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About Ponyland

Ponyland is the informal name (officially Equestria) of the Computer Cluster for CLS. The cluster is used in the following ways:

  • Store databases and corpora
  • Run experiments
  • Parallel processing of huge datasets
  • Provide a Linux/Unix environment to users
  • Host several websites for CLS projects and affiliates

This service is provided for employees of CLS, affiliated guest researchers and student assistants.


The cluster is hosted by C&CZ at Faculty of Science (Huygensgebouw). Technical maintenance is provided by FNWI and user-support by Wessel Stoop.

Hardware specifications

Hardware was installed in June 2012. The cluster consists of several rack-mounted servers, with the following specifications:

  • 128GB, 192GB, 256GB or 512GB RAM, see below
  • 2CPUs with 8 cores each and hyperthreading (32 virtual cores) (Intel® Xeon® Processor E5-2660)
  • Local hard disks 2TB (2x2TB Mirror-RAID)
  • Network disk (RAID, on derpy):


Derpy & Spitfire

List of dedicated servers

AddressRAMLocal disk spaceCPU threadsPurpose webserver dataserver 515G 3.5T 32 webserver, special purpose, portal 504G 2.9T 56 'the new Applejack', 'Applejack 2',future replacement for Applejack

Ponies (computing nodes)

List of Pony-servers (computing nodes)

AddressBoring nameRAMLocal disk spaceCPU threadsGPU NVIDIA Tesla M40 NVIDIA Tesla M40

Please avoid Fancypants if you don't need the memory.

Available software

Disk Arrangement

Usage guidelines

wiki/ponyland/about.txt · Last modified: 2016/11/25 14:21 by Wessel Stoop