Xtc-precision and ndec

GROMACS version:2020.5
GROMACS modification: No

Hi All,

I am trying to understand the mdp option xtc-precision. If I set xtc-precision to 5, will the precision be 0.00001 nm?

Also, when processing the trajectories using trjconv, if I set the flag ndec to 5, will the output xtc retain the same precision as in the original xtc (assuming that xtc-precision = 10000, and assuming that the above interpretation is correct)?

I would really appreciate help from the community!


Tej S. Choksi

Assistant Professor
School of Chemical and Biomedical Engineering
Nanyang Technological University, Singapore
Block N1.2, B1-18, 62 Nanyang Drive
Singapore 637459, Office: +65 6316 8940