<div dir="ltr">Hello all,<div><br></div><div>I am trying to do Wannier localisation in CP2K. I start with a box containing around 80 water molecules at ambient conditions. I use the CRAZY localisation method and set the localisation cutoff to 10^-8 as suggested in the CP2K exercise. This gives good convergence of the localisation process within around 100 steps. </div><div><br></div><div>However, now when I add a Na+ and Cl- ion in my box, I find that the localisation does not converge even after around 10000 steps for some simulation steps for the above cutoff. Even if it does converge it takes a significantly long time (for both JACOBI and CRAZY methods). I was thinking of loosening the convergence criteria but is this a good idea ? Also, is there a rule of thumb to determine the best localisation cutoff for different systems. I run simulations at ambient-supercritical temperatures with pure water and water with different charged ions.</div><div><br></div><div>I thank you in advance for your comments and suggestions. <br clear="all"><div><br></div>-- <br><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div><font face="Arial, sans-serif"><span style="line-height:16.12px">With Regards,</span></font></div><div><font face="Arial, sans-serif">Rajorshi Chattopadhyay,</font></div><div><font face="Arial, sans-serif">PhD Researcher in Mineralogy/Crystallography,</font></div><div><font face="Arial, sans-serif"><span style="line-height:16.12px">Institut für Geologie und Mineralogie,</span></font></div><div><font face="Arial, sans-serif"><span style="line-height:16.12px">Universität zu Köln, Germany<br></span></font></div><div style="font-size:small"><br></div><div style="font-size:small"><span style="line-height:16.12px;font-size:12.8px"></span></div></div></div></div></div></div></div>
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