HSPICE: Monte Carlo Simulation for CMOS widths

[2wice]

I'm trying to simulate random CMOS widths with the widths set to AGAUSS. But even with 50 iterations of Monte Carlo simulation I seem to be getting the same value. i.e. each iteration has the same width as the first one! I haven't seeded it with any initial value could that be a problem?

.tran 0.1ps 50ns sweep MONTE=50

That is the code I used for Monte Carlo. Any help would be greatly appreciated. Thank You

 

[saurabhr8here]

How do you set up the width values with AGAUSS? How is the transistor instance declared? Please provide details.