diff --git a/cmake/external/ascend.cmake b/cmake/external/ascend.cmake
index bddd2023b437b..13676ec910b05 100644
--- a/cmake/external/ascend.cmake
+++ b/cmake/external/ascend.cmake
@@ -21,6 +21,11 @@ else()
     set(ASCEND_DIR /usr/local/Ascend)
 endif()
 
+if(EXISTS ${ASCEND_DIR}/ascend-toolkit/latest/fwkacllib/include/graph/ascend_string.h)
+  # It means CANN 20.2 +
+  add_definitions(-DPADDLE_WITH_ASCEND_STRING)
+endif()
+
 if(WITH_ASCEND)
   set(ASCEND_DRIVER_DIR ${ASCEND_DIR}/driver/lib64)
   set(ASCEND_DRIVER_COMMON_DIR ${ASCEND_DIR}/driver/lib64/common)
@@ -43,9 +48,7 @@ if(WITH_ASCEND)
   set(atlas_acl_lib ${ATLAS_RUNTIME_DIR}/libascendcl.so)
   INCLUDE_DIRECTORIES(${ATLAS_RUNTIME_INC_DIR})
 
-  if(EXISTS ${ATLAS_RUNTIME_INC_DIR}/graph/ascend_string.h)
-    add_definitions(-DPADDLE_WITH_ASCEND_STRING)
-  endif()
+
 
   ADD_LIBRARY(ascend_ge SHARED IMPORTED GLOBAL)
   SET_PROPERTY(TARGET ascend_ge PROPERTY IMPORTED_LOCATION ${atlas_ge_runner_lib})
@@ -64,11 +67,13 @@ if(WITH_ASCEND_CL)
 
   set(ascendcl_lib ${ASCEND_CL_DIR}/libascendcl.so)
   set(acl_op_compiler_lib ${ASCEND_CL_DIR}/libacl_op_compiler.so)
-  set(ASCEND_CL_INC_DIR ${ASCEND_DIR}/ascend-toolkit/latest/fwkacllib/include)
+  set(FWKACLLIB_INC_DIR ${ASCEND_DIR}/ascend-toolkit/latest/fwkacllib/include)
+  set(ACLLIB_INC_DIR ${ASCEND_DIR}/ascend-toolkit/latest/acllib/include)
 
-  message(STATUS "ASCEND_CL_INC_DIR ${ASCEND_CL_INC_DIR}")
+  message(STATUS "FWKACLLIB_INC_DIR ${FWKACLLIB_INC_DIR}")
   message(STATUS "ASCEND_CL_DIR ${ASCEND_CL_DIR}")
-  INCLUDE_DIRECTORIES(${ASCEND_CL_INC_DIR})
+  INCLUDE_DIRECTORIES(${FWKACLLIB_INC_DIR})
+  INCLUDE_DIRECTORIES(${ACLLIB_INC_DIR})
 
   ADD_LIBRARY(ascendcl SHARED IMPORTED GLOBAL)
   SET_PROPERTY(TARGET ascendcl PROPERTY IMPORTED_LOCATION ${ascendcl_lib})
diff --git a/paddle/fluid/framework/executor.cc b/paddle/fluid/framework/executor.cc
index 101991d2c1ba0..e5bfbf4a8f779 100644
--- a/paddle/fluid/framework/executor.cc
+++ b/paddle/fluid/framework/executor.cc
@@ -456,11 +456,22 @@ void Executor::RunPartialPreparedContext(ExecutorPrepareContext* ctx,
 #endif
     } else if (platform::is_npu_place(place_)) {
 #ifdef PADDLE_WITH_ASCEND_CL
-      // TODO(ascendrc): Support garbage collector on NPUPlace
-      VLOG(4) << "Skip NPU gc because it is not implemented now.";
+      if (IsFastEagerDeletionModeEnabled()) {
+        VLOG(4) << "Use unsafe fast gc for NPU.";
+        gc.reset(new NPUUnsafeFastGarbageCollector(
+            BOOST_GET_CONST(platform::NPUPlace, place_), max_memory_size));
+      } else {
+        PADDLE_THROW(platform::errors::Unimplemented(
+            "Please set FLAGS_fast_eager_deletion_mode=true to use "
+            "GarbageCollector on NPU."));
+        // TODO(zhiqiu): fix bugs and enable NPUDefaultStreamGarbageCollector.
+        VLOG(4) << "Use default stream gc for NPU.";
+        gc.reset(new NPUDefaultStreamGarbageCollector(
+            BOOST_GET_CONST(platform::NPUPlace, place_), max_memory_size));
+      }
 #else
-      PADDLE_THROW(platform::errors::Unimplemented(
-          "No NPU gc found in CPU/GPU/XPU paddle"));
+      PADDLE_THROW(
+          platform::errors::Unimplemented("No NPU gc found in CPU/NPU paddle"));
 #endif
     }
   }
diff --git a/paddle/fluid/framework/garbage_collector.cc b/paddle/fluid/framework/garbage_collector.cc
index 8dfbd3c268b86..9ab6b5d8c178b 100644
--- a/paddle/fluid/framework/garbage_collector.cc
+++ b/paddle/fluid/framework/garbage_collector.cc
@@ -122,6 +122,32 @@ void CUDAPinnedGarbageCollector::ClearCallback(
 }
 #endif
 
+#ifdef PADDLE_WITH_ASCEND_CL
+NPUDefaultStreamGarbageCollector::NPUDefaultStreamGarbageCollector(
+    const platform::NPUPlace &place, size_t max_memory_size)
+    : GarbageCollector(place, max_memory_size) {}
+
+void NPUDefaultStreamGarbageCollector::Wait() const {
+  static_cast<platform::NPUDeviceContext *>(this->dev_ctx_)
+      ->WaitStreamCallback();
+}
+
+void NPUDefaultStreamGarbageCollector::ClearCallback(
+    const std::function<void()> &callback) {
+  static_cast<platform::NPUDeviceContext *>(this->dev_ctx_)
+      ->AddStreamCallback(callback);
+}
+NPUUnsafeFastGarbageCollector::NPUUnsafeFastGarbageCollector(
+    const platform::NPUPlace &place, size_t max_memory_size)
+    : GarbageCollector(place, max_memory_size) {}
+
+void NPUUnsafeFastGarbageCollector::ClearCallback(
+    const std::function<void()> &callback) {
+  callback();
+}
+
+#endif
+
 int64_t GetEagerDeletionThreshold() {
   return FLAGS_eager_delete_tensor_gb < 0
              ? -1
diff --git a/paddle/fluid/framework/garbage_collector.h b/paddle/fluid/framework/garbage_collector.h
index 572c79d21a045..2c2b57bbe420a 100644
--- a/paddle/fluid/framework/garbage_collector.h
+++ b/paddle/fluid/framework/garbage_collector.h
@@ -131,6 +131,28 @@ class CUDAPinnedGarbageCollector : public GarbageCollector {
 };
 #endif
 
+#ifdef PADDLE_WITH_ASCEND_CL
+class NPUDefaultStreamGarbageCollector : public GarbageCollector {
+ public:
+  NPUDefaultStreamGarbageCollector(const platform::NPUPlace &place,
+                                   size_t max_memory_size);
+
+  void Wait() const override;
+
+ protected:
+  void ClearCallback(const std::function<void()> &callback) override;
+};
+
+class NPUUnsafeFastGarbageCollector : public GarbageCollector {
+ public:
+  NPUUnsafeFastGarbageCollector(const platform::NPUPlace &place,
+                                size_t max_memory_size);
+
+ protected:
+  void ClearCallback(const std::function<void()> &callback) override;
+};
+#endif
+
 template <typename Container>
 void GarbageCollector::Add(Container &&objs) {
   Add(std::forward<Container>(objs), []() {});
diff --git a/paddle/fluid/framework/op_registry.h b/paddle/fluid/framework/op_registry.h
index 4c52932976122..818da7478b239 100644
--- a/paddle/fluid/framework/op_registry.h
+++ b/paddle/fluid/framework/op_registry.h
@@ -343,6 +343,12 @@ struct OpKernelRegistrarFunctorEx<PlaceType, false, I,
       ::paddle::framework::OpKernelType::kDefaultCustomizedTypeValue, \
       __VA_ARGS__)
 
+#define REGISTER_OP_NPU_KERNEL_FUNCTOR(op_type, ...)                  \
+  REGISTER_OP_KERNEL_EX(                                              \
+      op_type, NPU, ::paddle::platform::NPUPlace, DEFAULT_TYPE,       \
+      ::paddle::framework::OpKernelType::kDefaultCustomizedTypeValue, \
+      __VA_ARGS__)
+
 /**
  * Macro to mark what Operator and Kernel
  * we will use and tell the compiler to
diff --git a/paddle/fluid/framework/tensor_util.cc b/paddle/fluid/framework/tensor_util.cc
index d6882b25d2258..78fd1af09e294 100644
--- a/paddle/fluid/framework/tensor_util.cc
+++ b/paddle/fluid/framework/tensor_util.cc
@@ -822,6 +822,29 @@ void TensorToStream(std::ostream& os, const Tensor& tensor,
 #else
       PADDLE_THROW(platform::errors::Unimplemented(
           "XPUPlace is not supported when not compiled with XPU"));
+#endif
+    } else if (platform::is_npu_place(tensor.place())) {
+#ifdef PADDLE_WITH_ASCEND_CL
+      constexpr size_t kBufSize = 1024 * 1024 * 64;  // 64MB
+      std::unique_ptr<char[]> buf(new char[kBufSize]);
+      auto& npu_dev_ctx =
+          static_cast<const platform::NPUDeviceContext&>(dev_ctx);
+      platform::CPUPlace cpu;
+      uintptr_t data = reinterpret_cast<uintptr_t>(data_ptr);
+      while (size != 0) {
+        size_t size_to_write = std::min(kBufSize, static_cast<size_t>(size));
+        memory::Copy(cpu, buf.get(),
+                     BOOST_GET_CONST(platform::NPUPlace, tensor.place()),
+                     reinterpret_cast<const void*>(data), size_to_write,
+                     npu_dev_ctx.stream());
+        npu_dev_ctx.Wait();
+        os.write(buf.get(), size_to_write);
+        data += size_to_write;
+        size -= size_to_write;
+      }
+#else
+      PADDLE_THROW(platform::errors::Unimplemented(
+          "NPUPlace is not supported when not compiled with NPU"));
 #endif
     } else {
       os.write(static_cast<const char*>(data_ptr),
@@ -877,9 +900,10 @@ void TensorFromStream(std::istream& is, Tensor* tensor,
     auto ctx = platform::CPUDeviceContext();
     size_t size = tensor->numel() * framework::SizeOfType(desc.data_type());
     if (platform::is_gpu_place(dev_ctx.GetPlace()) ||
-        platform::is_xpu_place(dev_ctx.GetPlace())) {
+        platform::is_xpu_place(dev_ctx.GetPlace()) ||
+        platform::is_npu_place(dev_ctx.GetPlace())) {
 #if defined(PADDLE_WITH_CUDA) || defined(PADDLE_WITH_HIP) || \
-    defined(PADDLE_WITH_XPU)
+    defined(PADDLE_WITH_XPU) || defined(PADDLE_WITH_ASCEND_CL)
       Tensor cpu_tensor;
       cpu_tensor.Resize(framework::make_ddim(shape));
       framework::VisitDataType(
@@ -888,13 +912,19 @@ void TensorFromStream(std::istream& is, Tensor* tensor,
       is.read(static_cast<char*>(buf), size);
       auto dst_place = dev_ctx.GetPlace();
       framework::TensorCopy(cpu_tensor, dst_place, dev_ctx, tensor);
+      if (platform::is_npu_place(dev_ctx.GetPlace())) {
+        dev_ctx.Wait();
+      }
 #else
       if (platform::is_gpu_place(dev_ctx.GetPlace())) {
         PADDLE_THROW(platform::errors::Unimplemented(
             "CUDAPlace is not supported when not compiled with CUDA"));
-      } else {
+      } else if (platform::is_xpu_place(dev_ctx.GetPlace())) {
         PADDLE_THROW(platform::errors::Unimplemented(
             "XPUPlace is not supported when not compiled with XPU"));
+      } else {
+        PADDLE_THROW(platform::errors::Unimplemented(
+            "NPUPlace is not supported when not compiled with NPU"));
       }
 #endif
     } else {
@@ -935,9 +965,10 @@ void TensorFromStream(std::istream& is, Tensor* tensor,
     auto ctx = platform::CPUDeviceContext();
     size_t size = tensor->numel() * framework::SizeOfType(desc.data_type());
     if (platform::is_gpu_place(dev_ctx.GetPlace()) ||
-        platform::is_xpu_place(dev_ctx.GetPlace())) {
+        platform::is_xpu_place(dev_ctx.GetPlace()) ||
+        platform::is_npu_place(dev_ctx.GetPlace())) {
 #if defined(PADDLE_WITH_CUDA) || defined(PADDLE_WITH_HIP) || \
-    defined(PADDLE_WITH_XPU)
+    defined(PADDLE_WITH_XPU) || defined(PADDLE_WITH_ASCEND_CL)
       Tensor cpu_tensor;
       cpu_tensor.Resize(framework::make_ddim(dims));
       framework::VisitDataType(
@@ -946,13 +977,19 @@ void TensorFromStream(std::istream& is, Tensor* tensor,
       is.read(static_cast<char*>(buf), size);
       auto dst_place = dev_ctx.GetPlace();
       framework::TensorCopy(cpu_tensor, dst_place, dev_ctx, tensor);
+      if (platform::is_npu_place(dev_ctx.GetPlace())) {
+        dev_ctx.Wait();
+      }
 #else
       if (platform::is_gpu_place(dev_ctx.GetPlace())) {
         PADDLE_THROW(platform::errors::Unimplemented(
             "CUDAPlace is not supported when not compiled with CUDA"));
-      } else {
+      } else if (platform::is_xpu_place(dev_ctx.GetPlace())) {
         PADDLE_THROW(platform::errors::Unimplemented(
             "XPUPlace is not supported when not compiled with XPU"));
+      } else {
+        PADDLE_THROW(platform::errors::Unimplemented(
+            "NPUPlace is not supported when not compiled with NPU"));
       }
 #endif
     } else {
diff --git a/paddle/fluid/framework/tensor_util.h b/paddle/fluid/framework/tensor_util.h
index 85af9e5008702..22c8e1c1665f1 100644
--- a/paddle/fluid/framework/tensor_util.h
+++ b/paddle/fluid/framework/tensor_util.h
@@ -159,11 +159,15 @@ void TensorFromVector(const std::vector<T>& src,
   }
 #endif
 #ifdef PADDLE_WITH_ASCEND_CL
+  // NOTE(zhiqiu): Becareful that aclrtMemcpyAsync is different from
+  // cudaMemcpyAsync.
+  // cudaMemcpyAsync is actually "sync" between cpu <-> gpu.
+  // aclrtMemcpyAsync is really "async" between cpu <-> npu.
+  // Since vector is on cpu, I think this function should be a "sync" operation,
+  // so pass nullptr as stream to  memory::Copy().
   else if (platform::is_npu_place(dst_place)) {  // NOLINT
-    memory::Copy(
-        BOOST_GET_CONST(platform::NPUPlace, dst_place), dst_ptr, src_place,
-        src_ptr, size,
-        reinterpret_cast<const platform::NPUDeviceContext&>(ctx).stream());
+    memory::Copy(BOOST_GET_CONST(platform::NPUPlace, dst_place), dst_ptr,
+                 src_place, src_ptr, size, nullptr);
   }
 #endif
 }
@@ -202,10 +206,8 @@ inline void TensorFromVector(const std::vector<bool>& src,
 #endif
 #ifdef PADDLE_WITH_ASCEND_CL
   else if (platform::is_npu_place(dst_place)) {  // NOLINT
-    memory::Copy(
-        BOOST_GET_CONST(platform::NPUPlace, dst_place), dst_ptr, src_place,
-        src_ptr, size,
-        reinterpret_cast<const platform::NPUDeviceContext&>(ctx).stream());
+    memory::Copy(BOOST_GET_CONST(platform::NPUPlace, dst_place), dst_ptr,
+                 src_place, src_ptr, size, nullptr);
   }
 #endif
   delete[] array;
@@ -265,10 +267,9 @@ void TensorToVector(const Tensor& src, const platform::DeviceContext& ctx,
 #endif
 #ifdef PADDLE_WITH_ASCEND_CL
   else if (platform::is_npu_place(src.place())) {  // NOLINT
-    memory::Copy(
-        dst_place, dst_ptr, BOOST_GET_CONST(platform::NPUPlace, src.place()),
-        src_ptr, size,
-        reinterpret_cast<const platform::NPUDeviceContext&>(ctx).stream());
+    memory::Copy(dst_place, dst_ptr,
+                 BOOST_GET_CONST(platform::NPUPlace, src.place()), src_ptr,
+                 size, nullptr);
   }
 #endif
 }
@@ -301,10 +302,9 @@ inline void TensorToVector(const Tensor& src,
 #endif
 #ifdef PADDLE_WITH_ASCEND_CL
   else if (platform::is_npu_place(src.place())) {  // NOLINT
-    memory::Copy(
-        dst_place, dst_ptr, BOOST_GET_CONST(platform::NPUPlace, src.place()),
-        src_ptr, size,
-        reinterpret_cast<const platform::NPUDeviceContext&>(ctx).stream());
+    memory::Copy(dst_place, dst_ptr,
+                 BOOST_GET_CONST(platform::NPUPlace, src.place()), src_ptr,
+                 size, nullptr);
   }
 #endif
   for (unsigned int i = 0; i < src.numel(); i++) {
diff --git a/paddle/fluid/memory/memcpy.cc b/paddle/fluid/memory/memcpy.cc
index 1eb0535831bb1..730d49e8acd93 100644
--- a/paddle/fluid/memory/memcpy.cc
+++ b/paddle/fluid/memory/memcpy.cc
@@ -207,12 +207,6 @@ void Copy<platform::NPUPlace, platform::CPUPlace>(platform::NPUPlace dst_place,
 
