DKRZ help desk is the primary contact for all questions regarding DKRZ systems and services.
Trouble logging into the HPC system? You might have to verify your account at luv.dkrz.de.
First level support for all questions and problems in usage of DKRZ systems
login and account
HLRE project administration
general Linux/UNIX problems
Extended second level support
Individual personal advice on the use of our systems
Help with porting your applications to our systems
Conceptual guidance on parallelization and optimization strategies for your code, specifically with respect to our HPC systems.
Support and cooperation projects with regard to the visualization of your data
Contact / Requests#
You can contact our user support at:
via phone number
+49 40 / 460094 275
preferably during the following hours:
Monday through Thursday: 10:00-11:30 and 13:30-16:00
Friday: 10:00-11:30 and 13:30-15:00
Information we need to help with your request#
You can reduce the time required to solve your problem by including all relevant information into your request. The breadth of topics we deal with makes it difficult to be very specific but here is some information we often have to ask for.
Software problems (crash, malfunction, etc.)#
Please be as specific as you can. In most cases we will need to reproduce your problem in order to help.
Detailed description of the problem incuding error logs, job scripts
Where did it happen: Job ID, Node (if not in job)
If the error happened with your self-compiled software/model
Instructions how to build the software
Instructions and data to run the software and reproduce the error
Problems with your data#
If you have questions regarding data we provide, then please contact data support.
However, if you have trouble reading or writing your own data either
with a standard tool like
ncdump or with your model, then
you should provide the following information.
Detailed description about what you did and how to reproduce it
Full path to the data in question
If possible, their permissions should allow us to read them without elevated access rights
Information about your environment. Modules loaded, paths set, etc.
Problem with your user account#
You can only request support for your own user account. Please provide
Detailed description of the problem incuding error logs
For problems with
ssh, use the
Login node where you experienced the problem
Time of the problem
Project ID if relevant