[petsc-users] adding mat rows

[Carles Bona]

Hello again,

MatMatMult not supported for B of type mpibaij (where A*B = C). Can A be of
type mpibaij? Will C be of type mpibaij if A is but B is not?

I see the limitation to aij/dense is mentioned in the documentation in
matmatmultsymbolic and matmatmultnumeric, but not in matmatmult. Probably
they have the same limitation...

I guess I'm back to row-reading-adding.

Carles

2015-11-19 21:49 GMT+01:00 Jed Brown <jed at jedbrown.org>:

> Carles Bona <carlesbona at gmail.com> writes:
>
> > Sorry, yes, I meant losing less information than I would lose without
> > adding beforehand.
>
> That's not true either (as described).  You're replacing two equations
> with one equation, so no matter how you do it, you're opening a 1D
> space.
>
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