parameter m (multiplier) in GF180mcuc PDK not working

[YY87927]

Expected Behavior

multiplier m should represent the number of devices connected in parallel, hence changing the effective total width of transistors

Actual Behavior

but changing multiplier m has completely no effect on the circuit behavior

Current Solution

To simulate a device with large width (ex: a power transistor with wdith > 10mm), we currently have two solutions:

1. manually connect more than 100 MOS in the schematic to achieve the same effect as using the multiplier, since the maximum width of a single MOS is 100um
2. use the provided ideal device nmos4 .sym from Xschem standard library, but still unsure whether the simulation result would be largely different from using nfet_03v3 from the GF180 pdk
   

FYR if anyone is facing the same problem