Hi,
I always liked idea of a *simple* parallel FEM code in Petsc, which shows most
of tricks used in various programs, like parallel assembly of elements and
imposing Dirichlet BCs in a proper way. I think this can eliminate many of How
should I do that questions from newbies like me. I think
On Aug 13, 2008, at 1:50 AM, Farshid Mossaiby wrote:
Hi,
I always liked idea of a *simple* parallel FEM code in Petsc, which
shows most of tricks used in various programs, like parallel
assembly of elements and imposing Dirichlet BCs in a proper way. I
think this can eliminate many
Hi,
we are using PETSc in our code and we have a problem with, I think, the
ghosted values that we expect.
We developed our own pre-conditioner, and try to use it in a parallel
environment. With other precondtioners (PETSc built-in), everything
works fine. But with our home-made one, here
PETSc knows nothing about your domain, so it can't know what you might want
ghosted. I think the thing to do is use a VecScatter to map the input Vec to a
ghosted Vec (called a local vector in DA language).
Matt
On Wed, Aug 13, 2008 at 3:41 PM, Eric Chamberland
Eric.Chamberland at
