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I am trying to obtain the DOS (electronic) for a bilayer graphene when a homogeneous electric field is applied but the scf convergence is not being achieved and a lot of messages "c_bands: eigenvalues not converged" are displayed. I checked my input..I cannot see anything wrong..My conv_thresh is small enough..I will display my input and the output will be attached (i stopped the compilation at some point):<BR>
<BR>
thanks<BR>
<BR>
Elie Moujaes<BR>
University of Nottingham<BR>
NG7 2RD <BR>
UK<BR>
<BR>
The scf input is:<BR>
<BR>
<P class=MsoPlainText style="MARGIN: 0in 0in 0pt"><SPAN lang=EN-GB style="FONT-FAMILY: 'Courier New'"><FONT size=3><SPAN style="mso-spacerun: yes"> </SPAN>&control<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p></FONT></SPAN></P>
<P class=MsoPlainText style="MARGIN: 0in 0in 0pt"><SPAN lang=EN-GB style="FONT-FAMILY: 'Courier New'"><FONT size=3><SPAN style="mso-spacerun: yes"> </SPAN>prefix='bi graphene',<o:p></o:p></FONT></SPAN></P>
<P class=MsoPlainText style="MARGIN: 0in 0in 0pt"><SPAN lang=EN-GB style="FONT-FAMILY: 'Courier New'"><FONT size=3><SPAN style="mso-spacerun: yes"> </SPAN>calculation='scf',<o:p></o:p></FONT></SPAN></P>
<P class=MsoPlainText style="MARGIN: 0in 0in 0pt"><SPAN lang=EN-GB style="FONT-FAMILY: 'Courier New'"><FONT size=3><SPAN style="mso-spacerun: yes"> </SPAN>restart_mode='from_scratch',<o:p></o:p></FONT></SPAN></P>
<P class=MsoPlainText style="MARGIN: 0in 0in 0pt"><SPAN lang=EN-GB style="FONT-FAMILY: 'Courier New'"><FONT size=3><SPAN style="mso-spacerun: yes"> </SPAN>lelfield = .true.,<o:p></o:p></FONT></SPAN></P>
<P class=MsoPlainText style="MARGIN: 0in 0in 0pt"><FONT size=3><SPAN lang=EN-GB style="FONT-FAMILY: 'Courier New'"><SPAN style="mso-spacerun: yes"> </SPAN></SPAN><SPAN lang=PT-BR style="FONT-FAMILY: 'Courier New'; mso-ansi-language: PT-BR">pseudo_dir = '/espresso-4.2/pseudo/',<o:p></o:p></SPAN></FONT></P>
<P class=MsoPlainText style="MARGIN: 0in 0in 0pt"><FONT size=3><SPAN lang=PT-BR style="FONT-FAMILY: 'Courier New'; mso-ansi-language: PT-BR"><SPAN style="mso-spacerun: yes"> </SPAN></SPAN><SPAN lang=EN-GB style="FONT-FAMILY: 'Courier New'">outdir='/tmp/results_MOUJAES/'<o:p></o:p></SPAN></FONT></P>
<P class=MsoPlainText style="MARGIN: 0in 0in 0pt"><SPAN lang=EN-GB style="FONT-FAMILY: 'Courier New'"><FONT size=3><SPAN style="mso-spacerun: yes"> </SPAN>/<o:p></o:p></FONT></SPAN></P>
<P class=MsoPlainText style="MARGIN: 0in 0in 0pt"><SPAN lang=EN-GB style="FONT-FAMILY: 'Courier New'"><FONT size=3><SPAN style="mso-spacerun: yes"> </SPAN>&system<SPAN style="mso-spacerun: yes"> </SPAN><o:p></o:p></FONT></SPAN></P>
