On 4/28/10 1:26 PM, Roy Stogner wrote: > > On Wed, 28 Apr 2010, Boyce Griffith wrote: > >> For AMR meshes, should these sorts of constraints be applied only for >> the nodes of level 0 elements? Or is this something that I don't have >> to worry about explicitly? > > You need to apply your constraints for all dofs that aren't already > constrained - everything except hanging nodes in adaptive h refinement > and their equivalent high-p dofs in adaptive p refinement. In your > case it shouldn't matter whether or not you constrain hanging nodes as > well, but if you do then turn off forbid_constraint_overwrite when > adding them; by default we assume adding two different constraints to > the same node is a bug.
Looking ahead to inhomogenous boundary conditions --- is there a mechanism for determining if a particular node is a hanging node, so that I can avoid re-constraining those DOFs? -- Boyce ------------------------------------------------------------------------------ _______________________________________________ Libmesh-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/libmesh-users
