add function call back

Author: ChrisRackauckas

Project.toml

@@ -1,7 +1,7 @@
 name = "SparseDiffTools"
 uuid = "47a9eef4-7e08-11e9-0b38-333d64bd3804"
 authors = ["Pankaj Mishra <[email protected]>", "Chris Rackauckas <[email protected]>"]
-version = "1.16.0"
+version = "1.16.1"
 
 [deps]
 Adapt = "79e6a3ab-5dfb-504d-930d-738a2a938a0e"

src/differentiation/compute_jacobian_ad.jl

@@ -12,6 +12,8 @@ getsize(::Val{N}) where N = N
 getsize(N::Integer) = N
 void_setindex!(args...) = (setindex!(args...); return)
 
+const default_chunk_size = ForwardDiff.pickchunksize
+
 function ForwardColorJacCache(f,x,_chunksize = nothing;
                               dx = nothing,
                               colorvec=1:length(x),