thanks (everyone) for the help, adding the include took care of the problem, I won't make that mistake again..
As for the inheritance change, that does make alot of sense, I am just not confident enough right now to implement this change with my newbie C++ skills. I think I have a decent grasp on a postprocessing using ExplicitSystem so I'd like to start a DiffSystem section on the wiki and add this as an example. Also, I'm using the Gnu Scientific Library to calculate the eigenvalues/vectors. I have used this library alot in the past (years ago), is this the best way to go for my postprocessing tasks? Nasser Mohieddin Abukhdeir Graduate Student (Materials Modeling Research Group) McGill University - Department of Chemical Engineering http://webpages.mcgill.ca/students/nabukh/web/ http://mmrg.chemeng.mcgill.ca/ Roy Stogner wrote: > On Sun, 31 Aug 2008, Nasser Mohieddin Abukhdeir wrote: > > >> 3) What I am working on now is to implement the very convenient >> FEMSystem::elem_subsolutions variable but for the postprocessing >> ExplicitSystem class. Does this make sense? It seems like the cleanest >> way to get access to the postprocessing variables that correspond to the >> primary variables on the element of interest. >> > > This definitely makes sense, and it is probably the easiest way for > you to go, but: > > One design change I've been considering would be to have DiffSystem > (and thus FEMSystem) inherit directly from System rather than from > ImplicitSystem, so that the FEMSystem could manage it's own jacobian > matrix. The sparse matrix creation could then be disabled if the user > requested it. My interest in this would be to make FEMSystem a little > more attractive for use in jacobian-free solves... that's not such an > immediate concern that I plan to do it myself any time soon, but since > it would be useful for you too, if you wanted to make the changes I'd > be happy to accept a patch. > --- > Roy > ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Libmesh-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/libmesh-users
