Related Experiment Video
Updated: Aug 5, 2026
14:23
Design and Optimization Strategies of a High-Performance Vented Box
Published on: June 9, 2023
TorchFF: A high-performance GPU-accelerated differentiable force field library
Yingze Wang1, Aalim S Abdullah1, Rohith Srinivaas Mohanakrishnan2
1Kenneth S. Pitzer Theory Center and Department of Chemistry, Berkeley, California 94720, USA.
The Journal of Chemical Physics
|July 29, 2026
Summary
TorchFF is a new library that speeds up molecular dynamics simulations. It uses custom CUDA operators to overcome performance bottlenecks in PyTorch for molecular modeling tasks.
Area of Science:
- Computational chemistry
- Molecular modeling
- Scientific computing
Background:
- Molecular dynamics (MD) simulations and force field development increasingly use automatic differentiation.
- Standard frameworks face performance bottlenecks in MD simulations due to small-kernel operations and memory limitations.
Purpose of the Study:
- To introduce TorchFF, a high-performance, differentiable library for molecular modeling.
- To address performance bottlenecks in PyTorch for MD simulations.
Main Methods:
- Developed TorchFF, extending PyTorch with customized CUDA operators.
- Implemented performance-critical routines (bonded interactions, electrostatics, Ewald summation, neighbor lists) as backend-optimized primitives.
Main Results:
- TorchFF bridges the gap between Python's flexibility and compiled MD engine speeds.
- Achieved high performance for molecular modeling tasks within the PyTorch ecosystem.
Conclusions:
- TorchFF offers a solution for efficient and differentiable molecular dynamics simulations.
- Enables faster property prediction and parameter optimization in molecular modeling.
More Related Videos
Related Concept Videos
01:30Three-Dimensional Force System
In mechanical engineering, a three-dimensional force system is a system of forces acting in three dimensions, with forces applied along the x, y, and z coordinate axes. The three-dimensional force system is an important concept in mechanical engineering, as it allows engineers to understand and analyze the behavior of objects and structures in three dimensions. By understanding the forces acting on a system, engineers can design more efficient and effective mechanical systems that can withstand...
01:17Accelerating Fluids
When a fluid is in constant acceleration, the pressure and buoyant force equations are modified. Suppose a beaker is placed in an elevator accelerating upward with a constant acceleration, a. In the beaker, assume there is a thin cylinder of height h with an infinitesimal cross-sectional area, ΔS.
The motion of the liquid within this infinitesimal cylinder is considered to obtain the pressure difference. Three vertical forces act on this liquid:
The motion of the liquid within this infinitesimal cylinder is considered to obtain the pressure difference. Three vertical forces act on this liquid:
01:20Two-Dimensional Force System
A two-dimensional system in mechanical engineering involves the analysis of motion and forces in a plane. A two-dimensional force vector can be resolved into its components as:
01:30Three-Dimensional Force System:Problem Solving
A three-dimensional force system refers to a scenario in which three forces act simultaneously in three different directions. This type of problem is commonly encountered in physics and engineering, where it is necessary to calculate the resultant force on the system, which can then be used to predict or analyze the behavior of the object or structure under consideration.
To solve a three-dimensional force system, first resolve each force into its respective scalar components. Do this using...
To solve a three-dimensional force system, first resolve each force into its respective scalar components. Do this using...
01:19Net Torque Calculations
When a mechanic tries to remove a hex nut with a wrench, it is easier if the force is applied at the farthest end of the wrench handle. The lever arm is the distance from the pivot point (the hex nut in this case) to the person’s hand. If this distance is large, the torque is higher. Only the component of the force perpendicular to the lever arm contributes to the torque. Therefore, pushing the wrench perpendicular to the lever arm is more advantageous. If multiple people apply force to rotate...
01:28Forced Transdifferentiation
Transdifferentiation, also known as lineage reprogramming, was first discovered by Selman and Kafatos in 1974 in silkmoths. They observed that the moths’ cuticle-producing cells transformed into salt-producing cells. Many such cases of natural transdifferentiation occur in organisms. In humans, pancreatic alpha cells can become beta cells. In newts, the loss of the eye’s lens causes the pigmented epithelial cells to transdifferentiate into the lens cells.
Artificial transdifferentiation occurs...
Artificial transdifferentiation occurs...