Trinity
Copyright 2026 the Trinity authors.

Licensed under the Apache License, Version 2.0 (see LICENSE).

This repository builds on, ports, or downloads the following third-party work. Each keeps
its own license; nothing below is relicensed by this repository.

Data
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* FloorSet (Intel Labs) — https://github.com/IntelLabs/FloorSet — Apache-2.0.
  Downloaded at run time by trinity.floorplan.data; not redistributed here.
* GSRC and MCNC floorplanning benchmarks (bookshelf format), served by the University of
  Michigan VLSI CAD group — http://vlsicad.eecs.umich.edu/BK/ — downloaded at run time;
  not redistributed here.

Classic solver
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* PARSAC (Intel Labs) — https://github.com/IntelLabs/parsac — Apache-2.0.
  Not vendored: scripts/baselines/build_parsac.sh clones it at a pinned commit and applies
  scripts/baselines/parsac.patch (a modification of src/c_src/ca_sa.cpp).

Ported published placers (src/trinity_baselines/{ported,ports,classical/sp_sa.py})
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These modules port the network backbones, post-hoc refiners, in-sampler guidance and
sequence-pair annealer of the following works so they run under the Trinity interface.
Each module names its source repository and file.

* MacroDiff+ — https://github.com/jhy00n/MacroDiff-plus — MIT License,
  Copyright (c) 2026 MacroDiff+ Authors.
* BBOPlace-Bench — https://github.com/lamda-bbo/BBOPlace-Bench — MIT License (as stated in
  its README).
* ChipDiffusion — https://github.com/vint-1/chipdiffusion — no license declared upstream.
* DiffPlace — https://github.com/HySonLab/DiffPlace — no license declared upstream.
* FlowPlace — https://github.com/lamda-bbo/flowplace — no license declared upstream.