Table 3 The mean absolute error (MAE) of atomic forces (meV Å1) of three bulk systems and three molecular systems.

From: Accurate and efficient molecular dynamics based on machine learning and non von Neumann architecture

 

Method

Computer architecture

Bulk systems

Molecular system

Sb

GeTe

Li-Ge-P-S

Benzene

Aspirin

Naphthalene

NVNMD (this work)

QNN (after quantization)

NvN

85.1

161.0

68.1

11.9

28.8

18.8

CNN (before quantization)

vN

79.4

161.0

65.9

6.7

24.7

10.3

MLMD

DeePMD30

vN

64.2

168.0

79.6

--

19.4

13.1

SchNet84

7.4

14.3

4.8

DimeNet85

8.1

21.6

9.3

sGDML86

2.6

29.5

4.7

PaiNN87

16.1

3.6

SpookyNet88

11.2

3.9

GemNet89

6.3

9.5

2.4

NewtonNet90

15.1

3.6

UNiTE91

6.1

1.5

NequIP92

8.2

1.6

μF

64.2

168.0

79.6

6.1

15.1

4.9

Difference between QNN (i.e., final results of NVNMD) and μF of MLMD

20.9

−7.0

−11.5

5.8

13.7

13.9

  1. All molecular system calculations are based on the MD17 dataset58,59,60.