Scripts for IR Table Generation

The scripts folder contains scipts to generate Intermediate Representation (IR) tables for any design.

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Prerequisite: Add Design Data

Before running the IR generation scripts, make sure you have a folder for your design in the designs folder and it contains the design files (def, sdc, spef and netlist).

Generate IRs from OpenROAD using TCL

Set design and platform

Modify set_design.tcl to name the design and platform. If you need to add more designs, add them to the designs directory and modify the set_design.tcl file appropriately.

Also modify the fixed_load_cell in set_design.tcl, which provides the type of cell that should be used to calculate the fixed load delay for cells.

Run OpenROAD and TCL scripts to generate relational tables

The following command to generate the relations tables in the ./IRs/ directory.

./path/to/binary/openroad ./scripts/tcl/generate_tables.tcl

Generate IRs from OpenROAD using Python

Run the following command to generate the relations tables in the ./IRs/ directory from the top level CircuitOps folder.

./src/OpenROAD/build/src/openroad -python ./scripts/python/generate_tables.py -w 1 -d <design_name>  -t <tech_node>

Arguments of python script:
-w --> [0 | 1] Store IR tables into csv files. Default: 0
-d --> To provide the design name for which IR table should be generated. Default: "gcd"
-t --> To provide the technology node. Default: "nangate45"