[FLASH-USERS] V-cycle not converging

[Tomasz Plewa]

Seyit -

Moving to FLASH3 will potentially offer you more support. It does not 
guarantee that your problem will be automatically solved. Well, in 
general nothing can be taken for granted. But in this particular case, 
we have seen problems with FLASH2 multigrid that migrated to FLASH3. As 
I said, no guarantee (but still worth trying).

By the way, can you remind this audience what you are missing from FLASH2?

Tomek
--
Seyit Hocuk wrote:
> Hi,
>
> In some of my simulations after some time into the simulation, I get a 
> lot! of V-cycle warnings. What is the best way to avoid these and how 
> bad are these warnings. I mean should I restart simulations or can I 
> waive this warning.
>
> Is changing "mgrid_max_residual_norm" a good option? Or should I use 
> better optimizations. At the moment I am not using optimizations, but I 
> noticed that using -03 reduced these warnings. How can I avoid them.
>
> I bet you all will say that FLASH3 will solve my problems :)
>
> Thanks,
> Seyit
>
>   
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