[petsc-users] petsc malloc multidimensional array

[Matthew Knepley]

On Tue, Mar 11, 2014 at 8:37 AM, 吕超 <luchao at mail.iggcas.ac.cn> wrote:

>   Hi, recently,when I use PETSc to bulid 2d arrays such as PetscScalar
> A[512][512],B[512][512],C,D,E,F,..., program always has error of
> Segmentation Violation. So I want to use PetscMalloc to bulid 2d array, and
> I hope that I can also use these 2d array A[i][j] by subscripts as before.
> Could do please tell me how can I do? Thank you.
>
1) This is a C question, not a PETSc question

2) If you are using 2D arrays for fields, you should be using the DMDA,
which has a section in the manual

  Thanks,

     Matt


> LV CHAO
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> 2014/3/11
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-- 
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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