Refinement - hyschive/gamer-fork GitHub Wiki

This page describes various grid refinement criteria and interpolation schemes.

Enabling AMR

It only takes three steps to enable AMR:

• Set MAX_LEVEL
• Turn on at least one of the refinement criteria OPT__FLAG_*
• Edit the corresponding input file(s) Input__Flag_{} to specify the refinement thresholds

For details, see the descriptions of various refinement criteria OPT__FLAG_* in [Runtime parameters] Refinement .

Compilation Options

Related options: --nlevel ,   --max_patch  

Runtime Parameters

[Runtime parameters] Refinement
[Runtime parameters] Interpolation

Other related parameters: none

Remarks

Potential outside the isolated boundaries

When adopting the isolated boundary conditions for gravity (i.e., OPT__BC_POT =2), the ghost zones of gravitational potential outside the simulation domain are currently filled out by extrapolation.

Links

• Main page of Runtime Parameters