<html xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <meta name="Generator" content="Microsoft Word 15 (filtered medium)"> <style></style> </head> <body lang="en-CH" link="blue" vlink="purple" style="word-wrap:break-word"> <div class="WordSection1"> <p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;mso-fareast-language:EN-US">Dear Emma<o:p></o:p></span></p> <p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;mso-fareast-language:EN-US"><o:p> </o:p></span></p> <p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;mso-fareast-language:EN-US">Without the full case showing the problem, it is difficult to provide further hints.<o:p></o:p></span></p> <p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;mso-fareast-language:EN-US"><o:p> </o:p></span></p> <p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;mso-fareast-language:EN-US">Best<o:p></o:p></span></p> <p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;mso-fareast-language:EN-US"><o:p> </o:p></span></p> <p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;mso-fareast-language:EN-US">Matthias<o:p></o:p></span></p> <p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;mso-fareast-language:EN-US"><o:p> </o:p></span></p> <div id="mail-editor-reference-message-container"> <div> <div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm"> <p class="MsoNormal" style="mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:12.0pt;margin-left:36.0pt"> <b><span style="font-size:12.0pt;color:black">From: </span></b><span style="font-size:12.0pt;color:black">cp2k@googlegroups.com <cp2k@googlegroups.com> on behalf of Emma Rossi <emma.rossi.1@studenti.unipd.it><br> <b>Date: </b>Monday, 6 November 2023 at 11:00<br> <b>To: </b>cp2k@googlegroups.com <cp2k@googlegroups.com><br> <b>Subject: </b>Re: [CP2K:19470] Re: super slow total dipole calculation for Mg2+ compared to Zn2+<o:p></o:p></span></p> </div> <div> <div> <p class="MsoNormal" style="margin-left:36.0pt"><span style="font-size:11.0pt">Dear Dr. Krack,<o:p></o:p></span></p> </div> <div> <p class="MsoNormal" style="margin-left:36.0pt"><span style="font-size:11.0pt"><o:p> </o:p></span></p> </div> <div> <p class="MsoNormal" style="margin-left:36.0pt"><span style="font-size:11.0pt">thank you for your reply.<o:p></o:p></span></p> </div> <div> <p class="MsoNormal" style="margin-left:36.0pt"><span style="font-size:11.0pt"><o:p> </o:p></span></p> </div> <div> <p class="MsoNormal" style="margin-left:36.0pt"><span style="font-size:11.0pt">I tested different cutoffs ranging from 1200 to 2200 Ry, but I cannot observe any improvement in the speed of the MOs localization procedure. <o:p></o:p></span></p> </div> <div> <p class="MsoNormal" style="margin-left:36.0pt"><span style="font-size:11.0pt">I tried also GAPW with 1200 Ry instead of GPW, which is the default, since I've read that it had been suggested on this google group for a similar problem with Na+.<o:p></o:p></span></p> </div> <div> <p class="MsoNormal" style="margin-left:36.0pt"><span style="font-size:11.0pt"><o:p> </o:p></span></p> </div> <div> <p class="MsoNormal" style="margin-left:36.0pt"><span style="font-size:11.0pt">It seems that the problem does not depend on the details of the electronic structure settings for Mg2+.<o:p></o:p></span></p> </div> <div> <p class="MsoNormal" style="margin-left:36.0pt"><span style="font-size:11.0pt"><o:p> </o:p></span></p> </div> <div> <p class="MsoNormal" style="margin-left:36.0pt"><span style="font-size:11.0pt">I attached some graphs of the iterations needed to converge the dipole in the different tests I did. Hope this might help.