The pARTn input

Fortran namelist

The basic input for pARTn is a file artn.in. This file needs to be present in the running directory, and needs to have that exact name.

File artn.in should contain a Fortran namelist named artn_parameters (case insensitive). That is a block which ends with a forward slash, like:

&artn_parameters

      ! parameter definitions here

/

Each parameter should be given on a separate line, with the form:

<name> = <value>

Where <name> is the case-insensitive name of the paramater, and <value> is the desired value. In case of string parameters, the <value> is case-sensitive.

See also List of ARTn input parameters.

Rules

The usual Fortran rules apply within the namelist structure:

  • lines starting with ! are comments;

  • whitespace is ignored;

  • valid specifications of real values:

forc_thr = 0.01,
eigval_thr = -1e-2,
push_step_size = 3.0d-1

  • specification of arrays:

! full array:
nperp_limitation = 4, 12, 16, 22, 25

! component of a 2D array:
push_add_const(:,1) = 1.0, 1.0, 0.0, 30.0

  • specification of string values:

! double quote marks
engine_units = "QE"

! single quote marks
struc_format_out = 'xyz'

  • details such as commas at the end of each line might depend on your Fortran compiler.