feat(tidy3d): FXC-3294-add-opt-in-local-cache-for-simulation-results

Author: marcorudolphflex

CHANGELOG.md

@@ -25,6 +25,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Added `custom_source_time` parameter to `ComponentModeler` classes (`ModalComponentModeler` and `TerminalComponentModeler`), allowing specification of custom source time dependence.
 - Validation for `run_only` field in component modelers to catch duplicate or invalid matrix indices early with clear error messages.
 - Introduced a profile-based configuration manager with TOML persistence and runtime overrides exposed via `tidy3d.config`.
+- Added configurable local simulation result caching with checksum validation, eviction limits, and per-call overrides across `web.run`, `web.load`, and job workflows.
 
 ### Changed
 - Improved performance of antenna metrics calculation by utilizing cached wave amplitude calculations instead of recomputing wave amplitudes for each port excitation in the `TerminalComponentModelerData`.

docs/index.rst

@@ -168,6 +168,13 @@ This will produce the following plot, which visualizes the electromagnetic field
 
 You can now postprocess simulation data using the same python session, or view the results of this simulation on our web-based `graphical user interface (GUI) <https://tidy3d.simulation.cloud>`_.
 
+.. tip::
+
+   Repeated runs of the same simulation can reuse solver results by enabling the optional
+   local cache: ``td.config.simulation_cache.enabled = True``. The cache location and limits are
+   configurable (see ``~/.tidy3d/config``), entries are checksum-validated, and you can clear
+   all stored artifacts with ``tidy3d.web.cache.clear()``.
+
 .. `TODO: open example in colab <https://github.com/flexcompute/tidy3d>`_
 
 
@@ -262,4 +269,3 @@ Contents
 
 
 
-

tests/test_components/autograd/test_autograd.py

@@ -661,7 +661,7 @@ def plot_sim(sim: td.Simulation, plot_eps: bool = True) -> None:
 # args = [("polyslab", "mode")]
 
 
-def get_functions(structure_key: str, monitor_key: str) -> typing.Callable:
+def get_functions(structure_key: str, monitor_key: str) -> dict[str, typing.Callable]:
     if structure_key == ALL_KEY:
         structure_keys = structure_keys_
     else: