[petsc-users] Outer Product of two vectors

[Jed Brown]

On Wed, Oct 6, 2010 at 21:38, Harsh Sharma <hsharma.tgjobs at gmail.com> wrote:

> Specifically, I want to compute the outer product for two
> Vec objects that are large enough to require storage on
> multiple processors.
>

Don't do this, create a MatShell and apply it's action with VecDot followed
by VecAXPY.  Storing the dense outer product is insane.

Jed
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