Tutorial

This tutorial is intended to get you up and running with CONCEPT, without too many long explanations along the way.

The tutorial consists of multiple sections as listed below. Sections 1–6 cover the basics, with section 6 only being relevant if you work on a remote cluster. You should go through these in order, as they build upon each other.

The remaining sections 7–9 stand on their own, each tackling some advanced subject, all of which may not be of interest to any given user. Though these sections are largely independent, the meaning of newly introduced parameters will be discussed only at their first appearance, across all sections.

• 1. Effortless installation
• 2. Your first simulations
• 3. Working with parameter files
• 4. Mastering gravity
  • 4.1. The PM method
  • 4.2. The P³M method
• 5. Other kinds of output
  • 5.1. Bispectra
  • 5.2. 3D renders
  • 5.3. 2D renders
  • 5.4. Snapshots
• 6. Working on remote clusters
• 7. Beyond matter-only simulations
  • 7.1. Radiation
  • 7.2. Massive neutrinos
  • 7.3. Dynamical dark energy
  • 7.4. Decaying cold dark matter
  • 7.5. Non-linear massive neutrinos
• 8. Bispectra and 2LPT
• 9. Comparison with GADGET-2