Hi All,
Can somebody help me with my solver settings confusion. I'm trying to setup a 3D RF module simulation with around 250.000 elements only with periodic boundary condition. I read that I should use GMG with vanka as the smoother but i keep having problems with it (very slow convergence or not even converging). Could somebody tell me whether or not there's a better solver choice for such problems in comsol 4.3?
Im also a bit confused about generating the multigrid levels manually. Is there any special restriction or correlation that the different mesh for different multigrid level should have? I was making my different multigridlevels by simply referencing a previous mesh i made for the first multigrid level and use the mesh scale function in comsol 4.3. It seems my simulation is taking way more time to solve with such strategy of multigrid generation :(.
I would very much appreciate it if somebody can share his/ her wisdom with me
Best regards,
Aimi
Can somebody help me with my solver settings confusion. I'm trying to setup a 3D RF module simulation with around 250.000 elements only with periodic boundary condition. I read that I should use GMG with vanka as the smoother but i keep having problems with it (very slow convergence or not even converging). Could somebody tell me whether or not there's a better solver choice for such problems in comsol 4.3?
Im also a bit confused about generating the multigrid levels manually. Is there any special restriction or correlation that the different mesh for different multigrid level should have? I was making my different multigridlevels by simply referencing a previous mesh i made for the first multigrid level and use the mesh scale function in comsol 4.3. It seems my simulation is taking way more time to solve with such strategy of multigrid generation :(.
I would very much appreciate it if somebody can share his/ her wisdom with me
Best regards,
Aimi