<o:p></o:p></span></p> </div> <div> <p class="MsoNormal" style="margin-left:36.0pt"><span style="font-size:11.0pt"><o:p> </o:p></span></p> </div> <div> <p class="MsoNormal" style="margin-left:36.0pt"><span style="font-size:11.0pt">1)TEST 1 : Mg2+ DIIS, 1200 RY, JACOBI vs Zn2+ DIIS, 600 Ry, JACOBI<o:p></o:p></span></p> </div> <div> <p class="MsoNormal" style="margin-left:36.0pt"><span style="font-size:11.0pt">2)TEST 2: Mg2+ DIIS, JACOBI, 1200-2200 Ry (fixed maximum computing time)<o:p></o:p></span></p> </div> <div> <p class="MsoNormal" style="margin-left:36.0pt"><span style="font-size:11.0pt">3) TEST 3: Mg2+ DIIS, JACOBI, 1200 Ry GPW vs.GAPW. (fixed maximum computing time)<o:p></o:p></span></p> </div> <div> <p class="MsoNormal" style="margin-left:36.0pt"><span style="font-size:11.0pt"><o:p> </o:p></span></p> </div> <div> <p class="MsoNormal" style="margin-left:36.0pt"><span style="font-size:11.0pt"><o:p> </o:p></span></p> </div> <div> <p class="MsoNormal" style="margin-left:36.0pt"><span style="font-size:11.0pt">Thank you again for your availability in discussing.<o:p></o:p></span></p> </div> <div> <p class="MsoNormal" style="margin-left:36.0pt"><span style="font-size:11.0pt"><o:p> </o:p></span></p> </div> <div> <p class="MsoNormal" style="margin-left:36.0pt"><span style="font-size:11.0pt">Best regards,<o:p></o:p></span></p> </div> <div> <p class="MsoNormal" style="margin-left:36.0pt"><span style="font-size:11.0pt">Emma Rossi<o:p></o:p></span></p> </div> </div> <p class="MsoNormal" style="margin-left:36.0pt"><span style="font-size:11.0pt"><o:p> </o:p></span></p> <div> <div> <p class="MsoNormal" style="margin-left:36.0pt"><span style="font-size:11.0pt">Il giorno gio 2 nov 2023 alle ore 16:29 Krack Matthias <<a href="mailto:matthias.krack@psi.ch" target="_blank">matthias.krack@psi.ch</a>> ha scritto:<o:p></o:p></span></p> </div> <blockquote style="border:none;border-left:solid #CCCCCC 1.0pt;padding:0cm 0cm 0cm 6.0pt;margin-left:4.8pt;margin-right:0cm"> <div> <div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt"> <span lang="DE-CH" style="font-size:11.0pt">Dear Emma</span><span style="font-size:11.0pt"><o:p></o:p></span></p> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt"> <span lang="DE-CH" style="font-size:11.0pt"> </span><span style="font-size:11.0pt"><o:p></o:p></span></p> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt"> <span lang="EN-US" style="font-size:11.0pt">The electronic structure of Mg(2+) (2s2 2p6) and Zn(2+) (3d10) is anything than similar. The very great hardness of the Mg-q10 pseudopotential, as already noted by Marcella, has been discussed several times on this forum. It requires with GPW cutoff values of 1200 Ry or larger for converged forces.</span><span style="font-size:11.0pt"><o:p></o:p></span></p> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt"> <span lang="EN-US" style="font-size:11.0pt"> </span><span style="font-size:11.0pt"><o:p></o:p></span></p> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt"> <span lang="EN-US" style="font-size:11.0pt">HTH</span><span style="font-size:11.0pt"><o:p></o:p></span></p> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt"> <span lang="EN-US" style="font-size:11.0pt"> </span><span style="font-size:11.0pt"><o:p></o:p></span></p> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt"> <span lang="EN-US" style="font-size:11.0pt">Matthias</span><span style="font-size:11.0pt"><o:p></o:p></span></p> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt"> <span lang="EN-US" style="font-size:11.0pt"> </span><span style="font-size:11.0pt"><o:p></o:p></span></p> <div id="m_-2479016586610218506m_1747576358468295926mail-editor-reference-message-container"> <div> <div style="border:none;border-top:solid windowtext 1.0pt;padding:3.0pt 0cm 0cm 0cm;border-color:currentcolor currentcolor"> <p class="MsoNormal" style="mso-margin-top-alt:auto;margin-bottom:12.0pt;margin-left:72.0pt"> <b><span style="font-size:12.0pt;color:black">From: </span></b><span style="font-size:12.0pt;color:black"><a href="mailto:cp2k@googlegroups.com" target="_blank">cp2k@googlegroups.com</a> <<a href="mailto:cp2k@googlegroups.com" target="_blank">cp2k@googlegroups.com</a>> on behalf of Emma Rossi <<a href="mailto:emma.rossi.1@studenti.unipd.it" target="_blank">emma.rossi.1@studenti.unipd.it</a>><br> <b>Date: </b>Thursday, 2 November 2023 at 15:55<br> <b>To: </b><a href="mailto:cp2k@googlegroups.com" target="_blank">cp2k@googlegroups.com</a> <<a href="mailto:cp2k@googlegroups.com" target="_blank">cp2k@googlegroups.com</a>><br> <b>Subject: </b>Re: [CP2K:19451] Re: super slow total dipole calculation for Mg2+ compared to Zn2+</span><span style="font-size:11.0pt"><o:p></o:p></span></p> </div> <div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:11.0pt">Dear Marcella,<o:p></o:p></span></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:11.0pt"> <o:p></o:p></span></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:11.0pt">I checked the Wannier centers of the system and they are properly localized.