<HTML><BODY><br><p><a href="http://manual.gromacs.org/documentation/2018-latest/onlinehelp/gmx-convert-tpr.html">http://manual.gromacs.org/documentation/2018-latest/onlinehelp/gmx-convert-tpr.html</a> : <br>gmx convert-tpr [-s [<.tpr>]] [-n [<.ndx>]] [-o [<.tpr>]]<br> [-extend <real>] [-until <real>] [-nsteps <int>]<br> [-[no]zeroq]</p><p><br>http://manual.gromacs.org/documentation/2018-latest/user-guide/managing-simulations.html :<br>...<br>Restarts without checkpoint files¶<br>It is possible to perform an exact restart a simulation if you lack a checkpoint file but <br>have a matching pair of frames in a trr and edr file written by gmx mdrun. To do this, use</p><p>gmx convert-tpr -s old.tpr -e matching.edr -t matching.trr -o new.tpr</p><p>But in 2018 release no options '-e' and '-t'!</p><p>Rhetorical question.<br>For what it was necessary to cripple this very convenient team?<br>Many user scripts on it were tied.</p><p> </p><br><br></BODY></HTML>