[Pw_forum] internal error, cannot bracket Ef

Manu Hegde mhegde at uwaterloo.ca
Tue Dec 17 20:49:14 CET 2013


Please help me solving this issue. Here is both of my input and output
files. Please have a look!.

My input file,

 &CONTROL
                 calculation = 'scf' ,
                restart_mode = 'from_scratch' ,
                      outdir = '/home/owner/' ,
                      wfcdir = '/home/owner/' ,
                  pseudo_dir = '/host/qexpress/espresso-5.0.2/pseudo/' ,
                      prefix = 'ga203newscf' ,
 /
 &SYSTEM
                       ibrav = -12,
                           A = 12.23 ,
                           B = 3.040 ,
                           C = 5.807 ,
                       cosAB = 0 ,
                       cosAC = -0.99 ,
                       cosBC = 0 ,
                         nat = 30,
                        ntyp = 2,
                     ecutwfc = 70 ,
                     ecutrho = 800 ,
                       nosym = .false. ,
                   nosym_evc = .true. ,
                       noinv = .true. ,
                    no_t_rev = .true. ,
            force_symmorphic = .true. ,
                use_all_frac = .true. ,
                        nbnd = 75,
                  tot_charge = 0.000000,
                 occupations = 'smearing' ,
        one_atom_occupations = .false. ,
                     degauss = 0.01 ,
                    smearing = 'gaussian' ,
            exxdiv_treatment = 'gygi-baldereschi' ,
 /
 &ELECTRONS
            electron_maxstep = 200,
                    conv_thr = 5.D-8 ,
                 startingpot = 'atomic' ,
                 startingwfc = 'atomic' ,
                 mixing_mode = 'local-TF' ,
                 mixing_beta = 0.8 ,
                 mixing_ndim = 10,
             diagonalization = 'cg' ,
            diago_cg_maxiter = 10,
 /
ATOMIC_SPECIES
   Ga   31.00000  Ga.pbe-mt_fhi.UPF
    O    8.00000  O.pbe-kjpaw.UPF
ATOMIC_POSITIONS angstrom
   Ga      0.033521000    0.000000000    4.443286000    1  0  1
   Ga      0.033521000    3.031000000    4.443286000    1  1  1
   Ga     10.819250000    0.000000000    1.145753000    1  1  1
   Ga     10.819250000    3.031000000    1.145753000    1  1  1
   Ga      6.137522000    1.515500000    4.443286000    1  1  1
   Ga      4.715250000    1.515500000    1.145753000    1  1  1
   Ga      3.234596000    0.000000000    3.828492000    1  1  1
   Ga      3.234596000    3.031000000    3.828492000    1  1  1
   Ga      7.618176000    0.000000000    1.760547000    1  0  1
   Ga      7.618176000    3.031000000    1.760547000    1  1  1
   Ga      9.338596000    1.515500000    3.828492000    1  0  1
   Ga      1.514175000    1.515500000    1.760547000    1  1  1
    O      1.878808000    0.000000000    0.609205000    1  0  1
    O      1.878808000    3.031000000    0.609205000    1  1  1
    O      8.973964000    0.000000000    4.979834000    1  0  1
    O      8.973964000    3.031000000    4.979834000    1  1  1
    O      7.982808000    1.515500000    0.609205000    1  1  1
    O      2.869963000    1.515500000    4.979834000    1  1  1
    O      5.712295000    0.000000000    1.414027000    1  0  1
    O      5.712295000    3.031000000    1.414027000    1  1  1
    O      5.140476000    0.000000000    4.175012000    1  0  1
    O      5.140476000    3.031000000    4.175012000    1  1  1
    O     11.816296000    1.515500000    1.414027000    1  1  1
    O     -0.963524000    1.515500000    4.175012000    1  1  1
    O      9.501071000    0.000000000    2.453588000    1  1  1
    O      9.501071000    3.031000000    2.453588000    1  1  1
    O      1.351701000    0.000000000    3.135451000    1  0  1
    O      1.351701000    3.031000000    3.135451000    1  1  1
    O      3.397071000    1.515500000    2.453588000    1  0  1
    O      7.455700000    1.515500000    3.135451000    1  1  1
K_POINTS gamma

My output file is giving error


     Program PWSCF v.5.0.2 (svn rev. 9392) starts on 17Dec2013 at 14:41:50

     This program is part of the open-source Quantum ESPRESSO suite
     for quantum simulation of materials; please cite
         "P. Giannozzi et al., J. Phys.:Condens. Matter 21 395502 (2009);
          URL http://www.quantum-espresso.org",
     in publications or presentations arising from this work. More details
at
     http://www.quantum-espresso.org/quote.php

