Write iPhysOpt script.
Syntax
write_iphys_opt_tcl [‑place] [‑binary] [‑quiet] [‑verbose] [<output>]Usage
| Name | Description |
|---|---|
[-place]
|
write out placement information |
[-binary]
|
write out in binary format |
[-quiet]
|
Ignore command errors |
[-verbose]
|
Suspend message limits during command execution |
[<output>]
|
tcl file containing iPhysOpt script |
Categories
Description
Because physical optimization requires timing data that is only available after placement, the phys_opt_design command cannot be run prior to placement. However, the interactive physical optimization feature, or iphys_opt_design, lets you write out the physical optimizations performed on the post-placed design, and then apply those optimizations to the design netlist prior to placement. Refer to the Vivado Design Suite User Guide: Implementation (UG904) for more information on interactive physical optimization.
- Applying post-placement physical optimizations to the pre-placement netlist to improve the overall placement result and improve design performance.
- Saving the physical optimizations in a Tcl script to be repeated as needed.
write_iphys_opt_tcl command can only be run after placement, on a design that has had actual physical optimizations performed.
report_phys_opt command to report the physical optimizations that have been performed on the design.iphys_opt_design commands listing the specific optimizations performed by the phys_opt_design command. The iphys_opt Tcl script can be edited to change the specific optimizations performed. The Tcl script provides a history of the physical optimizations performed on the design after placement, marked by date and history.
iphys_opt Tcl script contains the specific optimizations performed by the phys_opt_design command, but does not include placement and routing changes or results.This command returns nothing if successful, or returns an error if it fails.
Arguments
-place - (Optional) Write out placement data for optimized cells in the design, as well as the physical optimization Tcl commands. The default iphys_opt Tcl script does not include the placement data.
-quiet - (Optional) Execute the command quietly, returning no messages from the command. The command also returns TCL_OK regardless of any errors encountered during execution.
-verbose - (Optional) Temporarily override any message limits and return all messages from this command.
set_msg_config command.Examples
write_iphys_opt_tcl C:/Data/myDesign_physopt.tcl