<o:p></o:p></span></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:11.0pt">I tried running the dynamics also with 800 Ry cutoff (vs. 600 Ry used previously), CG minimization algorithm for the wfn (vs. DIIS ) and CRAZY method (vs. JACOBI) for the calculation of the dipole moment. These settings do not improve the situation.<o:p></o:p></span></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:11.0pt"> <o:p></o:p></span></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:11.0pt">I cannot figure out the reason why the localization of the total dipole moment for Mg2+ requires many more iterations per step compared to Zn2+. These metals have very similar electronic structure, 10 and 12 valence electrons respectively, and using the same level of theory, the calculation for the two takes very different time scales.<o:p></o:p></span></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:11.0pt">I'm going to compute both the band gap and the Wannier centers also for the system with Zn2+, just to compare. <o:p></o:p></span></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:11.0pt"> <o:p></o:p></span></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:11.0pt">Thank you for your suggestions and any further discussions are highly appreciated.<o:p></o:p></span></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:11.0pt"> <o:p></o:p></span></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:11.0pt">Best regards,<o:p></o:p></span></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:11.0pt">Emma Rossi<o:p></o:p></span></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:11.0pt"> <o:p></o:p></span></p> </div> </div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:11.0pt"> <o:p></o:p></span></p> <div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:11.0pt">Il giorno mar 24 ott 2023 alle ore 17:51 Marcella Iannuzzi <<a href="mailto:marci.akira@gmail.com" target="_blank">marci.akira@gmail.com</a>> ha scritto:<o:p></o:p></span></p> </div> <blockquote style="border:none;border-left:solid windowtext 1.0pt;padding:0cm 0cm 0cm 6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0cm;margin-bottom:5.0pt;border-color:currentcolor currentcolor currentcolor rgb(204,204,204)"> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:11.0pt"> <o:p></o:p></span></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:11.0pt"> <o:p></o:p></span></p> </div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:11.0pt">Dear Emma, <o:p></o:p></span></p> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:11.0pt"> <o:p></o:p></span></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:11.0pt">If the MOS are localised the Wannier centers are also available and the coordinates can be printed by activating the related print_key <o:p></o:p></span></p> </div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:126.0pt;line-height:18.0pt"> <span style="font-size:11.0pt;font-family:Symbol;color:#404040">·</span><span style="font-size:7.0pt;font-family:"Times New Roman",serif;color:#404040"> </span><span style="font-size:12.0pt;font-family:"Lato",sans-serif;color:#404040"><a href="https://manual.cp2k.org/trunk/CP2K_INPUT/FORCE_EVAL/DFT/LOCALIZE/PRINT/WANNIER_CENTERS.html" target="_blank"><span style="color:#9B59B6">WANNIER_CENTERS</span></a></span><span style="font-size:11.0pt"><o:p></o:p></span></p> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:11.0pt">Regards<o:p></o:p></span></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:11.0pt">Marcella<o:p></o:p></span></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;margin-bottom:12.0pt;margin-left:72.0pt"> <span