Out of curiosity, what is the purpose of the Ti parameter in SparseMatrixCSC type?
I managed to track down this old commit: https://github.com/JuliaLang/julia/commit/a0961e5df69da9f736ac8cb54a1186433fa6c1ba which suggests it was introduced in order to conserve space for small matrices, but now it seems to always be the default Int type. -simon
