making zip opbject iterable in resource.py

cnn_mapping/resource.py

@@ -81,8 +81,8 @@ class Resource(object):
         assert len(buf_capacity_list) == len(buf_unit_static_cost_list)
         assert len(buf_capacity_list) == len(para_count_list)
         
-        self.bufs = [Buffer(*t) for t in zip(buf_capacity_list, \
-            buf_access_cost_list, buf_unit_static_cost_list)]
+        self.bufs = [Buffer(*t) for t in list(zip(buf_capacity_list, \
+            buf_access_cost_list, buf_unit_static_cost_list))]
 
         self.num_levels = len(self.bufs)
 
@@ -112,8 +112,8 @@ class Resource(object):
         # LMEI always assume square-shape array, could change later
         array_width = [para_count_list[i] if array_dim[i] == 1 else int(math.sqrt(para_count_list[i])) for i in range(self.num_levels)]
  
-        self.paras = [Parallelism(*t) for t in zip(para_count_list, \
-            partition_mode, array_access_costs, array_dim, array_width)]
+        self.paras = [Parallelism(*t) for t in list(zip(para_count_list, \
+            partition_mode, array_access_costs, array_dim, array_width))]
         self.access_cost = buf_access_cost_list
         # If list does not contain 3 separate access costs for (inputs, weights, psum)
         # assume they all have the same cost