Gideon Simpson wrote: > I'm interested in implementing the Elman et al. preconditioner for > Stokes in the fenics suite. This involves building an approximate schur > complement for the block strucutre matrix > A B^T > B 0 > representing the weak form of the stokes operator. has anyone > experimented, if not with this sort, some sort of block structure using > the fenics front end? > >
No, when using the default uBLAS backend, there aren't any sophisticated preconditioners. You can create a preconditioner which derives from uBLASPreconditioner. You can also look at using PETSc which provides a variety of preconditioners. Garth > -gideon > > > > ------------------------------------------------------------------------ > > _______________________________________________ > DOLFIN-dev mailing list > [email protected] > http://www.fenics.org/mailman/listinfo/dolfin-dev _______________________________________________ DOLFIN-dev mailing list [email protected] http://www.fenics.org/mailman/listinfo/dolfin-dev
