Control{
        cpumax = 3600 sec  ! maximum cpu time
}

accuracy{
    cutoff_wf =  20.0 rydberg
    cutoff_cd =  80.0 rydberg
    num_bands = 8
    ksampling{
        mesh{  nx = 4, ny =  4, nz =  4   }
    }
}

structure{
    unit_cell_type = bravais
    unit_cell{
       a_vector =  10.44643926822318686407 0 0
       b_vector =  0 10.44643926822318686407 0
       c_vector =  0 0 10.44643926822318686407
    }
    symmetry{
        method = automatic
        tspace{
            lattice_system = facecentered
        }
    }
    atom_list{
         atoms{
         #tag  rx       ry         rz     element
             0.125     0.125     0.125     Si
            -0.125    -0.125    -0.125     Si
        }
    }
    element_list{ #tag element  atomicnumber
                          Si        14
    }
}

