Thanks, Matt. Let me make sure, so Dirichlet BC on the left boundary --> u[i= 0][] = constant Neumann BC on the right boundary --> u[i=16][]-u[i=15][])/dx = constant is that correct?
best, Alan On Fri, Sep 2, 2011 at 10:20 AM, Jed Brown <jedbrown at mcs.anl.gov> wrote: > On Fri, Sep 2, 2011 at 09:20, Alan Wei <zhenglun.wei at gmail.com> wrote: > >> I thought there is a ghosted grid around Dirichlet and Neumann BC's. > > > Only if you ask for it with DMDA_BOUNDARY_GHOSTED (not available in > petsc-3.1). This example does not. > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20110902/9c2b5369/attachment.htm>
