integrating petsc code into non petsc code

[Matthew Knepley]

We can't tell anything unless you send

  a) the WHOLE error message

  b) the exact command line executed

  Matt

On Tue, Apr 21, 2009 at 10:27 AM, Pierre-Yves Aquilanti <sperif at gmail.com>wrote:

> Hello everyone,
>
> i'm trying to integrate petsc code into one big software. petsc would act
> as a solver for the program.
> The way that i try to integrate my petsc code is like that:
>
> ########################
> program myoldnonpetsccode
>
> use mymodule
>
> implicit none
>
> call process_petsc
>
> end myoldnonpetsccode
> ########################
> module mymodule
> implicit none
>
> #include "finclude/petsc.h"
>
> contains
> subroutine process_petsc
> call PetscInitialize(PETSC_NULL_CHARACTER,ierr)
>
> call PetscFinalize(ierr)
>
> end subroutine process_petsc
> end module mymodule
> ###############
>
>
> The compiler used for petsc, mpich and the non-petsc code is the same
> (PGI). I'm perfectly making my module file (.mod) for mymodule and object
> one (.o). This one is inserted into a library file (libtest.a).
> When i try to make my binary "myoldnonpetsccode" my compiler tells me
> during the linking process that there's two undefined reference for
> 'petscinitialize_' and 'petscfinalize_'. I verified that petsc libraries
> where included during linking process (with -L/mypathtopetsclib and
> -lpetsc).
> I don't find any answer to this on the internet and documentation.
>
> Do you have any clue on what would be the problem ?
>
> Thanks a lot
>
> Best regards
>
> PYA
>



-- 
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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