[gmx-users] modify bondfree.c and recompile

[Mark Abraham]

Jian Zou wrote:
> Hi,
> 
> If I only change some functional form in bondfree.c (the number of
> parameters are kept the same), can I just do "make mdrun" and "make
> install-mdrun" to recompile from the source?
> 
> I cannot find the dependency between the source files and the Gromacs
> utilities (grompp and mdrun).

It's there in the Makefiles, but you don't need to know about it. Just 
use make (or just make mdrun) from the top-level source directory.

> I compare the tpr file generated before and after the change and they
> are the same. Therefore it seems to me that grompp does not read the
> formulation of bonded interactions, am I right?

grompp isn't changing, so its output is the same. All it does is 
interpret the contents of your .top file and tell mdrun which function 
to use.

Mark