[Pw_forum] internal error, cannot braket Ef

Ngoc Linh Nguyen nnlinh at sissa.it
Wed Jun 23 10:23:10 CEST 2010


Thaneshwor Kaloni wrote:
> Dear All,
> I am getting error like below, please help anyone.
> Sincerely
> T P Kaloni
> S N B N C B S, Kolkata
>   Program PWSCF     v.4.1.2  starts ...
>      Today is 23Jun2010 at  8:56:40
>
>      For Norm-Conserving or Ultrasoft (Vanderbilt) Pseudopotentials or PAW
>
>      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...
>
>
>      bravais-lattice index     =            4
>      lattice parameter (a_0)   =       4.9000  a.u.
>      unit-cell volume          =     277.1327 (a.u.)^3
>      number of atoms/cell      =            2
>      number of atomic types    =            1
>      number of electrons       =         8.00
>      number of Kohn-Sham states=            4
>      kinetic-energy cutoff     =      65.0000  Ry
>      charge density cutoff     =     300.0000  Ry
>      convergence threshold     =      1.0E-09
>      mixing beta               =       0.7000
>      number of iterations used =            8  plain     mixing
>      Exchange-correlation      =  SLA  PW   TPSS TPSS (1476)
>
>      celldm(1)=   4.900000  celldm(2)=   0.000000  celldm(3)=   2.720000
>      celldm(4)=   0.000000  celldm(5)=   0.000000  celldm(6)=   0.000000
>
>      crystal axes: (cart. coord. in units of a_0)
>                a(1) = (  1.000000  0.000000  0.000000 ) 
>                a(2) = ( -0.500000  0.866025  0.000000 ) 
>                a(3) = (  0.000000  0.000000  2.720000 ) 
>
>      reciprocal axes: (cart. coord. in units 2 pi/a_0)
>                b(1) = (  1.000000  0.577350  0.000000 ) 
>                b(2) = (  0.000000  1.154701  0.000000 ) 
>                b(3) = (  0.000000  0.000000  0.367647 ) 
>
>
>      PseudoPot. # 1 for C  read from file C.tpss-mt.UPF
>      Pseudo is Norm-conserving, Zval =  4.0
>      Generated by new atomic code, or converted to UPF format
>      Using radial grid of 1983 points,  1 beta functions with:
>                 l(1) =   0
>
>      atomic species   valence    mass     pseudopotential
>         C              4.00    12.01070     C ( 1.00)
>
>      Starting magnetic structure
>      atomic species   magnetization
>         C            0.700
>
>      24 Sym.Ops. (with inversion)
>
>
>    Cartesian axes
>
>      site n.     atom                  positions (a_0 units)
>          1           C   tau(  1) = (   0.0000000   0.0000000   
> 0.0000000  )
>          2           C   tau(  2) = (   0.5000000   0.2886751   
> 0.0000000  )
>
>      number of k points=   48  gaussian broad. (Ry)=  0.0200     
> ngauss =   0
>                        cart. coord. in units 2pi/a_0
>         k(    1) = (   0.0833333   0.1443376   0.0459559), wk =   
> 0.0277778
>         k(    2) = (   0.0833333   0.1443376   0.1378676), wk =   
> 0.0277778
>         k(    3) = (   0.0833333   0.3367877   0.0459559), wk =   
> 0.0555556
>         k(    4) = (   0.0833333   0.3367877   0.1378676), wk =   
> 0.0555556
>         k(    5) = (   0.0833333   0.5292377   0.0459559), wk =   
> 0.0555556
>         k(    6) = (   0.0833333   0.5292377   0.1378676), wk =   
> 0.0555556
>         k(    7) = (   0.0833333  -0.4330127   0.0459559), wk =   
> 0.0555556
>         k(    8) = (   0.0833333  -0.4330127   0.1378676), wk =   
> 0.0555556
>         k(    9) = (   0.0833333  -0.2405626   0.0459559), wk =   
> 0.0555556
>         k(   10) = (   0.0833333  -0.2405626   0.1378676), wk =   
> 0.0555556
>         k(   11) = (   0.0833333  -0.0481125   0.0459559), wk =   
> 0.0277778
>         k(   12) = (   0.0833333  -0.0481125   0.1378676), wk =   
> 0.0277778
>         k(   13) = (   0.2500000   0.4330127   0.0459559), wk =   
> 0.0277778
>         k(   14) = (   0.2500000   0.4330127   0.1378676), wk =   
> 0.0277778
>         k(   15) = (   0.2500000   0.6254628   0.0459559), wk =   
> 0.0555556
>         k(   16) = (   0.2500000   0.6254628   0.1378676), wk =   
> 0.0555556
>         k(   17) = (   0.2500000  -0.3367877   0.0459559), wk =   
> 0.0555556
>         k(   18) = (   0.2500000  -0.3367877   0.1378676), wk =   
> 0.0555556
>         k(   19) = (   0.2500000  -0.1443376   0.0459559), wk =   
> 0.0277778
>         k(   20) = (   0.2500000  -0.1443376   0.1378676), wk =   
> 0.0277778
>         k(   21) = (   0.4166667   0.7216878   0.0459559), wk =   
> 0.0277778
>         k(   22) = (   0.4166667   0.7216878   0.1378676), wk =   
> 0.0277778
>         k(   23) = (   0.4166667  -0.2405626   0.0459559), wk =   
> 0.0277778
>         k(   24) = (   0.4166667  -0.2405626   0.1378676), wk =   
