diff --git a/tensorflow/machine_translation.py b/tensorflow/machine_translation.py
index 6753a47..4b55389 100644
--- a/tensorflow/machine_translation.py
+++ b/tensorflow/machine_translation.py
@@ -519,7 +519,11 @@ def do_validataion():
         return total_loss / count
 
     config = tf.ConfigProto(
-        intra_op_parallelism_threads=1, inter_op_parallelism_threads=1)
+        intra_op_parallelism_threads=1,
+        inter_op_parallelism_threads=1,
+        log_device_placement=True)
+    config.gpu_options.allow_growth = True
+
     with tf.Session(config=config) as sess:
         init_g = tf.global_variables_initializer()
         init_l = tf.local_variables_initializer()
diff --git a/tensorflow/mnist.py b/tensorflow/mnist.py
index eda5885..9bf4d08 100644
--- a/tensorflow/mnist.py
+++ b/tensorflow/mnist.py
@@ -116,7 +116,11 @@ def eval_test():
         return g_acc[1]
 
     config = tf.ConfigProto(
-        intra_op_parallelism_threads=1, inter_op_parallelism_threads=1)
+        intra_op_parallelism_threads=1,
+        inter_op_parallelism_threads=1,
+        log_device_placement=True)
+    config.gpu_options.allow_growth = True
+
     with tf.Session(config=config) as sess:
         init_g = tf.global_variables_initializer()
         init_l = tf.local_variables_initializer()
diff --git a/tensorflow/resnet50.py b/tensorflow/resnet50.py
index 7f4263b..3b643a5 100644
--- a/tensorflow/resnet50.py
+++ b/tensorflow/resnet50.py
@@ -406,7 +406,13 @@ def test():
         print("Pass = %d, Train performance = %f imgs/s, Test accuracy = %f\n" %
               (pass_id, num_samples / train_elapsed, np.mean(test_accs)))
 
-    with tf.Session() as sess:
+    config = tf.ConfigProto(
+        intra_op_parallelism_threads=1,
+        inter_op_parallelism_threads=1,
+        log_device_placement=True)
+    config.gpu_options.allow_growth = True
+
+    with tf.Session(config=config) as sess:
         init_g = tf.global_variables_initializer()
         init_l = tf.local_variables_initializer()
         sess.run(init_g)
diff --git a/tensorflow/vgg16.py b/tensorflow/vgg16.py
index 37197c2..c545ba6 100644
--- a/tensorflow/vgg16.py
+++ b/tensorflow/vgg16.py
@@ -250,7 +250,13 @@ def test():
                 }))
         return np.mean(test_accs)
 
-    with tf.Session() as sess:
+    config = tf.ConfigProto(
+        intra_op_parallelism_threads=1,
+        inter_op_parallelism_threads=1,
+        log_device_placement=True)
+    config.gpu_options.allow_growth = True
+
+    with tf.Session(config=config) as sess:
         init_g = tf.global_variables_initializer()
         init_l = tf.local_variables_initializer()
         sess.run(init_g)