Ini File

The INI file creates a parameter tree to initializate and run the models. The one we use follows the DUNE convention. In short, the data is composed of a key–value pairs on the form key = value.

Comments

Lines starting with a hash # will be ignored

# This is a comment

Value

The value on the key=value pair may be of different kinds. The following is list of possible accepted types

Type	Description
string	Sequence of characters terminated an end of line
float	Decimal number in floating point representation
integer	Integer number
path	String that represent filesystem paths absolute or relative to a program
math_expr	Mathematical Expression

Examples

string = I am a good looking string

float = 1e-2

integer = 1

path = /path/to/directory/

math_expr = pi*sin(x)*sin(y)

Group

A key is a string which may be contained on a common group of parameters by preceding the line with the group name between brackets, or/and by preceding the key by the group name and a dot. Notice that the two forms may be combined.

As an example, the three following ini files, are equivalent

No grouping

# No preceding section

section.subsection.first = 1.0

section.subsection.second = 2.0

Grouping

[section]

subsection.first = 1.0

subsection.second = 2.0

Nested grouping

[section.subsection]

first = 1.0

second = 2.0