> 0.0277778
>         k(   25) = (   0.0833333   0.1443376   0.0459559), wk =   
> 0.0277778
>         k(   26) = (   0.0833333   0.1443376   0.1378676), wk =   
> 0.0277778
>         k(   27) = (   0.0833333   0.3367877   0.0459559), wk =   
> 0.0555556
>         k(   28) = (   0.0833333   0.3367877   0.1378676), wk =   
> 0.0555556
>         k(   29) = (   0.0833333   0.5292377   0.0459559), wk =   
> 0.0555556
>         k(   30) = (   0.0833333   0.5292377   0.1378676), wk =   
> 0.0555556
>         k(   31) = (   0.0833333  -0.4330127   0.0459559), wk =   
> 0.0555556
>         k(   32) = (   0.0833333  -0.4330127   0.1378676), wk =   
> 0.0555556
>         k(   33) = (   0.0833333  -0.2405626   0.0459559), wk =   
> 0.0555556
>         k(   34) = (   0.0833333  -0.2405626   0.1378676), wk =   
> 0.0555556
>         k(   35) = (   0.0833333  -0.0481125   0.0459559), wk =   
> 0.0277778
>         k(   36) = (   0.0833333  -0.0481125   0.1378676), wk =   
> 0.0277778
>         k(   37) = (   0.2500000   0.4330127   0.0459559), wk =   
> 0.0277778
>         k(   38) = (   0.2500000   0.4330127   0.1378676), wk =   
> 0.0277778
>         k(   39) = (   0.2500000   0.6254628   0.0459559), wk =   
> 0.0555556
>         k(   40) = (   0.2500000   0.6254628   0.1378676), wk =   
> 0.0555556
>         k(   41) = (   0.2500000  -0.3367877   0.0459559), wk =   
> 0.0555556
>         k(   42) = (   0.2500000  -0.3367877   0.1378676), wk =   
> 0.0555556
>         k(   43) = (   0.2500000  -0.1443376   0.0459559), wk =   
> 0.0277778
>         k(   44) = (   0.2500000  -0.1443376   0.1378676), wk =   
> 0.0277778
>         k(   45) = (   0.4166667   0.7216878   0.0459559), wk =   
> 0.0277778
>         k(   46) = (   0.4166667   0.7216878   0.1378676), wk =   
> 0.0277778
>         k(   47) = (   0.4166667  -0.2405626   0.0459559), wk =   
> 0.0277778
>         k(   48) = (   0.4166667  -0.2405626   0.1378676), wk =   
> 0.0277778
>
>      G cutoff =  182.4541  (  24355 G-vectors)     FFT grid: ( 30, 30, 75)
>      G cutoff =  158.1269  (  19701 G-vectors)  smooth grid: ( 25, 25, 72)
>
>      Largest allocated arrays     est. size (Mb)     dimensions
>         Kohn-Sham Wavefunctions         0.15 Mb     (   2467,   4)
>         NL pseudopotentials             0.08 Mb     (   2467,   2)
>         Each V/rho on FFT grid          2.06 Mb     (  67500,   2)
>         Each G-vector array             0.19 Mb     (  24355)
>         G-vector shells                 0.01 Mb     (   1262)
>      Largest temporary arrays     est. size (Mb)     dimensions
>         Auxiliary wavefunctions         0.60 Mb     (   2467,  16)
>         Each subspace H/S matrix        0.00 Mb     (     16,  16)
>         Each <psi_i|beta_j> matrix      0.00 Mb     (      2,   4)
>         Arrays for rho mixing           8.24 Mb     (  67500,   8)
>
>      Initial potential from superposition of free atoms
>
>      starting charge    7.99991, renormalised to    8.00000
>      Starting wfc are random
>
>      total cpu time spent up to now is      4.96 secs
>
>      per-process dynamical memory:    18.2 Mb
>
>      Self-consistent Calculation
>
>      iteration #  1     ecut=    65.00 Ry     beta=0.70
>      Davidson diagonalization with overlap
>      ethr =  1.00E-02,  avg # of iterations =  8.2
>
>  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
>      from efermig : error #         1
>      internal error, cannot braket Ef
>  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
>
>      stopping ...
Hardly to say anythings about problem if you don't send a input file.

Linh

P/s: As reminded many times that you should not post the question by  
replying with many questions in Digest.
 

>
>
>
> -- 
> ###################################
> ******************************************
> Thaneshwor Prashad Kaloni
> TWAS-BOSE FELLOW /JRF
> S N Bose national Centre for Basic Sciences
> Kolkata 700098,
> INDIA
> ------------------------------------------------------------------------
>
> _______________________________________________
> Pw_forum mailing list
> Pw_forum at pwscf.org
> http://www.democritos.it/mailman/listinfo/pw_forum
>   


-- 
-----------------------------------------------------
 Nguyen Ngoc Linh, PhD Student
 c/o:   SISSA & CNR-INFM Democritos,
        via Beirut 2-4, 34014 Trieste (Italy)
 email: nnlinh at sissa.it
 phone: +39 04 03787 319
 skype: ngoclinh84phys
-----------------------------------------------------
"The physics is theoretical but the fun is real"





More information about the users mailing list