hi,I just tried to run a supercell of graphene with 210 atoms. but my run 
doesn`t converg and it also runs so slow. do I have to add any extra line to my 
fdf to get the 
here is my fdf
SystemName          graphene    

SystemLabel         graphene

NumberOfAtoms     210

NumberOfSpecies     1

%block ChemicalSpeciesLabel

 1  6  C      # Species index, atomic number, species label

%endblock ChemicalSpeciesLabel

LatticeConstant  1 Ang  ## This is only valid for graphene case

%block LatticeVectors

27.600  0.00  0.00
 0.00   21.3  0.00
0.00   0.00    20.00
%endblock LatticeVectors

AtomicCoordinatesFormat  Ang

%block AtomicCoordinatesAndAtomicSpecies
......


%endblock AtomicCoordinatesAndAtomicSpecies

XC.functional GGA
 XC.authors    PBE

%block kgrid_Monkhorst_Pack
5 0 0 0.0
0 5 0 0.0
0 0  1  0.0
%endblock kgrid_Monkhorst_Pack

%block ProjectedDensityOfStates
-15.00 10.00 0.1 5000 eV
%endblock ProjectedDensityOfStates

%block PAO.Basis                 # Define Basis set
C           2                    # Species label, number of l-shells
 n=2   0   2                         # n, l, Nzeta
   4.192      3.432  
   1.000      1.000  
 n=2   1   2 P   1                   # n, l, Nzeta, Polarization, NzetaPol
   4.994      3.563  
   1.000      1.000  
%endblock PAO.Basis
SpinPolarized  .true.

MeshCutoff      350.0 Ry

#BandLinesScale  ReciprocalLatticeVectors

#%block BandLines
1  0.5   0.0  0.0   # X-point
20    0.0   0.0  0.0   # Gamma-point
20  0.5   0.0  0.0   # X-point
#%endblock BandLines

#WriteBands      True


MaxSCFIterations      500            # Maximum number of SCF iter

DM.Tolerance          0.0001          # Tolerance in maximum difference

DM.MixingWeight       0.12           # New DM amount for next SCF cycle

#DM.NumberPulay        4

SolutionMethod        Diagon        # OrderN or Diagon

LongOutput            T


Responder a