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Initial DC analysis extremely slow

I designed a serializer with a PLL. I can do post layout simulation with serializer or PLL separately. When I simulate the whole system, the spectre got stuck at the initial DC analysis. After print out "Trying 'homotopy = gmin' for nodesets.", there is nothing more to output after 5 hours running. It looks to me the initial DC analysis coverage slow. Anyone has any suggestions on that? Thanks a lot!

dtgong over 16 years ago

I set homotopy = dptran, the initial condition coveraged.
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