[petsc-users] EXTERNAL: How to run Petsc in Fortran

[Wadud.Miah at awe.co.uk]

What is the compilation command you are executing? It is probably because you are not running the pre-processor in Fortran which is switched off in the PGI compiler by default.

Regards,
Wadud.

________________________________
From: petsc-users-bounces at mcs.anl.gov [mailto:petsc-users-bounces at mcs.anl.gov] On Behalf Of Sonya Blade
Sent: 29 April 2013 11:59
To: petsc-users at mcs.anl.gov
Subject: EXTERNAL: [petsc-users] How to run Petsc in Fortran

Dear All,
I'm experiencing the difficulties with running the Petsc in Fortran Language, I'm using gfortran
integrated in the CodeBlock editor. I've compiled/installed the Petsc , Slepc and having no
problems calling the Petsc/Slepc functions in C, it works perfectly.

When it comes to using Petsc in Fortran I follow the instructions given in that article, especially the item 3
http://www.mcs.anl.gov/petsc/petsc-current/docs/manualpages/Sys/UsingFortran.html

but so far I couldn't succeed to run them succesfully in Fortran,  my main code is as follow:

program main
implicit none
#include <finclude/petscsys.h>
#include <finclude/petscvec.h>
#include <finclude/petscvec.h90>

PetscReal norm

print *,"Hello World "
end

I've added all the related include folders to search path (Petsc_Dir\include\finclude etc..) and library
file "libpetsc.a" which results after Petsc compilation, but still compiler complains about the
"Error: Unclassifiable statement at (1)" PetscReal norm. Which means that compiler is unaware of type
identifier PetscReal. What am I missing here ?

Your help will be appreciated,

Regards,




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