期刊
JOURNAL OF CHEMICAL INFORMATION AND MODELING
卷 60, 期 7, 页码 3408-3415出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.jcim.0c00451
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资金
- Molecular Sciences Software Institute (MolSSI) under NSF [ACI-1547580]
- NSF [CHE-1802831, CHE-1802789]
- LDRD program at Los Alamos National Laboratory (LANL)
- Center for Nonlinear Studies (CNLS) at Los Alamos National Laboratory (LANL)
- NVIDIA Corporation
This paper presents TorchANI, a PyTorch-based program for training/inference of ANI (ANAKIN-ME) deep learning models to obtain potential energy surfaces and other physical properties of molecular systems. ANI is an accurate neural network potential originally implemented using C++/CUDA in a program called NeuroChem. Compared with NeuroChem, TorchANI has a design emphasis on being lightweight, user friendly, cross platform, and easy to read and modify for fast prototyping, while allowing acceptable sacrifice on running performance. Because the computation of atomic environmental vectors and atomic neural networks are all implemented using PyTorch operators, TorchANI is able to use PyTorch's autograd engine to automatically compute analytical forces and Hessian matrices, as well as do force training without requiring any additional codes. TorchANI is open-source and freely available on GitHub: https://github.com/aiqm/torchani.
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