I actually prefer the model where a geometric object (e.g., a DA) controls the restriction (e.g., DAGlobalToLocalBegin, etc).
On Tue, Dec 7, 2010 at 2:28 PM, Jed Brown <jed at 59a2.org> wrote: > On Tue, Dec 7, 2010 at 21:25, Dmitry Karpeev <karpeev at mcs.anl.gov> wrote: > >> As far as I can tell, the "local form" idea implies some mesh with a >> stencil or overlap behind a Vec, >> which by itself is a purely algebraic construct. Does this mean that we >> are injecting some geometry >> into Vec's semantics? >> > > Certainly not geometry. It's topologically-derived information which > currently sits in VecScatter (ignoring VecGhost for now). > > Jed > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.mcs.anl.gov/pipermail/petsc-dev/attachments/20101207/2cac41f7/attachment.html>
