ICC的psynopt什么时候用，什么作用？

vlsi503

After modifying placement and path group parameters
(as appropriate) execute psynopt:
Performs incremental timing-driven logic optimization
Legalizes placement

补充上面回答

vlsi503

Include -area_recovery
May help reduce congestion and power – may impact run time
If power optimization is a priority include -power
Enable GLPO dynamic power optimization (if not already
enabled prior to place_opt –power)
If the design is congested include –congestion

..刚才补充错了，sorry

豪杰大侠

学习ing

yehf3

学习中

mhyyyyyy

place后可以用，cts后可以用，route后也可以用，但记得legalize_placement ，然后route_zrt_eco。
psynopt针对时序违例而不考虑其它问题，所以会带来一些其它错误。

小随同学

psynopt，可用在cts之后修复违例。其后参数 -power可优化功耗同时优化timing，-only fix hold专门用来修复hold violation。（小白留言，欢迎讨论指正