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<p>Dear all, <br>
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<p>I want to run a phonon calculation on SiH4 but I keep getting the following error:</p>
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<p> <font color="#FF0000">task # 0<br>
from phq_readin : error # 1<br>
</font></p>
<p><font color="#FF0000"> cannot start from pw.x data file using Gamma-point tricks
<br>
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<p><font color="#FF0000"><font color="#000000">I should mention that I already ran the scf calculation of SiH4 and got the output file without any error.
<br>
</font></font></p>
<p><font color="#FF0000"><font color="#000000">Here is my input file of scf calculation:
<br>
</font></font></p>
<p><font color="#FF0000"><font color="#000000"><br>
</font></font></p>
<p><font color="#FF0000"><font color="#000000"> <font color="#006fc9">&control<br>
calculation='scf'<br>
pseudo_dir = './pseudo',<br>
outdir='./tmp/'<br>
title='Test Silane SiH4 gamma only'<br>
prefix='sih4'<br>
tprnfor=.true.<br>
/<br>
&system<br>
ibrav=2, celldm(1) =18.0, nat=5, ntyp= 2,<br>
ecutwfc =16.0<br>
/<br>
&electrons<br>
mixing_mode='plain'<br>
mixing_beta = 0.7,<br>
conv_thr = 1.0d-8<br>
/<br>
ATOMIC_SPECIES<br>
Si 28.086 Si.pz-vbc.UPF<br>
H 1.008 H.pz-vbc.UPF<br>
ATOMIC_POSITIONS (angstrom)<br>
Si 0.000 0.000 0.000<br>
H 0.816 0.816 0.816<br>
H -0.816 -0.816 0.816<br>
H -0.816 0.816 -0.816<br>
H 0.816 -0.816 -0.816<br>
K_POINTS (gamma)</font><br>
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<p><font color="#FF0000"><font color="#000000"><br>
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<p><font color="#FF0000"><font color="#000000"><br>
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<p><font color="#FF0000"><font color="#000000">And here is my input file of phonon calculation:
<br>
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<p><font color="#FF0000"><font color="#000000"><br>
</font></font></p>
<p><font color="#FF0000"><font color="#000000"><br>
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<p><font color="#FF0000"><font color="#000000"><font color="#006fc9">Normal modes for SiH4<br>
&inputph<br>
tr2_ph=1.0d-14,<br>
prefix='sih4',<br>
amass(1)=28.086,<br>
amass(2)=1.008,<br>
outdir= './tmp',<br>
epsil=.true.,<br>
trans=.true.,<br>
asr=.true.,<br>
fildyn='sih4.dyn',<br>
/<br>
0.0 0.0 0.0</font><br>
</font></font> <br>
</p>
<p><font color="#FF0000"><font color="#000000">Any help would be appreciated.<br>
</font></font></p>
<p><font color="#FF0000"><font color="#000000"><br>
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<p><font color="#FF0000"><font color="#000000"><br>
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<p><font color="#FF0000"><font color="#000000"><br>
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<p>Amir M. Mofrad<span> <br>
</span></p>
<p>University of Missouri<br>
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