   platform::SetNPUDeviceId(dst_place.device);
 
-  // NOTE(ascendrc): NPU memcpy async from host to device is a "real" async,
-  // which is different from CUDA. In Paddle, when async is called, "sync"
-  // is run actually, which means Paddle doesn't fully supported async.
-  // TODO(ascendrc): Support NPU memcpy async for better performance.
-  stream = nullptr;
-
   VLOG(4) << "memory::Copy " << num << " Bytes from " << src_place << " to "
           << dst_place << " by thream(" << stream << ")";
 
@@ -220,6 +214,12 @@ void Copy<platform::NPUPlace, platform::CPUPlace>(platform::NPUPlace dst_place,
     platform::RecordEvent record_event("NpuMemcpyAsync:CPU->NPU");
     platform::NPUMemcpyAsync(dst, src, num, ACL_MEMCPY_HOST_TO_DEVICE, stream);
   } else {
+    // On NPU, async operation after sync operation is ok, while sync operation
+    // after async is not ok, since the async operation may not done.
+    // So, its needed to do wait before sync operation.
+    platform::DeviceContextPool& pool = platform::DeviceContextPool::Instance();
+    static_cast<platform::NPUDeviceContext*>(pool.Get(dst_place))->Wait();
+
     platform::RecordEvent record_event("NpuMemcpySync:CPU->NPU");
     platform::NPUMemcpySync(dst, src, num, ACL_MEMCPY_HOST_TO_DEVICE);
   }
@@ -235,12 +235,6 @@ void Copy<platform::CPUPlace, platform::NPUPlace>(platform::CPUPlace dst_place,
 
   platform::SetNPUDeviceId(src_place.device);
 
-  // NOTE(ascendrc): NPU memcpy async from device to host is a "real" async,
-  // which is different from CUDA. In Paddle, when async is called, "sync"
-  // is run actually, which means Paddle doesn't fully supported async.
-  // TODO(ascendrc): Support NPU memcpy async for better performance.
-  stream = nullptr;
-
   VLOG(4) << "memory::Copy " << num << " Bytes from " << src_place << " to "
           << dst_place << " by thream(" << stream << ")";
 
@@ -248,6 +242,9 @@ void Copy<platform::CPUPlace, platform::NPUPlace>(platform::CPUPlace dst_place,
     platform::RecordEvent record_event("NpuMemcpyAsync:NPU->CPU");
     platform::NPUMemcpyAsync(dst, src, num, ACL_MEMCPY_DEVICE_TO_HOST, stream);
   } else {
+    platform::DeviceContextPool& pool = platform::DeviceContextPool::Instance();
+    static_cast<platform::NPUDeviceContext*>(pool.Get(src_place))->Wait();
+
     platform::RecordEvent record_event("GpuMemcpySync:NPU->CPU");
     platform::NPUMemcpySync(dst, src, num, ACL_MEMCPY_DEVICE_TO_HOST);
   }
@@ -270,6 +267,10 @@ void Copy<platform::NPUPlace, platform::NPUPlace>(platform::NPUPlace dst_place,
       platform::NPUMemcpyAsync(dst, src, num, ACL_MEMCPY_DEVICE_TO_DEVICE,
                                stream);
     } else {
+      platform::DeviceContextPool& pool =
+          platform::DeviceContextPool::Instance();
+      static_cast<platform::NPUDeviceContext*>(pool.Get(dst_place))->Wait();
+
       platform::RecordEvent record_event("NpuMemcpySync(same_npu):NPU->NPU");
       platform::NPUMemcpySync(dst, src, num, ACL_MEMCPY_DEVICE_TO_DEVICE);
     }
@@ -284,6 +285,10 @@ void Copy<platform::NPUPlace, platform::NPUPlace>(platform::NPUPlace dst_place,
       platform::NPUMemcpyAsync(dst, src, num, ACL_MEMCPY_DEVICE_TO_DEVICE,
                                stream);
     } else {
+      platform::DeviceContextPool& pool =
+          platform::DeviceContextPool::Instance();
+      static_cast<platform::NPUDeviceContext*>(pool.Get(dst_place))->Wait();
+
       platform::RecordEvent record_event("NpuMemcpyPeerSync:NPU->NPU");
       platform::NPUMemcpySync(dst, src, num, ACL_MEMCPY_DEVICE_TO_DEVICE);
     }
diff --git a/paddle/fluid/operators/CMakeLists.txt b/paddle/fluid/operators/CMakeLists.txt
index cecc70cc6dda8..3aa47c9e092f7 100644
--- a/paddle/fluid/operators/CMakeLists.txt
+++ b/paddle/fluid/operators/CMakeLists.txt
@@ -167,7 +167,7 @@ endif()
 
 if (WITH_ASCEND_CL)
   cc_test(range_op_npu_test SRCS range_op_npu_test.cc DEPS op_registry range_op scope device_context enforce executor)
-  cc_test(lookup_table_v2_op_npu_test SRCS lookup_table_v2_op_npu_test.cc DEPS op_registry lookup_table_v2_op scope device_context enforce executor compare_op)
+  cc_test(expand_op_npu_test SRCS expand_op_npu_test.cc DEPS op_registry expand_op scope device_context enforce executor compare_op)
 endif()
 
 set(GLOB_OP_LIB ${OP_LIBRARY} CACHE INTERNAL "Global OP library")
diff --git a/paddle/fluid/operators/activation_op_npu.cc b/paddle/fluid/operators/activation_op_npu.cc
index 923b581af287d..f368c65823055 100644
--- a/paddle/fluid/operators/activation_op_npu.cc
+++ b/paddle/fluid/operators/activation_op_npu.cc
@@ -77,8 +77,7 @@ class PowGradNPUKernel : public framework::OpKernel<T> {
     // 2.1 Get a factor tensor with shape [1].
     Tensor factor_tensor(framework::proto::VarType::FP32);
     factor_tensor.mutable_data<float>({1}, place);
-    TensorFromVector(std::vector<float>{factor}, ctx.device_context(),
-                     &factor_tensor);
+    FillNpuTensorWithConstant<float>(&factor_tensor, factor);
 
     // 2.2 Get the factor which has the shape with x and the same value with
     // factor.
diff --git a/paddle/fluid/operators/amp/check_finite_and_unscale_op_npu.cc b/paddle/fluid/operators/amp/check_finite_and_unscale_op_npu.cc
index 46f9f7ff08944..21968dcb05dd1 100644
--- a/paddle/fluid/operators/amp/check_finite_and_unscale_op_npu.cc
+++ b/paddle/fluid/operators/amp/check_finite_and_unscale_op_npu.cc
@@ -44,10 +44,7 @@ class CheckFiniteAndUnscaleNPUKernel : public framework::OpKernel<T> {
     // step1: inverse scale(RealDiv)
     Tensor const_tensor;
     const_tensor.mutable_data<T>({1}, ctx.GetPlace());
-    TensorFromVector(std::vector<T>{static_cast<T>(1.0)}, ctx.device_context(),
-                     &const_tensor);
-
-    ctx.template device_context<paddle::platform::NPUDeviceContext>().Wait();
+    FillNpuTensorWithConstant<T>(&const_tensor, static_cast<T>(1.0));
 