style="font-size:11.0pt"> <o:p></o:p></span></p> </div> <div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:11.0pt">On Tuesday, October 24, 2023 at 5:34:27 PM UTC+2 Emma Rossi wrote:<o:p></o:p></span></p> </div> <blockquote style="border:none;border-left:solid windowtext 1.0pt;padding:0cm 0cm 0cm 6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0cm;margin-bottom:5.0pt;border-color:currentcolor currentcolor currentcolor rgb(204,204,204)"> <div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:11.0pt">Dear Marcella, <o:p></o:p></span></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:11.0pt"> <o:p></o:p></span></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:11.0pt">Thank you very much for your reply.<o:p></o:p></span></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:11.0pt"> <o:p></o:p></span></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:11.0pt">Actually, I’m using the Berry phase approach to compute the total dipole of the simulation box, thus I have not Wannier centres from my calculations at the moment.<o:p></o:p></span></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:11.0pt"> <o:p></o:p></span></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:11.0pt">I tried several keywords for the minimisation of the wavefunction on single point calculations in gas phase. Conjugate Gradient in combination with the FULL_ALL preconditioner seems to speed up the calculation compared to DIIS and FULL_KINETIC preconditioner. I’ll try to use these <o:p></o:p></span></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:11.0pt">settings for the MD in bulk.<o:p></o:p></span></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:11.0pt"> <o:p></o:p></span></p> </div> <div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:12.0pt;color:black">Using larger cutoffs for the electron density makes the calculations even slower. </span><span style="font-size:11.0pt"><o:p></o:p></span></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;margin-bottom:12.0pt;margin-left:72.0pt"> <span style="font-size:11.0pt"><o:p> </o:p></span></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:11.0pt;color:black">Concerning the band gap, I’ll check whether experimental data are available in the literature to assess the accuracy of my calculations.</span><span style="font-size:11.0pt"><o:p></o:p></span></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:11.0pt;color:black"> </span><span style="font-size:11.0pt"><o:p></o:p></span></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:11.0pt;color:black">Thank you again for your hints.</span><span style="font-size:11.0pt"><o:p></o:p></span></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:11.0pt;color:black"> </span><span style="font-size:11.0pt"><o:p></o:p></span></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:11.0pt;color:black">Best ragards,</span><span style="font-size:11.0pt"><o:p></o:p></span></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:11.0pt;color:black">Emma Rossi</span><span style="font-size:11.0pt"><o:p></o:p></span></p> </div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:11.0pt;color:black"> </span><span style="font-size:11.0pt"><o:p></o:p></span></p> </div> </div> <div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:11.0pt"> <o:p></o:p></span></p> </div> </div> <div> <div> <div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:11.0pt">Il giorno ven 20 ott 2023 alle 12:49 Marcella Iannuzzi <<a href="mailto:marci...@gmail.com" target="_blank">marci...@gmail.com</a>> ha scritto:<o:p></o:p></span></p> </div> </div> </div> </div> <div> <div> <div> <blockquote style="border:none;border-left:solid windowtext 1.0pt;padding:0cm 0cm 0cm 6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0cm;margin-bottom:5.0pt;border-color:currentcolor currentcolor currentcolor rgb(204,204,204)"> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:11.0pt"> <o:p></o:p></span></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:11.0pt"> <o:p></o:p></span></p> </div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:11.0pt">Dear Emma,<o:p></o:p></span></p> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:11.0pt"> <o:p></o:p></span></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:11.0pt">Both Mg and Na have quite hard functions in the basis set, it might be that the cutoff of 600 Ry is not sufficient.