diff --git a/benches/network_benches.rs b/benches/network_benches.rs
index e27253d7..fe6909a0 100644
--- a/benches/network_benches.rs
+++ b/benches/network_benches.rs
@@ -69,7 +69,7 @@ mod cuda {
     #[bench]
     #[ignore]
     #[cfg(feature = "cuda")]
-    fn bench_mnsit_forward_1(b: &mut Bencher) {
+    fn bench_mnsit_forward_1(_b: &mut Bencher) {
         let mut cfg = SequentialConfig::default();
         // set up input
         cfg.add_input("in", &vec![1, 30, 30]);
@@ -96,7 +96,7 @@ mod cuda {
             backend.clone(), &LayerConfig::new("network", LayerType::Sequential(cfg)));
 
         let _ = timeit_loops!(10, {
-            let inp = SharedTensor::<f32>::new(backend.device(), &vec![1, 30, 30]).unwrap();
+            let inp = SharedTensor::<f32>::new(&[1, 30, 30]);
             let inp_lock = Arc::new(RwLock::new(inp));
 
             network.forward(&[inp_lock]);
@@ -260,7 +260,7 @@ mod cuda {
 
         let func = || {
             let forward_time = timeit_loops!(1, {
-                let inp = SharedTensor::<f32>::new(backend.device(), &vec![128, 3, 112, 112]).unwrap();
+                let inp = SharedTensor::new(&[128, 3, 112, 112]);
 
                 let inp_lock = Arc::new(RwLock::new(inp));
                 network.forward(&[inp_lock]);
@@ -416,7 +416,7 @@ mod cuda {
             backend.clone(), &LayerConfig::new("network", LayerType::Sequential(cfg)));
 
         let mut func = || {
-            let inp = SharedTensor::<f32>::new(backend.device(), &vec![128, 3, 112, 112]).unwrap();
+            let inp = SharedTensor::<f32>::new(&[128, 3, 112, 112]);
 
             let inp_lock = Arc::new(RwLock::new(inp));
             network.forward(&[inp_lock]);
diff --git a/examples/benchmarks.rs b/examples/benchmarks.rs
index 5075a63f..41e83b62 100644
--- a/examples/benchmarks.rs
+++ b/examples/benchmarks.rs
@@ -160,8 +160,7 @@ fn bench_alexnet() {
         let func = || {
             let forward_time = timeit_loops!(1, {
                 {
-                    let inp = SharedTensor::<f32>::new(backend.device(), &vec![128, 3, 224, 224]).unwrap();
-
+                    let inp = SharedTensor::<f32>::new(&[128, 3, 224, 224]);
                     let inp_lock = Arc::new(RwLock::new(inp));
                     network.forward(&[inp_lock.clone()]);
                 }
@@ -242,8 +241,7 @@ fn bench_overfeat() {
         let func = || {
             let forward_time = timeit_loops!(1, {
                 {
-                    let inp = SharedTensor::<f32>::new(backend.device(), &vec![128, 3, 231, 231]).unwrap();
-
+                    let inp = SharedTensor::new(&[128, 3, 231, 231]);
                     let inp_lock = Arc::new(RwLock::new(inp));
                     network.forward(&[inp_lock.clone()]);
                 }
@@ -339,7 +337,7 @@ fn bench_vgg_a() {
         let func = || {
             let forward_time = timeit_loops!(1, {
                 {
-                    let inp = SharedTensor::<f32>::new(backend.device(), &vec![64, 3, 224, 224]).unwrap();
+                    let inp = SharedTensor::new(&[64, 3, 224, 224]);
 
                     let inp_lock = Arc::new(RwLock::new(inp));
                     network.forward(&[inp_lock.clone()]);
diff --git a/tests/layer_specs.rs b/tests/layer_specs.rs
index d368a172..94b4bb5e 100644
--- a/tests/layer_specs.rs
+++ b/tests/layer_specs.rs
@@ -66,8 +66,10 @@ mod layer_spec {
             let loaded_weights = loaded_layer.learnable_weights_data();
             let loaded_weight_lock = loaded_weights[0].read().unwrap();
 
