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Access and User Regulations

General Scientific/Research Usage

For accessing and using the Lichtenberg cluster as a scientist, the following is necessary:

1) Project – you need a project to account the computing resources on. The application can be found here: Project Application.

Medium and Large projects are scrutinized scientifically (according to the conditions of the steering committee). Small projects will just be checked technically for feasibility.

2) Access – to log in and submit jobs on your project, you also need a user account (according to the user regulations). The application form needs to be filled, signed and its original (in paper form) sent to us.

Your user account (2) can be extended even without valid/running project, for you to have access to your research data even after end of a project (eg. to transfer and back up data from the file systems of the HPC to your own storage).

Using the HLR for Lectures, Courses and Trainings

For accessing the Lichtenberg cluster in the context of lectures and courses, please find further details here:Lectures and workshops“.

Recommendation: In order to have a smooth and efficient start of work with the Lichtenberg-HPC, we advise all new users to attend the ”Introduction to the Lichtenberg High Performance Computer" mentioned below.

Deadlines – application deadline for L proposals

  • Project start 1st Feb.: deadline 1st Nov. of the year before
  • Project start 1st May: deadline 1st Feb. (same year).
  • Project start 1st Aug.: deadline 1st May (same year)
  • Project start 1st Nov.: deadline 1st Aug. (same year)

Information for new users

  • 2018/07/01

    Introduction to the Lichtenberg High Performance Computer

    For the (potential) users of the Lichtenberg supercomputer, a monthly introduction will be held in Darmstadt. Subjects are the available hardware and the general use of the (batch) system.

  • 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.

  • 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.

  • 2019/07/30

    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.