Dear All, I'd like to use some of the MatrixCreator functions (like create_laplace_matrix). I'm using the PETScWrappers::MPI::SparseMatrix. The documentation in MatrixCreator says
"All functions take a sparse matrix object to hold the matrix to be created. The functions assume that the matrix is initialized with a sparsity pattern (SparsityPattern) corresponding to the given degree of freedom handler, i.e. the sparsity structure is already as needed. You can do this by calling the DoFTools::make_sparsity_pattern() function." But PETSc handles the sparsity pattern. Can I still use these functions? Thanks, Pearl Flath _______________________________________________