<o:p></o:p></span></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:11.0pt">Have you checked whether the electronic structure is OK (e.g. energy gap) ? <o:p></o:p></span></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:11.0pt">Often the localisation algorithm shows convergence problems when there are intrinsically very delocalised states (see metals).<o:p></o:p></span></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:11.0pt">Maybe this is not the problem though. Are the Wannier centres after localisation at the expected positions ? <o:p></o:p></span></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:11.0pt"> <o:p></o:p></span></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:11.0pt">Regards<o:p></o:p></span></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:11.0pt">Marcella<o:p></o:p></span></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:11.0pt"> <o:p></o:p></span></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:11.0pt"> <o:p></o:p></span></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:11.0pt"> <o:p></o:p></span></p> </div> <div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:11.0pt">On Friday, October 20, 2023 at 11:09:48 AM UTC+2 Emma Rossi wrote:<o:p></o:p></span></p> </div> <blockquote style="border:none;border-left:solid windowtext 1.0pt;padding:0cm 0cm 0cm 6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0cm;margin-bottom:5.0pt;border-color:currentcolor currentcolor currentcolor rgb(204,204,204)"> <p class="MsoNormal" style="mso-margin-top-alt:auto;margin-bottom:12.0pt;margin-left:72.0pt"> <span style="font-size:11.0pt">Dear developers and CP2K users,<o:p></o:p></span></p> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:11.0pt">I'm running AIMD simulations and computing the total dipole moment of a 15 A cubic box (Berry phase approach) containing water molecules, a phosphate chain (-4) and a divalent cation, either Zn2+ or Mg2+. <o:p></o:p></span></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:11.0pt">For Mg2+, the convergence of the MOs localization process at each step is tremendously slower (one/two order of magnitude) compared to the box with Zn2+. I cannot figure out the reason of such behaviour. I use the default setting for the LOCALIZE section, which employs the JACOBI method.<o:p></o:p></span></p> </div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:11.0pt"> <o:p></o:p></span></p> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:11.0pt">The -2 net charge of the system is counterbalanced by uniform background. 600 Ry cutoff for the auxiliary PW expansion of the electron density (500 or 400 Ry are used in the literature for Zn2+ and Mg2+ respectively) and BLYP XC are used. DZVP-MOLOPT-SR-GTH-q10 and DZVP-MOLOPT-SR-GTH-q12 are used for Mg2+ and Zn2+ respectively. <o:p></o:p></span></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:11.0pt"> <o:p></o:p></span></p> </div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:11.0pt">I observe a similar slowdown of the MOs localization speed when I use Na+ atoms to counterbalance the -2 charge of the system containing Zn2+.<br> <br> Here a typical input file follows.