Design compiler get_cells

When you use the extract_physical_constraintscommand, for each cell with a location and the FIXED attribute specified in the DEF, Design Compiler sets the location on the corresponding cell in the design.
Example 9-2 shows DEF macro location and orientation information.

Design Compiler in topographical mode sets a logical_cell_from_defattribute on logic cells that are created from a DEF file.
You can id entify these logic cells by using the following command:

To use preroute information and physical-only cells in Design Compiler, you need to create the power and ground nets and physical-only cells before reading the floorplan file.