Hydra hardware

The VUB Hydra cluster contains a mix of nodes containing Intel processors with different CPU microarchitectures and different interconnects in different sections of the cluster. The cluster also contains a number of nodes with NVIDIA GPUs.

Hardware details

nodes processor memory disk network extra
11 2x 10-core INTEL E5-2680v2 (ivybridge) 128 GB 900 GB QDR-IB  
20 2x 10-core INTEL E5-2680v2 (ivybridge) 256 GB 900 GB QDR-IB  
6 2x 10-core INTEL E5-2680v2 (ivybridge) 128 GB 900 GB QDR-IB 2x Tesla K20Xm NVIDIA GPGPUs 6Gb/node (kepler)
27 2x 14-core INTEL E5-2680v4 (broadwell) 256 GB 1 TB 10 Gbps  
1 4x 10-core INTEL E7-8891v4 (broadwell) 1.5 TB 4 TB 10 Gbps  
4 2x 12-core INTEL E5-2650v4 (broadwell) 256 GB 2 TB 10 Gbps 2x Tesla P100 NVIDIA GPGPUs 16 Gb/node (pascal)
1 2x 16-core INTEL E5-2683v4 (broadwell) 512 GB 8 TB 10 Gbps 4x GeForce 1080Ti NVIDIA GPUs 12 Gb/node (geforce)
22 2x 20-core INTEL Xeon Gold 6148 (skylake) 192 GB 1 TB 10 Gbps  
31 2x 20-core INTEL Xeon Gold 6148 (skylake) 192 GB 1 TB EDR-IB  

Access restrictions

Access is available for faculty members, students (master’s projects under faculty supervision), and researchers of the VUB, as well as VSC users of other Flemish universities.

The cluster is integrated in the VSC network and runs the standard VSC software setup.

Jobs can have a maximal execution wall time of 5 days (120 hours).

Login infrastructure

Users with a VSC account (VSC-ID) can connect to Hydra via the following hostname:

  • <VSC-ID>@login.hpc.vub.ac.be

Hardware specs:

  • Intel Skylake (Xeon Gold 6126) - 24 cores in total (fair share between all users)
  • 96GB memory (maximum per user: 12GB)
  • 10GbE network connection
  • Infiniband EDR connection to the storage

User documentation

For documentation on Hydra usage, consult the documentation website:


For question or problems, contact the VUB HPC team: hpc@vub.ac.be