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[yshtogun@cas.usf.edu]

Dear abinit users!
 I have question about shiftk. Tutorial and manual said that” When the 
primitive vectors of the lattice do NOT form a FCC or a BCC lattice, the 
usual (shifted) Monkhorst-Pack grids are formed by using nshiftk=1 and shiftk 
0.5 0.5 0.5”.  I tray calculate energy for my 1D crystal, I used ngkpt 1 1 4 
but I am confuse about the value of shiftk. 
  Is the value of shiftk the same for 1D crystal like for 3D? I mean can I 
use default value for 1D calculation. 

 Thank you 
  Yaroslav!