gsim 0.8.0
Electromagnetic simulation for photonics and electronics, powered by GDSFactory+
Overview
gsim connects GDSFactory layout designs to multiple EM solvers for photonic and electronic simulation. It handles geometry extraction, mesh generation, port configuration, and cloud execution so you can go from GDS to S-parameters with minimal boilerplate.
Solvers
| Module | Solver | Method | Use Case |
|---|---|---|---|
gsim.fdtd |
GDSFactory FDTD | FDTD | PDK-native mesh and runtime configuration generation |
gsim.palace |
Palace | FEM | RF/microwave, impedance extraction, driven simulations |
gsim.meep |
Meep | FDTD | Photonic components, S-parameters, mode propagation |
Features
- Layer stack extraction — build 3D geometry from PDK layer stacks
- Port configuration — convert GDSFactory ports into solver-compatible definitions
- Mesh generation — GMSH finite-element meshes with configurable quality presets (Palace)
- Cloud execution — upload, run, and download results via
gsim.gcloud - Visualization — solver-agnostic 3D/2D component preview (PyVista, Matplotlib)
Installation
pip install gsim
For local Palace execution on Linux x86_64, gsim can auto-download and cache a prebuilt Palace CPU binary on first use.
No additional package installation is required. If you prefer to supply a binary yourself, set PALACE_BIN (path to an
executable) or put palace on your PATH; a Palace SIF image may be given via PALACE_SIF for Apptainer-based runs.
For development (requires uv):
git clone https://github.com/gdsfactory/gsim
cd gsim
uv sync --dev
Or use the justfile:
just dev
Documentation
See the documentation for API reference and examples.
License
2 maintainers
Metadata
2 maintainers
Release files for gsim 0.8.0
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Source distribution (sdist)
| File | Size | Uploaded | Provenance | |
|---|---|---|---|---|
| gsim-0.8.0.tar.gz | 613.4 kB | With provenance | Details |
Built distribution (wheel)
| File | Interpreter | ABI | Platform | Reset |
|---|---|---|---|---|
| gsim-0.8.0-py3-none-any.whl | Python 3 | none | any | Details |
Total release size: 1.3 MB
Release files / gsim-0.8.0.tar.gz
| Download URL | gsim-0.8.0.tar.gz |
|---|---|
| Size | 613.4 kB |
| Tags | Source |
|
SHA-256 checksum How to use checksums |
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| Download URL | gsim-0.8.0-py3-none-any.whl |
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| Size | 664.6 kB |
| Tags | Python 3 |
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SHA-256 checksum How to use checksums |
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