On Tue, 29 Sep 2015, Harshad Sahasrabudhe wrote: > I'm solving a system of equations in which I need non-local contributions > to the Jacobian, as in Ke(i,j) where i and j are dof indices which might > not be on the same element. Can this be done in NonlinearImplicitSystem? If > yes, then how is the matrix parallelized (number of nz, oz etc...)?
How far non-local and how sparse are you talking? If i and j are on neighboring elements we have some options for automatically expanding the Jacobian that far. If i and j might be halfway across the mesh then support is more limited and potentially much more expensive. --- Roy ------------------------------------------------------------------------------ _______________________________________________ Libmesh-users mailing list Libmesh-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/libmesh-users
