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1. (WO2017058457) INTERACTIVE MULTI-STEP PHYSICAL SYNTHESIS

Pub. No.:    WO/2017/058457    International Application No.:    PCT/US2016/049990
Publication Date: Fri Apr 07 01:59:59 CEST 2017 International Filing Date: Fri Sep 02 01:59:59 CEST 2016
IPC: G06F 17/50
Applicants: XILINX, INC.
Inventors: AGGARWAL, Rajat
WANG, Zhiyong
LU, Ruibing
DAS, Sabyasachi
Title: INTERACTIVE MULTI-STEP PHYSICAL SYNTHESIS
Abstract:
In one embodiment of the invention, a processor-implemented method is provided for placing and routing a circuit design (102). A first netlist is generated for a circuit design. Placement is performed (108) for the first netlist (106) on a target IC to produce a first placed design (1 10). A set of optimizations are performed (1 12) on the first placed design. The set of optimizations are recorded (1 14) in an optimization history file (1 16). One or more optimizations specified in the optimization history file are performed (1 18/202) on the first netlist to produce a second netlist that is different than the first netlist. Placement is performed (206) for the second netlist on the target IC to produce a second placed design (208) that is different than the first placed design. Nets of the second placed design are routed (210) to produce a placed and routed circuit design.