[petsc-dev] Use of dmmg->computefunction ?

[Matthew Knepley]

On Thu, Jan 14, 2010 at 3:54 PM, Barry Smith <bsmith at mcs.anl.gov> wrote:

>
> On Jan 14, 2010, at 3:51 PM, Matthew Knepley wrote:
>
>  I thought I was using it somewhere. I do think that this belongs. You
>> should not have to
>> have a solver in order to define a function over a space.
>>
>
>  Agreed there could/should be places to store functions, but it ain't DMMG.
>

I was mistaken here. I am using the ability of the DM to compute functions.
If this DMMG
is merely a pass-through, or aggregator (does it on all DMs) its alright.

  Matt


>  Barry
>
>
>
>>  Matt
>>
>> On Thu, Jan 14, 2010 at 3:50 PM, Barry Smith <bsmith at mcs.anl.gov> wrote:
>>
>>  How many times am I going to have to pound it into your head that DMMG is
>> a misconceived, poorly designed piece of junk :-(
>>
>>  The pointer is not there by design and I don't have any intention of
>> using it. Likely I just thought it was needed when I scrawled out the
>> original code and its been there since then.
>> There is a Jacobian pointer that is used, but I don't like :-(
>>
>>
>>  Barry
>>
>>
>> On Jan 14, 2010, at 3:34 PM, Jed Brown wrote:
>>
>> This isn't currently used anywhere.  Is there some case where it would
>> be needed (rather than by calling SNESComputeFunction as is currently
>> done)?
>>
>> Jed
>>
>>
>>
>>
>> --
>> What most experimenters take for granted before they begin their
>> experiments is infinitely more interesting than any results to which their
>> experiments lead.
>> -- Norbert Wiener
>>
>
>


-- 
What most experimenters take for granted before they begin their experiments
is infinitely more interesting than any results to which their experiments
lead.
-- Norbert Wiener
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