<div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr">Dear User and Developers,<div><br></div><div>I am unable to converge my SCF calculations in Quantum Espresso 6.4.1 using meta-GGA SCAN function. However, the same input file successfully converges in Quantum Espresso 6.3. In Quantum Espresso 6.4.1, by using meta-GGA SCAN function, SCF calculation give the following error:</div><div><br></div><div>c_bands: 1 eigenvalues not converged</div><div><div>c_bands: 3 eigenvalues not converged</div><div>c_bands: 2 eigenvalues not converged</div><div>c_bands: 4 eigenvalues not converged</div></div><div><br></div><div>I am using Quantum Espresso 6.3 and Quantum Espresso 6.4.1 on the same machine compiled using similar make.inc file. My computer has AMD Ryzen processor and I am not using Intel compiler and libraries. I have attached a sample input file and output files from Quantum Espresso 6.3 and Quantum Espresso 6.4.1</div><div><br></div><div><a href="https://www.dropbox.com/sh/is3buyye8td107e/AACKBkQRv5vGjUGknzB6-Skba?dl=0">https://www.dropbox.com/sh/is3buyye8td107e/AACKBkQRv5vGjUGknzB6-Skba?dl=0</a><br clear="all"><div><br></div>Thanks,</div><div><br></div><div>Shoaib Muhammad (Ph.D) <br><div dir="ltr" class="gmail_signature"><p class="MsoNormal" style="margin:0in 0in 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif">Department of Energy Science</p>
<p class="MsoNormal" style="margin:0in 0in 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif">Sungkyunkwan University</p>
<p class="MsoNormal" style="margin:0in 0in 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif">South Korea.</p></div></div></div></div></div></div>