Re: [gmx-users] Request on initial velocities

2016-11-11 Thread Mark Abraham
Hi, The vv integrators write velocities on the full step, but those in the .tpr file are interpreted as occurring on the previous half step (which is consistent with how the leap-frog integrators start up). So a half-step of integration (ie. of velocities) takes place before any trajectory output

[gmx-users] Request on initial velocities

2016-11-11 Thread Riccardo Conte
Dear Gromacs users, I am experiencing an issue in trying to perform a dynamics run by feeding in my own starting velocities. My procedure is as in the following: 1) I build my .gro file with the desired starting position and velocities; 2) I choose the flag "no" for the "gen-vel" option in the .