Dear Chen, I guess that the namespace LA::MPI refers to PETScWrappers or PETScWrappers or TrilinosWrappers (without MPI). According to my knowledge, the answer to the first two question is no. Regarding the DoFHandler, a component wise or block wise renumbering of the degrees of freedom is usually performed when block systems are used. The SparsityPattern is replaced by a BlockSparsityPattern. You may consider one of the tutorial programs on the Stokes problem for details.
Best wishes, Sebastian [email protected] schrieb am Freitag, 15. April 2022 um 10:35:57 UTC+2: > Hi everyone, > > Is it possible to convert BlockSparseMatrix to SparseMatrix in deal.ii? > If so, Is it possible to convert LA::MPI::BlockSparseMatrix to > LA::MPI::SparseMatrix in deal.ii? and what should I do to dof_handler and > Sparse_pattern? > > best, > chen > -- 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]. To view this discussion on the web visit https://groups.google.com/d/msgid/dealii/81203a72-cf76-4b74-acd1-7e82a1fddeecn%40googlegroups.com.
