[petsc-users] error handling

[Sam Guo]

I don't have a specific case yet. Currently every call of PETSc is checked.
If ierr is not zero, print the error and return. For example,
   Mat A; /* problem matrix */
   EPS eps; /* eigenproblem solver context */
   EPSType type;
  PetscReal error,tol,re,im;
  PetscScalar kr,ki; Vec xr,xi; 25
  PetscInt n=30,i,Istart,Iend,nev,maxit,its,nconv;
  PetscErrorCode ierr;
  ierr = SlepcInitialize(&argc,&argv,(char*)0,help);CHKERRQ(ierr);
  ierr = PetscOptionsGetInt(NULL,NULL,"-n",&n,NULL);CHKERRQ(ierr);
   ierr = PetscPrintf(PETSC_COMM_WORLD,"\n1-D Laplacian Eigenproblem,
n=%D\n\n",n);CHKERRQ(ierr);

I am wondering if the memory is lost by calling CHKERRQ.

On Mon, Jan 20, 2020 at 10:14 AM Dave May <dave.mayhem23 at gmail.com> wrote:

>
>
> On Mon 20. Jan 2020 at 19:11, Sam Guo <sam.guo at cd-adapco.com> wrote:
>
>> Dear PETSc dev team,
>>    If PETSc function returns an error, what's the correct way to clean
>> PETSc?
>>
>
> The answer depends on the error message reported. Send the complete error
> message and a better answer can be provided.
>
> Particularly how to clean up the memory?
>>
>
> Totally depends on the objects which aren’t being freed. You need to
> provide more information
>
> Thanks
> Dave
>
>
>> Thanks,
>> Sam
>>
>
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