Element = Lattice = Model = Element: H
Lattice: hcp
Model: MEAM_LAMMPS_NouranianTschoppGwaltney_2014_CH__MO_354152387712_001
Computed model cutoff of 3.000000004544875 Angstroms
Computed isolated atomic energy of 0.0 eV for species H

==============================================================================
==============================================================================
 Starting optimization to find optimum lattice constant 'a' with c/a fixed to
 sqrt(8/3)
==============================================================================
==============================================================================


Attempting to perform relaxation using initial lattice constant guess of a = 1.0 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: -6.983724
         Iterations: 37
         Function evaluations: 78
Results for this minimization:
  a = 1.8175263136625313, total energy = -6.983723661641603

Attempting to perform relaxation using initial lattice constant guess of a = 1.125 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: -6.983724
         Iterations: 37
         Function evaluations: 76
Results for this minimization:
  a = 1.8175263189710682, total energy = -6.983723661641602

Attempting to perform relaxation using initial lattice constant guess of a = 1.25 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: -6.983724
         Iterations: 38
         Function evaluations: 80
Results for this minimization:
  a = 1.8175263225566596, total energy = -6.983723661641601

Attempting to perform relaxation using initial lattice constant guess of a = 1.375 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: -6.983724
         Iterations: 35
         Function evaluations: 75
Results for this minimization:
  a = 1.8175263204961103, total energy = -6.983723661641602

Attempting to perform relaxation using initial lattice constant guess of a = 1.5 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: -6.983724
         Iterations: 35
         Function evaluations: 74
Results for this minimization:
  a = 1.8175263202982028, total energy = -6.983723661641603

Attempting to perform relaxation using initial lattice constant guess of a = 1.625 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: -6.983724
         Iterations: 32
         Function evaluations: 69
Results for this minimization:
  a = 1.8175263240933421, total energy = -6.983723661641604

Attempting to perform relaxation using initial lattice constant guess of a = 1.75 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: -6.983724
         Iterations: 31
         Function evaluations: 67
Results for this minimization:
  a = 1.8175263207405807, total energy = -6.9837236616416005

Attempting to perform relaxation using initial lattice constant guess of a = 1.875 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: -6.983724
         Iterations: 34
         Function evaluations: 71
Results for this minimization:
  a = 1.8175263235461898, total energy = -6.9837236616416

Attempting to perform relaxation using initial lattice constant guess of a = 2.0 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: -6.983724
         Iterations: 34
         Function evaluations: 72
Results for this minimization:
  a = 1.817526324093342, total energy = -6.9837236616416005

Attempting to perform relaxation using initial lattice constant guess of a = 2.125 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: -6.983724
         Iterations: 34
         Function evaluations: 71
Results for this minimization:
  a = 1.8175263160839674, total energy = -6.983723661641599

Attempting to perform relaxation using initial lattice constant guess of a = 2.25 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: -6.983724
         Iterations: 36
         Function evaluations: 75
Results for this minimization:
  a = 1.817526322323828, total energy = -6.983723661641601

Attempting to perform relaxation using initial lattice constant guess of a = 2.375 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: -6.983724
         Iterations: 35
         Function evaluations: 75
Results for this minimization:
  a = 1.8175263254903262, total energy = -6.9837236616416005

Attempting to perform relaxation using initial lattice constant guess of a = 2.5 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: -6.983724
         Iterations: 36
         Function evaluations: 75
Results for this minimization:
  a = 1.8175263276789337, total energy = -6.9837236616416

Attempting to perform relaxation using initial lattice constant guess of a = 2.625 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: -6.983724
         Iterations: 37
         Function evaluations: 79
Results for this minimization:
  a = 1.8175263297453053, total energy = -6.983723661641598

Attempting to perform relaxation using initial lattice constant guess of a = 2.75 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: -6.983724
         Iterations: 37
         Function evaluations: 80
Results for this minimization:
  a = 1.8175263162702313, total energy = -6.983723661641598

Attempting to perform relaxation using initial lattice constant guess of a = 2.875 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: -6.983724
         Iterations: 38
         Function evaluations: 80
Results for this minimization:
  a = 1.8175263281678762, total energy = -6.983723661641601

Attempting to perform relaxation using initial lattice constant guess of a = 3.0 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: -6.983724
         Iterations: 38
         Function evaluations: 81
Results for this minimization:
  a = 1.8175263136625261, total energy = -6.983723661641596

Attempting to perform relaxation using initial lattice constant guess of a = 3.125 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: -6.983724
         Iterations: 36
         Function evaluations: 75
Results for this minimization:
  a = 1.8175263222656213, total energy = -6.983723661641604

