diff --git a/example/resnet50_imagenet2012_THOR/model/thor.py b/example/resnet50_imagenet2012_THOR/model/thor.py
index 0da1714fe6..6786cb7485 100644
--- a/example/resnet50_imagenet2012_THOR/model/thor.py
+++ b/example/resnet50_imagenet2012_THOR/model/thor.py
@@ -151,6 +151,8 @@ class THOR(Optimizer):
                 temp_g = self.mul(temp_g, matrix_G_inv_max)
                 temp_max = self.mul(matrix_A_max_allreduce[i], matrix_G_max_allreduce[i])
                 temp_max = self.mul(temp_max, self.feature_map[i])
+                temp_a = self.cast(temp_a, mstype.float16)
+                temp_g = self.cast(temp_g, mstype.float16)
                 if i == 53:
                     g = self.cube_matmul_left_fc(temp_g, g)
                     g = self.cube_matmul_right_fc(g, temp_a, temp_max)
diff --git a/example/resnet50_imagenet2012_THOR/model/thor_layer.py b/example/resnet50_imagenet2012_THOR/model/thor_layer.py
index fea74605b6..995c7b01d0 100644
--- a/example/resnet50_imagenet2012_THOR/model/thor_layer.py
+++ b/example/resnet50_imagenet2012_THOR/model/thor_layer.py
@@ -171,7 +171,6 @@ class Conv2d_Thor(_Conv):
         self.G_inv_max = Parameter(initializer(0, [1], mstype.float32), name="G_inv_max", requires_grad=False)
         self.fake_G = Tensor(
             np.reshape(np.identity(self.matrix_G_device_dim).astype(np.float16), self.matrix_G_device_shape))
-        self.fake_G_inv_max = Tensor(np.zeros([1,]).astype(np.float32))
 
         self.shape = P.Shape()
         self.reshape = P.Reshape()
@@ -286,7 +285,6 @@ class Conv2d_Thor(_Conv):
                 matrix_A_inv = self.device_shape_pad(matrix_A_inv)
             matrix_A_inv = self.reshape(matrix_A_inv, self.matrix_A_device_temp_shape)
             matrix_A_inv = self.transpose(matrix_A_inv, (2, 0, 1, 3))
-            self.G_inv_max = self.fake_G_inv_max
             self.matrix_A_inv = matrix_A_inv
             self.matrix_G_inv = self.fake_G
             out = self.conv2d(x, self.weight)