Merge pull request #59 from chriselrod/patch-2

read less memory

Author: YingboMa

src/lu.jl

@@ -38,13 +38,8 @@ for (f, T) in [(:adjoint, :Adjoint), (:transpose, :Transpose)], lu in (:lu, :lu!
     @eval $lu(A::$T, args...; kwargs...) = $f($lu(parent(A), args...; kwargs...))
 end
 
-const RECURSION_THRESHOLD = Ref(-1)
-
 # AVX512 needs a smaller recursion limit
-function pick_threshold()
-    RECURSION_THRESHOLD[] >= 0 && return RECURSION_THRESHOLD[]
-    LoopVectorization.register_size() == 64 ? 48 : 40
-end
+pick_threshold() = LoopVectorization.register_size() == 64 ? 48 : 40
 
 recurse(::StridedArray) = true
 recurse(_) = false