2.4.1. Tier-2 access#

Currently, Genius and wICE are the two Tier-2 clusters in production at KU Leuven. The access to both machines is possible

  • either via the Genius login nodes (see below), as wICE itself has no dedicated login node

  • or via the Open On-Demand on your web browser

2.4.2. Login infrastructure#

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

You can access the KU Leuven Tier-2 either through login.hpc.kuleuven.be or 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 on Genius that can be used for, e.g., visualization, see the NX clients section:

    • nx.hpc.kuleuven.be


      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., one of

      • login3-tier2.hpc.kuleuven.be

      • login4-tier2.hpc.kuleuven.be