In order to be able to use the Lichtenberg High Performance Calculator quickly and efficiently, we recommend that all new users take part in the "Introduction for Users of the Lichtenberg High Performance Calculator".


In order to use the Lichtenberg high-performance computer for scientific purposes, two basic requirements must be met: a project has to be set up to which the computing time used can be booked. And there has to be a valid user account and associated with a project.

All important information about the login nodes, public key, ciphers, MACs, Kex Algorithms and Host Key Algorithms can be found here.

Access to the cluster for users is only possible via the login nodes – a current list of available login nodes can be found here.

Computing in the cluster is organised via the Slurm batch system. Slurm calculates when and on which of the compute nodes the job is started. Among other things, the demand for resources, the waiting time of the job and the priority of the assigned project are taken into account.

More about “Working with SLURM”

By default, jobs are executed on the entire cluster and thus on nodes of all phases (expansion stages).

In order for a job to be executed on a specific or special hardware (equipment), special resources must be requested – we basically distinguish by processor type and by accelerator type, but also by sections.

More about “Queues/Resources”

Various file systems are available for user data.

Learn more

Use of the Lichtenberg HPC is only possible via projects that have been allocated the approved number of core hours.

Learn more