     // Inverse(1.0/scale)
     Tensor* tmp_inverse_out = const_cast<Tensor*>(scale);
@@ -61,7 +58,6 @@ class CheckFiniteAndUnscaleNPUKernel : public framework::OpKernel<T> {
 
     size_t x_size = xs.size();
     for (size_t i = 0; i < x_size; ++i) {
-      found_inf_data = true;
       const auto* x = xs[i];
       auto* out = outs[i];
       out->mutable_data<T>(ctx.GetPlace());
@@ -77,6 +73,8 @@ class CheckFiniteAndUnscaleNPUKernel : public framework::OpKernel<T> {
             NpuOpRunner("CheckNumerics", {*x}, {check_xout},
                         {{"message", std::string("check_nan_and_inf")}});
         runner_checknumerics.Run(stream);
+        ctx.template device_context<paddle::platform::NPUDeviceContext>()
+            .Wait();
       } catch (platform::EnforceNotMet& exception) {
         LOG(WARNING) << "[check_nan_and_inf] detected contains NaN or INF!!!";
         found_inf_data = true;
@@ -104,7 +102,11 @@ class CheckFiniteAndUnscaleNPUKernel : public framework::OpKernel<T> {
       bool* is_found_inf =
           found_inf_tensor.mutable_data<bool>(paddle::platform::CPUPlace());
       *is_found_inf = true;
-      framework::TensorCopySync(found_inf_tensor, ctx.GetPlace(), found_inf);
+
+      framework::TensorCopy(
+          found_inf_tensor, ctx.GetPlace(),
+          ctx.template device_context<platform::DeviceContext>(), found_inf);
+      ctx.template device_context<paddle::platform::NPUDeviceContext>().Wait();
     }
   }
 };
diff --git a/paddle/fluid/operators/amp/check_finite_and_unscale_op_npu_test.cc b/paddle/fluid/operators/amp/check_finite_and_unscale_op_npu_test.cc
index 99e81a4757d0e..a80b83f0cbe51 100644
--- a/paddle/fluid/operators/amp/check_finite_and_unscale_op_npu_test.cc
+++ b/paddle/fluid/operators/amp/check_finite_and_unscale_op_npu_test.cc
@@ -110,22 +110,22 @@ void Compare(f::Scope *scope, const p::DeviceContext &ctx) {
   // out found_inf
   Tensor found_inf_tensor;
   found_inf_tensor.Resize({1});
-  bool *is_finite_data =
+  bool *found_inf_data =
       found_inf_tensor.mutable_data<bool>(paddle::platform::CPUPlace());
   f::TensorCopy(*found_inf, place, &found_inf_tensor);
-  EXPECT_FALSE(*is_finite_data);
+  EXPECT_TRUE(*found_inf_data);
 
   ctx.Wait();
 }
 
 TEST(check_finite_and_unscale, NPU_fp32) {
   f::Scope scope;
-  p::NPUDeviceContext ctx(p::NPUPlace(0));
-  Compare<float>(&scope, ctx);
+  auto *ctx = p::DeviceContextPool::Instance().Get(p::NPUPlace(0));
+  Compare<float>(&scope, *ctx);
 }
 
 TEST(check_finite_and_unscale, NPU_fp16) {
   f::Scope scope;
-  p::NPUDeviceContext ctx(p::NPUPlace(0));
-  Compare<p::float16>(&scope, ctx);
+  auto *ctx = p::DeviceContextPool::Instance().Get(p::NPUPlace(0));
+  Compare<p::float16>(&scope, *ctx);
 }
diff --git a/paddle/fluid/operators/amp/update_loss_scaling_op_npu.cc b/paddle/fluid/operators/amp/update_loss_scaling_op_npu.cc
index dd6dbfd5c0b65..45b28bf61e5d6 100644
--- a/paddle/fluid/operators/amp/update_loss_scaling_op_npu.cc
+++ b/paddle/fluid/operators/amp/update_loss_scaling_op_npu.cc
@@ -41,7 +41,7 @@ void Update(const platform::NPUDeviceContext& ctx,
     // bad_out_data = bad_in_data + 1
     Tensor factor_tensor(bad_out_tensor->type());
     factor_tensor.mutable_data<int>({1}, place);
-    TensorFromVector(std::vector<int>{1}, ctx, &factor_tensor);
+    FillNpuTensorWithConstant<int>(&factor_tensor, static_cast<int>(1));
     auto runner_p2 = NpuOpRunner("Add", {*bad_in_tensor, factor_tensor},
                                  {*bad_out_tensor}, {});
     runner_p2.Run(stream);
@@ -84,7 +84,7 @@ void Update(const platform::NPUDeviceContext& ctx,
     // good_out_data = good_in_data + 1
     Tensor factor_tensor(good_out_tensor->type());
     factor_tensor.mutable_data<int>({1}, place);
-    TensorFromVector(std::vector<int>{1}, ctx, &factor_tensor);
+    FillNpuTensorWithConstant<int>(&factor_tensor, static_cast<int>(1));
     auto runner_p2 = NpuOpRunner("Add", {*good_in_tensor, factor_tensor},
                                  {*good_out_tensor}, {});
     runner_p2.Run(stream);
diff --git a/paddle/fluid/operators/assign_op_npu_test.cc b/paddle/fluid/operators/assign_op_npu_test.cc
index 5cf1303a229a9..792d01a5efe43 100644
--- a/paddle/fluid/operators/assign_op_npu_test.cc
+++ b/paddle/fluid/operators/assign_op_npu_test.cc
@@ -75,6 +75,6 @@ void Compare(f::Scope* scope, const p::DeviceContext& ctx,
 
 TEST(assign, NPU_fp32) {
   f::Scope scope;
-  p::NPUDeviceContext ctx(p::NPUPlace(0));
-  Compare<float>(&scope, ctx, "assign");
+  auto* ctx = p::DeviceContextPool::Instance().Get(p::NPUPlace(0));
+  Compare<float>(&scope, *ctx, "assign");
 }
diff --git a/paddle/fluid/operators/cast_op_npu.cc b/paddle/fluid/operators/cast_op_npu.cc
index 20b33c4e4e05a..8d34e0ba99c2c 100644
--- a/paddle/fluid/operators/cast_op_npu.cc
+++ b/paddle/fluid/operators/cast_op_npu.cc
@@ -12,7 +12,6 @@ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License. */
 
-#ifdef PADDLE_WITH_ASCEND_CL
 #include <memory>
 #include <string>
 
@@ -41,11 +40,20 @@ class CastNPUKernel : public framework::OpKernel<T> {
   void Compute(const framework::ExecutionContext& ctx) const override {
     auto* x = ctx.Input<Tensor>("X");
     int dtype = ctx.Attr<int>("out_dtype");
-
     auto* out = ctx.Output<Tensor>("Out");
-
     auto place = ctx.GetPlace();
 
+    if (x->type() == dtype) {
+      // NOTE(zhiqiu): NPU cast op may result in wrong value, so
+      // add special case here.
+      VLOG(4) << "cast to same dtype:" << dtype;
+      out->mutable_data(place, x->type());
+      framework::TensorCopy(
+          *x, ctx.GetPlace(),
+          ctx.template device_context<platform::DeviceContext>(), out);
+      return;
+    }
+
     auto iter = DTYPE_2_ACL_DTYPE.find(
         static_cast<framework::proto::VarType::Type>(dtype));
     int aclDtype = iter->second;
@@ -76,7 +84,7 @@ class CastNPUKernel : public framework::OpKernel<T> {
   }
 };
 }  // namespace operators
-}  // namespace paddleaclDtype
+}  // namespace paddle
 
 namespace ops = paddle::operators;
 
@@ -89,4 +97,3 @@ REGISTER_OP_NPU_KERNEL(
     ops::CastNPUKernel<paddle::platform::NPUDeviceContext, float>,
     ops::CastNPUKernel<paddle::platform::NPUDeviceContext,
                        paddle::platform::float16>);
-#endif
diff --git a/paddle/fluid/operators/elementwise/elementwise_add_op_npu.cc b/paddle/fluid/operators/elementwise/elementwise_add_op_npu.cc
index 5b8d08a8943dd..3768748931ded 100644
--- a/paddle/fluid/operators/elementwise/elementwise_add_op_npu.cc
+++ b/paddle/fluid/operators/elementwise/elementwise_add_op_npu.cc
@@ -100,9 +100,9 @@ class ElementwiseAddGradNPUKernel : public framework::OpKernel<T> {
                                   {{"axes", axes}, {"keep_dims", true}});
         runner.Run(stream);
       } else {
-        ctx.template device_context<paddle::platform::NPUDeviceContext>()
-            .Wait();
-        framework::TensorCopySync(*tmp_dout, ctx.GetPlace(), dx);
+        framework::TensorCopy(
+            *tmp_dout, ctx.GetPlace(),
+            ctx.template device_context<platform::DeviceContext>(), dx);
       }
     }
 
@@ -127,8 +127,6 @@ class ElementwiseAddGradNPUKernel : public framework::OpKernel<T> {
                                   {{"axes", axes}, {"keep_dims", false}});
         runner.Run(stream);
         tmp_dout = &reduced_dout;
-        ctx.template device_context<paddle::platform::NPUDeviceContext>()
-            .Wait();
       }
 
       // stage 2
@@ -144,9 +142,9 @@ class ElementwiseAddGradNPUKernel : public framework::OpKernel<T> {
                                   {{"axes", axes}, {"keep_dims", true}});
         runner.Run(stream);
       } else {
-        ctx.template device_context<paddle::platform::NPUDeviceContext>()
-            .Wait();
-        framework::TensorCopySync(*tmp_dout, ctx.GetPlace(), dy);
+        framework::TensorCopy(
+            *tmp_dout, ctx.GetPlace(),
+            ctx.template device_context<platform::DeviceContext>(), dy);
       }
     }
   }
diff --git a/paddle/fluid/operators/elementwise/elementwise_op_npu_test.cc b/paddle/fluid/operators/elementwise/elementwise_op_npu_test.cc
index df6fae6c8484a..f06dbd26873a6 100644
--- a/paddle/fluid/operators/elementwise/elementwise_op_npu_test.cc
+++ b/paddle/fluid/operators/elementwise/elementwise_op_npu_test.cc
@@ -38,7 +38,7 @@ USE_OP(elementwise_sub);
 USE_OP_DEVICE_KERNEL(elementwise_sub, NPU);
 
 template <typename T>
-void Compare(f::Scope* scope, const p::DeviceContext& ctx,
+void Compare(f::Scope *scope, const p::DeviceContext &ctx,
              std::string op_type) {
   // init
   auto x = scope->Var("X");
@@ -62,8 +62,6 @@ void Compare(f::Scope* scope, const p::DeviceContext& ctx,
   TensorFromVector(init_y, ctx, tensor_y);
   tensor_y->Resize({10, 10});
 
-  ctx.Wait();
-
   auto place = ctx.GetPlace();
   auto out = scope->Var("Out");
   auto tensor_out = out->GetMutable<f::LoDTensor>();
@@ -74,7 +72,6 @@ void Compare(f::Scope* scope, const p::DeviceContext& ctx,
                                     {{"Out", {"Out"}}}, attrs);
 
   op->Run(*scope, place);
-  ctx.Wait();
 
   std::vector<T> out_vec;
   TensorToVector(*tensor_out, ctx, &out_vec);
@@ -93,7 +90,7 @@ void Compare(f::Scope* scope, const p::DeviceContext& ctx,
 }
 
 template <typename T>
-void CompareGrad(f::Scope* scope, const p::DeviceContext& ctx,
+void CompareGrad(f::Scope *scope, const p::DeviceContext &ctx,
                  std::string op_type) {
   // init
   auto dout = scope->Var("DOut");
@@ -122,8 +119,6 @@ void CompareGrad(f::Scope* scope, const p::DeviceContext& ctx,
   TensorFromVector(init_dout, ctx, tensor_dout);
   tensor_dout->Resize({2, 3, 5});
 
-  ctx.Wait();
-
   // run
   f::AttributeMap attrs;
   auto op = f::OpRegistry::CreateOp(
@@ -132,7 +127,6 @@ void CompareGrad(f::Scope* scope, const p::DeviceContext& ctx,
 
   auto place = ctx.GetPlace();
   op->Run(*scope, place);
-  ctx.Wait();
 
   std::vector<T> dx_vec;
   TensorToVector(*tensor_dx, ctx, &dx_vec);
@@ -160,30 +154,30 @@ void CompareGrad(f::Scope* scope, const p::DeviceContext& ctx,
 
 TEST(elementwise_add, NPU_fp32) {
   f::Scope scope;
-  p::NPUDeviceContext ctx(p::NPUPlace(0));
-  Compare<float>(&scope, ctx, "elementwise_add");
+  auto *ctx = p::DeviceContextPool::Instance().Get(p::NPUPlace(0));
+  Compare<float>(&scope, *ctx, "elementwise_add");
 }
 
 TEST(elementwise_sub, NPU_fp32) {
   f::Scope scope;
-  p::NPUDeviceContext ctx(p::NPUPlace(0));
-  Compare<float>(&scope, ctx, "elementwise_sub");
+  auto *ctx = p::DeviceContextPool::Instance().Get(p::NPUPlace(0));
+  Compare<float>(&scope, *ctx, "elementwise_sub");
 }
 
 TEST(elementwise_sub, NPU_fp16) {
   f::Scope scope;
-  p::NPUDeviceContext ctx(p::NPUPlace(0));
-  Compare<p::float16>(&scope, ctx, "elementwise_sub");
+  auto *ctx = p::DeviceContextPool::Instance().Get(p::NPUPlace(0));
+  Compare<p::float16>(&scope, *ctx, "elementwise_sub");
 }
 
 TEST(elementwise_sub_grad, NPU) {
   f::Scope scope;
-  p::NPUDeviceContext ctx(p::NPUPlace(0));
-  CompareGrad<float>(&scope, ctx, "elementwise_sub_grad");
+  auto *ctx = p::DeviceContextPool::Instance().Get(p::NPUPlace(0));
+  CompareGrad<float>(&scope, *ctx, "elementwise_sub_grad");
 }
 
