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For very computationally and memory intensive computations, members of Kiel University can use the HLRN Supercomputing System in the scope of the North-German Supercomputing Alliance. The HLRN Supercomputing Alliance was formed in 2001 and is a joint project of the seven North-German states Berlin, Brandenburg, Bremen, Hamburg, Mecklenburg-Vorpommern, Niedersachsen and Schleswig-Hostein.

The HLRN alliance jointly operates a distributed supercomputer system hosted at the sites Georg-August-Universität Göttingen und Zuse-Institut Berlin (ZIB). In September 2018 the HLRN-IV system phase 1 from the company Atos/Bull was put into operation. After the successful installation of phase 2 the total HLRN-IV system holds more than 200,000 cores with a total peak performance of about 16 PFlop/s.

Lise at ZIB

The HLRN complex in Berlin at ZIB is named after Lise Meitner and it conatins 1270 compute nodes with 121,920 compute cores.

HLRN-IV system Lise in Berlin, photo: ITMZ | University Rostock.

• 1270 compute nodes
  • 1236 nodes with 384 GB memory (standard node)
  • 32 nodes with 768 GB memory (large node)
  • 2 nodes with 1.5 TB memory (huge node)
  • per node 2 CPUs + 1 Intel Omni-Path host fabric adapter
  • per CPU 1 Intel Cascade Lake Platinum 9242 (CLX-AP), 48 cores
• Omni-Path interconnect configuration
  • 2 x 1162 port OPA100 director switches
  • 56 x 48 port edge switches
  • fat tree topology
  • 14 TB/s bisection bandwidth
  • 1.65 μs maximum latency
• 8 login nodes
  • per node 2 CPU with 384 GB memory
  • per CPU 1 Intel Cascade Lake Silver 4210 (CLX), 20 nodes

Emmy in Göttingen

At the site Göttingen University the HLRN system phase 1 named Emmy (for Emmy Noether) is in operation since October 2018. In October 2020 the second phase was added.

The compute nodes of HLRN-IV phase 1 in Göttingen.

• 974 nodes added in phase 2
  • 956 nodes with 384 GB memory (standard node)
  • 16 nodes with 768 GB memory (large node)
  • 2 nodes with 1,5 TB memory (huge node)
  • per nodes 2 CPUs and 1 Intel Omni-Path host fabric adapter
  • per CPU 1 Intel Cascade Lake Platinum 9242 (CLX-AP), 48 cores
• 448 compute nodes of phase 1
  • 432 nodes with 192 GB memory (medium node)
  • 16 nodes with 768 GB memory (large node)
  • per node 2 CPUs and 1 Intel Omni-Path host fabric adapter
  • per CPU 1 Intel Skylake Gold 6148, 20 cores
  • 1 x 480 GB SSD hard disk
• 1 GPU node
  • 2 x Intel Skylake Gold 6148 CPUs (40 cores per nodes)
  • 192 GB Memory
  • 1 x 480 GB SSD hard disk
  • 1 x Intel Omni-Path host fabric adapter
  • 4 x NVIDIA Tesla V100 32GB

Contact persons at Kiel University

If you are interested in using the HLRN, the following employees of the Computing Centre will provide you with further information:

• Dr. Karsten Balzer, balzer@rz.uni-kiel.de, phone: 880-4659
• Dr. Simone Knief, knief@rz.uni-kiel.de, phone: 880-2766