<P class=MsoPlainText style="MARGIN: 0in 0in 0pt"><SPAN lang=EN-GB style="FONT-FAMILY: 'Courier New'"><FONT size=3><SPAN style="mso-spacerun: yes"> </SPAN>ibrav=<SPAN style="mso-spacerun: yes"> </SPAN>4, celldm(1) =4.608737, celldm(3)=5.330410, nat=4, ntyp= 1,<o:p></o:p></FONT></SPAN></P>
<P class=MsoPlainText style="MARGIN: 0in 0in 0pt"><SPAN lang=EN-GB style="FONT-FAMILY: 'Courier New'"><FONT size=3><SPAN style="mso-spacerun: yes"> </SPAN>ecutwfc = 60.D0, nosym=.true.,occupations='smearing', smearing='XYZ', degauss=0.01<o:p></o:p></FONT></SPAN></P>
<P class=MsoPlainText style="MARGIN: 0in 0in 0pt"><SPAN lang=EN-GB style="FONT-FAMILY: 'Courier New'"><FONT size=3>/<o:p></o:p></FONT></SPAN></P>
<P class=MsoPlainText style="MARGIN: 0in 0in 0pt"><SPAN lang=EN-GB style="FONT-FAMILY: 'Courier New'"><FONT size=3><SPAN style="mso-spacerun: yes"> </SPAN>&electrons<o:p></o:p></FONT></SPAN></P>
<P class=MsoPlainText style="MARGIN: 0in 0in 0pt"><SPAN lang=EN-GB style="FONT-FAMILY: 'Courier New'"><FONT size=3><SPAN style="mso-spacerun: yes"> </SPAN>conv_thr=1.D-8,<SPAN style="mso-spacerun: yes"> </SPAN><o:p></o:p></FONT></SPAN></P>
<P class=MsoPlainText style="MARGIN: 0in 0in 0pt"><SPAN lang=EN-GB style="FONT-FAMILY: 'Courier New'"><FONT size=3><SPAN style="mso-spacerun: yes"> </SPAN>mixing_beta=0.1D0,<o:p></o:p></FONT></SPAN></P>
<P class=MsoPlainText style="MARGIN: 0in 0in 0pt"><SPAN lang=EN-GB style="FONT-FAMILY: 'Courier New'"><FONT size=3><SPAN style="mso-spacerun: yes"> </SPAN>mixing_mode='local-TF'<o:p></o:p></FONT></SPAN></P>
<P class=MsoPlainText style="MARGIN: 0in 0in 0pt"><SPAN lang=EN-GB style="FONT-FAMILY: 'Courier New'"><FONT size=3><SPAN style="mso-spacerun: yes"> </SPAN>efield_cart(1) = 0.0,<o:p></o:p></FONT></SPAN></P>
<P class=MsoPlainText style="MARGIN: 0in 0in 0pt"><SPAN lang=EN-GB style="FONT-FAMILY: 'Courier New'"><FONT size=3><SPAN style="mso-spacerun: yes"> </SPAN>efield_cart(2) = 0.0,<o:p></o:p></FONT></SPAN></P>
<P class=MsoPlainText style="MARGIN: 0in 0in 0pt"><SPAN lang=EN-GB style="FONT-FAMILY: 'Courier New'"><FONT size=3><SPAN style="mso-spacerun: yes"> </SPAN>efield_cart(3) = 0.00275021,<o:p></o:p></FONT></SPAN></P>
<P class=MsoPlainText style="MARGIN: 0in 0in 0pt"><SPAN lang=EN-GB style="FONT-FAMILY: 'Courier New'"><FONT size=3><SPAN style="mso-spacerun: yes"> </SPAN>/<o:p></o:p></FONT></SPAN></P>
<P class=MsoPlainText style="MARGIN: 0in 0in 0pt"><SPAN lang=EN-GB style="FONT-FAMILY: 'Courier New'"><FONT size=3>ATOMIC_SPECIES<o:p></o:p></FONT></SPAN></P>
