Bonna – MPP Cluster

The small MPP cluster Bonna is available to scientists since 2019. It is maintained and supported mainly by the Fraunhofer Institute for Algorithms and Scientific Computing SCAI.

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Technical Details

Peak Performance:  1.5 × 10^14 Operations Per Second (150 TFlop/s)

70 Compute Nodes

  • Total # of Cores: 2240
  • Sockets / Node = 2
  • Cores / Socket = 16
  • Total RAM: 13.4 TB
  • RAM / Node = 192 GB
  • RAM / Core = 6 GB
  • Local SSDs: 2 × 480GB SSD Raid1
  • Network Connections: Omnipath Full Bisection Fat Tree


  • Scratch Storage: 428 TB
  • Additional Node-Local SSD Scratch: 2 TB / Node

Operating System & Software

  • OS: CentOS
  • Batch System: Slurm


You already have an account?

From within the university network (or through VPN), you can access the Bonna Getting Started Wiki providing e.g. information about connecting via ssh, and also the Open OnDemand portal for remote browser-based shell access and Jupyter Notebooks.

You do not have an account or it is expired?

Use the following forms to register, prolongate, or extend (for multiple research group accounts) your Bonna account.

The interim regulations for use of high performance clusters of the University of Bonn can be found here.

This flowchart illustrates the lifecycle of Bonna accounts. More information about research group shares can be found here.


For all technical questions and support requests, please contact:

Personal contact

Avatar Gemuend

André Gemuend

+49 2241 14-4199

Avatar Barbi

Dirk Barbi

+49 228 73-66136

Avatar Kuckertz

Michael Kuckertz

+49 228 73-66125

Wird geladen