Thank you Marcella. I have reduced the timestep to 0.25 from 0.5 but the number of convergence steps per SCF run is still too high. To point out this issue, I attached below two following plots for sgcpMD runs with 0.25 of timestep:<div><div>1) The convergence value of the first OT step vs MD step. For example, the bold value as follows:</div><div>***************************</div><div>Step Update method Time Convergence Total energy Change<br> ------------------------------------------------------------------------------<br> 1 OT DIIS 0.10E-01 4.6 <b>0.00034360</b> -7197.3373211744 -7.20E+03<br></div><div> [...]</div><div>***************************<br></div><div>2) Number of steps per SCF run vs MD step.</div><div>I do not know why the convergence value of the first OT step suddenly raises at certain MD steps, even with 0.25 of timestep.</div><div>Any suggestion?</div><div>Thanks a lot for your support.</div><div>Regards</div><div><br></div><div>Onofrio</div></div>
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