[petsc-users] variable declaration in Fortran90

[Dharmendar Reddy]

>From what i understand, you should #include the corresponding petscdef
files in the module and the petsc headers in the subroutine.

petsc version installed on machine is petsc-3.2-p5
I use a single include file: #include "finclude/petscdef.h" in the module
and in the subroutines (including the ones that are defined after contains
in the module) and program.
#include "finclude/petsc.h"
 you can use #include "finclude/petsc.h90" if you are using the things such
as vecgetArrayF90

On Tue, Aug 28, 2012 at 3:45 PM, Roc Wang <pengxwang at hotmail.com> wrote:

>  Hello,
>
>
>    I am developing Fortran90 code with PETSc.  Several Modules are defined
> in the code. Such as
>
>   Module MyParameter
>        Implicit none
> #include "finclude/petscsys.h"
> #include "finclude/petscvec.h"
> #include "finclude/petscmat.h"
> #include "finclude/petscpc.h"
> #include "finclude/petscksp.h"
> #include "finclude/petscvec.h90"
> #include "finclude/petscmat.h90"
>
>       Integer::  ... ...
>       Real:: ... ...
>
>
>   End Module MyParameter
>
>   Module MySub
>        Use Myparameter
>      Contains
>        ... ...
>       Call MatSetType(A_Mat, MATAIJ, ierr)
>        ... ...
>   EndModule MySub
>
>
>  Main Program
>       Use MyParameter
>       Use MySub
>  ... ...
>  ... ...
>  End
>
>  If I put all the modules in a single .F90 file, the compilation can be
> done successfully. However, If I put the modules in separated files,  the
> following error information comes out:
>
>  Error: Symbol 'mataij' at (1) has no IMPLICIT type.
>
>  In addition, if I use PetscInt,    PetscErrorCode to declare variables in
> Module MySub, the similar errors come out.  How declare the variable with
> PETSc type in separate files? Thanks.
>
>
>
>
>
>
>
>



-- 
-----------------------------------------------------
Dharmendar Reddy Palle
Graduate Student
Microelectronics Research center,
University of Texas at Austin,
10100 Burnet Road, Bldg. 160
MER 2.608F, TX 78758-4445
e-mail: dharmareddy84 at gmail.com
Phone: +1-512-350-9082
United States of America.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20120828/595dd34d/attachment.html>