If you want to use this as part of the OpenROAD project you should build it and use it from inside the integrated openroad app. The standalone version is available as a legacy code in standalone branch.

How to Download/Build?

For OpenROAD-flow users, manuals for released binaries are available in readthedocs! (Getting-Started)
For developers, manuals for building a binary is available in OpenROAD repo. (OpenROAD repo)
Note that RePlAce is a submodule of OpenROAD repo, and take a place as "global_placement" commands.

Features

Analytic and nonlinear placement algorithm. Solves electrostatic force equations using Nesterov's method. (link)
Verified with various commercial technologies using OpenDB (7/14/16/28/45/55/65nm).
Verified deterministic solution generation with various compilers and OS.
- Compiler: gcc4.8-9.1/clang-7-9/apple-clang-11
- OS: Ubuntu 16.04-18.04 / CentOS 6-8 / OSX
Cleanly rewritten as C++11.
Supports Mixed-size placement mode.
Supports fast image drawing modes with CImg library.


Visualized examples from ISPD 2006 contest; adaptec2.inf	Real-world Design: Coyote (TSMC16 7.5T)

Verified/supported Technologies

ASAP 7
GF 14
TSMC 16 (7.5T/9T)
ST FDSOI 28
TSMC 45
Fujitsu 55
TSMC 65

Manual

RePlAce's TCL Commands List

License

BSD-3-clause License [Link]

3rd Party Module List

CImg

Authors

Paper reference: C.-K. Cheng, A. B. Kahng, I. Kang and L. Wang, "RePlAce: Advancing Solution Quality and Routability Validation in Global Placement", to appear in IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems, 2018. (Digital Object Identifier: 10.1109/TCAD.2018.2859220)
Mingyu Woo rewrites the whole RePlAce with a clean C++11 structure.
The timing-Driven mode has been implemented by Mingyu Woo (only available in standalone branch.)
Timing-Driven and Routability-Driven mode are ongoing with the clean-code structure (in openroad branch.)

Languages

C++ 41.2%

Tcl 28.3%

Verilog 23.7%

Coq 5.4%

CMake 0.6%

Other 0.8%