diff --git a/lib/array_iter.ml b/lib/array_iter.ml
new file mode 100644
index 0000000..566813e
--- /dev/null
+++ b/lib/array_iter.ml
@@ -0,0 +1,10 @@
+
+let parallel_iter (f:'a->unit) arr cur_pool = 
+  let arr_len = Array.length arr in
+  Task.parallel_for cur_pool ~start:0 ~finish:(arr_len - 1) ~body:(fun i->
+    f arr.(i))
+
+let parallel_iteri (f:int->'a->unit) arr cur_pool =
+  let arr_len = Array.length arr in
+  Task.parallel_for cur_pool ~start:0 ~finish:(arr_len - 1) ~body:(fun i->
+    f i arr.(i))
diff --git a/lib/array_iter.mli b/lib/array_iter.mli
new file mode 100644
index 0000000..6ef89fd
--- /dev/null
+++ b/lib/array_iter.mli
@@ -0,0 +1,9 @@
+
+val parallel_iter : ('a -> unit) -> 'a array -> Task.pool -> unit
+(** [parallel_iter f a pool] applies function [f] in turn to all the elements of [a]
+    It does Stdlib.Array.iter in parallel *)
+
+val parallel_iteri : (int -> 'a -> unit) -> 'a array -> Task.pool -> unit
+(** Same as {!parallel_iter}, but the function is applied to the index of the element as first 
+    argument, and the element itself as second argument
+    It performs Stdlib.Array.iteri in parallel *)
\ No newline at end of file