[petsc-dev] asm / gasm

[Mark Adams]

I see, thanks,

On Sun, Jul 3, 2016 at 8:00 PM, Fande Kong <fdkong.jd at gmail.com> wrote:

> If you already have the overlapping subdomain, you do not have to set the
> non-overlapping subdomain.  If you already passed the overlapping
> subdomain, you could not increase the overlap any more (however, we could
> enable this very easily, but no many user cases, I think).
>
>
> On Sun, Jul 3, 2016 at 10:45 AM, Mark Adams <mfadams at lbl.gov> wrote:
>
>> PetscErrorCode  PCASMSetLocalSubdomains(PC pc,PetscInt n,IS is[],IS is_local[])
>>>>
>>>>
>>>>
>>> "is" is the overlapping subdomain, and "is_local" is the subdomain
>>> without overlap.
>>>
>>>
>> So if I have some overlapping subdomains (I don't) I would have to prune
>> the IS to get some non-overlapping subdomain?  Is this just for something
>> internal or does it affect the semantics of the solver?  And I assume I can
>> still set the overlap and ASM will grow my subdomains accordingly?
>>
>
>
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