Hi Frederick,<div><br /></div><div>Thanks for all your help. I'll check them all.<br /><br /></div><div class="gmail_quote"><div dir="auto" class="gmail_attr">On Monday, January 13, 2025 at 8:32:22 AM UTC-6 Frederick Stein wrote:<br/></div><blockquote class="gmail_quote" style="margin: 0 0 0 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;"><div>Dear Hana,</div><div>Maybe some of the other users/developers are of better help. From the manual, you will find the following parameters:</div><div>- REL_CUTOFF (higher values increase the accuracy)</div><div>- parameters in the DFT/QS section</div><div>- parameters in the SUBSYS/KIND section (especially LEBEDEV_GRID and RADIAL_GRID for the integration grids)</div><div><br></div><div>In the user group, there is the following interesting conversations:</div><div><a href="https://groups.google.com/g/cp2k/c/FUvjXq9RvWY" target="_blank" rel="nofollow" data-saferedirecturl="https://www.google.com/url?hl=en&q=https://groups.google.com/g/cp2k/c/FUvjXq9RvWY&source=gmail&ust=1737256118458000&usg=AOvVaw2Ol-fMWzWw58lV3xqewdsX">https://groups.google.com/g/cp2k/c/FUvjXq9RvWY</a></div><div><br></div><div>Best,</div><div>Frederick<br></div><div><br></div><div class="gmail_quote"><div dir="auto" class="gmail_attr">Hana schrieb am Donnerstag, 9. Januar 2025 um 21:10:04 UTC+1:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Dear Frederick,<div><br></div><div>Thanks for you response. I checked the convergence of EPS_DEFAULT and it does converge under the defined threshold (1.0E-12). Also removing
EPS_PGF_ORB didn't help much. Do you have other suggestions? Thanks!<br><br></div><div class="gmail_quote"><div dir="auto" class="gmail_attr">On Tuesday, January 7, 2025 at 2:22:11 AM UTC-6 Frederick Stein wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div>Dear Hana,</div><div>Can you check the convergence of EPS_DEFAULT (and remove EPS_PGF_ORB)? The error in total energies is at the order of SQRT(EPS_DEFAULT) which is the order of magnitude of your deviations.</div><div>Best,</div><div>Frederick<br></div><br><div class="gmail_quote"><div dir="auto" class="gmail_attr">Hana schrieb am Dienstag, 7. Januar 2025 um 05:14:19 UTC+1:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Hello,<div><br></div><div>I am working on a system consisting of EMIM and NTF2 ions. I am trying to perform convergence test on the total energy of the system. Using the GAPW method, the energy converges only up to the fourth decimal and this convergence happens around a cutoff of 800 Ry. I had read in the forum that GAPW is supposed to lower the required cutoff, but there seems to be an issue in my case. I would appreciate it if you could take a look and let me know about any ways to improve this convergence.</div><div><br></div><div>800 -311.670573521991457<br>700 -311.670595504244886<br>600 -311.670574077220238<br>500 -311.670578743875410<br>440 -311.670607726234607<br>420 -311.670640376258746<br>400 -311.670594145176324<br>380 -311.670596179369568<br>360 -311.670587449418463<br></div><div><br></div><div>Thank you</div><div><br></div><div><br></div></blockquote></div></blockquote></div></blockquote></div></blockquote></div>
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