LayoutPointers

abstract type AbstractStridedPointer{T,N,C,B,R,X<:Tuple{Vararg{Union{Int,StaticInt},N}},O<:Tuple{Vararg{Union{Int,StaticInt},N}}} end

T: element type N: dimensionality C: contiguous dim B: batch size R: rank of strides X: strides O: offsets

P are the pointers I contains indexes into strides (dynamic) and X (static) X static strides

G is a tuple(tuple((Aind,A's dim),(Aind,A's dim)), ()) it gives the groups.