<div dir="ltr">Dear all,<div><br></div><div>while doing my BO molecular dynamic simulations I realized that sometimes the scf iteration doesn't converge in 100 or even 200 steps. My job approach is to resubmit every n time steps restarting from the previous well completed one. Of course if the previous one did not converged also the restart will not and so on. i also realized as expected that if instead of restarting my job from the previous restart file I do a 1 time step job "restart=from_scratch" exporting manually last converged geometry and temperature it dose converge and then I can do other several time steps without any problem. I believe this is due to the extrapolation of wave function and potential at the second order that i am using along the dynamics </div>
<div>There should be a way to automatically force the pw.x to reoptimize from scratch the wave function let's say every M steps.</div><div><br></div><div>Could any of you give me some advice on that?</div><div><br></div>
<div>thank you in advance</div><div><br></div><div>Vincenzo <br></div></div>