System Overview

System Overview#

Why use KLC?#

KLC servers

  • Have large amounts of memory, storage, and CPU available

  • Can tackle much bigger computational problems and work with much larger data files

  • Are a shared system, enabling highly collaborative and reproducible work

  • Offer the same, vast library of scientific computing software that Northwestern Quest uses

  • Offer straightforward ways to schedule jobs to run at certain times and to script sequences of tasks, saving efforts and helping with reproducibility

Official website:#

https://www.kellogg.northwestern.edu/academics-research/research-support/computing/kellogg-linux-cluster.aspx

KLC architecture#

  • KLC is a group of 10 high-memory Linux servers, or “nodes,” each of which has 1.5 - 2.0 TB of RAM

    klc0202.quest.northwestern.edu
klc0203.quest.northwestern.edu
klc0301.quest.northwestern.edu
klc0302.quest.northwestern.edu
klc0303.quest.northwestern.edu
klc0304.quest.northwestern.edu
klc0305.quest.northwestern.edu
klc0306.quest.northwestern.edu
klc0307.quest.northwestern.edu
klc0401.quest.northwestern.edu

  • The latest generation of nodes (klc0304 - klc0307, and klc0401) each have 64 CPU cores

  • The next-older generations (klc0202 - klc0303) have 52 CPU cores

KLC policy#

  • Each user is allowed to run processes on up to 24 CPU cores concurrently across all the KLC nodes at normal priority

  • When one goes beyond this limit, all their processes incur a reduction in priority

  • If your work needs more than 24 CPU cores at a time, please email Kellogg Research Support (rs@kellogg.northwestern.edu) to advise you on your options

Contents