 TEST(elementwise_add_grad, NPU) {
   f::Scope scope;
-  p::NPUDeviceContext ctx(p::NPUPlace(0));
-  CompareGrad<float>(&scope, ctx, "elementwise_add_grad");
+  auto *ctx = p::DeviceContextPool::Instance().Get(p::NPUPlace(0));
+  CompareGrad<float>(&scope, *ctx, "elementwise_add_grad");
 }
diff --git a/paddle/fluid/operators/elementwise/elementwise_sub_op_npu.cc b/paddle/fluid/operators/elementwise/elementwise_sub_op_npu.cc
index 809445c286203..a6e438f8016e0 100644
--- a/paddle/fluid/operators/elementwise/elementwise_sub_op_npu.cc
+++ b/paddle/fluid/operators/elementwise/elementwise_sub_op_npu.cc
@@ -102,7 +102,9 @@ class ElementwiseSubGradNPUKernel : public framework::OpKernel<T> {
                                   {{"axes", axes}, {"keep_dims", true}});
         runner.Run(stream);
       } else {
-        framework::TensorCopySync(*tmp_dout, ctx.GetPlace(), dx);
+        framework::TensorCopy(
+            *tmp_dout, ctx.GetPlace(),
+            ctx.template device_context<platform::DeviceContext>(), dx);
       }
     }
     if (dy) {
diff --git a/paddle/fluid/operators/expand_op_npu.cc b/paddle/fluid/operators/expand_op_npu.cc
index f4ae1785b024f..453a990efbded 100644
--- a/paddle/fluid/operators/expand_op_npu.cc
+++ b/paddle/fluid/operators/expand_op_npu.cc
@@ -58,9 +58,11 @@ class ExpandNPUKernel : public framework::OpKernel<T> {
             expand_times.size(), static_cast<size_t>(in_dims.size())));
     auto* out0 = context.Output<framework::LoDTensor>("Out");
     framework::DDim out_dims(in_dims);
+
     for (size_t i = 0; i < expand_times.size(); ++i) {
       out_dims[i] *= expand_times[i];
     }
+
     out0->Resize(out_dims);
     out0->mutable_data<T>(context.device_context().GetPlace());
     auto runner =
diff --git a/paddle/fluid/operators/expand_op_npu_test.cc b/paddle/fluid/operators/expand_op_npu_test.cc
index 95f7865a8a3a4..880eb341f2093 100644
--- a/paddle/fluid/operators/expand_op_npu_test.cc
+++ b/paddle/fluid/operators/expand_op_npu_test.cc
@@ -69,6 +69,6 @@ void Compare(f::Scope* scope, const p::DeviceContext& ctx) {
 
 TEST(expand, NPU_fp32) {
   f::Scope scope;
-  p::NPUDeviceContext ctx(p::NPUPlace(0));
-  Compare<float>(&scope, ctx);
+  auto* ctx = p::DeviceContextPool::Instance().Get(p::NPUPlace(0));
+  Compare<float>(&scope, *ctx);
 }
diff --git a/paddle/fluid/operators/fill_constant_op_npu.cc b/paddle/fluid/operators/fill_constant_op_npu.cc
index 9d5499e00c82f..4ea4c11c47835 100644
--- a/paddle/fluid/operators/fill_constant_op_npu.cc
+++ b/paddle/fluid/operators/fill_constant_op_npu.cc
@@ -65,7 +65,7 @@ class FillConstantNPUKernel : public framework::OpKernel<T> {
 
     Tensor tensor_tmp(data_type);
     tensor_tmp.mutable_data<T>({1}, ctx.GetPlace());
-    TensorFromVector(std::vector<T>{value}, ctx.device_context(), &tensor_tmp);
+    FillNpuTensorWithConstant<T>(&tensor_tmp, value);
 
     out_var->mutable_data<T>(shape, place);
     auto runner = NpuOpRunner("FillD", {tensor_tmp}, {*out_var},
diff --git a/paddle/fluid/operators/gather_op_npu.cc b/paddle/fluid/operators/gather_op_npu.cc
index 8a487234ad94a..1ee8889995f4d 100644
--- a/paddle/fluid/operators/gather_op_npu.cc
+++ b/paddle/fluid/operators/gather_op_npu.cc
@@ -50,6 +50,7 @@ class GatherGradOpNPUKernel : public framework::OpKernel<T> {
     auto *x = ctx.Input<Tensor>("X");
     auto *dout = ctx.Input<Tensor>(framework::GradVarName("Out"));
     auto *dx = ctx.Output<Tensor>(framework::GradVarName("X"));
+    dx->mutable_data<T>(ctx.GetPlace());
 
     // step1: Unsqueeze index
     framework::Tensor tmp_tensor(index->type());
@@ -66,7 +67,7 @@ class GatherGradOpNPUKernel : public framework::OpKernel<T> {
             .stream();
 
     // step2: ZerosLike x in device
-    Tensor zeroslike_xout(x->type());
+    Tensor zeroslike_xout(dx->type());
     zeroslike_xout.Resize(x->dims());
     auto p = zeroslike_xout.mutable_data<T>(ctx.GetPlace());
 
@@ -74,7 +75,6 @@ class GatherGradOpNPUKernel : public framework::OpKernel<T> {
                              zeroslike_xout.numel() * sizeof(T), stream);
 
     // step3: scatter(x_grad)
-    dx->mutable_data<T>(ctx.GetPlace());
     auto runner_scatter = NpuOpRunner(
         "TensorScatterUpdate", {zeroslike_xout, *index, *dout}, {*dx}, {});
     runner_scatter.Run(stream);
diff --git a/paddle/fluid/operators/gather_op_npu_test.cc b/paddle/fluid/operators/gather_op_npu_test.cc
index de067e45585d9..31e19d8f600c3 100644
--- a/paddle/fluid/operators/gather_op_npu_test.cc
+++ b/paddle/fluid/operators/gather_op_npu_test.cc
@@ -152,18 +152,18 @@ void CompareGrad(f::Scope* scope, const p::DeviceContext& ctx,
 
 TEST(gather, NPU_fp32) {
   f::Scope scope;
-  p::NPUDeviceContext ctx(p::NPUPlace(0));
-  Compare<float>(&scope, ctx, "gather");
+  auto* ctx = p::DeviceContextPool::Instance().Get(p::NPUPlace(0));
+  Compare<float>(&scope, *ctx, "gather");
 }
 
 TEST(gather, NPU_fp16) {
   f::Scope scope;
-  p::NPUDeviceContext ctx(p::NPUPlace(0));
-  Compare<p::float16>(&scope, ctx, "gather");
+  auto* ctx = p::DeviceContextPool::Instance().Get(p::NPUPlace(0));
+  Compare<p::float16>(&scope, *ctx, "gather");
 }
 
 TEST(gather_grad, NPU_fp32) {
   f::Scope scope;
-  p::NPUDeviceContext ctx(p::NPUPlace(0));
-  CompareGrad<float>(&scope, ctx, "gather_grad");
+  auto* ctx = p::DeviceContextPool::Instance().Get(p::NPUPlace(0));
+  CompareGrad<float>(&scope, *ctx, "gather_grad");
 }
diff --git a/paddle/fluid/operators/gelu_op_npu_test.cc b/paddle/fluid/operators/gelu_op_npu_test.cc
index f11812ce3bb21..830dcd5983901 100644
--- a/paddle/fluid/operators/gelu_op_npu_test.cc
+++ b/paddle/fluid/operators/gelu_op_npu_test.cc
@@ -157,12 +157,12 @@ void CompareGrad(f::Scope* scope, const p::DeviceContext& ctx) {
 
 TEST(gelu, NPU_fp32) {
   f::Scope scope;
-  p::NPUDeviceContext ctx(p::NPUPlace(0));
-  Compare<float>(&scope, ctx);
+  auto* ctx = p::DeviceContextPool::Instance().Get(p::NPUPlace(0));
+  Compare<float>(&scope, *ctx);
 }
 
 TEST(gelu_grad, NPU) {
   f::Scope scope;
-  p::NPUDeviceContext ctx(p::NPUPlace(0));
-  CompareGrad<float>(&scope, ctx);
+  auto* ctx = p::DeviceContextPool::Instance().Get(p::NPUPlace(0));
+  CompareGrad<float>(&scope, *ctx);
 }
diff --git a/paddle/fluid/operators/increment_op_npu.cc b/paddle/fluid/operators/increment_op_npu.cc
index c1859bce02c90..7d75e385e8f3b 100644
--- a/paddle/fluid/operators/increment_op_npu.cc
+++ b/paddle/fluid/operators/increment_op_npu.cc
@@ -39,10 +39,9 @@ class IncrementalNPUKernel : public framework::OpKernel<T> {
     out_tensor->mutable_data<T>(context.GetPlace());
 
     Tensor step_tensor(x_tensor->type());
-    std::vector<T> step_vec;
-    step_vec.push_back(static_cast<T>(step));
-    framework::TensorFromVector(step_vec, context.device_context(),
-                                &step_tensor);
+
+    step_tensor.mutable_data<T>({1}, context.GetPlace());
+    FillNpuTensorWithConstant<T>(&step_tensor, static_cast<T>(step));
 
     auto runner =
         NpuOpRunner("Add", {*x_tensor, step_tensor}, {*out_tensor}, {});
diff --git a/paddle/fluid/operators/increment_op_npu_test.cc b/paddle/fluid/operators/increment_op_npu_test.cc
index b466ae275dd1c..bde349b0a33b9 100644
--- a/paddle/fluid/operators/increment_op_npu_test.cc
+++ b/paddle/fluid/operators/increment_op_npu_test.cc
@@ -71,12 +71,12 @@ void Compare(f::Scope* scope, const p::DeviceContext& ctx,
 
 TEST(increment, NPU_fp32) {
   f::Scope scope;
-  p::NPUDeviceContext ctx(p::NPUPlace(0));
-  Compare<float>(&scope, ctx, "increment");
+  auto* ctx = p::DeviceContextPool::Instance().Get(p::NPUPlace(0));
+  Compare<float>(&scope, *ctx, "increment");
 }
 
 TEST(increment, NPU_fp64) {
   f::Scope scope;
-  p::NPUDeviceContext ctx(p::NPUPlace(0));
-  Compare<float>(&scope, ctx, "increment");
+  auto* ctx = p::DeviceContextPool::Instance().Get(p::NPUPlace(0));
+  Compare<double>(&scope, *ctx, "increment");
 }
diff --git a/paddle/fluid/operators/layer_norm_op_npu.cc b/paddle/fluid/operators/layer_norm_op_npu.cc
index 95549319cd209..c0c228ef22af3 100644
--- a/paddle/fluid/operators/layer_norm_op_npu.cc
+++ b/paddle/fluid/operators/layer_norm_op_npu.cc
@@ -80,8 +80,7 @@ class LayerNormNPUKernel : public framework::OpKernel<T> {
       default_scale.mutable_data<T>(framework::make_ddim(axes), place);
       Tensor value(x->type());
       value.mutable_data<T>({1}, place);
-      TensorFromVector(std::vector<T>{static_cast<T>(1.0)},
-                       ctx.device_context(), &value);
+      FillNpuTensorWithConstant<T>(&value, static_cast<T>(1.0));
       auto runner =
           NpuOpRunner("FillD", {value}, {default_scale}, {{"dims", axes}});
       runner.Run(stream);
@@ -95,8 +94,7 @@ class LayerNormNPUKernel : public framework::OpKernel<T> {
       default_bias.mutable_data<T>(framework::make_ddim(axes), place);
       Tensor value(x->type());
       value.mutable_data<T>({1}, place);
-      TensorFromVector(std::vector<T>{static_cast<T>(0)}, ctx.device_context(),
-                       &value);
+      FillNpuTensorWithConstant<T>(&value, static_cast<T>(0));
       auto runner =
           NpuOpRunner("FillD", {value}, {default_bias}, {{"dims", axes}});
       runner.Run(stream);
@@ -251,8 +249,7 @@ class LayerNormGradNPUKernel : public framework::OpKernel<T> {
       default_scale.mutable_data<T>(framework::make_ddim(axes), place);
       Tensor value(x->type());
       value.mutable_data<T>({1}, place);
-      TensorFromVector(std::vector<T>{static_cast<T>(1.0)},
-                       ctx.device_context(), &value);
+      FillNpuTensorWithConstant<T>(&value, static_cast<T>(1.0));
       auto runner =
           NpuOpRunner("FillD", {value}, {default_scale}, {{"dims", axes}});
       runner.Run(stream);
diff --git a/paddle/fluid/operators/load_combine_op_npu.cc b/paddle/fluid/operators/load_combine_op_npu.cc
new file mode 100644
index 0000000000000..4b9b96c23b0b7
--- /dev/null
+++ b/paddle/fluid/operators/load_combine_op_npu.cc
@@ -0,0 +1,25 @@
+/* Copyright (c) 2021 PaddlePaddle Authors. All Rights Reserved.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License. */
+
+#include "paddle/fluid/operators/load_combine_op.h"
+
+namespace ops = paddle::operators;
+
+REGISTER_OP_NPU_KERNEL(
+    load_combine,
+    ops::LoadCombineOpKernel<paddle::platform::NPUDeviceContext, float>,
+    ops::LoadCombineOpKernel<paddle::platform::NPUDeviceContext, double>,
+    ops::LoadCombineOpKernel<paddle::platform::NPUDeviceContext, int>,
+    ops::LoadCombineOpKernel<paddle::platform::NPUDeviceContext, int8_t>,
+    ops::LoadCombineOpKernel<paddle::platform::NPUDeviceContext, int64_t>);
diff --git a/paddle/fluid/operators/load_op_npu.cc b/paddle/fluid/operators/load_op_npu.cc
new file mode 100644
index 0000000000000..1f53280345831
--- /dev/null
+++ b/paddle/fluid/operators/load_op_npu.cc
@@ -0,0 +1,24 @@
+/* Copyright (c) 2021 PaddlePaddle Authors. All Rights Reserved.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License. */
+
+#include "paddle/fluid/operators/load_op.h"
+
+namespace ops = paddle::operators;
+
+REGISTER_OP_NPU_KERNEL(
+    load, ops::LoadOpKernel<paddle::platform::NPUDeviceContext, float>,
+    ops::LoadOpKernel<paddle::platform::NPUDeviceContext, double>,
+    ops::LoadOpKernel<paddle::platform::NPUDeviceContext, int>,
+    ops::LoadOpKernel<paddle::platform::NPUDeviceContext, int8_t>,
+    ops::LoadOpKernel<paddle::platform::NPUDeviceContext, int64_t>);
diff --git a/paddle/fluid/operators/lookup_table_v2_op_npu.cc b/paddle/fluid/operators/lookup_table_v2_op_npu.cc
index fab2d7f7aa054..f614d906baa75 100644
--- a/paddle/fluid/operators/lookup_table_v2_op_npu.cc
+++ b/paddle/fluid/operators/lookup_table_v2_op_npu.cc
@@ -28,6 +28,12 @@ class LookupTableV2NPUKernel : public framework::OpKernel<T> {
     auto *ids_t = ctx.Input<framework::LoDTensor>("Ids");      // int tensor
     auto *output_t = ctx.Output<framework::LoDTensor>("Out");  // float tensor
     auto *table_t = ctx.Input<framework::LoDTensor>("W");
+
+    // It seems cann 20.1 accepts int64, but cann 20.2+ not.
+    PADDLE_ENFORCE_EQ(ids_t->type(), framework::proto::VarType::INT32,
+                      platform::errors::Unimplemented(
+                          "The index of LookupTableV2 should be int32."));
+
     auto *table_var = ctx.InputVar("W");
     PADDLE_ENFORCE_EQ(
         table_var->IsType<framework::LoDTensor>(), true,
@@ -49,28 +55,26 @@ class LookupTableV2GradNPUKernel : public framework::OpKernel<T> {
  public:
   void Compute(const framework::ExecutionContext &ctx) const override {
     auto *ids_t = ctx.Input<framework::LoDTensor>("Ids");
+
     auto *output_grad_t =
         ctx.Input<framework::LoDTensor>(framework::GradVarName("Out"));
     auto *table_grad_t =
         ctx.Output<framework::LoDTensor>(framework::GradVarName("W"));
-    table_grad_t->mutable_data<T>(ctx.GetPlace());
+    auto *p = table_grad_t->mutable_data<T>(ctx.GetPlace());
 
