[FLASH-USERS] Using guard cell corners... bad?

[Dean Townsley]

Hi Klaus,

Thanks very much for the confirmation that it "should" work.  Aaron is 
running some more tests to check a couple of possibilities.  We'll keep 
you posted.

Dean

Klaus Weide wrote:
> On Thu, 3 Mar 2011, Aaron Jackson wrote:
>
>   
>> Hi Kevin,
>>
>> Thanks for the help... Currently, though diagonals are set to true, as far as
>> I can tell. In the amr_runtime_parameters.dump file from my simulation,
>> diagonals is set to true. The issue isn't that the corner cells aren't being
>> filled, it just seems that they're being filled from extrapolating information
>> in the edge-adjacent neighbors rather than being copied/prolonged/restricted
>> with data from the diagonally-adjacent neighbor. So the data is there, it's
>> just not correct. [...]
>>     
>
> Aaron,
>
> I just want to confirm that, in FLASH, 'diagonals' is always left to 
> the default value of .TRUE.
>
> Filling of corner cells by 'extrapolating information in the edge-adjacent 
> neighbors' should never happen in the interior of the domain.
>
> If you can construct a simple test case that demonstrates wrong behavior,
> we will want to look into this as a bug.
>
> Klaus
>
>