Incrementally places the unplaced standard cells.
-fixPlacedInsts {true | false}: Specifies that instances with the PLACED status are not moved.
-timing_driven {true|false} default false: turn on the slack-driven placement for ecoPlace.
-useGACells<GACoreSite>: Selects and places the unplaced instances with techSite matching the provided GACoreSite. It is ecpected that there is free space to place the instances. If not, GA fillers could be deleted before ecoPlace -useGACells and re-inserted after the command. You can use this parameter only for post-mack ECO.
-useGAFillerCells <GAFillerCells>: Specifies a list of Gate Array (GA) - style filler cells that the tool can replace with GA cells during post-mask ECO. You can only use this parameter in a post-mask ECO flow.
-place_detail_use_GA_filler_groups {true|false}: Specifies that filler cell instances will only be replaced by logic instances that belong to the same GA groups.
-useSpareCells {true | false}: Maps unplaced cells to spare cells during placement. First, checks whether all unplced cells match spare cells. Next, choose a spare cell and changes the connections from the unplaced cell to the selected spare cell. Finally, deletes the unplced cell. You can only use this parameter in a post-mask ECO flow.