[petsc-users] adding mat rows

[Carles Bona]

Sorry, yes, I meant losing less information than I would lose without
adding beforehand.

Rows are in fact on different processors...

So yes, elementary matrix multiplication sounds like a cool idea! Thanks a
lot!!

Carles
El dia 19/11/2015 21:12, "Jed Brown" <jed at jedbrown.org> va escriure:

> Carles Bona <carlesbona at gmail.com> writes:
>
> > Let's say I want to modify the first equation, but I don't want to lose
> the
> > information there,
>
> 1. The operation you describe still loses information.
>
> 2. Consider expressing your row operations as matrix-matrix multiplication.
>
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