We cannot see your code. The warning says that you give a value to a
variable, but then never use it. We cannot tell if that is true without
looking at the code.
Thanks,
Matt
On Tue, Jul 16, 2024 at 9:54 AM Ivan Luthfi <ivanluth...@gmail.com> wrote:
> Hello guys, I am still trying to compile my old multigrid code. But i get
> so many warning, one of those warning is like this: MsFEM_poisson2D_DMDA.
> c: In function ‘int main(int, char**)’: MsFEM_poisson2D_DMDA. c: 185: 48:
> warning: variable ‘finest’
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> Hello guys,
> I am still trying to compile my old multigrid code. But i get so many
> warning, one of those warning is like this:
> MsFEM_poisson2D_DMDA.c: In function ‘int main(int, char**)’:
> MsFEM_poisson2D_DMDA.c:185:48: warning: variable ‘finest’ set but not used
> [-Wunused-but-set-variable]
> 185 | PetscInt mg_level = 2, finest;
> | ^~~~~~
> MsFEM_poisson2D_DMDA.c:56:44: warning: variable ‘pi’ set but not used
> [-Wunused-but-set-variable]
> 56 | PetscScalar a,b,c,d,dt,pi;
> | ^~
> MsFEM_poisson2D_DMDA.c:57:35: warning: variable ‘Lx’ set but not used
> [-Wunused-but-set-variable]
> 57 | PetscInt M,Lx,Ly,Nx,Ny,Mx,My;
> | ^~
> MsFEM_poisson2D_DMDA.c:57:38: warning: variable ‘Ly’ set but not used
> [-Wunused-but-set-variable]
> 57 | PetscInt M,Lx,Ly,Nx,Ny,Mx,My;
> | ^~
> MsFEM_poisson2D_DMDA.c:58:33: warning: variable ‘hx’ set but not used
> [-Wunused-but-set-variable]
> 58 | PetscScalar hx,hy,Hx,Hy;
> | ^~
> MsFEM_poisson2D_DMDA.c:58:36: warning: variable ‘hy’ set but not used
> [-Wunused-but-set-variable]
> 58 | PetscScalar hx,hy,Hx,Hy;
> | ^~
> MsFEM_poisson2D_DMDA.c:58:39: warning: variable ‘Hx’ set but not used
> [-Wunused-but-set-variable]
> 58 | PetscScalar hx,hy,Hx,Hy;
> | ^~
> MsFEM_poisson2D_DMDA.c:58:42: warning: variable ‘Hy’ set but not used
> [-Wunused-but-set-variable]
> 58 | PetscScalar hx,hy,Hx,Hy;
> | ^~
> MsFEM_poisson2D_DMDA.c:60:58: warning: variable ‘Nondimensionalization’
> set but not used [-Wunused-but-set-variable]
> 60 | PetscInt
> Compute_finegridsolution,Nondimensionalization;
> |
> ^~~~~~~~~~~~~~~~~~~~~
> MsFEM_poisson2D_DMDA.c:283:54: warning: ‘%d’ directive writing between 1
> and 11 bytes into a region of size between 0 and 99
>
>
> Can you guys help me to fix or solve this warning in order to get the code
> run smoothly. Please help
>
>
> --
> Best regards,
>
> Ivan Luthfi Ihwani
>
>
--
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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