tpbconv(1)

NAME
tpbconv - makes a run input file for restarting a crashed run VERSION 4.6.3

SYNOPSIS
tpbconv -s topol.tpr -f traj.trr -e ener.edr -n index.ndx -o tpxout.tpr -[no]h -[no]version -nice int -extend real -until real -nsteps int -time real -[no]zeroq -[no]vel -[no]cont -init_fep_state int

DESCRIPTION
tpbconv can edit run input files in four 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. (OBSOLETE) by creating a run input file for a continuation run when your simulation has crashed due to e.g. a full disk, or by making a continuation run input file. This option is obsolete, since mdrun now writes and reads checkpoint files. Note that a frame with coordinates and velocities is needed. When pressure and/or Nose-Hoover temperature coupling is used an energy file can be supplied to get an exact continuation of the original run. 3. 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. 4. 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.

FILES
-s topol.tpr Input
 Run input file: tpr tpb tpa -f traj.trr Input, Opt.
 Full precision trajectory: trr trj cpt -e ener.edr Input, Opt.
 Energy file -n index.ndx Input, Opt.
 Index file -o tpxout.tpr Output
 Run input file: tpr tpb tpa

OTHER OPTIONS
-[no]hno
 Print help info and quit -[no]versionno
 Print version info and quit -nice int 0
 Set the nicelevel -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 -time real -1
 Continue from frame at this time (ps) instead of the last frame -[no]zeroqno
 Set the charges of a group (from the index) to zero -[no]velyes
 Require velocities from trajectory -[no]contyes
 For exact continuation, the constraints should not be applied before the first step -init_fep_state int 0
 fep state to initialize from

SEE ALSO
gromacs(7) More information about GROMACS is available at <http://www.gromacs.org/>.