Using Pre-built Binaries

Install Klayout and Yosys

Please ensure the Klayout version (denoted with klayoutVersion variable) is consistent with the one used in DependencyInstaller script.

Instructions for installing:

• Klayout>=0.28.8
• Yosys>=0.58

Install OpenROAD

Download pre-built binaries with self-contained dependencies included from the Precision Innovations' GitHub releases here.

Thanks to Precision Innovations for hosting and maintaining these binaries.

The following platforms are supported currently:

• Ubuntu 20.04/22.04
• Debian 11

Use the following steps to download:

Step 1: Click on the Precision Innovations Github releases link.

Step 2: Download the artifacts for your distribution.

Step 3: Run the install command based on platform use package installer. For example Ubuntu 20.04 use:

sudo apt install ./openroad_2.0_amd64-ubuntu20.04.deb

Verify Installation

You may clone the OpenROAD-flow-scripts repository non-recursively.

git clone https://github.com/The-OpenROAD-Project/OpenROAD-flow-scripts.git

Export path variables accordingly.

# these variables are used in flow/Makefile. Do make sure the yosys path is sourced.
export OPENROAD_EXE=$(command -v openroad)
export YOSYS_EXE=$(command -v yosys)

# only if KLayout is built from source
export LD_LIBRARY_PATH="<klayout_location>/bin:$PATH"

yosys -help
yosys -m slang -p "slang_version"
openroad -help
cd flow
make
make gui_final