Re: [Libmesh-users] nonlinear system assembly

2008-10-06 Thread Derek Gaston
On Oct 4, 2008, at 3:07 PM, Nasser Mohieddin Abukhdeir wrote: > Specifically to answer your question, as I understand it there are two > general ways to solve PDEs in LibMesh. There is actually a third way. You can use PetscNonlinearSolver (or NOXNonlinearSolver for Trilinos) directly suppl

Re: [Libmesh-users] nonlinear system assembly

2008-10-04 Thread Roy Stogner
On Fri, 26 Sep 2008, Michael Povolotskyi wrote: > Which libmesh object I have to create: NonlinearInplicitSystem or > DifferentiableSystem? Either will give you access to PETSc's Newton-Krylov solvers; the way you define your physics will differ. --- Roy -

Re: [Libmesh-users] nonlinear system assembly

2008-10-04 Thread Nasser Mohieddin Abukhdeir
- > > Message: 8 > Date: Fri, 26 Sep 2008 17:12:30 -0400 > From: Michael Povolotskyi <[EMAIL PROTECTED]> > Subject: [Libmesh-users] nonlinear system assembly > To: [email protected] > Message-ID: <[EMAIL PROTECTED]> > Content-Type: text/plain; c

[Libmesh-users] nonlinear system assembly

2008-10-04 Thread Michael Povolotskyi
Dear Libmesh developers, I'm working on a non-linear partial differential equation. I'd like to solve it using the Newton method. My question: Which libmesh object I have to create: NonlinearInplicitSystem or DifferentiableSystem? Thank you, Michael.