<div dir="ltr"><div>Hi,</div><div>Probably scf steps in phonon calculation is not converging, please check in between steps during phonon calculation or changing some parameter of phonon calculation <br></div><div>this problem can be resolved like, <a href="https://www.quantum-espresso.org/Doc/INPUT_PH.html#idm36">alpha_mix(niter</a>), <a href="https://www.quantum-espresso.org/Doc/INPUT_PH.html#idm63">epsil</a>.</div><div><br></div><div>Thanks,</div><div>Rita<br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Mon, Aug 13, 2018 at 12:35 AM, Sina Malakpour <span dir="ltr"><<a href="mailto:sina.malakpour@gmail.com" target="_blank">sina.malakpour@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Dear all,<div><br></div><div>Recently, I am working on linear response method implemented in QE to do the phonon calculations for a structure. I apply different isotropic strain to the optimized structure and then I run the phonon computations through these steps:</div><div><br></div><div>1. scf run</div><div>2. ph run</div><div>3. q2r run</div><div><br></div><div>For all strains, the scf run is ok, but for some strains, after ph run I get this message at the end of the output file:</div><div><br></div><div><div>------------------------------<wbr>-------------------------</div><div>Primary job terminated normally, but 1 process returned</div><div>a non-zero exit code.. Per user-direction, the job has been aborted.</div><div>------------------------------<wbr>-------------------------</div><div>------------------------------<wbr>------------------------------<wbr>--------------</div><div>mpirun detected that one or more processes exited with non-zero status, thus causing</div><div>the job to be terminated. The first process to do so was:</div><div><br></div><div> Process name: [[47696,1],6]</div><div> Exit code: 28</div><div>------------------------------<wbr>------------------------------<wbr>--------------</div><div><br></div><div>and So, the file of force constants would not be generated. I really appreciate it if you guide me through this and let me know what to do to fix the problme?</div><div><br></div><div>Thanks,</div><div>Sina </div><div><div class="m_8910089600632127624gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div><div><div><div><div><br>Sina Malakpour Estalaki<br></div></div>PhD student <br></div></div>Department of Aerospace and Mechanical Engineering<br></div>University of Notre Dame</div><div>Notre Dame, IN, US</div><br></div></div></div></div></div></div></div></div></div>
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