     auto stream =
         ctx.template device_context<paddle::platform::NPUDeviceContext>()
             .stream();
 
-    // step2: ZerosLike x in device
-    Tensor zeroslike_w(table_grad_t->type());
-    zeroslike_w.Resize(table_grad_t->dims());
-    auto p = zeroslike_w.mutable_data<T>(ctx.GetPlace());
-
     platform::NPUMemsetAsync(static_cast<void *>(p), 0,
-                             zeroslike_w.numel() * sizeof(T), stream);
+                             table_grad_t->numel() * sizeof(T), stream);
 
-    table_grad_t->mutable_data<T>(ctx.GetPlace());
+    // NOTE(zhiqiu): It seems in cann 20.1, the first input and output
+    // can be different tensor, but in cann 20.2+, it does inplace operation.
+    // Thus, the first input and output should be same tensor.
     auto runner_scatter =
-        NpuOpRunner("ScatterAdd", {zeroslike_w, *ids_t, *output_grad_t},
-                    {*table_grad_t}, {});
+        NpuOpRunner("ScatterAdd", {*table_grad_t, *ids_t, *output_grad_t},
+                    {*table_grad_t}, {{"use_locking", true}});
     runner_scatter.Run(stream);
   }
 };
diff --git a/paddle/fluid/operators/lookup_table_v2_op_npu_test.cc b/paddle/fluid/operators/lookup_table_v2_op_npu_test.cc
deleted file mode 100644
index f37915834bd75..0000000000000
--- a/paddle/fluid/operators/lookup_table_v2_op_npu_test.cc
+++ /dev/null
@@ -1,142 +0,0 @@
-/* Copyright (c) 2021 PaddlePaddle Authors. All Rights Reserved.
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License. */
-
-#ifndef _WIN32
-#include <unistd.h>
-#endif
-
-#include <cmath>
-#include <iostream>
-#include <numeric>
-#include <string>
-#include <thread>  // NOLINT
-#include <vector>
-
-#include "gtest/gtest.h"
-#include "paddle/fluid/framework/op_registry.h"
-#include "paddle/fluid/framework/operator.h"
-#include "paddle/fluid/framework/program_desc.h"
-#include "paddle/fluid/operators/dropout_op.h"
-#include "paddle/fluid/operators/math/math_function.h"
-#include "paddle/fluid/string/printf.h"
-
-namespace f = paddle::framework;
-namespace p = paddle::platform;
-namespace m = paddle::operators::math;
-
-USE_OP(lookup_table_v2);
-USE_OP_DEVICE_KERNEL(lookup_table_v2, NPU);
-
-template <typename T>
-void Compare(f::Scope* scope, const p::DeviceContext& ctx) {
-  // init
-  auto ids = scope->Var("Ids");
-  auto out = scope->Var("Out");
-  auto w = scope->Var("W");
-
-  auto ids_t = ids->GetMutable<f::LoDTensor>();
-  auto out_t = out->GetMutable<f::LoDTensor>();
-  auto w_t = w->GetMutable<f::LoDTensor>();
-  int bsz = 10;
-  int dim = 32;
-  int seqlen = 8;
-  int vocab_size = 100;
-  TensorFromVector(std::vector<int64_t>(bsz * seqlen, 3), ctx, ids_t);
-  std::vector<T> val(vocab_size * dim, 10.);
-  TensorFromVector(val, ctx, w_t);
-  ids_t->Resize({bsz, seqlen});
-  w_t->Resize({vocab_size, dim});
-  out_t->Resize({bsz, seqlen, dim});
-  ctx.Wait();
-
-  auto place = ctx.GetPlace();
-  out_t->mutable_data<T>(place);
-  f::AttributeMap attrs = {{}};
-  auto op = f::OpRegistry::CreateOp("lookup_table_v2",
-                                    {{"W", {"W"}}, {"Ids", {"Ids"}}},
-                                    {{"Out", {"Out"}}}, attrs);
-  op->Run(*scope, place);
-  std::vector<T> out_v;
-  TensorToVector(*out_t, ctx, &out_v);
-  ctx.Wait();
-  EXPECT_EQ(out_t->numel(), bsz * seqlen * dim);
-  T res = std::accumulate(out_v.begin(), out_v.end(), 0.);
-  float eps = 1.e-6;
-  EXPECT_LT(fabs(res - bsz * seqlen * dim * 10.), eps);
-}
-
-template <typename T>
-void CompareGrad(f::Scope* scope, const p::DeviceContext& ctx) {
-  // init
-  auto w = scope->Var("W");
-  auto ids = scope->Var("Ids");
-  auto out = scope->Var("DOut");
-  auto dw = scope->Var("DW");
-
-  auto w_t = w->GetMutable<f::LoDTensor>();
-  auto ids_t = ids->GetMutable<f::LoDTensor>();
-  auto out_t = out->GetMutable<f::LoDTensor>();
-  auto dw_t = dw->GetMutable<f::LoDTensor>();
-
-  int bsz = 2;
-  int dim = 2;
-  int seqlen = 2;
-  int vocab_size = 4;
-
-  std::vector<int64_t> val_int(bsz * seqlen, 3);
-  std::vector<T> val(vocab_size * dim, 0.);
-  std::vector<T> val_out(bsz * seqlen * dim, 1.);
-
-  TensorFromVector(val_int, ctx, ids_t);
-  TensorFromVector(val, ctx, w_t);
-  TensorFromVector(val, ctx, dw_t);
-  TensorFromVector(val_out, ctx, out_t);
-
-  w_t->Resize({vocab_size, dim});
-  ids_t->Resize({bsz, seqlen});
-  out_t->Resize({bsz, seqlen, dim});
-  dw_t->Resize({vocab_size, dim});
-
-  ctx.Wait();
-
-  auto place = ctx.GetPlace();
-  out_t->mutable_data<T>(place);
-  w_t->mutable_data<T>(place);
-  dw_t->mutable_data<T>(place);
-  f::AttributeMap attrs = {{}};
-  auto op = f::OpRegistry::CreateOp(
-      "lookup_table_v2_grad",
-      {{"Ids", {"Ids"}}, {"W", {"W"}}, {"Out@GRAD", {"DOut"}}},
-      {{"W@GRAD", {"DW"}}}, attrs);
-  op->Run(*scope, place);
-  ctx.Wait();
-  std::vector<T> w_v;
-  TensorToVector(*dw_t, ctx, &w_v);
-  ctx.Wait();
-  EXPECT_EQ(dw_t->numel(), vocab_size * dim);
-  T res = std::accumulate(w_v.begin(), w_v.end(), 0.);
-  float eps = 1.e-6;
-  EXPECT_LT(fabs(res - bsz * seqlen * dim), eps);
-}
-
-TEST(lookup_table_v2, NPU_fp32) {
-  f::Scope scope;
-  p::NPUDeviceContext ctx(p::NPUPlace(0));
-  Compare<float>(&scope, ctx);
-}
-
-TEST(lookup_table_v2_grad, NPU_fp32) {
-  f::Scope scope;
-  p::NPUDeviceContext ctx(p::NPUPlace(0));
-  CompareGrad<float>(&scope, ctx);
-}
diff --git a/paddle/fluid/operators/mean_op_npu.cc b/paddle/fluid/operators/mean_op_npu.cc
index 676086bd08063..d6e982039fa29 100644
--- a/paddle/fluid/operators/mean_op_npu.cc
+++ b/paddle/fluid/operators/mean_op_npu.cc
@@ -68,10 +68,8 @@ class MeanGradNPUKernel : public framework::OpKernel<T> {
     Tensor mean_tensor(grad->type());
     mean_tensor.Resize({1});
     mean_tensor.mutable_data<T>(context.GetPlace());
-    std::vector<float> mean_vec;
-    mean_vec.push_back(1.0 / static_cast<float>(IG->numel()));
-    framework::TensorFromVector(mean_vec, context.device_context(),
-                                &mean_tensor);
+    FillNpuTensorWithConstant<T>(
+        &mean_tensor, static_cast<T>(1.0 / static_cast<float>(IG->numel())));
 
     // means mul ones
     Tensor mean_ma(grad->type());
diff --git a/paddle/fluid/operators/memcpy_op.cc b/paddle/fluid/operators/memcpy_op.cc
index d10d5bf12e6b4..4e10498efa10c 100644
--- a/paddle/fluid/operators/memcpy_op.cc
+++ b/paddle/fluid/operators/memcpy_op.cc
@@ -105,16 +105,18 @@ class MemcpyOpProtoMaker : public framework::OpProtoAndCheckerMaker {
               "is the same as input X.");
     AddAttr<int>("dst_place_type",
                  "Determine the dst place of tensor copy. "
-                 "By Now it ONLY support CUDAPlace and CUDAPinnedPlace. Other "
-                 "place type is Unimplemented and will cause ERROR."
+                 "By Now it ONLY support CUDAPlace <-> CUDAPinnedPlace or "
+                 "NPUPlace <-> CPUPlace. "
+                 "Other place type is Unimplemented and will cause ERROR."
                  "0: dst is on CPUPlace. "
                  "1: dst is on CUDAPlace. "
                  "2: dst is on CUDAPinnedPlace. "
-                 "3: dst is on XPUPlace. ");
+                 "3: dst is on XPUPlace. "
+                 "4: dst is on NPUPlace. ");
     AddComment(R"DOC(
     Memcpy Operator.
-    By now, it ONLY supports the memcopy between CUDAPinnedPlace and CUDAPlace,
-    and used as an internal op by Recompute-Offload.
+    By now, it ONLY supports the memcopy between CUDAPinnedPlace <-> CUDAPlace or 
+    NPUPlace <-> CPUPlace, and used as an internal op by Recompute-Offload.
     You would have to update it if you want other more capacities.
 
