Post layout simulation is done in the ESIM simulator. To use ESIM/ELDO you need to create a
netlist file by runnig N2spi (layoutfile), where layoutfile is the name of your design. You will need to
edit the produced (layoutfile).cir file so that it contains the .LIB line and the proper input waveforms for simulation.
See the Labs page for the ESIM/ELDO tutorial.
To run ESIM type: esim.