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Chombo-Discharge vs ctseg

Both stand on physics simulation software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.

Chombo-Discharge

Free plan Linux

Chombo-Discharge provides a free, extensible plasma simulation code with adaptive grids, multiphysics options, parallel execution, and restartable I/O. Its Linux build requirements and research-oriented documentation demand technical preparation.

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ctseg

Free plan LinuxMacSelf-hosted

ctseg provides a focused solver for supported quantum-impurity interaction models and measurements. Its single-orbital spin-spin restriction is important when planning multi-orbital calculations.

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The facts

Chombo-Dischargectseg
Free planYesYes
Open sourceNot publishedNot published
Runs onLinuxLinux, Mac, Self-hosted
Lowest paid planFree or on requestFree or on request
Plans published11
MakerNot publishedNot published
Websitechombo-discharge.github.iotriqs.github.io
On physics simulation software#48 of 89#52 of 89

Chombo-Discharge: what it does well

  • Simulates two- and three-dimensional plasmas
  • Adaptive mesh refinement included
  • Supports OpenMP and MPI
  • Checkpoint-restart for fluid and particles
  • Free and usable offline

What to know first

  • Linux workstation build required
  • Requires LAPACK and BLAS
  • No time subcycling
  • Documentation describes an evolving research code

ctseg: what it does well

  • Free software with offline access
  • Supports retarded density-density interactions
  • Measures multiple Green’s-function observables
  • Docker and package installation options
  • Self-hosted deployment is available

What to know first

  • Spin-spin expansion supports one orbital only
  • Multiple orbitals restrict expansion choices
  • Source builds require matching TRIQS versions

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