[petsc-users] adding mat rows

[Jed Brown]

Carles Bona <carlesbona at gmail.com> writes:

> 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?

Use MPIAIJ for this.
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