     Serial version

     Current dimensions of program PWSCF are:
     Max number of different atomic species (ntypx) = 10
     Max number of k-points (npk) =  40000
     Max angular momentum in pseudopotentials (lmaxx) =  3
     Waiting for input...
     Reading input from standard input
               file Ga.pbe-mt_fhi.UPF: wavefunction(s)  4d 4f renormalized

     gamma-point specific algorithms are used

     G-vector sticks info
     --------------------
     sticks:   dense  smooth     PW     G-vecs:    dense   smooth      PW
     Sum        8427    2961    735                78445    16247    2039
     Tot        4214    1481    368



     bravais-lattice index     =          -12
     lattice parameter (alat)  =      23.1114  a.u.
     unit-cell volume          =     205.5299 (a.u.)^3
     number of atoms/cell      =           30
     number of atomic types    =            2
     number of electrons       =       144.00
     number of Kohn-Sham states=           75
     kinetic-energy cutoff     =      70.0000  Ry
     charge density cutoff     =     800.0000  Ry
     convergence threshold     =      5.0E-08
     mixing beta               =       0.8000
     number of iterations used =           10  local-TF  mixing
     Exchange-correlation      =  SLA  PW   PBX  PBC ( 1 4 3 4 0)
     EXX-fraction              =        0.00

     celldm(1)=  23.111351  celldm(2)=   0.248569  celldm(3)=   0.474816
     celldm(4)=   0.000000  celldm(5)=  -0.990000  celldm(6)=   0.000000

     crystal axes: (cart. coord. in units of alat)
               a(1) = (   1.000000   0.000000   0.000000 )
               a(2) = (   0.000000   0.248569   0.000000 )
               a(3) = (  -0.470068   0.000000   0.066981 )

     reciprocal axes: (cart. coord. in units 2 pi/alat)
               b(1) = (  1.000000 -0.000000  7.017924 )
               b(2) = (  0.000000  4.023026 -0.000000 )
               b(3) = (  0.000000  0.000000 14.929597 )


     PseudoPot. # 1 for Ga read from file:
     /host/qexpress/espresso-5.0.2/pseudo/Ga.pbe-mt_fhi.UPF
     MD5 check sum: d2addd91d8bcf9a88adfbbdfd2637de8
     Pseudo is Norm-conserving, Zval =  3.0
     Generated using FHI98PP, converted with fhi2upf.x v.5.0.2
     Using radial grid of  529 points,  3 beta functions with:
                l(1) =   1
                l(2) =   2
                l(3) =   3

     PseudoPot. # 2 for  O read from file:
     /host/qexpress/espresso-5.0.2/pseudo/O.pbe-kjpaw.UPF
     MD5 check sum: 90f4868982d1b5f8aada8373f3a0510a
     Pseudo is Projector augmented-wave + core cor, Zval =  6.0
     Generated using "atomic" code by A. Dal Corso (espresso distribution)
     Shape of augmentation charge: BESSEL
     Using radial grid of 1095 points,  4 beta functions with:
                l(1) =   0
                l(2) =   0
                l(3) =   1
                l(4) =   1
     Q(r) pseudized with 0 coefficients


     atomic species   valence    mass     pseudopotential
        Ga             3.00    31.00000     Ga( 1.00)
        O              6.00     8.00000      O( 1.00)

