Hard-Coded Parameters in JOREK

Physics Model

The first “hard-coded parameter” is the JOREK physics model number. It is set in the Makefile.inc file.

The other hard-coded parameters are set by the mod_parameters.f90 file located in the model directory models/modelXXX/:

Parameter	Description
n_tor	Number of toroidal mode numbers (cos+sin counted separately)
n_period	Periodicity (n_period=1 means full torus)
n_plane	Number of toroidal planes; n_plane must be >= 2*(n_tor-1)
n_vertex_max	do not change
n_nodes_max	Maximum number of grid nodes
n_elements_max	Maximum number of grid elements (2D Bezier)
n_boundary_max	Maximum number of boundary elements (1D Bezier)
n_pieces_max	Maximum number of pieces in a flux surface representation

When changing hard-coded parameters, you should always execute:

make clean

When changing model you should execute:

make cleanall

Script config.sh

The script

./util/config.sh

called from the trunk allows to show the values of the hard-coded parameters. You will get an output like this:

=======================
Makefile.inc:
-----------------------
  model303
  n_tor = 1
  n_period = 1
  n_plane = 8
  n_vertex_max = 4
  n_nodes_max = 60001
  n_elements_max = 60001
  n_boundary_max = 1001
  n_pieces_max = 6001
=======================

The same script can also modify the hard-coded parameters:

./util/config.sh model=303 n_tor=3 n_period=8 n_plane=8

Important: When changing the model with the script, make sure that the other parameters are correct as well, since they are set separately for each model in the model-specific mod_parameters.f90 files.