On Mon, Aug 20, 2012 at 10:12 AM, Matthew Knepley <knepley at gmail.com> wrote:
> Personally, I think this is quite cumbersome compared to the Local/Global > vector strategy we use in DM, and > does not have any real advantages. > For example, storage for the ghost values is allocated for every vector duplicated from a VecGhost (e.g. the entire Krylov basis). This isn't an issue if you have large subdomains, but for smallish subdomains using methods with a fat stencil, that can double the storage needed for the Krylov basis. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20120820/9afc032d/attachment.html>
