Hardware
Currently available

Login Nodes Currently Available

(as of Oct 2021)

  • lcluster13.hrz.tu-darmstadt.de + GPU NVIDIA Tesla T4
  • lcluster14.hrz.tu-darmstadt.de
  • lcluster15.hrz.tu-darmstadt.de + GPU NVIDIA Tesla T4
  • lcluster16.hrz.tu-darmstadt.de
  • lcluster17.hrz.tu-darmstadt.de + GPU NVIDIA Tesla T4
  • lcluster18.hrz.tu-darmstadt.de
  • lcluster19.hrz.tu-darmstadt.de + GPU NVIDIA Tesla T4
  • lcluster20.hrz.tu-darmstadt.de [reserved]
    • 2x Xeon-AP, 96 CPU cores (AVX512)
    • 768 GByte RAM, RedHat Enterprise Linux 8.x

All login nodes above are part of the Lichtenberg High Performance Cluster.

If you cannot login with an otherwise valid HLR account, follow the instructions in our FAQ .

The current number of CPU cores and accelerators (GPUs) available and allocated (occupied) can always be listed with the csinfo command.

Phase I of Lichtenberg II

The compute resources of Cluster Stage 1 of Lichtenberg II (avx512) are almost all available for regular use.

Phase II of Lichtenberg I

Since 2021-05-31, the older Lichtenberg I (avx, avx2) has been decommissioned.

Please make sure not to have 

-C avx<2>

in your job scripts any longer, as such jobs would never start to run.

The only exception would be GPU jobs intended to be run on the DGX accelerator nodes , as their CPUs are only avx2 capable.