<P class=MsoPlainText style="MARGIN: 0in 0in 0pt"><SPAN lang=EN-GB style="FONT-FAMILY: 'Courier New'"><FONT size=3><SPAN style="mso-spacerun: yes"> </SPAN>C<SPAN style="mso-spacerun: yes"> </SPAN>12.00000<SPAN style="mso-spacerun: yes"> </SPAN>C.pz-rrkjus.UPF<o:p></o:p></FONT></SPAN></P>
<P class=MsoPlainText style="MARGIN: 0in 0in 0pt"><SPAN lang=EN-GB style="FONT-FAMILY: 'Courier New'"><FONT size=3>ATOMIC_POSITIONS crystal<o:p></o:p></FONT></SPAN></P>
<P class=MsoPlainText style="MARGIN: 0in 0in 0pt"><SPAN lang=EN-GB style="FONT-FAMILY: 'Courier New'"><FONT size=3><SPAN style="mso-spacerun: yes"> </SPAN>C 0.000000<SPAN style="mso-spacerun: yes"> </SPAN>0.000000<SPAN style="mso-spacerun: yes"> </SPAN>0.000000<SPAN style="mso-spacerun: yes"> </SPAN><o:p></o:p></FONT></SPAN></P>
<P class=MsoPlainText style="MARGIN: 0in 0in 0pt"><SPAN lang=EN-GB style="FONT-FAMILY: 'Courier New'"><FONT size=3><SPAN style="mso-spacerun: yes"> </SPAN>C 0.000000<SPAN style="mso-spacerun: yes"> </SPAN>0.000000<SPAN style="mso-spacerun: yes"> </SPAN>0.257692 <o:p></o:p></FONT></SPAN></P>
<P class=MsoPlainText style="MARGIN: 0in 0in 0pt"><SPAN lang=EN-GB style="FONT-FAMILY: 'Courier New'"><FONT size=3><SPAN style="mso-spacerun: yes"> </SPAN>C 0.333333<SPAN style="mso-spacerun: yes"> </SPAN>-0.33333<SPAN style="mso-spacerun: yes"> </SPAN>0.000000<SPAN style="mso-spacerun: yes"> </SPAN><o:p></o:p></FONT></SPAN></P>
<P class=MsoPlainText style="MARGIN: 0in 0in 0pt"><SPAN lang=EN-GB style="FONT-FAMILY: 'Courier New'"><FONT size=3><SPAN style="mso-spacerun: yes"> </SPAN>C -0.333333<SPAN style="mso-spacerun: yes"> </SPAN>0.33333<SPAN style="mso-spacerun: yes"> </SPAN>0.257692<SPAN style="mso-spacerun: yes"> </SPAN><o:p></o:p></FONT></SPAN></P>
<P class=MsoPlainText style="MARGIN: 0in 0in 0pt"><SPAN lang=EN-GB style="FONT-FAMILY: 'Courier New'"><o:p><FONT size=3> </FONT></o:p></SPAN></P>
<P class=MsoPlainText style="MARGIN: 0in 0in 0pt"><SPAN lang=EN-GB style="FONT-FAMILY: 'Courier New'"><FONT size=3>K_POINTS automatic<o:p></o:p></FONT></SPAN></P>
<P class=MsoPlainText style="MARGIN: 0in 0in 0pt"><SPAN lang=EN-GB style="FONT-FAMILY: 'Courier New'"><FONT size=3><SPAN style="mso-spacerun: yes"> </SPAN>20 20 1<SPAN style="mso-spacerun: yes"> </SPAN>0 0 0<SPAN style="mso-spacerun: yes"> </SPAN><o:p></o:p></FONT></SPAN></P>
<P class=MsoPlainText style="MARGIN: 0in 0in 0pt"><SPAN lang=EN-GB style="FONT-FAMILY: 'Courier New'"><o:p><FONT size=3> </FONT></o:p></SPAN></P>
Many thanks again..<BR>
<BR>
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