extra

Extra Scripts

This directory contains additional scripts that might be useful.

• pl2def.py: Writes node coordinate information from .pl files in the Bookshelf format to .def files.
• lefdef2bookshelf.py: Converts LEF/DEF files to the Bookshelf format based on DREAMPlace.

Details

pl2def.py

If your placement is done using the Bookshelf format, you can use this script to transfer node coordinate information from a .pl file to a .def file.

Usage:

python pl2def.py --pl="example.pl" --inputdef="input.def" --outputdef="output.def"

• pl: Path to the input .pl file.
• inputdef: Path to the input .def file.
• outputdef: Path to the output .def file.

lefdef2bookshelf.py

Note: The node names in the converted Bookshelf files will be the same as those in the DEF files. This might result in illegal characters causing DREAMPlace or other programs to fail when parsing the Bookshelf files.

If you need to use the Bookshelf format for placement algorithms, you can use this script for conversion.

This script is based on DREAMPlace, so you need to install DREAMPlace first.

Place this script in the dreamplace/ directory of DREAMPlace.

Usage:

• Configure the DREAMPlace JSON configuration file: Set def_input, lef_input, lib_input, and verilog_input to the corresponding file paths.
• Run the script with the command:

python dreamplace/lefdef2bookshelf.py case1.json

• The generated Bookshelf format files will be located in the benchmarks/ directory. For example, you will find the Bookshelf files in benchmarks/case1 (the subdirectory name corresponds to the JSON file name).