[FLASH-USERS] Where to compile new programs and modules in FLASH

[espresso]

Hello,

I am new to Flash so I apologize for the convoluted nature of this question. I 
am trying to add a new 
nuclear reaction network to Flash and I am starting with the aprox13 code as a 
model. I am currently 
modifying FLASH2.5/source/source_terms/burn/aprox13_modified/net.F90.

I need net.F90 to call a function called read_nuclear_data and use a module 
called nuclear_data that 
sits in a program called data.f in the same lowest directory with net.F90. 
(not the stub net.F90 in burn, 
but the net.F90 that sits in aprox13_modified under burn)
I thought that modifying the Makefile in FLASH2.5/source/source_terms/burn, 
where net.F90’s parent 
stub gets instructed to compile would disrupt the modular nature of the 
program, so I wrote a new 
Makefile in  “~burn/aprox13_modified” to compile data.f . This works if I only 
want to do operations 
within data.f , however when I try to use modules in data.f  in the lowest 
net.F90 I get a compiler error 
that states, “ Error in opening the compiled module file.  Check INCLUDE 
paths.   [NUCLEAR_DATA]”. I’m 
not sure what “Check INCLUDE paths” means in this context.

 The problem may be that data.f needs to compile before net.F90, but I can’t 
figure out how to do this 
and preserve modular structure of Flash. Should I move data.f up a directory 
into Burn and compile it 
using commands in the Makefile there, where net.F90’s parent stub is compiled 
? Is there a way that I 
can do it through a Makefile in the aprox13_modified directory below Burn 
using “INCLUDE paths” or 
other means?

I do have a flash2 manual and I have dug though it to frustration. On page 44 
it tells me to “consult the 
authors of FLASH” when attempting to add new solvers or physics so I am 
following that suggestion 
now.

Any help would be appreciated.

Thank you,

Suzanne Parete-Koon