Hello, I have set up the Navier-Stokes-Cahn-Hilliard system in way of step-40 with TrilinosWrappers backend. I have assembled the phase-field part of system in reasonable time 3s, however the solve with Amesos_Superludist lasted cca 700s. I have cca 32768 cells, 71874 dofs for Cahn-Hilliard part of system, cca 2000-3000 dofs per computer core I have used together 32 cores as the Navier Stokes part has 2773956 dofs (approximately 85000 dofs per core). I have heard that reasonable limit of the size of linear system for any direct solver is 100 000 unknows.
Could You give me a gist, where the problem could be? I suppose, that my setup of matrices is OK, as the assemble quite quick is. Do You have practical experience with Amesos_Superludist used in TrilinosWrappers? Thank You Marek -- The deal.II project is located at http://www.dealii.org/ For mailing list/forum options, see https://groups.google.com/d/forum/dealii?hl=en --- You received this message because you are subscribed to the Google Groups "deal.II User Group" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
