LMDZ Coding conventions and guidelines

Generalities

• fortran keywords in fortran files will be in UPPER case

Naming of modules

Module names should have a lmdz_ prefix. For example, the file lmdz_wave.F90 would be a module containing one or more subroutines:

 1   MODULE lmdz_wave
 2   IMPLICIT NONE
 3 
 4   CONTAINS
 5 
 6   SUBROUTINE wave_init (...)
 7   ...
 8   END SUBROUTINE wave_init
 9 
10   SUBROUTINE wave_calc (...)
11   ...
12   END SUBROUTINE wave_calc
13 
14   END MODULE lmdz_wave

Beware: the renaming of already existing parametrization modules (to the lmdz_ format) should only occur once they have been re-written to adhere to the coding conventions for parametrizations (see below) as we use it as a marker that the recoding work on that particular parametrization has been done.

Coding conventions for parametrizations

Following different discussions among LMDZ developpers (summarized in one of our weekly meetings here, the following coding rules apply to the development of LMDZ parametrizations: