Add reduction benchmarks

src/models/abc/compute.jl

@@ -84,9 +84,17 @@ Compute a sum over the vector. Use an algorithm that accounts for accumulated er
 Linearly many FLOP with growing data.
 """
 function compute(::ComputeTaskABC_Sum, data...)::Float64
-    return sum(data)
+    s = 0.0im
+    for d in data
+        s += d
+    end
+    return s
 end
 
 function compute(::ComputeTaskABC_Sum, data::AbstractArray)::Float64
-    return sum(data)
+    s = 0.0im
+    for d in data
+        s += d
+    end
+    return s
 end