2D dielectric cylinder forward-T vs Tidy3D#
validated · 2026-08-28
This case compares a local FDTDX result with pinned reference data generated by Tidy3D.
Representative radiating-field structure.#
What is exercised#
Forward flux ratio with/without eps=2.25 cylinder (r=0.25µm). Loose tol for staircasing.
This case runs at its declared full benchmark resolution (resolution factor 1.0).
Recorded result#
Metric |
Observed / error |
Reference / limit |
Error |
Effective budget |
Result |
|---|---|---|---|---|---|
|
0.798438 |
0.892698 |
0.0942596 |
0.187124 |
PASS |
The table is rendered from progress.json; it is not a hand-written success claim. For metrics that report an error directly, the “observed” column repeats that error and the reference column is the acceptance threshold.
Reproduce#
uv run fdtdx-bench run --case parity_mie2d_cylinder
Implementation and provenance: benchmarks/cases/parity_mie2d_cylinder/case.yaml, benchmarks/cases/parity_mie2d_cylinder/run.py, benchmarks/goldens/parity_mie2d_cylinder.npz.