element(s):
['Si']
AFLOW prototype label:
A_hP4_194_f
Parameter names:
['a', 'c/a', 'z1']
model type (only 'standard' supported at this time):
standard
number of parameter sets:
1
Parameter values for parameter set 0:
['3.8496', '1.6527431', '0.56294015']
model name:
SW_StillingerWeber_1985_Si__MO_405512056662_006
==== Building ASE atoms object with: ====
representative atom symbols =  ['Si']
representative atom coordinates =  [[0.33333333 0.66666667 0.56294015]]
spacegroup =  194
cell =  [[3.8496, 0, 0], [-1.9248, 3.3338513944086, 0], [0, 0, 6.3624]]
=========================================
      Step     Time          Energy          fmax
BFGS:    0 15:39:47      -17.332777         0.409865
BFGS:    1 15:39:47      -17.336108         0.336161
BFGS:    2 15:39:47      -17.342629         0.136770
BFGS:    3 15:39:47      -17.343882         0.111854
BFGS:    4 15:39:47      -17.344887         0.040766
BFGS:    5 15:39:47      -17.344981         0.042705
BFGS:    6 15:39:47      -17.345204         0.042130
BFGS:    7 15:39:47      -17.345417         0.036861
BFGS:    8 15:39:47      -17.345566         0.023133
BFGS:    9 15:39:47      -17.345597         0.006238
BFGS:   10 15:39:47      -17.345600         0.000440
BFGS:   11 15:39:47      -17.345600         0.000033
BFGS:   12 15:39:47      -17.345600         0.000002
BFGS:   13 15:39:47      -17.345600         0.000000
BFGS:   14 15:39:47      -17.345600         0.000000
Minimization converged after 14 steps.
Maximum force component: 3.295023985601193e-10 eV/Angstrom
Maximum stress component: 3.28486667989774e-11 eV/Angstrom^3
==== Minimized structure obtained from ASE ====
symbols =  ['Si', 'Si', 'Si', 'Si']
basis =  [[0.33333333 0.66666667 0.5625    ]
 [0.66666666 0.33333334 0.0625    ]
 [0.66666666 0.33333334 0.4375    ]
 [0.33333333 0.66666667 0.9375    ]]
cellpar =  Cell([[3.8402614165945987, -2.1122366483312645e-18, 4.707919285758865e-37], [-1.9201307082972994, 3.3257639439441387, 3.8167185195276664e-36], [4.241880672640884e-36, -8.095670283002247e-36, 6.271120633267299]])
forces =  [[-3.47122428e-31  2.73288037e-31 -3.29502399e-10]
 [ 1.89339506e-31  1.09315215e-31 -3.29502399e-10]
 [-3.15565843e-32 -5.46576074e-32  3.29502399e-10]
 [-3.15565843e-31  1.09315215e-31  3.29502399e-10]]
stress =  [1.90646113e-11 1.90646113e-11 3.28486668e-11 9.84991842e-34
 3.41211183e-34 1.78580855e-26]
energy per atom =  -4.336399999917268
===============================================
Parameter sets [0] relaxed to duplicate structures, attempting to write only one of them.
Successfully added property instance for parameter set 0