Genius hardware

Genius is KU Leuven/UHasselt’s most recent Tier-2 cluster. It has thin nodes, large memory nodes, as well as GPGPU nodes.

Login infrastructure

Direct login using SSH is possible to all login infrastructure without restrictions.

You can access Genius through: login-genius.hpc.kuleuven.be

This will loadbalance your connection to one of the 4 Genius login nodes. Two types of login nodes are available:

  • classic login nodes, i.e., terminal SSH access:
    • login1-tier2.hpc.kuleuven.be
    • login2-tier2.hpc.kuleuven.be
    • login3-tier2.hpc.kuleuven.be
    • login4-tier2.hpc.kuleuven.be
  • login node that provides a desktop environment that can be used for, e.g., visualization, see the NX clients section:
    • nx.hpc.kuleuven.be

Warning

This node should not be accessed using terminal SSH, it serves only as a gateway to the actual login nodes your NX sessions will be running on.

The NX login node will start a session on a login node that has a GPU, i.e., either

  • login3-tier2.hpc.kuleuven.be
  • login4-tier2.hpc.kuleuven.be

Hardware details

  • 230 thin nodes

  • 10 big memory nodes

    • 2 Xeon Gold 6140 CPUs@2.3 GHz (Skylake), 18 cores each
    • 768 GB RAM
    • 200 GB SSD local disk
    • partition bigmem, specific qsub options apply.

  • 22 GPGPU nodes, 96 GPU devices

    • 20 P100 nodes

      • 2 Xeon Gold 6140 CPUs@2.3 GHz (Skylake), 18 cores each
      • 192 GB RAM
      • 4 NVIDIA P100 SXM2@1.3 GHz, 16 GB GDDR, connected with NVLink
      • 200 GB SSD local disk
      • partition gpu, specific qsub options apply.

    • 2 V100 nodes

      • 2 Xeon Gold 6240 CPUs@2.6 GHz (Cascadelake), 18 cores each
      • 768 GB RAM
      • 8 NVIDIA V100 SXM2@1.5 GHz, 32 GB GDDR, connected with NVLink

  • 4 AMD nodes

    • 2 EPYC 7501 CPUs@2.0 GHz, 32 cores each
    • 256 GB RAM
    • partition amd, specific qsub options apply.

The nodes are connected using an Infiniband EDR network (bandwidth 25 Gbit/s), the islands are indicated on the diagram below.

Genius hardware diagram