How to get best results from synthesis

 Hi Shobhit,

 you will need to be a little more specific. Most tools out there have detailed manuals in addition to the extensive number of books out there on the subject. Nothing is perfect but certainly a google search will return a number of hits. Most important, synthesis is not one-size-fits-all. Tools are tuned to provide good out-of-the-box results. However, depending on your design goals, the recipe will change. Is your designs most important measure area ? timing ? power ? is it difficult to route ? is it leakage or dynamic power ? Can you use multiple power domains ? Can you apply retiming ? Is your design dominate by macros ? If you want an intelligent answer you will have to provide substantially more detail. I would recommend you approach your local support and review some of your results and goals with them. They are bound to be able to provide you with ample valuable feedback based on their experience and knowledge of the tools

good luck,

gh-

 Hi Grasshopper,

 I am KIRTESH not shobhit :-)

any way I have a design that has 5corners and 3 modes , 8 power domains, I need to focus mainly on power but as we know we can not use more area too. I am also using upf , power switch , isolation cells, always on byffers , clock gates etc.

Hope now I will get a procedure for that .

Kirtesh,

 What you are asking for is not simple.  Power domains and multiple modes make for a complex synthesis environment.  But, the write_template command in RC will give you an excellent starting point.  I think the write_template options you need are -power and -cpf (for power domains).

   rc:/>  write_template -power -cpf -outfile my_rc_script.tcl

If you encounter an issues, I suggest you contact the RC AE in your area or file a service request at support.cadence.com.

Good luck!