I’m trying to setup GASM, but I’m probably misunderstanding something.
If I have this mesh
0 —— 1 —— 2 —— 3 —— 4
subdomain 1 | subdomain 2
I create an interior (no overlap) and an outer (with overlap) IS for both
subdomains.
In my naive understanding
iis1 = {0, 1}
ois1 = {0, 1, 2}
and
iis2 = {3, 4}
ois2 = {2, 3, 4}
but then the node at the interface (node 2) does not belong to any interior IS.
Should node 2 belong to both interior IS? Or should it belong only to one of
the domains?
Thanks,
Simone
On Aug 15, 2018, at 22:11, Griffith, Boyce Eugene <[email protected]> wrote:
>
>
>> On Aug 15, 2018, at 10:07 PM, Smith, Barry F. <[email protected]> wrote:
>>
>>
>> Yes you can have "overlapping fields" with FIELDSPLIT but I don't think you
>> can use FIELDSPLIT for your case. You seem to have a geometric decomposition
>> into regions. ASM and GASM are intended for such decompositions. Fieldsplit
>> is for multiple fields that each live across the entire domain.
>
> Basically there is one field the lives on the entire domain, and another
> field that lives only on a subdomain.
>
> Perhaps we could do GASM for the geometric split and FIELDSPLIT within the
> subdomain with the two fields.
>
>> Barry
>>
>>
>>> On Aug 15, 2018, at 7:42 PM, Griffith, Boyce Eugene <[email protected]>
>>> wrote:
>>>
>>> Is it permissible to have overlapping fields in FIELDSPLIT? We are
>>> specifically thinking about how to handle DOFs living on the interface
>>> between two regions.
>>>
>>> Thanks!
>>>
>>> — Boyce
>>
>
