Hi Christoph, We ran our multidomain application in parallel using SuperLU as solver. However, this lead to an increase in wall time. Since, for now, we do not solve Stokes flow it might be possible to use an iterative solver for our fuel cell models and speed up the simulation through parallelization. Is there a test case using an iterative solver?
Kind regards Georg -----Ursprüngliche Nachricht----- Von: Dumux [mailto:[email protected]] Im Auftrag von Christoph Grüninger Gesendet: Dienstag, 16. Februar 2016 16:40 An: [email protected] Betreff: Re: [DuMuX] Multidomain in parallel Hi Georg, sure, you can use MultiDomain / MultiDomaingrid in parallel. The best documentation about parallel computing should be the grid howto. You can download it from the website, see http://www.dune-project.org/doc/grid-howto/grid-howto.pdf or build it yourself from the dune-grid-howto module. In DuMuX there should be tests that run in parallel, too. But not coupled ones. In DuMuX we introduced the MultiDomain stuff for coupling Stokes with Darcy. Stokes leads to a saddle-point problem that could not be efficiently solved by an iterative solver. All direct solvers are not parallel. That's why we never tried to run the whole problem in parallel. If your assembly is slow, it still might be worth a try. Bye Christoph -- The method has been developed for use on a high-speed electronic computer and would be impractical for hand-solution purposes. [Harlow & Welch 1965] _______________________________________________ Dumux mailing list [email protected] https://listserv.uni-stuttgart.de/mailman/listinfo/dumux
