Cluster oberon.it.jyu.fi (2019 - )

40 nodes : 2 CPU's per node, 20 core Intel Xeon Gold 6148 CPU @ 2.40GHz
40 cores per node

Local cluster: 30 nodes, 1200 cores
Grid:               10 nodes,   400 cores
Total:                                1600 cores
 

376 GB memory per node, about 9 GB memory per core

Operating system : CentOS Linux release 7.9.2009 (Core)
Batch job system : Slurm

Cluster puck.it.jyu.fi (2016 - )

44 nodes : 2 CPU's per node, 12 core Intel Xeon CPU E5-2680 v3 @ 2.50GHz
24 cores per node

Local cluster:   36 nodes, 864 cores
Grid:                   8 nodes, 192 cores
Total:                                1056 cores

188 GB memory per node, about 8 GB memory per core

Operating system : CentOS Linux release 7.9.2009 (Core)
Batch job system : Slurm

Puck and oberon are part of the FGCI grid, consortium of ~10 Finnish universities.
FGCI stands for The Finnish Grid and Cloud Infrastructure

Joint facility of two faculties :

• Faculty of Mathematics and Science
  * Biological and Environmental Science
  * Chemistry
  * Mathematics and Statistics
  * Physics (nominally the owner of the cluster)

• Faculty of Information Technology
  * Computer Science and Information Systems (Tietojenkäsittelytieteen Laitos)
  * Mathematical Information Technology (Tietotekniikan Laitos)

Link: short instructions for JYU users

Link: CSC fgci-user-guide

Cluster electra.chem.jyu.fi (2011 - )

Until 31.12.2016 part of FGI, The Finnish Grid Infrastructure

Compute nodes:
HP SL390s G7 112 Intel Xeon X5650@2.67GHz (6 cores)
=> 672 cores

GPGPU nodes:
8 Nvidia Tesla M2090 GPGPU (512 CUDA cores)
=> 4096 CUDA cores

Disk:
24 TB disk (RAID 6)

Two ways You can use these computing resources:

• Use the local cluster (that is, login to electra and submit jobs)

  • The JYU login node is electra.chem.jyu.fi .

  • You need a JYUNET user id - if you work for the University of Jyväskylä you probaably have one.

  • To get an account to the electra, please send your public ssh key to vesa.apaja@jyu.fi.

  • Why ssh keys? You don't need a password to log in to electra.chem.jyu.fi, the ssh agent takes care of your identification.

  • Instructions how to create the ssh-key:

  • In a Windows machine

  • In a linux machine

  • Linux short instructions: send me file $HOME/.ssh/id_rsa.pub if it doesn't exist, type in terminal "ssh-keygen".

  • Using a passphrase is recommended. The passphrase can be short and simple, it just protects your ssh key.

• Use the grid (send grid jobs from your workstation to any of the 10 FGI machines)

  • Request a personal grid certificate

  • Request a Virtual Organisation membership

  • Install the Nordugrid ARC Client to your workstation

  • These are all fairly simple tasks. Detailed instructions are here

Cluster user guides:

• User instructions (CSC)

• Directly download FGI User Guide (pdf)

Other machines

• Physics department server calc.phys.jyu.fi (2011->)

  Dell PowerEdge 910 4 CPU Intel(R) Xeon(R) CPU L7555 @ 1.87GHz 8 cores
  => 32 cores in total 16 threads
  => 64 threads
  125 GB RAM

  
  
  
  De-commisioned machines :

  • opaali (2006->2011) MGRID cluster

  • linuxfs (left August 2011)

  • SGI Altix (batman and joker) (left June 2011)