I want to run PSS, Pnoise and Pstb analysis on my design. The problem is PSS doesn't complete when I used netlist created from QRC extracted design (i.e. after layout). All the above analysis run if I do it on schematic level netlist. The netlist size is around 18.6 MB and I have a lot of switching in my design for e.g. chopping.
I did the following to solve this problem:
1. Optimization during RC extraction. I used many options under the 'filtering' tab in Assura QRC extraction window. For e.g. set the minimum R to 0.1 Ohm, reducing parasitics option etc. The size reduced to 10 MB but still the PSS doesn't complete.
2. I am using ++aps with circuit preset as 'sampled' and enabling post-layout optimization with legacy RCR.
However, PSS still does not complete.
The machine I am using has 32 GB RAM. I have added the link to spectre.out and cds log file.
Is there anything I can do to make it run? I am running PSS with tstab as 300u (circuit will take that much time to settle) and not saving the transient result.
Spectre.out:
cds.log