<div dir="ltr"><div><div><br>Respected Experts,<br><br>I wish to calculate the
Vibrational free energy of bcc iron ferrite using the fqha.x command.
For that I want to calculate fephdos.<br><br> I started modifying the qe-6.2-examples/PHonon/<wbr>examples/example02. The examples was for AlAs. I modified it as far as I could. <br><br>I got the following errors while running it:<br clear="all"><br>------------------------------------------------------------------------------------------------------------<br>/home/krishna/QE/qe-6.2-examples/PHonon/examples/example02 : starting<br><br>This example shows how to calculate interatomic force constants in<br>real space for Fe.<br><br> executables directory: /home/krishna/QE/qe-6.2/bin<br> pseudo directory: /home/krishna/QE/qe-6.2/pseudo<br> temporary directory: /home/krishna/QE/qe-6.2/tmpdir<br> checking that needed directories and files exist... done<br><br> running pw.x as: /home/krishna/QE/qe-6.2/bin/pw.x <br> running ph.x as: /home/krishna/QE/qe-6.2/bin/ph.x <br> running q2r.x as: /home/krishna/QE/qe-6.2/bin/q2r.x <br> running matdyn.x as: /home/krishna/QE/qe-6.2/bin/matdyn.x <br> running plotband.x as: /home/krishna/QE/qe-6.2/bin/plotband.x <br> running gnuplot as: /usr/bin/gnuplot<br><br> cleaning /home/krishna/QE/qe-6.2/tmpdir... done<br> running the scf calculation..../run_exampleFe: line 152: check_failure: command not found<br> done<br> running the phonon calculation ..../run_exampleFe: line 172: check_failure: command not found<br> done<br> transforming C(q) => C(R)...STOP 1<br>./run_exampleFe: line 183: check_failure: command not found<br> done<br> recalculating omega(q) from C(R)...At line 795 of file matdyn.f90 (unit = 1, file = '�m ')<br>Fortran runtime error: File 'fe444.fc' does not exist<br>./run_exampleFe: line 202: check_failure: command not found<br> done<br> writing the phonon dispersions in freq.plot...STOP Error reading file header<br>./run_exampleFe: line 216: check_failure: command not found<br> done<br> creating the postscript file fe.dispersion.ps..."gnuplot.tmp", line 24: warning: Skipping unreadable file "freq.plot"<br>"gnuplot.tmp", line 24: No data in plot<br><br>./run_exampleFe: line 250: check_failure: command not found<br> done<br> calculating phonon DOS ...At line 795 of file matdyn.f90 (unit = 1, file = '�Mk ')<br>Fortran runtime error: File 'fe444.fc' does not exist<br>./run_exampleFe: line 264: check_failure: command not found<br> done<br> generating plot of phonon_dos in the file fe.phdos.ps..."gnuplot1.tmp", line 9: warning: Skipping unreadable file "fe.phdos"<br>"gnuplot1.tmp", line 9: No data in plot<br><br>./run_exampleFe: line 283: check_failure: command not found<br> done<br><br>/home/krishna/QE/qe-6.2-examples/PHonon/examples/example02: done<br>[krishna@krishna example02]$ <br>-----------------------------------------------------------------------------------------------------------------<br><br><br>Can you please guide me with correction of the
problem. Or else if there is some example with phdos calculation of bcc
iron ferrite please help me with that.<br><br>I am including the modified set up so that you can possibly guide me with identifying the error.<br><br></div>Another issue I noted is that fe.dyn1 to fe.dyn13 is created in xml format.<br><br></div>And q2r.out gave the error:<br><br> Error in routine q2r (1):<br> file fe.dyn1 missing!<br><div><div><br>Thanks,<br>Best regards,<br>Krishnendu <br><br>-- <br><div class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div>Dr. Krishnendu Mukherjee,</div></div><div><br></div><div>Principal Scientist,</div><div>CSIR-NML,</div><div>Jamshedpur.</div></div></div></div></div></div></div></div></div>
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