[petsc-dev] Lagging the numerical factorization for one of the fields of fieldsplit preconditioner

[Jed Brown]

On Wed, Mar 16, 2011 at 00:29, Barry Smith <bsmith at mcs.anl.gov> wrote:

> Of course I know what A is. Because I am only doing this tracking after a
> MatGetSubmatrix() has been called which provide the information about what A
> is.


Yes, that's much better and another reason for MatGetSubMatrix() to retain
ownership of the submatrices.
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