<span style="color: rgb(15, 17, 21); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif; font-size: 16px;">Thank you for your outstanding work. I was able to run CP2K smoothly with EPS_DEFAULT = 1.0E-13 as well. I'm reporting this bug in the hope that CP2K will become even more user-friendly.</span><br /><br /><div class="gmail_quote"><div dir="auto" class="gmail_attr">在2026年1月12日星期一 UTC+8 17:52:29<Frederick Stein> 写道:<br/></div><blockquote class="gmail_quote" style="margin: 0 0 0 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">I can reproduce it with the same number of MPI ranks but a lower number resolves it. I guess you hit a rare corner case of the implementation. I still do not understand why it happens.<br><br><div class="gmail_quote"><div dir="auto" class="gmail_attr"><a href data-email-masked rel="nofollow">yis...@163.com</a> schrieb am Samstag, 10. Januar 2026 um 12:12:55 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">thank you very much<br><br><div class="gmail_quote"><div dir="auto" class="gmail_attr">在2026年1月9日星期五 UTC+8 04:05:46<Frederick Stein> 写道:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">I can reproduce it. I will investigate it further.<br><br><div class="gmail_quote"><div dir="auto" class="gmail_attr">Frederick Stein schrieb am Mittwoch, 7. Januar 2026 um 10:34:37 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">Thank you, I will try to reproduce it.<br><br><div class="gmail_quote"><div dir="auto" class="gmail_attr"><a rel="nofollow">yis...@163.com</a> schrieb am Mittwoch, 7. Januar 2026 um 03:54:00 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">compiled toolchain using `--with-cmake=system --with-gcc=install --with-openmpi=install --with-sirius=no`. The host OS is Rocky Linux 8.10. <br><br><div class="gmail_quote"><div dir="auto" class="gmail_attr">在2026年1月7日星期三 UTC+8 09:46:21<<a rel="nofollow">yis...@163.com</a>> 写道:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Regarding this issue, I've provided feedback to the administrators of the supercomputing center. The SCC admin has now shown me this diagram—I'm not sure if it fully addresses your question.<img alt="微信图片_20260107093904_62_790.png" width="1604px" height="549px" src="https://groups.google.com/group/cp2k/attach/fe9429cf6ac82/%E5%BE%AE%E4%BF%A1%E5%9B%BE%E7%89%87_20260107093904_62_790.png?part=0.1&view=1"><div class="gmail_quote"><div dir="auto" class="gmail_attr">在2026年1月7日星期三 UTC+8 00:15:53<Frederick Stein> 写道:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Ok, serife-less fonts are not a good choice here... Please try `<span style="font-family:Times New Roman">module list</span>` after you have loaded all modules to run CP2K.<br><br><div class="gmail_quote"><div dir="auto" class="gmail_attr"><a rel="nofollow">yis...@163.com</a> schrieb am Dienstag, 6. Januar 2026 um 16:37:15 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"><span style="color:rgb(15,17,21);font-family:quote-cjk-patch,Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Oxygen,Ubuntu,Cantarell,"Open Sans","Helvetica Neue",sans-serif;font-size:16px">Enter "module ls" in the command window, and its output is shown in the following figure.</span><br><br><img alt="module Is.png" width="457px" height="765px" src="https://groups.google.com/group/cp2k/attach/fc80574c62ad6/module%20Is.png?part=0.1&view=1"><div class="gmail_quote"><div dir="auto" class="gmail_attr">在2026年1月6日星期二 UTC+8 22:18:39<Frederick Stein> 写道:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">If you use the module system, can you provide the result of `module ls` (or similar command to display the currently loaded modules). It would be great to have some more information on how CP2K was built. The behavior you observed appears as a bug in the code or the compiler/libraries.<div class="gmail_quote"><div dir="auto" class="gmail_attr"><a rel="nofollow">yis...@163.com</a> schrieb am Dienstag, 6. Januar 2026 um 14:59:43 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"><span style="color:rgb(15,17,21);font-family:quote-cjk-patch,Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Oxygen,Ubuntu,Cantarell,"Open Sans","Helvetica Neue",sans-serif;font-size:16px">I am using a supercomputer provided by a commercial supercomputing center. The CP2K software I am using was compiled by the center's staff. Is there anything I can help with?</span><br><br><div class="gmail_quote"><div dir="auto" class="gmail_attr">在2026年1月5日星期一 UTC+8 17:56:03<Frederick Stein> 写道:<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>Hi,</div><div>This could be a bug. Did you compile CP2K yourself? If yes, with which compiler?</div><div>Best,</div><div>Frederick</div><br><div class="gmail_quote"><div dir="auto" class="gmail_attr"><a rel="nofollow">yis...@163.com</a> schrieb am Dienstag, 30. Dezember 2025 um 17:43:29 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"><p style="margin:0px 0px 16px;color:rgb(15,17,21);font-family:quote-cjk-patch,Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Oxygen,Ubuntu,Cantarell,"Open Sans","Helvetica Neue",sans-serif;font-size:16px">Dear CP2K developers,</p><p style="margin:16px 0px;color:rgb(15,17,21);font-family:quote-cjk-patch,Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Oxygen,Ubuntu,Cantarell,"Open Sans","Helvetica Neue",sans-serif;font-size:16px">I would like to report a potential issue regarding the keyword <span style="font-weight:600">EPS_DEFAULT</span>. During my tests, I found that its value affects the calculation in the following way:</p><ul style="margin:16px 0px;padding-left:18px;color:rgb(15,17,21);font-family:quote-cjk-patch,Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Oxygen,Ubuntu,Cantarell,"Open Sans","Helvetica Neue",sans-serif;font-size:16px"><li><p style="margin:0px">With <span style="font-weight:600">EPS_DEFAULT = 1.0E-12</span>, the program fails with a “CPASSERT failed” error.</p></li><li style="margin-top:6px"><p style="margin:0px">With <span style="font-weight:600">EPS_DEFAULT = 1.0E-11</span> or <span style="font-weight:600">1.0E-13</span>, the calculation proceeds normally into the iteration process.</p></li></ul><p style="margin:16px 0px;color:rgb(15,17,21);font-family:quote-cjk-patch,Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Oxygen,Ubuntu,Cantarell,"Open Sans","Helvetica Neue",sans-serif;font-size:16px">I have attached the input and output files for each test case. The naming convention is as follows:</p><ul style="margin:16px 0px;padding-left:18px;color:rgb(15,17,21);font-family:quote-cjk-patch,Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Oxygen,Ubuntu,Cantarell,"Open Sans","Helvetica Neue",sans-serif;font-size:16px"><li><p style="margin:0px"><span style="font-weight:600">1.0E-12_</span>*: corresponds to EPS_DEFAULT = 1.0E-12</p></li><li style="margin-top:6px"><p style="margin:0px"><span style="font-weight:600">1.0E-11_</span>*: corresponds to EPS_DEFAULT = 1.0E-11</p></li><li style="margin-top:6px"><p style="margin:0px"><span style="font-weight:600">1.0E-13_</span>*: corresponds to EPS_DEFAULT = 1.0E-13</p></li></ul><p style="margin:16px 0px 0px;color:rgb(15,17,21);font-family:quote-cjk-patch,Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Oxygen,Ubuntu,Cantarell,"Open Sans","Helvetica Neue",sans-serif;font-size:16px">Thank you for your attention and for all your work on CP2K. I look forward to your feedback.</p></blockquote></div></blockquote></div></blockquote></div></blockquote></div></blockquote></div></blockquote></div></blockquote></div></blockquote></div></blockquote></div></blockquote></div></blockquote></div></blockquote></div>
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