postRoute in EDI13.2

Hello All,

I am trying update the script for DEI13.2, and have some issue while doing postRoute optimization. The old script line is as following:

optDesign -postRoute

The following error shows up in the report:

**ERROR: (ENCOPT-7016): use setDelayCalMode -engine [feDC | signalStorm] -SIAware false before running optDesign -postRoute -si [-hold].

I changed the command to:

 setDelayCalMode -engine feDC -SIAware false

 optDesign -postRoute -si  

I got two errors shown as following: (similar results while using signalStorm option.)

**ERROR: (ENCOPT-7071):    The distributed optimization engine is obsolete and has been replaced by the GigaOpt optimization engine which is default in this release. Please update your scripts to remove any explicit settings of 'setDelayCalMode -engine feDc' or 'setDelayCalMode -engine signalStorm' so you get the default Advanced Analysis Engine (AAE) delay calculator to enable the GigaOpt engine.
**ERROR: (ENCSYT-6692):    Invalid return code while executing 'encounter.tcl' was returned and script processing was stopped. Review the following error in 'encounter.tcl' then restart.

Taking that  AAE is enable by default, I tried directly

  optDesign -postRoute -si 

This time I got two errors  

 **ERROR: (ENCOPT-7016): use setDelayCalMode -engine [feDC | signalStorm] -SIAware false before running optDesign -postRoute -si [-hold].
**ERROR: (ENCOPT-6080): AAE-SI Optimization can only be turned on when the timing analysis mode is set to OCV.
 To run optimization while taking into account on chip variation, set an MMMC environment with the right operating condition.

Looks like I cannot do -si analysis without turning on the OCV. I checked in the user guide, and turned on the OCV mode as following (I have set a BC lib and a WC lib in the operating conditions):

setAnalysisMode -analysisType onChipVariation -cppr both
optDesign -postRoute -si

 I got the following errors:

**ERROR: (ENCOPT-7016): use setDelayCalMode -engine [feDC | signalStorm] -SIAware false before running optDesign -postRoute -si [-hold].

 **ERROR: (ENCSP-2002):  Density too high (100.0%), stopping detail placement.
 **ERROR: (ENCSP-9022):  Command 'refinePlace' completed with some error(s).

The first error shows up again! The last two errors are new, and I guess they are related to the OCV mode, which I might not used properly.

 To summarize, I have two questions:

 1) Does the   **ERROR: (ENCOPT-7016)  for the old script mean NO postRoute optimization is done? 

 2) As suggested, AAE delay calculator is by default, why does the **ERROR: (ENCOPT-7016): show up for the old script?

 3) How important is it to run   optDesign -postRoute -si? Is it a common practice to run it in EDI13 or newer level?

 4) Can I do  optDesign -postRoute -si option without turning on OCV mode?

 5) If I have to turn on the OCV mode to run optDesign -postRoute -si, what is the correct way to do it? (I tried the example script in user guide, but I got some new errors as shown above.)

Sorry for so many questions, I am not very familiar to this flow. Any comments are highly appreciated.