[Pw_forum] symmetry problem with Si lattice

[Ezad Shojaee]

Hi
i have a silly problem about Si lattice. I defined it as an SC(simple cubic) with 8 atoms per basis:
 
ATOMIC_POSITIONS Si 0.00 0.00 0.00  Si 0.50 0.50 0.00  Si 0.00 0.50 0.50 Si 0.50 0.00 0.50 Si 0.25 0.25 0.25 Si 0.75 0.75 0.25  Si 0.25 0.75 0.75 Si 0.75 0.25 0.75K_POINTS  4   0.1250000  0.1250000  0.1250000   1.00   0.3750000  0.3750000  0.3750000   1.00   0.3750000  0.1250000  0.1250000   3.00   0.3750000  0.3750000  0.1250000   3.00
 
the Total Energy is 4-times as great as the Fcc structure total energy (till the 5-th digit), but the code has detected 24 symmetries, with no inversion for the SC one. What's the problem(if there is any)? Should'nt be 48 symmetries? 
 
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