 Out = X,  when type in [LoDTensor]
@@ -146,3 +148,11 @@ REGISTER_OP_CUDA_KERNEL_FUNCTOR(memcpy, float, ops::MemcpyKernel, double,
                                 ops::MemcpyKernel, plat::float16,
                                 ops::MemcpyKernel);
 #endif
+
+#ifdef PADDLE_WITH_ASCEND_CL
+REGISTER_OP_NPU_KERNEL_FUNCTOR(memcpy, float, ops::MemcpyKernel, double,
+                               ops::MemcpyKernel, int, ops::MemcpyKernel,
+                               int64_t, ops::MemcpyKernel, bool,
+                               ops::MemcpyKernel, plat::float16,
+                               ops::MemcpyKernel);
+#endif
diff --git a/paddle/fluid/operators/memcpy_op.h b/paddle/fluid/operators/memcpy_op.h
old mode 100755
new mode 100644
index f81ca05f4380a..63a41cc723731
--- a/paddle/fluid/operators/memcpy_op.h
+++ b/paddle/fluid/operators/memcpy_op.h
@@ -51,7 +51,17 @@ class MemcpyFunctor {
     } else if (dst_place_type_ == 1) {
       framework::TensorCopy(lod_tensor, dev_ctx_.GetPlace(), dev_ctx_,
                             &out_tensor);
-    } else {
+    }
+#ifdef PADDLE_WITH_ASCEND_CL
+    else if (dst_place_type_ == 0) {  // NOLINT
+      framework::TensorCopy(lod_tensor, platform::CPUPlace(), dev_ctx_,
+                            &out_tensor);
+    } else if (dst_place_type_ == 4) {
+      framework::TensorCopy(lod_tensor, dev_ctx_.GetPlace(), dev_ctx_,
+                            &out_tensor);
+    }
+#endif
+    else {  // NOLINT
       PADDLE_THROW(platform::errors::Unimplemented(
           "memcpy dst_place_type: %d is not supported yet.", dst_place_type_));
     }
diff --git a/paddle/fluid/operators/npu_op_runner.cc b/paddle/fluid/operators/npu_op_runner.cc
index aa0c4d2dfd274..276bfa7b3281b 100644
--- a/paddle/fluid/operators/npu_op_runner.cc
+++ b/paddle/fluid/operators/npu_op_runner.cc
@@ -64,8 +64,10 @@ aclFormat ConvertToNpuFormat(DataLayout layout) {
   return iter->second;
 }
 
-aclrtStream GetCurrentNPUStream() {
-  int device_id = platform::GetCurrentNPUDeviceId();
+aclrtStream GetCurrentNPUStream(int device_id) {
+  if (device_id == -1) {
+    device_id = platform::GetCurrentNPUDeviceId();
+  }
   platform::DeviceContextPool &pool = platform::DeviceContextPool::Instance();
   auto *dev_ctx = static_cast<platform::NPUDeviceContext *>(
       pool.Get(platform::NPUPlace(device_id)));
@@ -299,5 +301,6 @@ void NpuOpRunner::Run(aclrtStream stream) {
   VLOG(4) << "after aclopCompileAndExecute: " << ret;
   PADDLE_ENFORCE_NPU_SUCCESS(ret);
 }
+
 }  // namespace operators
 }  // namespace paddle
diff --git a/paddle/fluid/operators/npu_op_runner.h b/paddle/fluid/operators/npu_op_runner.h
index e178f7fc6e96d..5506ddd89692b 100644
--- a/paddle/fluid/operators/npu_op_runner.h
+++ b/paddle/fluid/operators/npu_op_runner.h
@@ -86,6 +86,44 @@ class NpuOpRunner {
 
 aclDataType ConvertToNpuDtype(framework::proto::VarType::Type dtype);
 
+aclrtStream GetCurrentNPUStream(int device_id = -1);
+
+template <typename T>
+void FillNpuTensorWithConstant(Tensor *tensor, T val) {
+  PADDLE_ENFORCE_EQ(
+      tensor->IsInitialized(), true,
+      platform::errors::InvalidArgument("The tensor should be initialized."));
+  PADDLE_ENFORCE_EQ(
+      platform::is_npu_place(tensor->place()), true,
+      platform::errors::InvalidArgument("The tensor should be on NPUPlace."));
+  // do async for better performance
+  if (typeid(float) == typeid(T) || typeid(platform::float16) == typeid(T)) {
+    Tensor tmp(tensor->type());
+    tmp.Resize(tensor->dims());
+    tmp.mutable_data<T>(tensor->place());
+    auto stream = GetCurrentNPUStream(
+        BOOST_GET_CONST(platform::NPUPlace, tensor->place()).device);
+    platform::NPUMemsetAsync(tmp.data<void>(), 0, tmp.numel() * sizeof(T),
+                             stream);
+    auto runner = NpuOpRunner("Power", {tmp}, {*tensor},
+                              {{"power", static_cast<float>(1)},
+                               {"scale", static_cast<float>(0)},
+                               {"shift", static_cast<float>(val)}});
+    runner.Run(stream);
+  } else {
+    T *array = new T[tensor->numel()];
+    for (unsigned int i = 0; i < tensor->numel(); ++i) {
+      array[i] = static_cast<T>(val);
+    }
+    std::vector<T> vec(tensor->numel(), static_cast<T>(val));
+    // do sync copy
+    memory::Copy(BOOST_GET_CONST(platform::NPUPlace, tensor->place()),
+                 tensor->data<void>(), platform::CPUPlace(), array,
+                 tensor->numel() * sizeof(T), nullptr);
+    delete[] array;
+  }
+}
+
 }  // namespace operators
 }  // namespace paddle
 #endif
diff --git a/paddle/fluid/operators/optimizers/adam_op_npu.cc b/paddle/fluid/operators/optimizers/adam_op_npu.cc
index 134544c2f65bc..b024aca21c382 100644
--- a/paddle/fluid/operators/optimizers/adam_op_npu.cc
+++ b/paddle/fluid/operators/optimizers/adam_op_npu.cc
@@ -61,8 +61,23 @@ class AdamNPUKernel : public framework::OpKernel<T> {
     param_out->mutable_data<T>(ctx.GetPlace());
     mom1_out->mutable_data<T>(ctx.GetPlace());
     mom2_out->mutable_data<T>(ctx.GetPlace());
-    beta1_pow_out->mutable_data<T>(ctx.GetPlace());
-    beta2_pow_out->mutable_data<T>(ctx.GetPlace());
+
+    // NOTE(zhiqiu): beta1_pow and beta2_pow may on CPU and not transform place.
+    if (beta1_pow->place() == platform::CPUPlace()) {
+      T beta1 = *beta1_pow->data<T>();
+      // `mutable_data` operation needs to be done after getting data
+      beta1_pow_out->mutable_data<T>(ctx.GetPlace());
+      FillNpuTensorWithConstant<T>(beta1_pow_out, beta1);
+    } else {
+      beta1_pow_out->mutable_data<T>(ctx.GetPlace());
+    }
+    if (beta2_pow->place() == platform::CPUPlace()) {
+      T beta2 = *beta2_pow->data<T>();
+      beta2_pow_out->mutable_data<T>(ctx.GetPlace());
+      FillNpuTensorWithConstant<T>(beta2_pow_out, beta2);
+    } else {
+      beta2_pow_out->mutable_data<T>(ctx.GetPlace());
+    }
 
     T beta1 = static_cast<T>(ctx.Attr<float>("beta1"));
     if (ctx.HasInput("Beta1Tensor")) {
@@ -100,18 +115,15 @@ class AdamNPUKernel : public framework::OpKernel<T> {
 
     // reshape
     Tensor beta1_tensor(framework::proto::VarType::FP32);
-    beta1_tensor.mutable_data<float>({1}, ctx.GetPlace());
-    TensorFromVector(std::vector<T>{beta1}, ctx.device_context(),
-                     &beta1_tensor);
+    beta1_tensor.mutable_data<T>({1}, ctx.GetPlace());
+    FillNpuTensorWithConstant<T>(&beta1_tensor, beta1);
     Tensor beta2_tensor(framework::proto::VarType::FP32);
-    beta2_tensor.mutable_data<float>({1}, ctx.GetPlace());
-    TensorFromVector(std::vector<T>{beta2}, ctx.device_context(),
-                     &beta2_tensor);
+    beta2_tensor.mutable_data<T>({1}, ctx.GetPlace());
+    FillNpuTensorWithConstant<T>(&beta2_tensor, beta2);
 
     Tensor epsilon_tensor(framework::proto::VarType::FP32);
     epsilon_tensor.mutable_data<T>({1}, ctx.GetPlace());
-    TensorFromVector(std::vector<T>{epsilon}, ctx.device_context(),
-                     &epsilon_tensor);
+    FillNpuTensorWithConstant<T>(&epsilon_tensor, epsilon);
     auto stream =
         ctx.template device_context<paddle::platform::NPUDeviceContext>()
             .stream();
@@ -130,16 +142,19 @@ class AdamNPUKernel : public framework::OpKernel<T> {
     // NOTE(zhiqiu): ApplyAdamD updates params inplace, so
     // if param and param_out is not same, we need to do copy.
     if (param_out->data<T>() != param->data<T>()) {
-      ctx.template device_context<paddle::platform::NPUDeviceContext>().Wait();
-      framework::TensorCopySync(*param, ctx.GetPlace(), param_out);
+      framework::TensorCopy(
+          *param, ctx.GetPlace(),
+          ctx.template device_context<platform::DeviceContext>(), param_out);
     }
     if (mom1_out->data<T>() != mom1->data<T>()) {
-      ctx.template device_context<paddle::platform::NPUDeviceContext>().Wait();
-      framework::TensorCopySync(*mom1, ctx.GetPlace(), mom1_out);
+      framework::TensorCopy(
+          *mom1, ctx.GetPlace(),
+          ctx.template device_context<platform::DeviceContext>(), mom1_out);
     }
     if (mom2_out->data<T>() != mom2->data<T>()) {
-      ctx.template device_context<paddle::platform::NPUDeviceContext>().Wait();
-      framework::TensorCopySync(*mom2, ctx.GetPlace(), mom2_out);
+      framework::TensorCopy(
+          *mom2, ctx.GetPlace(),
+          ctx.template device_context<platform::DeviceContext>(), mom2_out);
     }
     auto runner_m1 =
         NpuOpRunner("Mul", {*beta1_pow, beta1_tensor}, {*beta1_pow_out}, {});
diff --git a/paddle/fluid/operators/optimizers/sgd_op_npu.cc b/paddle/fluid/operators/optimizers/sgd_op_npu.cc
index b7aaff5d45791..a8d19148ef520 100644
--- a/paddle/fluid/operators/optimizers/sgd_op_npu.cc
+++ b/paddle/fluid/operators/optimizers/sgd_op_npu.cc
@@ -44,8 +44,9 @@ class SGDNPUKernel : public framework::OpKernel<T> {
     // NOTE(zhiqiu): ApplyGradientDescent updates params inplace, so
     // if param and param_out is not same, we need to do copy.
     if (param_out->data<T>() != param_var->data<T>()) {
-      ctx.template device_context<paddle::platform::NPUDeviceContext>().Wait();
-      framework::TensorCopySync(*param_var, ctx.GetPlace(), param_out);
+      framework::TensorCopy(
+          *param_var, ctx.GetPlace(),
+          ctx.template device_context<platform::DeviceContext>(), param_out);
     }
   }
 };
diff --git a/paddle/fluid/operators/range_op_npu.cc b/paddle/fluid/operators/range_op_npu.cc
index 228372e1e93e0..a9a2effd2eb9d 100644
--- a/paddle/fluid/operators/range_op_npu.cc
+++ b/paddle/fluid/operators/range_op_npu.cc
@@ -39,11 +39,23 @@ class RangeNPUKernel : public framework::OpKernel<T> {
     auto* out = context.Output<framework::Tensor>("Out");
 
     framework::Tensor n;
-    framework::TensorCopySync(*start_t, platform::CPUPlace(), &n);
+    framework::TensorCopy(
+        *start_t, platform::CPUPlace(),
+        context.template device_context<platform::DeviceContext>(), &n);
+    context.template device_context<paddle::platform::NPUDeviceContext>()
+        .Wait();
     T start = n.data<T>()[0];
-    framework::TensorCopySync(*end_t, platform::CPUPlace(), &n);
+    framework::TensorCopy(
+        *end_t, platform::CPUPlace(),
+        context.template device_context<platform::DeviceContext>(), &n);
+    context.template device_context<paddle::platform::NPUDeviceContext>()
+        .Wait();
     T end = n.data<T>()[0];
-    framework::TensorCopySync(*step_t, platform::CPUPlace(), &n);
+    framework::TensorCopy(
+        *step_t, platform::CPUPlace(),
+        context.template device_context<platform::DeviceContext>(), &n);
+    context.template device_context<paddle::platform::NPUDeviceContext>()
+        .Wait();
     T step = n.data<T>()[0];
 
     int64_t size = 0;
diff --git a/paddle/fluid/operators/range_op_npu_test.cc b/paddle/fluid/operators/range_op_npu_test.cc
index 562a560b2f154..f2f395314c0cc 100644
--- a/paddle/fluid/operators/range_op_npu_test.cc
+++ b/paddle/fluid/operators/range_op_npu_test.cc
@@ -87,6 +87,6 @@ void Compare(f::Scope* scope, const p::DeviceContext& ctx,
 
