Using timescale to speed simulation run time

In reply to dave_59:

Hi Dave,

I am not sure I completely got your point about the different clock rates.
Consider my TB parameters as below :

Scenario1 : `timescale 1ns/1ns
Clock period - 100Mhz
Task1 takes 6ms (simulation time, test ended in 30min)

Scenario 2 : `timescale 1fs/1fs
Clock period - 100Mhz

I understand that Task1 will still take 6ms of simulation time. But can we expect the test to end in less than 30min?

Regards,
Parvathy