Box size fluctuations during NPT are normal, while their degree may or
may not be. In any case, your questions at the moment aren't about
Gromacs. They suggest that you need to get a better idea on what
barostats are, what they do, how they work, etc, etc.
Alex
On 9/24/2017 10:46 PM, Dilip H
Hello,
I have ran an NPT simulation followed by NPT Production MD for different
concentrations, and after that, if i check the final .gro files of npt.gro
and nptmd.gro (the production md .gro file), the box length of nptmd.gro
is still fluctuating, for some concentrations the nptmd.gro box length
