Thinking7 hardware

Thinking is KU Leuven/UHasselt’s older Tier-2 cluster. It has thin nodes, as well as GPGPU nodes.

Login infrastructure

You can access Thinking by using

• login-thinking.hpc.kuleuven.be

This will loadbalance your connection to one of the 4 Thinking login nodes

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

• Two ivybridge login nodes for SSH access are available.

  Note

  These are ivybridge nodes, so for better performance, build your software on a haswell compute node.

  • login5-tier2.hpc.kuleuven.be
  • login6-tier2.hpc.kuleuven.be

• One haswell login node for SSH access and one for TurboVNC access.

  • login7-tier2.hpc.kuleuven.be
  • login8-tier2.hpc.kuleuven.be

Hardware details

• 144 haswell nodes
  • 2 Xeon E5-2680 v3 CPUs@2.5 GHz, 12 cores each
  • 64 GB RAM (48 nodes) / 128 GB RAM (96 nodes) (memory bandwidth and latency measurements)
  • feature haswell
• 5 GPGPU nodes
  • 2 Xeon E5-2650 v3 CPUs@2.3 GHz, 10 cores each
  • 64 GB RAM
  • 2 NVIDIA K40c@750 MHz, 12 GB GDDR
  • partition gpu
  • feature K40c

In the older partition of the cluster, nodes are connected via a QDR infiniband interconnect, while the newer partition has a faster FDR interconnect. See the diagram below.

A quick start guide is available to get you started on submitting jobs to the updated ThinKing cluster.