[Pw_forum] Error ortho went bananas

dkartik dkartik at iitk.ac.in
Thu Jun 15 13:51:52 CEST 2017


Hello everyone  

I am getting an error ortho went bananas while running the following
code. As it was discussed in various pw forums we can get rid of this
problem by reducing dt or increasing ortho_max. But none of them helped.
Any small hint or help is welcomed. 

Thanks 
Kartikeya Dixit 
Ph.D Scholar 
IIT Kanpur, India  

&control 
    calculation='cp', 
    restart_mode='from_scratch', 
    nstep=10, iprint=20, isave=20, 
    dt=2, 
    ndr=90, ndw=91, 
    pseudo_dir='/home/bmrl/qe-6.0/pseudo/', 
    outdir='/home/bmrl/qe-6.0/tempdir/', 
 / 
 &system 
    ibrav=2, celldm(1)=14, celldm(2)=14, celldm(3)=14, 
    nat=96, ntyp=2, nbnd=256, nspin=1, 
    ecutwfc=20.0, ecutrho=80.0, 
    nr1b=16, nr2b=16, nr3b=16, 
    qcutz=150., q2sigma=2.0, ecfixed=16.0, 
 / 
 &electrons 
    electron_dynamics='damp', electron_damping=0.0002, 
    startingwfc='random', ampre=0.01, 
    emass=700., emass_cutoff=3., 
    orthogonalization='ortho',ortho_eps=1.D-4,ortho_max=20 

 / 
 &ions 
    ion_dynamics='none', 
    ion_radius(1)=1.0, ion_radius(2)=1.0, 
 / 
ATOMIC_SPECIES 
   O  16.00 O.pbe-hgh.UPF 
  Si  28.00 Si.pbe-hgh.UPF 
ATOMIC_POSITIONS angstrom 
 Si         9.97400        6.18200       10.09600 
O         10.73300        7.57300        9.81000 
O          9.21500        4.79100       10.38200 
Si         1.58400        4.73800        1.98600 
O          2.69700        3.91500        2.80700 
O          0.47000        5.56200        1.16400 
Si         8.91900        7.87100       14.01700 
O         10.26400        8.75600       14.02000 
O          7.57400        6.98600       14.01400 
Si        14.02300        5.59500       12.09600 
O         13.94600        6.40800       13.48400 
O         14.10000        4.78300       10.70700 
Si         0.28400        1.63200       13.19600 
O          0.16300        3.02000       14.00300 
O          0.40500        0.24400       12.38800 
Si         8.04100       13.89100        4.94300 
O          9.64300       13.73600        4.88500 
O          6.43900       14.04500        5.00000 
Si         9.73700        7.14700        5.54700 
O          9.33100        5.60800        5.78500 
O         10.14400        8.68800        5.30900 
Si        11.01100       14.02700        9.05600 
O          9.51100       14.01600        9.64300 
O         12.51100       14.03700        8.46900 
Si        12.27100        0.49400        4.99400 
O         11.35400        0.99800        3.77000 
O         13.18800       -0.00900        6.21900 
Si         3.33100        6.05100       13.38200 
O          2.64900        7.36400       14.01800 
O          4.01200        4.73700       12.74600 
Si        13.93200       12.22900       12.33800 
O         13.83300       10.64200       12.08500 
O         14.03100       13.81700       12.59100 
Si         2.91700       13.62900        2.13900 
O          1.69600       14.02100        3.11200 
O          4.13900       13.23700        1.16500 
Si         7.59600        0.62100        0.30500 
O          6.02600        0.78500        0.61900 
O          9.16800        0.45700       -0.01000 
Si         3.33900        0.25800        5.24900 
O          1.81800        0.51400        5.71000 
O          4.86100        0.00100        4.78900 
Si        14.02000       10.49300        6.34600 
O         14.02100        9.51000        7.62100 
O         14.01900       11.47600        5.07000 
Si         6.18400        0.91400       12.58900 
O          5.02200       -0.02300       11.98700 
O          7.34700        1.85300       13.19100 
Si         6.34900        9.75100        9.83900 
O          5.28500        9.24600       10.93600 
O          7.41500       10.25600        8.74100 
Si        13.06000        5.56100       -0.00200 
O         12.77900        7.14600       -0.03800 
O         13.34100        3.97600        0.03500 
Si        12.87400        0.93700       12.45700 
O         11.74500        1.91000       13.06600 
O         14.00300       -0.03600       11.84700 
Si         4.04900       14.00800       11.77600 
O          2.87100       14.02300       12.87400 
O          5.22700       13.99200       10.67800 
Si        11.31800       13.24000        0.74600 
O          9.92000       14.00000        0.50200 
O         12.71700       12.47900        0.99000 
Si         8.54500       12.84000       14.01100 
O          7.22000       11.92600       14.00200 
O          9.87100       13.75500       14.02000 
Si         2.13000        9.49300       -0.02700 
O          0.81400       10.42000       -0.01200 
O          3.44700        8.56600       -0.04200 
Si        14.00400        5.49500        5.24400 
O         14.00700        6.68000        4.15400 
O         14.00200        4.30900        6.33500 
Si         8.62100        5.94100        0.74100 
O          8.19700        7.28700       -0.03400 
O          9.04500        4.59400        1.51700 
Si         8.90000        0.81000        8.34400 
O          8.38300        1.48600        6.97800 
O          9.41800        0.13300        9.71200 
Si         2.95300       12.25800        7.00200 
O          3.65700       10.88400        6.54300 
O          2.24900       13.63200        7.46100 
Si         6.06100        8.81700        3.48800 
O          6.74400       10.16900        2.94200 
O          5.37800        7.46500        4.03600 
Si         5.05800        4.28800        8.36900 
O          4.52600        2.79300        8.64300 
O          5.59100        5.78300        8.09600 
Si        -0.01500        8.64000        4.81700 
O         -0.05300       10.16100        4.29200 
O          0.02400        7.11700        5.34200 
Si        -0.01200       10.62300       11.37400 
O         -0.00700       10.54000        9.76600 
O         -0.01700       10.70600       12.98200 
Si         0.67400        4.90100        9.33300 
O          0.01000        3.44100        9.19400 
O          1.33900        6.36200        9.47200
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