quantum-espresso/tests/relax2-bfgs_ndim3.in

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&CONTROL
calculation = "relax",
/
&SYSTEM
ibrav = 6,
celldm(1) = 5.3033D0,
celldm(3) = 8.D0,
nat = 7,
ntyp = 1,
ecutwfc = 12.D0,
occupations = "smearing",
smearing = "methfessel-paxton",
degauss = 0.05D0,
/
&ELECTRONS
mixing_beta = 0.3D0
/
&IONS
bfgs_ndim=3
/
ATOMIC_SPECIES
Al 1.0 Al.pz-vbc.UPF
ATOMIC_POSITIONS
Al 0.5000000 0.5000000 -2.121320
Al 0.0000000 0.0000000 -1.414213
Al 0.5000000 0.5000000 -0.707107
Al 0.0000000 0.0000000 0.000000
Al 0.5000000 0.5000000 0.707107
Al 0.0000000 0.0000000 1.414213
Al 0.5000000 0.5000000 2.121320
K_POINTS
3
0.125 0.125 0.0 1.0
0.125 0.375 0.0 2.0
0.375 0.375 0.0 1.0