NAME

       gmx-convert-tpr - Make a modifed run-input file

SYNOPSIS

          gmx convert-tpr [-s [<.tpr/.gro/...>]] [-n [<.ndx>]]
                       [-o [<.tpr/.gro/...>]] [-extend <time>] [-until <time>]
                       [-nsteps <int>]

DESCRIPTION

       gmx convert-tpr can edit run input files in three ways.

       1.  by  modifying  the number of steps in a run input file with options -extend, -until or
       -nsteps (nsteps=-1 means unlimited number of steps)

       2. by creating a .tpx file for a subset of your original tpx file, which  is  useful  when
       you  want  to remove the solvent from your .tpx file, or when you want to make e.g. a pure
       Calpha .tpx file.  Note that you may need to use -nsteps -1 (or similar) to  get  this  to
       work.  WARNING: this .tpx file is not fully functional.

       3.  by  setting  the  charges of a specified group to zero. This is useful when doing free
       energy estimates using the LIE (Linear Interaction Energy) method.

OPTIONS

       Options to specify input files:

       -s [<.tpr/.gro/...>] (topol.tpr)
              Run input file to modify: tpr gro g96 pdb brk ent

       -n [<.ndx>] (index.ndx) (Optional)
              File containing additional index groups

       Options to specify output files:

       -o [<.tpr/.gro/...>] (tprout.tpr) (Optional)
              Generated modified run input file: tpr gro g96 pdb brk ent

       Other options:

       -extend <time> (0)
              Extend runtime by this amount (ps)

       -until <time> (0)
              Extend runtime until this ending time (ps)

       -nsteps <int> (0)
              Change the number of steps remaining to be made

SEE ALSO

       gmx(1)

       More information about GROMACS is available at <http://www.gromacs.org/>.

COPYRIGHT

       2022, GROMACS development team