[petsc-users] How to use ghost points to store updated data?

[Jed Brown]

On Fri, Oct 7, 2011 at 01:29, Li, Zhisong (lizs) <lizs at mail.uc.edu> wrote:

> In my current case, the computation is performed solely in one local vector
> but the updated data points may be beyond the bound of this local vector
> (still within its ghost points' range).  So how to store these data from
> ghost points to global vector?  "DALocaltoGlobal" seems to ignore all values
> in ghost points for each local vector.


http://www.mcs.anl.gov/petsc/petsc-as/snapshots/petsc-current/docs/manualpages/DM/DMLocalToGlobalBegin.html

with ADD_VALUES
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