[petsc-dev] are petscfe tests functions dual or primal?

[Dharmendar Reddy]

Is the petscFE related functions callable from fortran ?

On Fri, Jan 17, 2014 at 5:29 PM, Matthew Knepley <knepley at gmail.com> wrote:
> On Fri, Jan 17, 2014 at 4:09 PM, Geoffrey Irving <irving at naml.us> wrote:
>>
>> Do the test functions we integrate against to form residuals with
>> PetscFE come from the primal space or the dual space?  I.e., is
>> PetscFE always Galerkin?  If it isn't always Galerkin, when would it
>> be?
>
>
> They come from the dual space. I do not think I have made any assumptions
> that prevent Petrov-Galerkin, but I have also never tried an example.
>
> You can see the code that does tabulation here:
>
>
> https://bitbucket.org/petsc/petsc/src/cdce425498f34eac2bb744f37c9fe1bd5a97b9d8/src/dm/dt/interface/dtfe.c?at=master#cl-2317
>
>    Matt
>
>>
>> Thanks,
>> Geoffrey
>
>
>
>
> --
> 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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Dharmendar Reddy Palle
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