Hydra hardware¶
The VUB Hydra cluster is an heterogeneous cluster with a mixture of nodes with varied hardware. The majority of nodes are non-GPU nodes for generic multi-purpose compute, they are distributed in partitions depending on their CPU microarchitectures and network interconnects. The cluster also contains a number of nodes with NVIDIA GPUs, which are also distributed in partitions depending on their GPU generation.
Hardware details¶
Generic nodes
Slurm partition |
nodes |
processors per node |
memory |
local disk |
network |
|---|---|---|---|---|---|
ivybridge_mpi |
16 |
2x 10-core INTEL E5-2680v2 (ivybridge) |
256 GB |
900 GB |
QDR-IB |
broadwell |
27 |
2x 14-core INTEL E5-2680v4 (broadwell) |
256 GB |
1 TB |
10 Gbps |
broadwell_himem |
1 |
4x 10-core INTEL E7-8891v4 (broadwell) |
1.5 TB |
4 TB |
10 Gbps |
skylake |
22 |
2x 20-core INTEL Xeon Gold 6148 (skylake) |
192 GB |
1 TB |
10 Gbps |
skylake_mpi |
31 |
2x 20-core INTEL Xeon Gold 6148 (skylake) |
192 GB |
1 TB |
EDR-IB |
GPU nodes
Slurm partition |
nodes |
GPUs per node |
GPU memory |
processors per node |
CPU memory |
local disk |
network |
|---|---|---|---|---|---|---|---|
kepler_gpu |
6 |
2x Nvidia Tesla K20Xm (kepler) |
6 GB |
2x 10-core INTEL E5-2680v2 (ivybridge) |
128 GB |
900 GB |
QDR-IB |
pascal_gpu |
4 |
2x Nvidia Tesla P100 (pascal) |
16 GB |
2x 12-core INTEL E5-2650v4 (broadwell) |
256 GB |
2 TB |
10 Gbps |
ampere_gpu |
6 |
2x Nvidia A100 (ampere) |
40 GB |
2x 16-core AMD EPYC 7282 (zen2) |
256 GB |
2 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.be
Hardware specs:
2x 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 specific to the VUB cluster, please consult the documentation at:
For question or problems, please contact the VUB HPC team: hpc@vub.be