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<p>Actually you need to remove this: <span>fildvscf='dvscf'</span></p>
<p>Also I would remove this: <span>electron_phonon= " "</span></p>
<p><span><br>
</span></p>
<p><span>Iurii<br>
<span></span></span></p>
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<font size="3" face="'Times New Roman', Times, serif" color="808080">--<br>
Dr. Iurii TIMROV<br>
Postdoctoral Researcher<br>
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<font size="3" face="'Times New Roman', Times, serif" color="808080"><font size="3" face="'Times New Roman', Times, serif" color="808080">Swiss Federal Institute of Technology Lausanne (EPFL<font color="808080"><font face="'Times New Roman', Times, serif">)</font></font></font><br>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> users <users-bounces@lists.quantum-espresso.org> on behalf of Timrov Iurii <iurii.timrov@epfl.ch><br>
<b>Sent:</b> Tuesday, December 1, 2020 1:27:51 PM<br>
<b>To:</b> Quantum Espresso users Forum<br>
<b>Subject:</b> Re: [QE-users] Error in routine diropn (34): can't open a connected unit</font>
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<p>Can you share your PW and PH input and output files using Google Drive? Did you check whether the PW calculation finished successfully?</p>
<p><br>
</p>
<p>If the PW calculation finished successfully, then you can try to remove <span>
recover=.true.</span> in the PH input and try again.<br>
</p>
<p><br>
</p>
<p>Greetings,</p>
<p>Iurii<br>
</p>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> users <users-bounces@lists.quantum-espresso.org> on behalf of Dr. K. C. Bhamu <kcbhamu85@gmail.com><br>
<b>Sent:</b> Tuesday, December 1, 2020 12:04:50 PM<br>
<b>To:</b> Quantum Espresso users Forum<br>
<b>Subject:</b> [QE-users] Error in routine diropn (34): can't open a connected unit</font>
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<div class="gmail_default" style="font-size:large">Dear Users</div>
<div class="gmail_default" style="font-size:large">I am trying to calculate the phonon band structure of Ni(OH)2 slab on a well converged scf.</div>
<div class="gmail_default" style="font-size:large"><br>
</div>
<div class="gmail_default" style="font-size:large">I am using QE version 6.6 (also tried 6.5 and 6.4.1). QE is compiled with the mkl-2020.2.254 parallel library.</div>
<div class="gmail_default" style="font-size:large">I am getting below error:</div>
<div class="gmail_default" style="font-size:large"><br>
Error in routine diropn (34):<br>
can't open a connected unit<br>
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%<br>
<br>
stopping ...<br>
</div>
<div class="gmail_default" style="font-size:large"><br>
</div>
<div class="gmail_default" style="font-size:large">I have checked the mailing list but it could not help me.</div>
<div class="gmail_default" style="font-size:large">For the bulk system, it is running well.</div>
<div class="gmail_default" style="font-size:large"><br>
</div>
<div class="gmail_default" style="font-size:large">Below are my <a href="http://qe.in">
qe.in</a> and <a href="http://ph.in">ph.in</a> files:</div>
<div class="gmail_default" style="font-size:large"><br>
</div>
<div class="gmail_default" style="font-size:large">&CONTROL<br>
calculation = 'scf'<br>
outdir = './tmp'<br>
pseudo_dir = './'<br>
prefix = 'pwscf'<br>
verbosity = 'default'<br>
etot_conv_thr = 0.00001<br>
forc_conv_thr = 0.0001<br>
nstep = 400<br>
tstress = .true.<br>
tprnfor = .true.<br>
<br>
/<br>
<br>
&SYSTEM<br>
ibrav = 0<br>
celldm(1)=42.3160703759d0,<br>
nat = 15<br>
ntyp = 3<br>
ecutwfc = 85<br>
ecutrho = 680<br>
starting_magnetization(1)= 1,<br>
occupations='smearing', smearing='mv', degauss=0.005,<br>
nspin=2,<br>
lda_plus_u=.true. Hubbard_U(1)=5.5<br>
<br>
/<br>
&ELECTRONS<br>
electron_maxstep = 700<br>
conv_thr = 1.0D-8<br>
/<br>
&IONS<br>
ion_dynamics = 'bfgs'<br>
/<br>
&CELL<br>
/<br>
ATOMIC_SPECIES<br>
Ni 58.6934 ni_pbe_v1.4.uspp.F.UPF<br>
H 1.00794 H.pbe-rrkjus_psl.1.0.0.UPF<br>
O 15.9994 O.pbe-n-kjpaw_psl.0.1.UPF<br>
<br>
ATOMIC_POSITIONS {crystal}<br>
Ni 0.4086271180 0.2500000000 0.0562779067<br>
Ni 0.5310297978 0.7500000000 0.1575988843<br>
Ni 0.6555917806 0.2500000000 0.2252620504<br>
H 0.3556718912 0.7500000000 0.7569475855<br>
H 0.4905989850 0.2500000000 0.7519547270<br>
H 0.6813126358 0.7500000000 0.8495914755<br>
H 0.3051177957 0.2500000000 0.2908234852<br>
H 0.4287025160 0.7500000000 0.4856771252<br>
H 0.5663785349 0.2500000000 0.5842143961<br>
O 0.3991582306 0.7500000000 0.7744084930<br>
O 0.5245603948 0.2500000000 0.8820391483<br>
O 0.6867859121 0.7500000000 1.0544632655<br>
O 0.3217306969 0.2500000000 0.0997462181<br>
O 0.4457256438 0.7500000000 0.2821321300<br>
O 0.5751880668 0.2500000000 0.3748931091<br>
<br>
CELL_PARAMETERS {alat}<br>
1.000000000000d0 0.000000000000d0 0.000000000000d0<br>
0.000000000000d0 0.142952837309d0 0.000000000000d0<br>
0.000000000000d0 0.000000000000d0 0.209983610730d0<br>
<br>
K_POINTS automatic<br>
1 4 4 0 0 0<br>
</div>
<div class="gmail_default" style="font-size:large"><br>
</div>
<div class="gmail_default" style="font-size:large"><br>
</div>
<div class="gmail_default" style="font-size:large"><a href="http://ph.in">ph.in</a></div>
<div class="gmail_default" style="font-size:large"><br>
</div>
<div class="gmail_default" style="font-size:large">&inputph<br>
recover=.true.,<br>
tr2_ph = 1.0d-12<br>
prefix ='pwscf'<br>
alpha_mix =0.3<br>
ldisp = .true.,<br>
trans=.true.,<br>
fildvscf='dvscf'<br>
electron_phonon= " "<br>
nq1=1<br>
nq2=4<br>
nq3=4<br>
outdir ='./tmp'<br>
fildyn = 'slab.dyn'<br>
/<br>
</div>
<div class="gmail_default" style="font-size:large"><br>
</div>
<div class="gmail_default" style="font-size:large"><br>
</div>
<div class="gmail_default" style="font-size:large">Any suggestion will be appreciated.</div>
<div class="gmail_default" style="font-size:large"><br>
</div>
<div class="gmail_default" style="font-size:large">Thank you very much.</div>
<div class="gmail_default" style="font-size:large"><br>
</div>
<div class="gmail_default" style="font-size:large"><br>
</div>
<div class="gmail_default" style="font-size:large">K.C. Bhamu</div>
<div class="gmail_default" style="font-size:large">Postdoctoral Fellow</div>
<div class="gmail_default" style="font-size:large">University of Ulsan</div>
<div class="gmail_default" style="font-size:large">ROK</div>
<div class="gmail_default" style="font-size:large"><br>
</div>
<div class="gmail_default" style="font-size:large"></div>
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