How to connect


Researchers of VUB can connect to Hydra with a VSC account:

  • <VSC-ID>

Please follow the instructions in the VSC docs on Logging in to a cluster corresponding to your operating system.


For increased security, an additional firewall layer has been added to all VSC clusters. For the time being, most users located in Belgium will not notice any difference, but if you’re located abroad you’ll have to take an additional step in order to access Hydra. For more info, see the VSC docs on the Additional firewall layer.


Connecting to Vega and any other CECI cluster is restricted via a ULB ssh gateway using your CECI account.

Follow the instructions on the CECI website:

Only if you are outside of Belgium you will need to use and enable the ULB VPN in order to access this gateway. Authenticate with your NetID on to obtain the VPN client and instructions.

Other VSC Tier-2 sites

Users with a VSC account (VSC-ID) can also run their jobs on the clusters of the other Flemish institutions that are part of the VSC. All VSC sites use the same PBS job submission system, but their configuration varies slightly. Please contact the respective HPC teams for help using their clusters.

For hardware details, see the VSC docs on Tier-2 hardware

Note: usage of the Tier-2 clusters at the HPC sites UGent and UAntwerpen is free, whereas usage of the KU Leuven/UHasselt site requires purchase of credits.

VSC Tier-1

Users with a VSC account (VSC-ID) and Tier-1 project grant or starting grant can connect to VSC Tier-1 via one of two login nodes:

  • <VSC-ID>

  • <VSC-ID>

Follow the instructions on the VSC website for obtaining a Tier-1 grant:

CECI Tier-1

Users with a CECI account (CECI-ID) and Tier-1 project grant can connect to CECI the Tier-1 cluster Zenobe.

Zenobe is accessible directly only from a CECI university network:

  • <CECI-ID>

From other locations, access to Zenobe is possible through a gateway:

  • <CECI-ID>

From there, users can connect to ZENOBE:

  • <CECI-ID>@zenobe

Follow the instructions on the CECI website: