Adapt SeqOverlappingSchwarz for matrices with scalar block_type
This MR adapts the SeqOverlappingSchwarz
preconditioner for matrices with scalar block_type.
Is there a more elegant way of doing this:
static constexpr size_t n = std::decay_t<decltype(Impl::asMatrix(std::declval<K>()))>::rows;
?
Feel free to push into the source branch!