<br> <br> &GLOBAL<br> PRINT_LEVEL LOW<br> PROJECT_NAME MD<br> RUN_TYPE MD<br> &END GLOBAL<br> &MOTION<br> &MD<br> ENSEMBLE NVT<br> STEPS 100<br> TIMESTEP 0.5 <br> TEMPERATURE 3.0000000000000000E+02<br> TEMP_TOL 5.0000000000000000E+01<br> &THERMOSTAT<br> TYPE CSVR<br> &CSVR<br> TIMECON 2.4999999999999996E+01<br> &END CSVR<br> &END THERMOSTAT<br> &END MD<br> &END MOTION<br> &FORCE_EVAL<br> METHOD QS<br> &DFT<br> BASIS_SET_FILE_NAME BASIS_MOLOPT<br> POTENTIAL_FILE_NAME GTH_POTENTIALS<br> CHARGE -2<br> &SCF<br> MAX_SCF 100<br> EPS_SCF 4.9999999999999998E-07<br> SCF_GUESS RESTART<br> &OT T<br> MINIMIZER DIIS<br> PRECONDITIONER FULL_KINETIC<br> &END OT<br> &END SCF<br> &MGRID<br> CUTOFF 6.0000000000000000E+02<br> &END MGRID<br> &XC<br> DENSITY_CUTOFF 1.0000000000000000E-10<br> GRADIENT_CUTOFF 1.0000000000000000E-10<br> TAU_CUTOFF 1.0000000000000000E-10<br> &XC_GRID<br> XC_SMOOTH_RHO NN10<br> XC_DERIV SPLINE2_SMOOTH<br> &END XC_GRID<br> &XC_FUNCTIONAL NO_SHORTCUT<br> &BECKE88 T<br> &END BECKE88<br> &LYP T<br> &END LYP<br> &END XC_FUNCTIONAL<br> &VDW_POTENTIAL<br> &PAIR_POTENTIAL<br> R_CUTOFF 8.0000000000000000E+00<br> TYPE DFTD3(BJ)<br> PARAMETER_FILE_NAME dftd3.dat<br> REFERENCE_FUNCTIONAL BLYP<br> EPS_CN 1.0000000000000000E-02<br> CALCULATE_C9_TERM T<br> REFERENCE_C9_TERM T<br> LONG_RANGE_CORRECTION T<br> &END PAIR_POTENTIAL<br> &END VDW_POTENTIAL<br> &END XC<br> <b> &LOCALIZE T<br> &PRINT<br> &TOTAL_DIPOLE ON<br> FILENAME =totdipole<br> PERIODIC T<br> &EACH<br> MD 1<br> &END EACH<br> &END TOTAL_DIPOLE<br> &END PRINT<br> &END LOCALIZE</b><br> &END DFT<br> &SUBSYS<br> &CELL<br> A 1.5460000000000001E+01 0.0000000000000000E+00 0.0000000000000000E+00<br> B 0.0000000000000000E+00 1.5460000000000001E+01 0.0000000000000000E+00<br> C 0.0000000000000000E+00 0.0000000000000000E+00 1.5460000000000001E+01<br> MULTIPLE_UNIT_CELL 1 1 1<br> &END CELL<br> &KIND O<br> BASIS_SET DZVP-MOLOPT-GTH-q6<br> POTENTIAL GTH-BLYP-q6<br> &END KIND<br> &KIND H<br> BASIS_SET DZVP-MOLOPT-GTH-q1<br> POTENTIAL GTH-BLYP-q1<br> &END KIND<br> &KIND C<br> BASIS_SET DZVP-MOLOPT-GTH-q4<br> POTENTIAL GTH-BLYP-q4<br> &END KIND<br> &KIND P<br> BASIS_SET DZVP-MOLOPT-GTH-q5<br> POTENTIAL GTH-BLYP-q5<br> &END KIND<br> &KIND Na<br> BASIS_SET DZVP-MOLOPT-SR-GTH-q9<br> POTENTIAL GTH-BLYP-q9<br> &END KIND<br> &KIND Mg<br> BASIS_SET DZVP-MOLOPT-SR-GTH-q10<br> POTENTIAL GTH-BLYP-q10<br> &END KIND<br> &TOPOLOGY<br> NUMBER_OF_ATOMS 384<br> MULTIPLE_UNIT_CELL 1 1 1<br> &END TOPOLOGY<br> &END SUBSYS<br> &END FORCE_EVAL<br> <br> Here a piece of the <b>file.out</b> concerning the <b>localization</b> is reported<br> <br> ENSEMBLE TYPE = NVT<br> STEP NUMBER = 48740<br> TIME [fs] = 24370.000000<br> CONSERVED QUANTITY [hartree] = -0.234908827385E+04<br> <br> INSTANTANEOUS AVERAGES<br> CPU TIME [s] = 220.24 29.11<br> ENERGY DRIFT PER ATOM [K] = -0.274167730955E+04 -0.106732023761E+04<br> POTENTIAL ENERGY[hartree] = -0.235022491736E+04 -0.234811418791E+04<br> KINETIC ENERGY [hartree] = 0.530388799833E+00 0.547854613121E+00<br> TEMPERATURE [K] = 291.529 301.129<br> ***************************<br> <br> <br> Number of electrons: 1070<br> Number of occupied orbitals: 535<br> Number of molecular orbitals: 535<br> <br> Number of orbital functions: 3012<br> Number of independent orbital functions: 3012<br> <br> Extrapolation method: ASPC<br> <br> SCF WAVEFUNCTION OPTIMIZATION<br> <br> ----------------------------------- OT ---------------------------------------<br> Minimizer : DIIS : direct inversion<br> in the iterative subspace<br> using 7 DIIS vectors<br> safer DIIS on<br> Preconditioner : FULL_KINETIC : inversion of T + eS<br> Precond_solver : DEFAULT<br> stepsize : 0.15000000 energy_gap : 0.20000000<br> eps_taylor : 0.10000E-15 max_taylor : 4<br> ----------------------------------- OT ---------------------------------------<br> <br> Step Update method Time Convergence Total energy Change<br> ------------------------------------------------------------------------------<br> 1 OT DIIS 0.15E+00 4.9 0.00001365 -2350.2265786077 -2.35E+03<br> 2 OT DIIS 0.15E+00 7.0 0.00000785 -2350.2266129356 -3.43E-05<br> 3 OT DIIS 0.15E+00 7.0 0.00000667 -2350.2266281036 -1.52E-05<br> 4 OT DIIS 0.15E+00 7.0 0.00000316 -2350.2266318502 -3.75E-06<br> 5 OT DIIS 0.15E+00 7.1 0.00000285 -2350.2266340790 -2.23E-06<br> 6 OT DIIS 0.15E+00 7.0 0.00000168 -2350.2266355491 -1.47E-06<br> 7 OT DIIS 0.15E+00 7.1 0.00000158 -2350.2266365271 -9.78E-07<br> 8 OT DIIS 0.15E+00 7.0 0.00000079 -2350.2266370647 -5.38E-07<br> 9 OT DIIS 0.15E+00 7.1 0.00000054 -2350.2266374235 -3.59E-07<br> 10 OT DIIS 