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GMX-CONVERT-TPR(1) GROMACS GMX-CONVERT-TPR(1)

NAME

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

SYNOPSIS

gmx convert-tpr [ -s [<.tpr>]] [-n [<.ndx>]] [-o [<.tpr>]]
             [ -extend <real>] [-until <real>] [-nsteps <int>]
             [ -[no]zeroq]


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>] (topol.tpr)
Portable xdr run input file
-n [<.ndx>] (index.ndx) (Optional)
Index file

Options to specify output files:
-o [<.tpr>] (tprout.tpr)
Portable xdr run input file

Other options:
-extend <real> (0)
Extend runtime by this amount (ps)
-until <real> (0)
Extend runtime until this ending time (ps)
-nsteps <int> (0)
Change the number of steps
-[no]zeroq (no)
Set the charges of a group (from the index) to zero

SEE ALSO

gmx(1)
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COPYRIGHT

2018, GROMACS development team
June 14, 2018 2018.2