GeoPT: Scaling Physics Simulation via Lifted Geometric Pre-Training

• URL: http://arxiv.org/abs/2602.20399v1
• Date: Mon, 23 Feb 2026 22:32:08 GMT
• Title: GeoPT: Scaling Physics Simulation via Lifted Geometric Pre-Training
• Authors: Haixu Wu, Minghao Guo, Zongyi Li, Zhiyang Dou, Mingsheng Long, Kaiming He, Wojciech Matusik,
• Abstract summary: We present GeoPT, a unified pre-trained model for general physics simulation based on lifted geometric pre-training.<n>The core idea is to augment geometry with synthetic dynamics, enabling dynamics-aware self-supervision without physics labels.
• Score: 86.70824679370524
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Neural simulators promise efficient surrogates for physics simulation, but scaling them is bottlenecked by the prohibitive cost of generating high-fidelity training data. Pre-training on abundant off-the-shelf geometries offers a natural alternative, yet faces a fundamental gap: supervision on static geometry alone ignores dynamics and can lead to negative transfer on physics tasks. We present GeoPT, a unified pre-trained model for general physics simulation based on lifted geometric pre-training. The core idea is to augment geometry with synthetic dynamics, enabling dynamics-aware self-supervision without physics labels. Pre-trained on over one million samples, GeoPT consistently improves industrial-fidelity benchmarks spanning fluid mechanics for cars, aircraft, and ships, and solid mechanics in crash simulation, reducing labeled data requirements by 20-60% and accelerating convergence by 2$\times$. These results show that lifting with synthetic dynamics bridges the geometry-physics gap, unlocking a scalable path for neural simulation and potentially beyond. Code is available at https://github.com/Physics-Scaling/GeoPT.

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