<div dir="ltr">Hi sumit,<div><br></div><div>To know if a MD is equilibrated, you have to check the .ener file, plotting the temperature, energies and conserved quantity against time or step number.</div><div>I do not know if you will use the same computer for the 60000 steps production dynamic... but, check it, because yo need 5 minutes per step, then 60000 frames need more than 200 days.</div><div><br></div><div>Another thing is, if you want to compute the density of vibrational states (power spectra), you just need the .xyz file and the .vel file. If you want to compute the IR spectra, you need to save the density for each step (many GB), the bbq format created by Brehm is necessary to manage those files, and travis is necessary to compute te spectra.</div><div><br></div><div>Regards - Lucas Lodeiro</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">El mié., 28 oct. 2020 a las 7:05, sumit agrawal (<<a href="mailto:sumitag...@gmail.com">sumitag...@gmail.com</a>>) escribió:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">Hii,<div><br></div><div>I am trying to calculate bulk phase vibrational spectra, for this I am following a tutorial given on cp2k site. I use input files which are given on "<a href="http://brehm-research.de/files/spec_tutorial_2018.pdf" target="_blank">brehm-research.de/files/spec_tutorial_2018.pdf</a>". </div><div>I have done "massive equilibration (2000 steps, 1ps) and global equilibration (5000 steps, 2.5ps)" for a given coordinate file. I just want to calculate IR spectra. So for this should i need to perform a production run (60000 steps, 30ps) ?. </div><div><br></div><div>I have one more question: I am attaching the input and out file for both the calculations. Did my jobs converge?</div><div><br></div><div>Thanks, </div><div>sumit</div><div><br></div><div><br></div><div><br></div></div>
<p></p>
-- <br>
You received this message because you are subscribed to the Google Groups "cp2k" group.<br>
To unsubscribe from this group and stop receiving emails from it, send an email to <a href="mailto:cp...@googlegroups.com" target="_blank">cp...@googlegroups.com</a>.<br>
To view this discussion on the web visit <a href="https://groups.google.com/d/msgid/cp2k/CALSDoYY2dCYw%2BmJHBzH5QfCTcYiOr-MWCEgVykDActo5ujGg0w%40mail.gmail.com?utm_medium=email&utm_source=footer" target="_blank">https://groups.google.com/d/msgid/cp2k/CALSDoYY2dCYw%2BmJHBzH5QfCTcYiOr-MWCEgVykDActo5ujGg0w%40mail.gmail.com</a>.<br>
</blockquote></div>