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I want to understand core_utilization, but If I fix core_utilization, there is automatic die_area and core_area. What mechanism is in core_utilization command?(<http://config.mk|config.mk>) <#C0161A4A59V|> <#C016H8WJMBR|>
The openroad document said “core_area = design_area / (utilization / 100)” but I don’t know where design_area is set up.

Are you referring this: <https://github.com/The-OpenROAD-Project/OpenROAD/tree/master/src/ifp#readme>

check this code: <https://github.com/The-OpenROAD-Project/OpenROAD/blob/master/src/ifp/src/InitFloorplan.cc#L144>