OCEAN script that identifies max settings

Hello,

I am a student new to OCEAN. I am trying to optimize the gain of a multi-stage differential amplifier by finding the best combination of transistor parameters and biasing voltages. So far I have been using the following two approaches:

1) a. Run a parametric analysis of multiple variables using ADE
b. Plot gain of all outputs on a single graph
c. Visually identify the best curve and look at what combination of parameters produced it.

2) a. Run an OCEAN script that does the same parametric analysis and writes the output to a text document
b. Take the text document and extract the data
c. Analyze the data in MATLAB to identify the best curve and the settings that produced it

Ideally, I would like my OCEAN script to identify the max gain, and more importantly the settings that produced it. I know that the max command could be used to determine the max gain, but I can't figure out how to get the settings that produced the max. Any suggestions?

Thanks!


Here is the script I am referring to in approach 2) :

simulator('spectre)
design("/home/po/pope0828/simulation/ocean_testing/spectre/schematic/netlist/netlist")
resultsDir("/home/po/pope0828/simulation/ocean_testing/spectre/schematic")
modelFile('("/home/mo/morris/g045/gpdk045/../models/spectre/gpdk045.scs" "mc"))

analysis('ac ?start "1M" ?stop "100M" )

desVar("width" 200n)
desVar("fingers" 1)
desVar("voltage_a" 1.1)
desVar("voltage_b" 1.1)

temp(27)

paramAnalysis("width" ?values '(1.5e-07 1.6e-07 1.7e-07 1.8e-07 1.9e-07 1e-06) paramAnalysis("fingers" ?values '(1 2 3 4 5 6 7 8 9 10) paramAnalysis("voltage_a" ?values '(0.6 0.7 0.8 0.9 1.0 1.1 1.2) paramAnalysis("voltage_b" ?values '(0.6 0.7 0.8 0.9 1.0 1.1 1.2)))))

paramRun()

ocnPrint( ?output "./myoutput.txt" db20(VF("/net08")/VF("/net7")) ?precision 16 ?numberNotation 'scientific ?from 1M ?to 100M ?step 1M )