 TEST(range, NPU) {
   f::Scope scope;
-  p::NPUDeviceContext ctx(p::NPUPlace(0));
-  Compare<int>(&scope, ctx, "range");
+  auto* ctx = p::DeviceContextPool::Instance().Get(p::NPUPlace(0));
+  Compare<int>(&scope, *ctx, "range");
 }
diff --git a/paddle/fluid/operators/reader/buffered_reader.cc b/paddle/fluid/operators/reader/buffered_reader.cc
index b29493404f453..f5d55791d86c6 100644
--- a/paddle/fluid/operators/reader/buffered_reader.cc
+++ b/paddle/fluid/operators/reader/buffered_reader.cc
@@ -53,9 +53,25 @@ BufferedReader::BufferedReader(
     stream_ = platform::CudaStreamResourcePool::Instance().New(dev_idx);
   }
 #endif
+
+#ifdef PADDLE_WITH_ASCEND_CL
+  if (platform::is_npu_place(place_)) {
+    int dev_idx = BOOST_GET_CONST(platform::NPUPlace, place_).device;
+    compute_stream_ =
+        ((platform::NPUDeviceContext *)(platform::DeviceContextPool::Instance()
+                                            .Get(place_)))
+            ->stream();
+    events_.resize(buffer_size);
+    for (auto &event : events_) {
+      event = platform::NpuEventResourcePool::Instance().New(dev_idx);
+    }
+    stream_ = platform::NpuStreamResourcePool::Instance().New(dev_idx);
+  }
+#endif
   is_same_place_ = false;
   cpu_buffer_.resize(buffer_size);
   cuda_buffer_.resize(buffer_size);
+  npu_buffer_.resize(buffer_size);
   ReadTillBufferFullAsync();
 }
 
@@ -196,7 +212,59 @@ void BufferedReader::ReadAsync(size_t i) {
 #endif
       }
     }
-#endif  // @} End Group GPU Place
+#endif
+
+#ifdef PADDLE_WITH_ASCEND_CL
+    if (platform::is_npu_place(place_)) {
+      TensorVec &npu = npu_buffer_[i];
+      if (npu.empty()) {
+        npu.resize(cpu.size());
+      } else {
+        PADDLE_ENFORCE_EQ(
+            npu.size(), cpu.size(),
+            platform::errors::InvalidArgument(
+                "Input tensor number on NPU and CPU devices are not matched. "
+                "The number on NPU is %d, on CPU is %d",
+                npu.size(), cpu.size()));
+      }
+
+      std::vector<void *> npu_ptrs;
+      npu_ptrs.reserve(cpu.size());
+      for (size_t i = 0; i < cpu.size(); ++i) {
+        npu[i].Resize(cpu[i].dims());
+        npu[i].set_layout(cpu[i].layout());
+        npu_ptrs.emplace_back(npu[i].mutable_data(place_, cpu[i].type()));
+      }
+
+      platform::SetNPUDeviceId(
+          BOOST_GET_CONST(platform::NPUPlace, place_).device);
+      PADDLE_ENFORCE_NPU_SUCCESS(
+          aclrtRecordEvent(events_[i].get(), compute_stream_));
+      PADDLE_ENFORCE_NPU_SUCCESS(
+          aclrtStreamWaitEvent(stream_.get(), events_[i].get()));
+
+      platform::RecordEvent record_event("BufferedReader:MemoryCopy");
+      for (size_t i = 0; i < cpu.size(); ++i) {
+        auto cpu_place = cpu[i].place();
+        auto cpu_ptr = cpu[i].data<void>();
+        auto npu_ptr = npu_ptrs[i];
+        auto size =
+            cpu[i].numel() * paddle::framework::SizeOfType(cpu[i].type());
+        if ((platform::is_npu_place(cpu_place))) {
+          memory::Copy(BOOST_GET_CONST(platform::NPUPlace, place_), npu_ptr,
+                       BOOST_GET_CONST(platform::NPUPlace, cpu_place), cpu_ptr,
+                       size, stream_.get());
+        } else {
+          memory::Copy(BOOST_GET_CONST(platform::NPUPlace, place_), npu_ptr,
+                       BOOST_GET_CONST(platform::CPUPlace, cpu_place), cpu_ptr,
+                       size, stream_.get());
+          PADDLE_ENFORCE_NPU_SUCCESS(aclrtSynchronizeStream(stream_.get()));
+        }
+        npu[i].set_lod(cpu[i].lod());
+      }
+      PADDLE_ENFORCE_NPU_SUCCESS(aclrtSynchronizeStream(stream_.get()));
+    }
+#endif
     return i;
   }));
 }
@@ -228,9 +296,13 @@ void BufferedReader::ReadNextImpl(std::vector<framework::LoDTensor> *out) {
     return;
   }
 
-  *out = std::move((platform::is_gpu_place(place_) && !is_same_place_)
-                       ? cuda_buffer_[i]
-                       : cpu_buffer_[i]);
+  if (platform::is_gpu_place(place_) && !is_same_place_) {
+    *out = std::move(cuda_buffer_[i]);
+  } else if (platform::is_npu_place(place_) && !is_same_place_) {
+    *out = std::move(npu_buffer_[i]);
+  } else {
+    *out = std::move(cpu_buffer_[i]);
+  }
 
   // Do not push current position into ReadAsync. Push the previous position
   // Since all computation in fluid are async, change the data of
diff --git a/paddle/fluid/operators/reader/buffered_reader.h b/paddle/fluid/operators/reader/buffered_reader.h
index fbc46aceb8130..9f7b0e753281e 100644
--- a/paddle/fluid/operators/reader/buffered_reader.h
+++ b/paddle/fluid/operators/reader/buffered_reader.h
@@ -25,7 +25,10 @@
 #include "paddle/fluid/platform/cuda_resource_pool.h"
 #include "paddle/fluid/platform/gpu_info.h"
 #endif
-
+#ifdef PADDLE_WITH_ASCEND_CL
+#include "paddle/fluid/platform/npu_info.h"
+#include "paddle/fluid/platform/npu_resource_pool.h"
+#endif
 namespace paddle {
 namespace operators {
 namespace reader {
@@ -67,12 +70,19 @@ class BufferedReader : public framework::DecoratedReader {
   bool is_same_place_;
   std::vector<TensorVec> cpu_buffer_;
   std::vector<TensorVec> cuda_buffer_;
+  std::vector<TensorVec> npu_buffer_;
   size_t prev_pos_{-1UL};
 #if defined(PADDLE_WITH_CUDA) || defined(PADDLE_WITH_HIP)
   gpuStream_t compute_stream_;
   std::shared_ptr<platform::CudaStreamObject> stream_;
   std::vector<std::shared_ptr<platform::CudaEventObject>> events_;
 #endif
+
+#ifdef PADDLE_WITH_ASCEND_CL
+  aclrtStream compute_stream_;
+  std::shared_ptr<platform::NpuStreamObject> stream_;
+  std::vector<std::shared_ptr<platform::NpuEventObject>> events_;
+#endif
 };
 
 }  // namespace reader
diff --git a/paddle/fluid/operators/reduce_ops/reduce_any_op_npu_test.cc b/paddle/fluid/operators/reduce_ops/reduce_any_op_npu_test.cc
index d408ff3988f03..1eeeb5e1f8aa1 100644
--- a/paddle/fluid/operators/reduce_ops/reduce_any_op_npu_test.cc
+++ b/paddle/fluid/operators/reduce_ops/reduce_any_op_npu_test.cc
@@ -78,6 +78,6 @@ void Compare(f::Scope* scope, const p::DeviceContext& ctx) {
 
 TEST(reduce_any, NPU) {
   f::Scope scope;
-  p::NPUDeviceContext ctx(p::NPUPlace(0));
-  Compare<bool>(&scope, ctx);
+  auto* ctx = p::DeviceContextPool::Instance().Get(p::NPUPlace(0));
+  Compare<bool>(&scope, *ctx);
 }
diff --git a/paddle/fluid/operators/save_combine_op_npu.cc b/paddle/fluid/operators/save_combine_op_npu.cc
new file mode 100644
index 0000000000000..1fb136a5110db
--- /dev/null
+++ b/paddle/fluid/operators/save_combine_op_npu.cc
@@ -0,0 +1,24 @@
+/* Copyright (c) 2021 PaddlePaddle Authors. All Rights Reserved.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License. */
+
+#include "paddle/fluid/operators/save_combine_op.h"
+
+namespace ops = paddle::operators;
+
+REGISTER_OP_NPU_KERNEL(
+    save_combine,
+    ops::SaveCombineOpKernel<paddle::platform::NPUDeviceContext, float>,
+    ops::SaveCombineOpKernel<paddle::platform::NPUDeviceContext, double>,
+    ops::SaveCombineOpKernel<paddle::platform::NPUDeviceContext, int>,
+    ops::SaveCombineOpKernel<paddle::platform::NPUDeviceContext, int64_t>);
diff --git a/paddle/fluid/operators/save_op_npu.cc b/paddle/fluid/operators/save_op_npu.cc
new file mode 100644
index 0000000000000..90db1a0bb85d6
--- /dev/null
+++ b/paddle/fluid/operators/save_op_npu.cc
@@ -0,0 +1,28 @@
+/* Copyright (c) 2021 PaddlePaddle Authors. All Rights Reserved.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License. */
+
+#include "paddle/fluid/operators/save_op.h"
+#include "paddle/fluid/platform/float16.h"
+
+namespace ops = paddle::operators;
+
+REGISTER_OP_NPU_KERNEL(
+    save, ops::SaveOpKernel<paddle::platform::NPUDeviceContext, float>,
+    ops::SaveOpKernel<paddle::platform::NPUDeviceContext, double>,
+    ops::SaveOpKernel<paddle::platform::NPUDeviceContext, int>,
+    ops::SaveOpKernel<paddle::platform::NPUDeviceContext, uint8_t>,
+    ops::SaveOpKernel<paddle::platform::NPUDeviceContext, int8_t>,
+    ops::SaveOpKernel<paddle::platform::NPUDeviceContext, int64_t>,
+    ops::SaveOpKernel<paddle::platform::NPUDeviceContext,
+                      paddle::platform::float16>);
diff --git a/paddle/fluid/operators/softmax_op_npu_test.cc b/paddle/fluid/operators/softmax_op_npu_test.cc
index f06f59f3b4e00..d20b3ac04bf95 100644
--- a/paddle/fluid/operators/softmax_op_npu_test.cc
+++ b/paddle/fluid/operators/softmax_op_npu_test.cc
@@ -159,12 +159,12 @@ void CompareGrad(f::Scope* scope, const p::DeviceContext& ctx) {
 
 TEST(softmax, NPU_fp32) {
   f::Scope scope;
-  p::NPUDeviceContext ctx(p::NPUPlace(0));
-  Compare<float>(&scope, ctx);
+  auto* ctx = p::DeviceContextPool::Instance().Get(p::NPUPlace(0));
+  Compare<float>(&scope, *ctx);
 }
 
 TEST(softmax_grad, NPU_fp32) {
   f::Scope scope;
-  p::NPUDeviceContext ctx(p::NPUPlace(0));
-  CompareGrad<float>(&scope, ctx);
+  auto* ctx = p::DeviceContextPool::Instance().Get(p::NPUPlace(0));
+  CompareGrad<float>(&scope, *ctx);
 }
diff --git a/paddle/fluid/operators/softmax_with_cross_entropy_op_npu.cc b/paddle/fluid/operators/softmax_with_cross_entropy_op_npu.cc
index c777a02f96bd9..a34946315f5a8 100644
--- a/paddle/fluid/operators/softmax_with_cross_entropy_op_npu.cc
+++ b/paddle/fluid/operators/softmax_with_cross_entropy_op_npu.cc
@@ -67,12 +67,10 @@ class SoftmaxWithCrossEntropyNPUKernel : public framework::OpKernel<T> {
     // on and off
     Tensor on_tensor(framework::proto::VarType::INT32);
     on_tensor.mutable_data<int>({1}, ctx.GetPlace());
-    TensorFromVector(std::vector<int>{static_cast<int>(1)},
-                     ctx.device_context(), &on_tensor);
+    FillNpuTensorWithConstant<int>(&on_tensor, static_cast<int>(1));
     Tensor off_tensor(framework::proto::VarType::INT32);
     off_tensor.mutable_data<int>({1}, ctx.GetPlace());
-    TensorFromVector(std::vector<int>{static_cast<int>(0)},
-                     ctx.device_context(), &off_tensor);
+    FillNpuTensorWithConstant<int>(&off_tensor, static_cast<int>(0));
 
     // one_hot
     Tensor tmp_onehot(on_tensor.type());
@@ -142,12 +140,10 @@ class SoftmaxWithCrossEntropyGradNPUKernel : public framework::OpKernel<T> {
     // on and off
     Tensor on_tensor(framework::proto::VarType::INT32);
     on_tensor.mutable_data<int>({1}, ctx.GetPlace());
-    TensorFromVector(std::vector<int>{static_cast<int>(1)},
-                     ctx.device_context(), &on_tensor);
+    FillNpuTensorWithConstant<int>(&on_tensor, static_cast<int>(1));
     Tensor off_tensor(framework::proto::VarType::INT32);
     off_tensor.mutable_data<int>({1}, ctx.GetPlace());
-    TensorFromVector(std::vector<int>{static_cast<int>(0)},
-                     ctx.device_context(), &off_tensor);
+    FillNpuTensorWithConstant<int>(&off_tensor, static_cast<int>(0));
 
