Hi Bob & Kari
I did the following things,why the spef from "timeDesign -signoff -si" is different to the spef from "extractRC".
1. spef_01.spef.gz (one way)
setExtractRCMode -engine postRoute -effortLevel signoff -coupled true -lefTechFileMap qrc.layermap
timeDesign -signoff -si
so,the spef file "spef_01.spef.gz" will be extracted.
2. spef_02.spef.gz (another way)
so,the spef file "spef_02.spef.gz" will be extracted.
but,why there are slight difference between "spef_01.spef.gz" and "spef_02.spef.gz" and which is more suitable to use?
In reply to Kari:
Thank you for reply.I think the option "-couple true" will force the command extractRC to
extract the si spef.
so,in my opinion the above two spef should be same,however there are subtle differences between them.
In reply to steven2012: