Technical Information

This topic lists relevant technical information.

Nodes

Currently the cluster contains the following nodes:

• 32 GPU nodes with
  • 8 x NVidia GTX 1080 Ti
  • 2 x 10 core Xeon E5-2630 @ 2.2GHz
  • 256GB RAM
  • 480GB SATA SSD

Storage

A dedicated Ceph cluster provides all the storage:

• 5 servers with
  • 2 x 6 core Xeon 3204 @ 1.9 GHz
  • 16 GB RAM
  • 240 GB SATA SSD

The following storage devices are used for providing storage:

• 3 x 12.8 TB Samsung PM1735
  • 8000 MB/s read
  • 3800 MB/s write
  • 1500000 IOPS read
  • 250000 IOPS write

Triple redundancy is used for improved resilience and read speed, resulting in 12.8 TB effective storage capacity. Performance is currently limited by the network and allows concurrent reads with 3 GB/s from the nodes and writes with 1 GB/s.

Login Nodes

Two login nodes are available to students to prepare and start jobs:

• 1 node (student-cluster.inf.ethz.ch) with
  • 2 x 8 core Xeon E5-2660 @ 2.20GHz
  • 256 GB RAM
  • 480 GB SATA SSD
• 1 node (student-cluster2.inf.ethz.ch) with
  • 2 x 6 core Xeon E5-2620 v2 @ 2.10GHz
  • 64 GB RAM
  • 480 GB SATA SSD

On both login nodes users are restricted to 2 cores and 8 GB of RAM.