[petsc-users] Values of PETSC_DECIDE

Matthew Knepley knepley at gmail.com
Sat Dec 3 11:37:06 CST 2016


On Sat, Dec 3, 2016 at 11:33 AM, Massoud Rezavand <msdrezavand at gmail.com>
wrote:

> Dear PETSc team,
>
> Supposing to have a dynamic Mat and Vec, if I let PETSc to decide the
> number of local rows and local columns, i.e
>
> MatSetSizes(A, PETSC_DECIDE, PETSC_DECISDE, M, N)
>
> How can I get these numbers from PETSc?
>

http://www.mcs.anl.gov/petsc/petsc-current/docs/manualpages/Vec/VecGetLocalSize.html
http://www.mcs.anl.gov/petsc/petsc-current/docs/manualpages/Mat/MatGetLocalSize.html#MatGetLocalSize

   Matt


> Thanks,
> Massoud
>



-- 
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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