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<div style="font-size: 16px; font-family: Tahoma; color: rgb(0, 0, 0); font-weight: 400; font-style: normal; background: rgba(0, 0, 0, 0) none repeat scroll 0% 0%;">Dear Iurii,</div>
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<div style="font-size: 16px; font-family: Tahoma; color: rgb(0, 0, 0); font-weight: 400; font-style: normal; background: rgba(0, 0, 0, 0) none repeat scroll 0% 0%;">Thank you for your reply.</div>
<div style="font-size: 16px; font-family: Tahoma; color: rgb(0, 0, 0); font-weight: 400; font-style: normal; background: rgba(0, 0, 0, 0) none repeat scroll 0% 0%;">I found out maybe something wrong has been happened in coding.</div>
<div style="font-size: 16px; font-family: Tahoma; color: rgb(0, 0, 0); font-weight: 400; font-style: normal; background: rgba(0, 0, 0, 0) none repeat scroll 0% 0%;">In a system I am investigating, searching the global minimum-energy state out of all possible occupation-matrix configurations, I found two configurations (using starting_ns_eigenvalue()=1), that the results of energy and geometry were different for the same input !!!</div>
<div style="font-size: 16px; font-family: Tahoma; color: rgb(0, 0, 0); font-weight: 400; font-style: normal; background: rgba(0, 0, 0, 0) none repeat scroll 0% 0%;">Does this imply that the old versions are bug-fixed in QE-7.1?</div>
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<div style="font-size: 16px; font-family: Tahoma; color: rgb(0, 0, 0); font-weight: 400; font-style: normal; background: rgba(0, 0, 0, 0) none repeat scroll 0% 0%;">Best regards,</div>
<div style="font-size: 16px; font-family: Tahoma; color: rgb(0, 0, 0); font-weight: 400; font-style: normal; background: rgba(0, 0, 0, 0) none repeat scroll 0% 0%;">Mahmoud </div>
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<blockquote class="as91pFk8AX8sDPOUp66RUy8IoCRjefxNG8oLk8fg" style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">From: Iurii TIMROV <iurii.timrov@epfl.ch><br />
To: Mahmoud Payami Shabestari <mpayami@aeoi.org.ir>, "Quantum ESPRESSO users Forum" <users@lists.quantum-espresso.org><br />
Date: Thu, 11 Aug 2022 10:33:10 +0000<br />
Subject: Re: [QE-users] different eigenvalues results for PW/example08 in QE7.1 and QE6.7<br />
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<div>In example08, after the 1st iteration the eigenvalues are:</div>
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<div>spin 1<br />
eigenvalues:<br />
0.987 0.987 0.997 0.997 0.999</div>
<div>spin 2<br />
eigenvalues:<br />
0.200 0.200 0.335 0.335 0.384</div>
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<div>The non-degenerate eigenvalue is the 5th one (spin 2) and not the 3rd one. That's why in QE7.1 it was corrected to the 5th one while in QE6.7 it was not correct. I presume that in the old versions of the code it was the 3rd one, but then since the code evolves a lot, there were some changes and the example was not updated.</div>
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<div>Iurii</div>
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<div dir="ltr" id="divRplyFwdMsg"><font color="#000000" face="Calibri, sans-serif" style="font-size:11pt"><b>From:</b> users <users-bounces@lists.quantum-espresso.org> on behalf of Mahmoud Payami Shabestari via users <users@lists.quantum-espresso.org><br />
<b>Sent:</b> Wednesday, August 10, 2022 7:23:00 PM<br />
<b>To:</b> users@lists.quantum-espresso.org<br />
<b>Subject:</b> [QE-users] different eigenvalues results for PW/example08 in QE7.1 and QE6.7</font>
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<div style="font-size: 16px; font-family: Tahoma; color: rgb(0, 0, 0); font-weight: 400; font-style: normal; background: rgba(0, 0, 0, 0) none repeat scroll 0% 0%;">Dear QE Developers,</div>
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<div style="font-size: 16px; font-family: Tahoma; color: rgb(0, 0, 0); font-weight: 400; font-style: normal; background: rgba(0, 0, 0, 0) none repeat scroll 0% 0%;">Hi.</div>
<div style="font-size: 16px; font-family: Tahoma; color: rgb(0, 0, 0); font-weight: 400; font-style: normal; background: rgba(0, 0, 0, 0) none repeat scroll 0% 0%;">I noticed that in example08 of PW (DFT+U applied for FeO), the eigenvalues in iteration 1 are different depending on using QE-6.7 or Qe-7.1. For example, in QE-6.7 the non-degenerate eigenvalue is for m=0, (the third one) while it is for m=2 (the fifth one) in QE-7.1.</div>
<div style="font-size: 16px; font-family: Tahoma; color: rgb(0, 0, 0); font-weight: 400; font-style: normal; background: rgba(0, 0, 0, 0) none repeat scroll 0% 0%;">But the final results for E_tot are similar. </div>
<div style="font-size: 16px; font-family: Tahoma; color: rgb(0, 0, 0); font-weight: 400; font-style: normal; background: rgba(0, 0, 0, 0) none repeat scroll 0% 0%;">I would highly appreciate if somebody please provide comments on this issue.</div>
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<div style="font-size: 16px; font-family: Tahoma; color: rgb(0, 0, 0); font-weight: 400; font-style: normal; background: rgba(0, 0, 0, 0) none repeat scroll 0% 0%;">With best regards,</div>
<div style="font-size: 16px; font-family: Tahoma; color: rgb(0, 0, 0); font-weight: 400; font-style: normal; background: rgba(0, 0, 0, 0) none repeat scroll 0% 0%;">Mahmoud Payami</div>
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<div style="font-size: 16px; font-family: Tahoma; color: rgb(0, 0, 0); font-weight: 400; font-style: normal; background: rgba(0, 0, 0, 0) none repeat scroll 0% 0%;">NSTRI, AEOI, Tehran, Iran</div>
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<div style="font-family: Tahoma; color: rgb(0, 0, 0); font-size: 16px; font-weight: 400; font-style: normal;">Email: mpayami@aeoi.org.ir</div>
<div style="font-family: Tahoma; color: rgb(0, 0, 0); font-size: 16px; font-weight: 400; font-style: normal;">Phone: +98 (0)21 82066504</div>
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