Lichtenberg I Phase I

Hardware of Phase I of the Lichtenberg I Cluster

(operative from 2013 to April 2020)

Login

(operative since 2013)

4 login nodes

  • 4x processors “Intel® Xeon® processor E5-4650”
    • Each processor consists of 8 cores
    • Hyperthreading is off
    • There is an AVX unit per core
  • Overall 32 cores per node
  • Processor clock is 2,7 GHz – with a turbo up to 3,3 GHz (if you use less cores)
  • node memory expansion: 128 GByte per node
  • network connection: 1x FDR-10 InfiniBand and 2x 10GBit-Ethernet
  • Hostnames: hla0001 … hla0004
  • Accessible from outside with: lcluster1 … lcluster4 (if necessary, append .hrz.tu-darmstadt.de)

At 2020-04-27, the entire phase I of Lichtenberg 1 has been switched off, except for the GPU section with Nvidia K20m cards:

MPI – Section – Offline since April 2020

MEM – Section – Offline since April 2020

ACC – Section GPUs – Offline since May 2021

ACC – Section PHIs – Offline since April 2020