Reply To: Problem during restarting of System Coupling

[Rob]

Time step size will dictate how many steps are needed. CPU speed/parallel may speed up each time step. Unfortunately you'll find there's a maximum benefit to increasing the core count.

12 hours for 100 time steps is very slow: check to see which part of the simulation is taking the time: I know Mechanical doesn't scale anything like as well as Fluent. How many iterations does it take to converge each Fluent time step?