-            let original_weight = original_weight_lock.get(native_backend().device()).unwrap().as_native().unwrap().as_slice::<f32>();
-            let loaded_weight = loaded_weight_lock.get(native_backend().device()).unwrap().as_native().unwrap().as_slice::<f32>();
+            let original_weight = original_weight_lock.read(native_backend().device())
+                .unwrap().as_native().unwrap().as_slice::<f32>();
+            let loaded_weight = loaded_weight_lock.read(native_backend().device())
+                .unwrap().as_native().unwrap().as_slice::<f32>();
 
             assert_eq!(original_weight, loaded_weight);
         }
@@ -131,27 +133,28 @@ mod layer_spec {
             let mut reshape_network = Layer::from_config(cuda_backend.clone(), &LayerConfig::new("reshape_model", LayerType::Sequential(reshape_model)));
 
             let input = vec![1f32, 1f32, 2f32];
-            let mut normal_tensor = SharedTensor::<f32>::new(native_backend.device(), &(3)).unwrap();
+            let mut normal_tensor = SharedTensor::<f32>::new(&[3]);
             // let mut normal_tensor_output = SharedTensor::<f32>::new(native_backend.device(), &(3)).unwrap();
-            let mut reshape_tensor = SharedTensor::<f32>::new(native_backend.device(), &(3)).unwrap();
+            let mut reshape_tensor = SharedTensor::<f32>::new(&[3]);
             // let mut reshape_tensor_output = SharedTensor::<f32>::new(native_backend.device(), &(3)).unwrap();
-            write_to_memory(normal_tensor.get_mut(native_backend.device()).unwrap(), &input);
-            write_to_memory(reshape_tensor.get_mut(native_backend.device()).unwrap(), &input);
+            write_to_memory(normal_tensor.write_only(native_backend.device()).unwrap(), &input);
+            write_to_memory(reshape_tensor.write_only(native_backend.device()).unwrap(), &input);
 
             let normal_tensor_output = normal_network.forward(&[Arc::new(RwLock::new(normal_tensor))])[0].clone();
-            let _ = normal_tensor_output.write().unwrap().add_device(native_backend.device());
-            normal_tensor_output.write().unwrap().sync(native_backend.device()).unwrap();
             let normal_tensor_output_native_ = normal_tensor_output.read().unwrap();
-            let normal_tensor_output_native = normal_tensor_output_native_.get(native_backend.device()).unwrap().as_native().unwrap();
-            assert_eq!(&[0.7310585786f32, 0.7310586f32, 0.880797f32], normal_tensor_output_native.as_slice::<f32>());
+            let normal_tensor_output_native = normal_tensor_output_native_
+                .read(native_backend.device()).unwrap().as_native().unwrap();
+            assert_eq!(&[0.7310585786f32, 0.7310586f32, 0.880797f32],
+                       normal_tensor_output_native.as_slice::<f32>());
 
             let reshape_tensor_output = reshape_network.forward(&[Arc::new(RwLock::new(reshape_tensor))])[0].clone();
-            let _ = reshape_tensor_output.write().unwrap().add_device(native_backend.device());
-            reshape_tensor_output.write().unwrap().sync(native_backend.device()).unwrap();
             let reshape_tensor_output_native_ = reshape_tensor_output.read().unwrap();
-            let reshape_tensor_output_native = reshape_tensor_output_native_.get(native_backend.device()).unwrap().as_native().unwrap();
-            assert_eq!(&[0.7310585786f32, 0.7310586f32, 0.880797f32], reshape_tensor_output_native.as_slice::<f32>());
-            assert_eq!(normal_tensor_output_native.as_slice::<f32>(), reshape_tensor_output_native.as_slice::<f32>());
+            let reshape_tensor_output_native = reshape_tensor_output_native_
+                .read(native_backend.device()).unwrap().as_native().unwrap();
+            assert_eq!(&[0.7310585786f32, 0.7310586f32, 0.880797f32],
+                       reshape_tensor_output_native.as_slice::<f32>());
+            assert_eq!(normal_tensor_output_native.as_slice::<f32>(),
+                       reshape_tensor_output_native.as_slice::<f32>());
         }
     }