petsc4py.typing.NNZSpec#
- petsc4py.typing.NNZSpec#
Nonzero pattern specification.
A single
intcorresponds to fixed number of non-zeros per row. ASequenceofintindicates different non-zeros per row. If a 2-tupleis used, the elements of the tuple corresponds to the on-process and off-process parts of the matrix.alias of
Union[int,Sequence[int],tuple[Sequence[int],Sequence[int]]]