0.15E+00 7.0 0.00000041 -2350.2266374897 -6.63E-08<br> <br> * SCF run converged in 10 steps *<br> <br> <br> Electronic density on regular grids: -1069.9999984366 0.0000015634<br> Core density on regular grids: 1067.9999999649 -0.0000000351<br> Total charge density on r-space grids: -1.9999984716<br> Total charge density g-space grids: -1.9999984716<br> <br> Overlap energy of the core charge distribution: 0.00000352123302<br> Self energy of the core charge distribution: -6058.29367128599642<br> Core Hamiltonian energy: 1758.83041225385932<br> Hartree energy: 2514.80853697306702<br> Exchange-correlation energy: -565.57191895188691<br> <br> Total energy: -2350.22663748972354<br> <br> LOCALIZE| The spread relative to a set of orbitals is computed<br> LOCALIZE| Orbitals to be localized: All orbitals<br> LOCALIZE| If fractional occupation, fully occupied MOs are those<br> within occupation tolerance of 0.00000001<br> LOCALIZE| Spread defined by the Berry phase operator<br> LOCALIZE| Optimal unitary transformation generated by Jacobi algorithm<br> <br> Eigenvalues of the occupied subspace spin 1<br> ---------------------------------------------<br> -2.77340522 -1.55519360 -1.55401616 -1.55312686<br> -0.84401306 -0.81554322 -0.80702571 -0.80237237<br> -0.80085752 -0.79902548 -0.79112340 -0.79067760<br> -0.78889214 -0.78844561 -0.78745096 -0.78661985<br> -0.78594483 -0.78398619 -0.78359896 -0.78223867<br> -0.78202387 -0.78089859 -0.77900446 -0.77831838<br> -0.77761721 -0.77700210 -0.77677871 -0.77654095<br> -0.77610461 -0.77529141 -0.77482833 -0.77403370<br> [.......]<br> -0.09177880 -0.09168157 -0.09118981 -0.09045276<br> -0.09027640 -0.08911508 -0.08871380 -0.08817562<br> -0.08660485 -0.08624312 -0.08399649 -0.08220911<br> -0.07894380 -0.07429071 -0.06779908<br> Fermi Energy [eV] : -1.844907<br> <br> LOCALIZATION| Computing localization properties for OCCUPIED ORBITALS. Spin: 1<br> Spread Functional sum_in -w_i ln(|z_in|^2) sum_in w_i(1-|z_in|^2)<br> Initial Spread (Berry) : 203183.2008851338 34522.<a href="tel:(934)%20645-3651" target="_blank">9346453651</a><br> Localization by iterative distributed Jacobi rotation<br> Iteration Functional Tolerance Time<br> 100 1035.1444747551 0.7611E-01 0.145<br> 200 1035.1439265702 0.2374E-01 0.145<br> 300 1035.1438285431 0.2086E-01 0.145<br> 400 1035.1437772042 0.1457E-01 0.155<br> 500 1035.1437553092 0.8452E-02 0.146<br> 600 1035.1437479886 0.4565E-02 0.156<br> 700 1035.1437457665 0.2413E-02 0.144<br> 800 1035.1437451192 0.1268E-02 0.155<br> 900 1035.1437449348 0.6661E-03 0.155<br> 1000 1035.1437448830 0.3497E-03 0.156<br> 1100 1035.1437448685 0.1836E-03 0.169<br> Localization for spin 1 converged in 1195 iterations<br> Spread Functional sum_in -w_i ln(|z_in|^2) sum_in w_i(1-|z_in|^2)<br> Total Spread (Berry) : 1051.<a href="tel:(831)%20528-3360" target="_blank">8315283360</a> 1035.1437448646<o:p></o:p></span></p> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:11.0pt"> <o:p></o:p></span></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:11.0pt">To check the role of the localization method in such problem, I ran two single point calculations, the first using the JACOBI method and the second using the CRAZY method to compute the total dipole. The latter makes the process even slower. <o:p></o:p></span></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:11.0pt"> <o:p></o:p></span></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:11.0pt">I would be very grateful if any of you could give me any insight.<o:p></o:p></span></p> </div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt"> <span style="font-size:11.0pt"><br> Best regards,<br> Emma Rossi<o:p></o:p></span></p> </blockquote> </div> </blockquote> </div> </div> </div> <div> <div> <div> <blockquote style="border:none;border-left:solid windowtext 1.0pt;padding:0cm 0cm 0cm 6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0cm;margin-bottom:5.0pt;border-color:currentcolor currentcolor currentcolor rgb(204,204,204)"> <p class="MsoNormal" 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