diff --git a/configs/topologies/MeshDirCorners_XY.py b/configs/topologies/MeshDirCorners_XY.py
index 7d065de5b9..e0aea5212c 100644
--- a/configs/topologies/MeshDirCorners_XY.py
+++ b/configs/topologies/MeshDirCorners_XY.py
@@ -218,6 +218,6 @@ class MeshDirCorners_XY(SimpleTopology):
         for n in numa_nodes:
             if n:
                 FileSystemConfig.register_node(n,
-                    MemorySize(options.mem_size) / num_numa_nodes, i)
+                    MemorySize(options.mem_size) // num_numa_nodes, i)
             i += 1
 
diff --git a/configs/topologies/Mesh_XY.py b/configs/topologies/Mesh_XY.py
index 64a8506160..faec1e3c3b 100644
--- a/configs/topologies/Mesh_XY.py
+++ b/configs/topologies/Mesh_XY.py
@@ -178,4 +178,4 @@ class Mesh_XY(SimpleTopology):
     def registerTopology(self, options):
         for i in range(options.num_cpus):
             FileSystemConfig.register_node([i],
-                    MemorySize(options.mem_size) / options.num_cpus, i)
+                    MemorySize(options.mem_size) // options.num_cpus, i)