     No symmetry found



   Cartesian axes

     site n.     atom                  positions (alat units)
         1           Ga  tau(   1) = (   0.0027409   0.0000000   0.3633104
 )
         2           Ga  tau(   2) = (   0.0027409   0.2478332   0.3633104
 )
         3           Ga  tau(   3) = (   0.8846484   0.0000000   0.0936838
 )
         4           Ga  tau(   4) = (   0.8846484   0.2478332   0.0936838
 )
         5           Ga  tau(   5) = (   0.5018415   0.1239166   0.3633104
 )
         6           Ga  tau(   6) = (   0.3855478   0.1239166   0.0936838
 )
         7           Ga  tau(   7) = (   0.2644805   0.0000000   0.3130410
 )
         8           Ga  tau(   8) = (   0.2644805   0.2478332   0.3130410
 )
         9           Ga  tau(   9) = (   0.6229089   0.0000000   0.1439531
 )
        10           Ga  tau(  10) = (   0.6229089   0.2478332   0.1439531
 )
        11           Ga  tau(  11) = (   0.7635810   0.1239166   0.3130410
 )
        12           Ga  tau(  12) = (   0.1238083   0.1239166   0.1439531
 )
        13           O   tau(  13) = (   0.1536229   0.0000000   0.0498123
 )
        14           O   tau(  14) = (   0.1536229   0.2478332   0.0498123
 )
        15           O   tau(  15) = (   0.7337665   0.0000000   0.4071818
 )
        16           O   tau(  16) = (   0.7337665   0.2478332   0.4071818
 )
        17           O   tau(  17) = (   0.6527235   0.1239166   0.0498123
 )
        18           O   tau(  18) = (   0.2346658   0.1239166   0.4071818
 )
        19           O   tau(  19) = (   0.4670724   0.0000000   0.1156195
 )
        20           O   tau(  20) = (   0.4670724   0.2478332   0.1156195
 )
        21           O   tau(  21) = (   0.4203169   0.0000000   0.3413747
 )
        22           O   tau(  22) = (   0.4203169   0.2478332   0.3413747
 )
        23           O   tau(  23) = (   0.9661730   0.1239166   0.1156195
 )
        24           O   tau(  24) = (  -0.0787836   0.1239166   0.3413747
 )
        25           O   tau(  25) = (   0.7768660   0.0000000   0.2006204
 )
        26           O   tau(  26) = (   0.7768660   0.2478332   0.2006204
 )
        27           O   tau(  27) = (   0.1105234   0.0000000   0.2563738
 )
        28           O   tau(  28) = (   0.1105234   0.2478332   0.2563738
 )
        29           O   tau(  29) = (   0.2777654   0.1239166   0.2006204
 )
        30           O   tau(  30) = (   0.6096239   0.1239166   0.2563738
 )

     number of k points=     1  gaussian smearing, width (Ry)=  0.0100
                       cart. coord. in units 2pi/alat
        k(    1) = (   0.0000000   0.0000000   0.0000000), wk =   2.0000000

     Dense  grid:    39223 G-vectors     FFT dimensions: ( 216,  54, 100)

     Smooth grid:     8124 G-vectors     FFT dimensions: ( 125,  32,  60)

     Largest allocated arrays     est. size (Mb)     dimensions
        Kohn-Sham Wavefunctions         1.17 Mb     (   1020,   75)
        NL pseudopotentials             5.04 Mb     (   1020,  324)
        Each V/rho on FFT grid         17.80 Mb     (1166400)
        Each G-vector array             0.30 Mb     (  39223)
        G-vector shells                 0.15 Mb     (  20196)
     Largest temporary arrays     est. size (Mb)     dimensions
        Each subspace H/S matrix        0.04 Mb     (  75,  75)
        Each <psi_i|beta_j> matrix      0.19 Mb     (    324,   75)
        Arrays for rho mixing         177.98 Mb     (1166400,  10)
     writing wfc files to a dedicated directory

     Initial potential from superposition of free atoms

     starting charge  143.97359, renormalised to  144.00000
     Starting wfc are  264 atomic wfcs

     total cpu time spent up to now is       21.7 secs

     per-process dynamical memory:   132.0 Mb

     Self-consistent Calculation

     iteration #  1     ecut=    70.00 Ry     beta=0.80
     CG style diagonalization
     c_bands:  1 eigenvalues not converged
     ethr =  1.00E-02,  avg # of iterations = 20.8

     total cpu time spent up to now is       65.9 secs

     total energy              =   31516.38208631 Ry
     Harris-Foulkes estimate   =   31476.13294564 Ry
     estimated scf accuracy    <     114.99297619 Ry

     iteration #  2     ecut=    70.00 Ry     beta=0.80
     CG style diagonalization
     c_bands:  1 eigenvalues not converged
     ethr =  1.00E-02,  avg # of iterations =  3.5

     negative rho (up, down):  0.100E+00 0.000E+00

     total cpu time spent up to now is       78.7 secs

     total energy              =   31524.18543841 Ry
     Harris-Foulkes estimate   =   31510.98770742 Ry
     estimated scf accuracy    <      26.19835839 Ry

     iteration #  3     ecut=    70.00 Ry     beta=0.80
     CG style diagonalization
     c_bands:  2 eigenvalues not converged
     ethr =  1.00E-02,  avg # of iterations =  4.7

 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
     Error in routine efermig (1):
     internal error, cannot bracket Ef
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

     stopping ...

Regards,
Manu
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