How to identify the point which is to be skewed for tile to tile interface from timing reports

 Need for skewing. Skewing need to be done in the following cases 

• High skew would increase the number of buffers getting added in the lowsvs corners 
• Lowsvs setup is critical and each buffer added in lowsvs would add 200ps and same would only give 18ps or less in high vt corners. 
• Memory paths which need to be balanced would be critical and they mostly need to be skewed 

How to identify the point which need to be skewed. 

• Most likely these would be mux outputs. 
• We can identify this by a crude way by filtering without a design knowledge by using the following simple command 

Steps 

• The below command would give you the common pins which are repeated n number of times. 
• Pick up the points from below and check if the skewing can be done at the below points. 
• Identify if these are outside the block A and block B where they can be skewed at the top interface 
• This would reduce the analysis time. 
• If you have design knowledge you can directly identify the points which can be skewed based on design knowledge