On Thu, Oct 2, 2014 at 12:08 PM, Sharp Stone <[email protected]> wrote:
> Matt, > > Thank you very much! > > The ex19 used the Gauss-Seidel method. But I'm a little bit wonder whether > we have any examples of Jacobi method to solve such linear systems "(mat)A > dot (vec)X = (vec)B" with dof>1? Thanks in advance! > Try -pc_type jacobi Matt > On Tue, Sep 30, 2014 at 10:15 PM, Matthew Knepley <[email protected]> > wrote: > >> On Tue, Sep 30, 2014 at 9:13 PM, Sharp Stone <[email protected]> wrote: >> >>> Hi all, >>> >>> I have four differential equations to be solved with a linear sparse >>> matrix system that has the form of "(mat)A dot (vec)X = (vec)B". For each >>> node, I have dof=4. I found few tutorials or examples on the KSPSolve with >>> dof>1, and I do know it's possible to solve this problem with Petsc. Are >>> there any sources illustrating ksp solver with dof>1? Many thanks! >>> >> >> Yes, try SNES ex19. >> >> Thanks, >> >> Matt >> >> >>> Sorry for the stupid questions. >>> >>> -- >>> Best regards, >>> >>> >> >> >> -- >> What most experimenters take for granted before they begin their >> experiments is infinitely more interesting than any results to which their >> experiments lead. >> -- Norbert Wiener >> > > > > -- > Best regards, > > Feng > -- What most experimenters take for granted before they begin their experiments is infinitely more interesting than any results to which their experiments lead. -- Norbert Wiener
