clock opt error message in ICC

[WTing]

Hi
There is error message when clock_opt

I try to do it again

Error message show placement error
then clock_opt completed. !!
Can I ignore these 2 message?

 

[ThisIsNotSam]

that is strange. are you trying to do the clock tree before the cells are placed?

 

[WTing]

No, placement is done before cts.
I guess 0.17 is those clock tree buffer cells.

 

[ThisIsNotSam]

in that case, disregard the second warning and try to understand the source of the first