System = bulk MgO relaxation
#         system
PREC = Normal # normal
ENCUT = 600 # eV
NPAR = 1 # running in parallel
VOSKOWN = 1
ISPIN = 2
#         smearing
ISMEAR = 0 # Gaussian smearing
SIGMA = 0.05 # eV
#         ions
IBRION = 2 # conjugate gradient method
ISIF= 3 # relax ions and cell shape and cell volume and calc stress tensor
# RWIGS= 1 #
NSW = 191 # number of ionic steps (odd)
#         efficient relaxation
ISTART = 1 # relax from WAVECAR if it exists
LWAVE = False
LCHARG = False
