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

230 thin nodes
- 86 skylake nodes
  2 Xeon Gold 6140 CPUs@2.3 GHz (Skylake), 18 cores each
  
  192 GB RAM (memory bandwidth and latency measurements)
  
  200 GB SSD local disk
  
  feature skylake
- 144 cascadelake nodes
  2 Xeon Gold 6240 CPUs@2.6 GHz (Cascadelake), 18 cores each
  
  192 GB RAM (memory bandwidth and latency measurements)
  
  200 GB SSD local disk
  
  feature cascadelake
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
  
  200 GB SSD local disk
  
  partition gpu, specific qsub options apply.
4 AMD nodes
- 2 EPYC 7501 CPUs@2.0 GHz, 32 cores each
- 256 GB RAM
- 200 GB SSD local disk
- partition amd, specific qsub options apply.

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