On Wed, Sep 10, 2008 at 12:11 PM, Roy Stogner <[EMAIL PROTECTED]> wrote: > > Would it make sense to add the option to include global scalar > parameters to the vectors of variables included in a System? I'm > thinking right now about a surface ablation rate that ends up coupled > to every element in a system via a moving-mesh model, but I think John > had to workaround our lack of the same feature when doing his arc > length continuation solver.
Right. The scheme I ended up implementing essentially does more work but doesn't need to muck with the sparsity patter for the rest of the PDEs. This non-invasive approach made sense for arclength continuation because the flow PDEs can still be solved on their own without much modification. For a more tightly-coupled scenario like you are discussing, I think it definitely makes sense to have the option to take a more specialized, sparsity modifying approach. Unfortunately I don't know much about the implementation details which would be required to make this work... -- John ------------------------------------------------------------------------- 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-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/libmesh-devel
