI research by extension of the Python programming language and containers

    Research in Artificial Intelligence (AI), and more specifically Machine Learning (ML) is the key issue in computer-aided methods of the last years. To support scientists in their ML and Deep Learning related research on the Lichtenberg cluster, and to attract more users, the Python installation in the module system have been complemented.