I created a transport device with two equal electrode and scattering region. the electrode has 72 atom and the scattering region has 114 atom. I use DFT calculator and 6*6*6 K points with 200 rydberg mesh cut-off. this is three days that i ran the job on a 48 cor cluster but my calculation didn't converged yet. I also selected I-v curve , current density and transmission spectrum on analysis tab. can anyone help me about this situation and tell me an approximation about the simulation time needed for my device.