I want to ask whether the fix print command in lammps is the result of MC / MD mixed calculation or the result of MD calculation. I calculated the dynamic change of the proportion of solute atoms in a certain area of the cell, but the result output by the fix print command is different from the proportion of atoms displayed in ovito.
The fix print command does what its documentation says it does. It knows nothing about whether it is used in an MD or MD/MC or minimization or other kind of calculation.
It is not clear what you are comparing here, but it most likely means that you are not comparing the same thing.