Multicore and Cluster Computing

Hi all,

One simple and basic question! In comsol by default, number of processors is: 8, in preferences.

Let consider that my model with 8 processor takes 1 day to simulate my project.

If I change the processor to 4, then MY QUESTION: does it take 2 days to solve the problem?

Thanks in advance for your answers.
Best regards,
Sepideh