Attempting to perform relaxation using initial lattice constant guess of a = 3.25 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: 0.000000
         Iterations: 32
         Function evaluations: 95
Results for this minimization:
  a = 3.25, total energy = 0.0

Attempting to perform relaxation using initial lattice constant guess of a = 3.375 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: 0.000000
         Iterations: 32
         Function evaluations: 95
Results for this minimization:
  a = 3.375, total energy = 0.0

Attempting to perform relaxation using initial lattice constant guess of a = 3.5 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: 0.000000
         Iterations: 32
         Function evaluations: 95
Results for this minimization:
  a = 3.5, total energy = 0.0

==============================================================================
==============================================================================
 Starting optimization with both a and c/a relaxed
==============================================================================
==============================================================================


Attempting to perform relaxation using initial lattice constant guess of a = [1.81752632] Angstroms and c = 2.3744064469893633 = ([1.30639453] * a) Angstroms

Optimization terminated successfully.
         Current function value: -6.983724
         Iterations: 68
         Function evaluations: 149
Results for this minimization:
  a = 1.817526322776477, c = 2.9680080722867217, total energy = -6.983723661641603

Attempting to perform relaxation using initial lattice constant guess of a = [1.81752632] Angstroms and c = 2.5228068499261984 = ([1.38804419] * a) Angstroms

Optimization terminated successfully.
         Current function value: -6.983724
         Iterations: 76
         Function evaluations: 160
Results for this minimization:
  a = 1.8175263384519225, c = 2.968008022877013, total energy = -6.983723661641603

Attempting to perform relaxation using initial lattice constant guess of a = [1.81752632] Angstroms and c = 2.6712072528630335 = ([1.46969385] * a) Angstroms

Optimization terminated successfully.
         Current function value: -6.983724
         Iterations: 65
         Function evaluations: 142
Results for this minimization:
  a = 1.8175263225004052, c = 2.9680080391499137, total energy = -6.983723661641604

Attempting to perform relaxation using initial lattice constant guess of a = [1.81752632] Angstroms and c = 2.8196076557998686 = ([1.5513435] * a) Angstroms

Optimization terminated successfully.
         Current function value: -6.983724
         Iterations: 69
         Function evaluations: 151
Results for this minimization:
  a = 1.817526345142478, c = 2.9680079654984177, total energy = -6.9837236616416005

Attempting to perform relaxation using initial lattice constant guess of a = [1.81752632] Angstroms and c = 2.9680080587367037 = ([1.63299316] * a) Angstroms

Optimization terminated successfully.
         Current function value: -6.983724
         Iterations: 61
         Function evaluations: 135
Results for this minimization:
  a = 1.8175263283347278, c = 2.968008042481501, total energy = -6.983723661641604

Attempting to perform relaxation using initial lattice constant guess of a = [1.81752632] Angstroms and c = 3.116408461673539 = ([1.71464282] * a) Angstroms

Optimization terminated successfully.
         Current function value: -6.983724
         Iterations: 69
         Function evaluations: 143
Results for this minimization:
  a = 1.8175263430106257, c = 2.96800803458295, total energy = -6.9837236616416005

Attempting to perform relaxation using initial lattice constant guess of a = [1.81752632] Angstroms and c = 3.264808864610374 = ([1.79629248] * a) Angstroms

Optimization terminated successfully.
         Current function value: -6.983724
         Iterations: 69
         Function evaluations: 147
Results for this minimization:
  a = 1.8175263238639432, c = 2.968008067851654, total energy = -6.983723661641602

Attempting to perform relaxation using initial lattice constant guess of a = [1.81752632] Angstroms and c = 3.413209267547209 = ([1.87794214] * a) Angstroms

Optimization terminated successfully.
         Current function value: -6.983724
         Iterations: 79
         Function evaluations: 167
Results for this minimization:
  a = 1.8175263247795947, c = 2.9680080559048054, total energy = -6.983723661641605

Attempting to perform relaxation using initial lattice constant guess of a = [1.81752632] Angstroms and c = 3.561609670484044 = ([1.95959179] * a) Angstroms

Optimization terminated successfully.
         Current function value: -6.983724
         Iterations: 76
         Function evaluations: 164
Results for this minimization:
  a = 1.8175263186343158, c = 2.9680080944750604, total energy = -6.983723661641602

==============================================================================
==============================================================================
 Finished with optimization
==============================================================================
==============================================================================

 Final lattice Constants:
   a = 1.8175263247795947 Angstroms, c = 2.9680080559048054 Angstroms, c/a = 1.632993

 Total energy: -6.983723661641605 eV

 Cohesive energy: -1.7459309154104012 eV/atom

==============================================================================
==============================================================================