Is there a facility to run CTS with min and max libraries in

Question

Is there a facility to run CTS with min and max libraries instead of just typical library in openLane

Ahmed Ghazy · Answer

You could try adding ```read liberty min $ env LIB FASTEST read liberty max $ env LIB SLOWEST ``` in the cts scripts but I haven t tested that Let me know what you find out

Nickson Jose · Answer

Yeah sure I can try that

Nickson Jose · Answer

Hi < Ahmed Ghazy> I tested the above The CTS runs successfully after including all the 3 libs tt ss and ff in the or cts tcl script However to get the correct results I would have to manually change the env CTS MAX CAP to corresponding corner cap value and then do run cts each time

Nickson Jose · Answer

Though I m not sure if that s the correct approach

Ahmed Ghazy · Answer

Did you really get drastically different results though

Nickson Jose · Answer

Yes I do see a good variation in the results just got a confirmation from openROAD team that TritonCTS currently doesn t support multi corner optimization so that could be the reason