Hi, PWSCF users<br><br>I met a strange thing when I used pw.x (v 4.0.2) calculating bands of rutile. When the nbnd is set over 100, the program stuck in some k-points indefinitely. The program didn't give any error messages but just stopped response. I'm wondering if somebody has similar experiences and can tell what happend. The other parameters are as follows:<br>
<br>&control<br> calculation = 'bands'<br> prefix = 'Rutile'<br> pseudo_dir = "./"<br> outdir = "./"<br> verbosity='high'<br> wf_collect=.true.<br>/<br>&system<br>
ibrav= 6,<br> celldm(1) = 8.68065, celldm(3) = 0.64409,<br> nat= 6, ntyp = 2,<br> ecutwfc =80.0, nbnd=160<br> nr1=50,nr2=50,nr3=32<br>/<br>&electrons<br> diagonalization = 'cg'<br> mixing_mode = 'plain'<br>
mixing_beta = 0.7<br>/<br>ATOMIC_SPECIES<br> Ti 47.867 22-Ti.LDA.fhi.UPF<br> O 15.9994 08-O.LDA.fhi.UPF<br>ATOMIC_POSITIONS crystal<br> Ti 0.0000 0.0000 0.0000<br> Ti 0.5000 0.5000 0.5000<br> O 0.3048 0.3048 0.0000<br>
O 0.6952 0.6952 0.0000<br> O 0.8048 0.1952 0.5000<br> O 0.1952 0.8048 0.5000<br>K_POINTS crystal<br> 288<br><br><br>Best, <br><br>Wei<br>