RT1-code

0441061 - ÚGN 2015 RIV CZ eng L4 - Software
Blaheta, Radim - Hasal, Martin - Domesová, S. - Béreš, M.
RT1-code.
Internal code: RT1-code ; 2014
Technical parameters: k volnému využití
Economic parameters: software na výpočet smíšenými konečnými prvky
R&D Projects: GA MŠMT ED1.1.00/02.0070
Institutional support: RVO:68145535
Keywords : solution of saddle point FEM systems * mixed Raviart-Thomas finite elements * Darcy flow
Subject RIV: IN - Informatics, Computer Science
http://www.ugn.cas.cz/index.php?p=public/outputs.php

RT1 code is devoted for assembling saddle point FEM systems arising from lowest order Raviart-Thomas discretization of Darcy flow problems. These systems are subsequently used for testing iterative solvers and preconditioners. The code is characterized by: simplicity and possibility of easy modifications, directly solving model problems on square domains (generalization possible), controlled random coefficient oscillations (stochastic generation of heterogeneity), fast system assembling using vectorization and sparse reconstruction, possible testing of Krylov type solvers with both (block) matrix and matrix free (variable) preconditioners.
Permanent Link: http://hdl.handle.net/11104/0244128