Add accurate arithmetic for summation, fix order of input particles

examples/profiling_utilities.jl

@@ -34,3 +34,26 @@ function test_random_walk(g::DAG, n::Int64)
 
     return reset_graph!(g)
 end
+
+function reduce_all!(g::DAG)
+    reset_graph!(g)
+
+    opt = get_operations(g)
+    while (!isempty(opt.nodeReductions))
+        push_operation!(g, pop!(opt.nodeReductions))
+
+        if (isempty(opt.nodeReductions))
+            opt = get_operations(g)
+        end
+    end
+    return nothing
+end
+
+function reduce_one!(g::DAG)
+    opt = get_operations(g)
+    if !isempty(opt.nodeReductions)
+        push_operation!(g, pop!(opt.nodeReductions))
+    end
+    opt = get_operations(g)
+    return nothing
+end