[petsc-users] PCFactorSetMatSolverPackage / PCFactorGetMatSolverPackage

[Jed Brown]

On Tue, Aug 2, 2011 at 06:53, Clemens Domanig <clemens.domanig at uibk.ac.at>wrote:

> The problem with PCFactorGetMatSolverPackage is I didn't manage to use it.
>
> const MatSolverPackage pack;
>

Insert here:

PCSetType(prec,PCCHOLESKY);


> PCFactorGetMatSolverPackage( prec, &pack);
>

The type has to be set first, otherwise the PC doesn't have any concept of a
solver package. I have updated this function to return NULL instead of an
undefined value in this case, thanks.

Barry, speak up if you would prefer an error. I think PetscUseMethod() is
somewhat overused in query functions at present because there is a
reasonable non-error condition that can be returned.
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