IDNS: Adaptive learning stiff ODEs – Taylor-Green at Re=10⁸ vs. NASA benchmark [pdf](philpapers.org)
philpapers.org
IDNS: Adaptive learning stiff ODEs – Taylor-Green at Re=10⁸ vs. NASA benchmark [pdf]
https://philpapers.org/archive/CAMIIA-3.pdf
1 comments
Sigmoid controller allocates timesteps by solution stiffness—same idea as Adam for gradients. Fixed hyperparameters across 5 orders of magnitude in Reynolds number. Matches NASA benchmark (Rε = 1.000) at 1/8th resolution on laptop. Code + data public - see zenodo and github repo link in paper (link)