Praveen : DMGetLocalVector(). See petsc/src/snes/examples/tutorials/ex19.c Hong
> So I have to create a global vector AND a local vector using > DMCreateLocalVector. > > Then I do DMGlobalToLocalBegin/End. Does this not lead to too much copying > ? I see there is VecCreateGhost but no such thing for DMDA ? > > Best > praveen > > PS: Would be nice if the reply-to was set to mailing list. I frequently > forget to do Reply All. > > On Wed, Oct 5, 2016 at 7:45 PM, Jed Brown <j...@jedbrown.org> wrote: > >> Praveen C <cprav...@gmail.com> writes: >> >> > Dear all >> > >> > I am using DMDA and create a vector with >> > >> > DMCreateGlobalVector >> > >> > >> > However this does not have ghost values. How should I create vector if I >> > want to access ghost values ? >> >> That's what local vectors are for. >> > >
