Hello list, is it possible to store just the nonzero pattern of a large (sparse) matrix in a file? If I write the whole matrix to disk (PetscViewerBinaryOpen/MatView) its size is about 30MB. As I only need its structure it would be a good idea to load and store just the non-zero pattern of the matrix.
Has anyone tried to do that and are there corresponding functions in petsc-dev? Regards Thomas
