Jean-Jacques Wasbauer wrote
> I am about to develop a code in F90 that needs to follow quality
> requirements and configuration management. We wonder what is the
> best F90 organization for F90 software development in terms of
> module definition. To be clearer we wonder if encapsulating each
> subroutine by a module will be a valuable software organization. On
> one hand it may avoid very long modules containing a lot of source
> codes lines (difficulties to find a routine in a module), it will
> fasten compilation (only relevant modules will be compiled and not
> the all bunch of routines contained in a module when slightly
> modified), on the other hand the information is dispatched in
> several files.
>
> I would like to have your opinion based on your development
> experience.
I use Fortran to simulate dynamic systems, i.e. systems involving
ordinary differential equations. For me a new project means a new
system, therefore I have to change parts of my program frequently.
Under those circumstance, here is the way I have organized my program.
(*) (Four) groups of modules. Naming convention: the first letter
in the file/module name (followed by _) identifies the group.
(*) Every group contains more Fortran modules. Every module
correspond one to one to a file.
File_name = module_name + ".f90"
(*) Every module contains one or (generally) more
subroutines/functions. In other words every
subroutine/function is contained in a module.
This allows the compiler to check the consistency.
I don't use include. Actually, I have purged my program from
non-standard/old constructs using Lahey Essential Fortran 90 compiler.
(a free basic version is available on the web from Lahey). Benefit:
the code is more readable, more consistent, portable. I recommend this
procedure as a test of some aspects of code quality.
I hope it helps. Cheers, Vittorio
-------------------------------------------------
Dr. Vittorio G. Caffa Tel.: (089) 6088-2054
IABG, Abt. AF 11 Fax: (089) 6088-3990
Einsteinstr. 20 E-Mail: [log in to unmask]
D-85521 Ottobrunn
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