2 papers
physics.ao-ph2026
FESOM2.8 in single precision: climate fidelity over six decades and performance on CPUs and GPUs
Suvarchal Kumar Cheedela, Nikolay V. Koldunov, Sergey Danilov +3
Halving the floating-point precision of an ocean model can make it substantially faster, but whether the rounding errors stay negligible over climate time scales has rarely been te…
physics.ao-ph2026
FESOM2-JAX v1.0: a differentiable shadow of the ocean-sea-ice model FESOM2, cast onto GPUs
Nikolay V. Koldunov, Sergey Danilov, Suvarchal Cheedela +9
We present FESOM2-JAX, a Python re-implementation of the Finite-volumE Sea ice-Ocean Model (FESOM2) in JAX. The model retains the unstructured-mesh, cell-vertex finite-volume formu…