CondesdEigenSystem removes Dirichlet rows and columns from the matrix using create_submatrix. Hence I don't think you'd have to worry about what calling DofMap::constrain_element_matrix does to those entires since they'll be removed anyway.
David On 11/14/2013 10:19 AM, Manav Bhatia wrote: > Hi, > > Should the DofMap::constrain_element_matrix be called before assembly > of element matrix for the CondensedEigenSystem? > > I suspect that the answer is "yes" for AMR, but what if > DirichletBoundaries are defined for the system? The idea for the > CondensedEigenSystem would be to create a reduced system without the dofs > with Dirichlet conditions, but I am not sure if calling the constrain > method would inappropriately modify the matrices. > > Any thoughts would be appreciated. > > Thanks, > Manav > ------------------------------------------------------------------------------ > DreamFactory - Open Source REST & JSON Services for HTML5 & Native Apps > OAuth, Users, Roles, SQL, NoSQL, BLOB Storage and External API Access > Free app hosting. Or install the open source package on any LAMP server. > Sign up and see examples for AngularJS, jQuery, Sencha Touch and Native! > http://pubads.g.doubleclick.net/gampad/clk?id=63469471&iu=/4140/ostg.clktrk > _______________________________________________ > Libmesh-users mailing list > Libmesh-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/libmesh-users ------------------------------------------------------------------------------ DreamFactory - Open Source REST & JSON Services for HTML5 & Native Apps OAuth, Users, Roles, SQL, NoSQL, BLOB Storage and External API Access Free app hosting. Or install the open source package on any LAMP server. Sign up and see examples for AngularJS, jQuery, Sencha Touch and Native! http://pubads.g.doubleclick.net/gampad/clk?id=63469471&iu=/4140/ostg.clktrk _______________________________________________ Libmesh-users mailing list Libmesh-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/libmesh-users
