Ba-2021-08-04-all-icsd

../../_images/pareto223.png

The current structure dataset comprises 14664 structures generated from unique ICSD prototype structures composed of single elements with zero oxidation state. A more detailed procedure is found in Phys. Rev. B 99, 214108 (2019). The procedure to estimate interatomic potentials from the dataset is found in Phys. Rev. B 99, 214108 (2019) and Phys. Rev. B 102, 174104 (2020).

Improvement from **-dataset-10000-all-icsd

  • More robust for structures with a small interatomic distance

  • More robust for structures with a large interatomic distance

  • More complex potential models are included.

  • MLPs are estimated without using DFT stress tensors.

  • MLPs are estimated by using small regression weights for energetically unstable structures.

Predictions using Pareto optimal MLPs

../../_images/prediction-ecoh-volume117.png

The cohesive energy and volume are obtained by performing a local structure optimization from the DFT equilibrium structure. In addition, the DFT equilibrium structure is obtained by optimizing a prototype structure included in ICSD, and the prototype is used as the structure legend in the figure. Therefore, the structure type of the converged structure is sometimes different from that shown in the legend even if the potential energy surface predicted by MLP is almost the same as the true one.

The other properties predicted by each Pareto optimal MLP are available from column Predictions in the following table.

Pareto optimals

Name

Time [ms] (1core/36cores)

RMSE [meV/atom]/[eV/A]

Predictions

Files

pair-14

0.017 / 0.038

50.473 / 0.1222

pair-27

0.018 / 0.005

32.039 / 0.1184

pair-15

0.026 / 0.039

11.398 / 0.0457

pair-28

0.027 / 0.007

10.944 / 0.0386

pair-18

0.033 / 0.017

10.193 / 0.0467

pair-29

0.039 / 0.009

8.5473 / 0.0353

pair-32

0.051 / 0.010

7.0563 / 0.0338

pair-33

0.069 / 0.012

5.8579 / 0.0319

predictions

mlp.lammps input log

pair-34

0.096 / 0.016

5.4774 / 0.0311

predictions

mlp.lammps input log

pair-35

0.121 / 0.021

4.9268 / 0.0305

predictions

mlp.lammps input log

pair-37

0.136 / 0.018

4.3921 / 0.0296

predictions

mlp.lammps input log

pair-38

0.171 / 0.022

4.0362 / 0.0289

predictions

mlp.lammps input log

pair-39

0.229 / 0.030

3.7082 / 0.0281

predictions

mlp.lammps input log

gtinv-175

0.376 / 0.031

3.7026 / 0.0237

predictions

mlp.lammps input log

gtinv-312

0.472 / 0.036

3.6911 / 0.0222

predictions

mlp.lammps input log

gtinv-306

0.507 / 0.041

2.5166 / 0.0204

predictions

mlp.lammps input log

gtinv-180

0.543 / 0.041

2.1957 / 0.0191

predictions

mlp.lammps input log

gtinv-250

0.716 / 0.056

2.1180 / 0.0185

predictions

mlp.lammps input log

gtinv-195

0.748 / 0.053

1.7070 / 0.0165

predictions

mlp.lammps input log

gtinv-318

0.906 / 0.068

1.6593 / 0.0166

predictions

mlp.lammps input log

gtinv-321

1.240 / 0.088

1.5975 / 0.0165

predictions

mlp.lammps input log

gtinv-205

1.307 / 0.088

1.4426 / 0.0157

predictions

mlp.lammps input log

gtinv-270

1.323 / 0.091

1.4105 / 0.0156

predictions

mlp.lammps input log

gtinv-330

1.834 / 0.118

1.3650 / 0.0147

predictions

mlp.lammps input log

gtinv-220

1.890 / 0.117

1.2760 / 0.0134

predictions

mlp.lammps input log

gtinv-182

1.992 / 0.115

1.1621 / 0.0136

predictions

mlp.lammps input log

gtinv-247

2.021 / 0.120

1.1558 / 0.0136

predictions

mlp.lammps input log

gtinv-261

2.341 / 0.142

1.1244 / 0.0130

predictions

mlp.lammps input log

gtinv-187

2.468 / 0.139

1.0363 / 0.0132

predictions

mlp.lammps input log

gtinv-252

2.492 / 0.140

1.0297 / 0.0133

predictions

mlp.lammps input log

gtinv-197

2.819 / 0.158

0.9665 / 0.0117

predictions

mlp.lammps input log

gtinv-262

2.839 / 0.166

0.9588 / 0.0116

predictions

mlp.lammps input log

gtinv-267

3.516 / 0.196

0.8602 / 0.0114

predictions

mlp.lammps input log

gtinv-264

5.489 / 0.315

0.8416 / 0.0110

predictions

mlp.lammps input log

gtinv-277

5.863 / 0.307

0.8083 / 0.0118

predictions

mlp.lammps input log

gtinv-222

6.837 / 0.369

0.7073 / 0.0103

predictions

mlp.lammps input log

gtinv-287

6.946 / 0.371

0.7052 / 0.0103

predictions

mlp.lammps input log

gtinv-227

8.349 / 0.454

0.6769 / 0.0102

predictions

mlp.lammps input log

gtinv-292

8.473 / 0.461

0.6707 / 0.0101

predictions

mlp.lammps input log

gtinv-224

14.066 / 0.687

0.6659 / 0.0097

predictions

mlp.lammps input log

gtinv-289

14.825 / 0.712

0.6619 / 0.0097

predictions

mlp.lammps input log

gtinv-294

17.107 / 0.825

0.6451 / 0.0096

predictions

mlp.lammps input log

Column “Time” shows the time required to compute the energy and forces for 1 MD step and 1 atom, which is estimated from a simulation of 10 runs for a structure with 284 atoms using a workstation with Intel(R) Xeon(R) CPU E5-2695 v4 @ 2.10GHz. Note that the MLPs should be carefully used for extreme structures. The MLPs often return meaningless values for them.

  • All Pareto optimal MLPs are available here.