we all know that the parametric analysis is quite a useful tool in cadence, we can sweep any parameters in the design. I refer to the
cadence user guide and I find that it is a "for loop" simulation. I perform the same simulation by using the same "for loop" , but I find the parametric analysis is much faster than the common "for loop". I would like to know why the parametric analysis is faster? is there some optimization for the parametric analysis ?
I did a quick comparison by doing a parametric ac frequency sweep on an opamp in IC614. The sweep steps a common mode voltage variable 5 times. I then recorded the total simulation time in seconds for different controlModes and ways of executing the task. The for loop runs as follows:
foreach(Param '(0 0.425 0.85 1.275 1.7 )
and the ocean parametric:
paramAnalysis("Vi_cm" ?values '(0 0.425 0.85 1.275 1.7 ))
The ade-parametric simulation runs a parametric analysis using the ADE GUI. The table below shows the simulation times in seconds
I would like to know if there is a way to speed up the ocean parametric simulation, so that the simulation time could be compared to ade-parametric?