[Trilinos-Users] [EXTERNAL] Ghost cell (halo) exchange with Tpetra vectors

[Chris Siefert]

Aditya,

The Tpetra FEMultiVector provides functionality that can do this.

-Chris

On 6/22/19 9:16 PM, Aditya Kashi wrote:
> Hello,
>
> I'm working on an unstructured-grid finite volume code. I've been 
> looking at the Tpetra examples, and examples 5 (redistribution) and 6 
> (custom operator) seem to imply that it's necessary to allocate two 
> separate vectors for a halo exchange. Is that necessary?
>
> I need something like PETSc's ghosted Vecs where the vector is 
> allocated with extra locations for the halo cells but can expose a 
> non-ghosted view to solvers.
>
> If someone could point me to the way this is expected to be done with 
> Tpetra, I would much appreciate it.
>
> Thanks in advance,
> Aditya Kashi
> McGill University
>
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