     // one_hot
     Tensor tmp_onehot(on_tensor.type());
diff --git a/paddle/fluid/operators/squeeze_op_npu_test.cc b/paddle/fluid/operators/squeeze_op_npu_test.cc
index 22dc81cbd79e0..1de7ca8c7bdbf 100644
--- a/paddle/fluid/operators/squeeze_op_npu_test.cc
+++ b/paddle/fluid/operators/squeeze_op_npu_test.cc
@@ -85,6 +85,6 @@ void Compare(f::Scope* scope, const p::DeviceContext& ctx) {
 
 TEST(squeeze, NPU_fp32) {
   f::Scope scope;
-  p::NPUDeviceContext ctx(p::NPUPlace(0));
-  Compare<float>(&scope, ctx);
+  auto* ctx = p::DeviceContextPool::Instance().Get(p::NPUPlace(0));
+  Compare<float>(&scope, *ctx);
 }
diff --git a/paddle/fluid/operators/tensor_formatter.cc b/paddle/fluid/operators/tensor_formatter.cc
index 046ae90ec7c6e..f1b64f042c3c0 100644
--- a/paddle/fluid/operators/tensor_formatter.cc
+++ b/paddle/fluid/operators/tensor_formatter.cc
@@ -125,6 +125,11 @@ void TensorFormatter::FormatData(const framework::LoDTensor& print_tensor,
     framework::LoDTensor cpu_tensor;
     platform::CPUPlace cpu_place;
     TensorCopy(print_tensor, cpu_place, &cpu_tensor);
+#ifdef PADDLE_WITH_ASCEND_CL
+    if (platform::is_npu_place(print_tensor.place())) {
+      platform::DeviceContextPool::Instance().Get(print_tensor.place())->Wait();
+    }
+#endif
     data = cpu_tensor.data<T>();
   }
 
diff --git a/paddle/fluid/operators/transpose_op_npu_test.cc b/paddle/fluid/operators/transpose_op_npu_test.cc
index 36f7a69535851..f6712814e1e3b 100644
--- a/paddle/fluid/operators/transpose_op_npu_test.cc
+++ b/paddle/fluid/operators/transpose_op_npu_test.cc
@@ -126,12 +126,12 @@ void CompareGrad(f::Scope* scope, const p::DeviceContext& ctx) {
 
 TEST(transpose2, NPU_fp32) {
   f::Scope scope;
-  p::NPUDeviceContext ctx(p::NPUPlace(0));
-  Compare<float>(&scope, ctx);
+  auto* ctx = p::DeviceContextPool::Instance().Get(p::NPUPlace(0));
+  Compare<float>(&scope, *ctx);
 }
 
 TEST(transpose2_grad, NPU_fp32) {
   f::Scope scope;
-  p::NPUDeviceContext ctx(p::NPUPlace(0));
-  CompareGrad<float>(&scope, ctx);
+  auto* ctx = p::DeviceContextPool::Instance().Get(p::NPUPlace(0));
+  CompareGrad<float>(&scope, *ctx);
 }
diff --git a/paddle/fluid/operators/truncated_gaussian_random_op_npu.cc b/paddle/fluid/operators/truncated_gaussian_random_op_npu.cc
index 4253187fdde74..7f3190d9112c6 100644
--- a/paddle/fluid/operators/truncated_gaussian_random_op_npu.cc
+++ b/paddle/fluid/operators/truncated_gaussian_random_op_npu.cc
@@ -35,28 +35,24 @@ class TruncatedGaussianRandomNPUKernel : public framework::OpKernel<T> {
     float mean = ctx.Attr<float>("mean");
     Tensor mean_tensor(framework::proto::VarType::FP32);
     mean_tensor.mutable_data<float>({1}, ctx.GetPlace());
-    TensorFromVector(std::vector<float>{mean}, ctx.device_context(),
-                     &mean_tensor);
+    FillNpuTensorWithConstant<float>(&mean_tensor, mean);
 
     float std = ctx.Attr<float>("std");
     Tensor std_tensor(framework::proto::VarType::FP32);
     std_tensor.mutable_data<float>({1}, ctx.GetPlace());
-    TensorFromVector(std::vector<float>{std}, ctx.device_context(),
-                     &std_tensor);
+    FillNpuTensorWithConstant<float>(&std_tensor, std);
 
     int32_t seed_var = ctx.Attr<int32_t>("seed");
 
     Tensor min_tensor(framework::proto::VarType::FP32);
     min_tensor.mutable_data<float>({1}, ctx.GetPlace());
     float min_value = mean - std * 2.0;
-    TensorFromVector(std::vector<float>{min_value}, ctx.device_context(),
-                     &min_tensor);
+    FillNpuTensorWithConstant<float>(&min_tensor, min_value);
 
     Tensor max_tensor(framework::proto::VarType::FP32);
     max_tensor.mutable_data<float>({1}, ctx.GetPlace());
     float max_value = mean + std * 2.0;
-    TensorFromVector(std::vector<float>{max_value}, ctx.device_context(),
-                     &max_tensor);
+    FillNpuTensorWithConstant<float>(&max_tensor, max_value);
 
     auto* out = ctx.Output<framework::Tensor>("Out");
     out->mutable_data<T>(ctx.GetPlace());
diff --git a/paddle/fluid/operators/unsqueeze_op_npu_test.cc b/paddle/fluid/operators/unsqueeze_op_npu_test.cc
index 9b4485047f05c..a145c914a8621 100644
--- a/paddle/fluid/operators/unsqueeze_op_npu_test.cc
+++ b/paddle/fluid/operators/unsqueeze_op_npu_test.cc
@@ -85,6 +85,6 @@ void Compare(f::Scope* scope, const p::DeviceContext& ctx) {
 
 TEST(unsqueeze, NPU_fp32) {
   f::Scope scope;
-  p::NPUDeviceContext ctx(p::NPUPlace(0));
-  Compare<float>(&scope, ctx);
+  auto* ctx = p::DeviceContextPool::Instance().Get(p::NPUPlace(0));
+  Compare<float>(&scope, *ctx);
 }
diff --git a/paddle/fluid/platform/CMakeLists.txt b/paddle/fluid/platform/CMakeLists.txt
index 584dbd4756aa0..1d3fc14cdd16d 100644
--- a/paddle/fluid/platform/CMakeLists.txt
+++ b/paddle/fluid/platform/CMakeLists.txt
@@ -143,6 +143,11 @@ if(WITH_GPU OR WITH_ROCM)
     target_link_libraries(device_context cuda_resource_pool)
 endif()
 
+if(WITH_ASCEND_CL)
+    cc_library(npu_resource_pool SRCS npu_resource_pool.cc DEPS npu_info)
+    target_link_libraries(device_context npu_resource_pool)
+endif()
+
 cc_test(init_test SRCS init_test.cc DEPS device_context)
 
 if(WITH_GPU)
diff --git a/paddle/fluid/platform/device_context.cc b/paddle/fluid/platform/device_context.cc
index a0ade3898c336..50bb64d557444 100644
--- a/paddle/fluid/platform/device_context.cc
+++ b/paddle/fluid/platform/device_context.cc
@@ -16,8 +16,8 @@ limitations under the License. */
 #include "paddle/fluid/memory/allocation/cuda_device_context_allocator.h"
 #include "paddle/fluid/platform/cuda_device_guard.h"
 #endif
-
 #include "glog/logging.h"
+#include "paddle/fluid/platform/profiler.h"
 
 namespace paddle {
 namespace memory {
@@ -254,8 +254,9 @@ NPUDeviceContext::~NPUDeviceContext() {
 }
 
 void NPUDeviceContext::Wait() const {
-  NPUDeviceGuard guard(place_.device);
-  PADDLE_ENFORCE_NPU_SUCCESS(aclrtSynchronizeDevice());
+  platform::RecordEvent record_event("NPUDeviceContext/wait");
+  VLOG(4) << "NPU context(" << this << ")  Wait";
+  stream_->Wait();
 }
 
 aclrtStream NPUDeviceContext::stream() const { return stream_->raw_stream(); }
diff --git a/paddle/fluid/platform/device_context.h b/paddle/fluid/platform/device_context.h
index 2578c9b6cdea5..3d72727c8da8e 100644
--- a/paddle/fluid/platform/device_context.h
+++ b/paddle/fluid/platform/device_context.h
@@ -197,6 +197,13 @@ class NPUDeviceContext : public DeviceContext {
   void set_hccl_context(HCCLContext_t context) { hccl_context_ = context; }
 #endif
 
+  template <typename Callback>
+  void AddStreamCallback(Callback&& callback) const {
+    return stream_->AddCallback(callback);
+  }
+
+  void WaitStreamCallback() const { return stream_->WaitCallback(); }
+
  private:
   NPUPlace place_;
   aclrtContext context_;
diff --git a/paddle/fluid/platform/device_tracer.cc b/paddle/fluid/platform/device_tracer.cc
index 717b5ce83c6c9..724a9b8483cde 100644
--- a/paddle/fluid/platform/device_tracer.cc
+++ b/paddle/fluid/platform/device_tracer.cc
@@ -587,6 +587,8 @@ class DeviceTracerImpl : public DeviceTracer {
               BOOST_GET_CONST(platform::CUDAPlace, r.place).GetDeviceId());
         } else if (platform::is_cuda_pinned_place(r.place)) {
           event->set_place(proto::MemEvent::CUDAPinnedPlace);
+        } else if (platform::is_npu_place(r.place)) {
+          event->set_place(proto::MemEvent::NPUPlace);
         } else {
           PADDLE_THROW(platform::errors::Unimplemented(
               "The current place is not supported."));
diff --git a/paddle/fluid/platform/npu_profiler.h b/paddle/fluid/platform/npu_profiler.h
new file mode 100644
index 0000000000000..a7b674d0d0c3f
--- /dev/null
+++ b/paddle/fluid/platform/npu_profiler.h
@@ -0,0 +1,102 @@
+/* Copyright (c) 2021 PaddlePaddle Authors. All Rights Reserved.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License. */
+
+#pragma once
+
+#include <string>
+#include <vector>
+
+#include "acl/acl_prof.h"
+#include "paddle/fluid/platform/enforce.h"
+
+namespace paddle {
+namespace platform {
+
+#ifdef PADDLE_WITH_ASCEND_STRING
+// For CANN 20.2+
+// ACL_AICORE_ARITHMETIC_UTILIZATION = 0, record arithmetic stats
+// ACL_AICORE_PIPE_UTILIZATION = 1, record pipeline
+// ACL_AICORE_MEMORY_BANDWIDTH = 2, record memory
+// ACL_AICORE_L0B_AND_WIDTH = 3, recore internal memory
+// ACL_AICORE_RESOURCE_CONFLICT_RATIO = 5, record pipeline ratio
+constexpr aclprofAicoreMetrics default_metrics =
+    ACL_AICORE_ARITHMETIC_UTILIZATION;
+#else
+// For CANN 20.1
+// ACL_AICORE_ARITHMATIC_THROUGHPUT = 0, record arithmetic stats
+// ACL_AICORE_PIPELINE = 1, record pipeline
+// ACL_AICORE_SYNCHRONIZATION = 2, record sync
+// ACL_AICORE_MEMORY = 3, recore memory
+// ACL_AICORE_INTERNAL_MEMORY = 4, recore internal memory
+// ACL_AICORE_STALL = 5, record pipeline ratio
+constexpr aclprofAicoreMetrics default_metrics =
+    ACL_AICORE_ARITHMATIC_THROUGHPUT;
+#endif
+
+// ACL_PROF_ACL_API, record ACL API stats
+// ACL_PROF_TASK_TIME, record AI core stats
+// ACL_PROF_AICORE_METRICS, must include
+// ACL_PROF_AICPU_TRACE, recore AICPU, not supported yet
+constexpr uint64_t default_type =
+    ACL_PROF_ACL_API | ACL_PROF_AICORE_METRICS | ACL_PROF_TASK_TIME;
+
+aclprofConfig *NPUProfilerCreateConfig(
+    std::vector<uint32_t> devices = {},
+    aclprofAicoreMetrics metrics = default_metrics, uint64_t c = default_type,
+    aclprofAicoreEvents *events = nullptr) {
+  if (devices.size() == 0) {
+    int device_id = GetCurrentNPUDeviceId();
+    devices.emplace_back(device_id);
+  }
+  aclprofConfig *config =
+      aclprofCreateConfig(devices.data(), devices.size(), metrics, events, c);
+  PADDLE_ENFORCE_NOT_NULL(config, paddle::platform::errors::External(
+                                      "Failed to create prof config for NPU"));
+  return config;
+}
+
+void NPUProfilerDestroyConfig(const aclprofConfig *config) {
+  PADDLE_ENFORCE_NPU_SUCCESS(aclprofDestroyConfig(config));
+}
+
+void NPUProfilerInit(std::string output_path) {
+  PADDLE_ENFORCE_NPU_SUCCESS(
+      aclprofInit(output_path.c_str(), output_path.size()));
+}
+
+void NPUProfilerStart(const aclprofConfig *config) {
+  if (config == nullptr) {
+    // NOTE(zhiqiu): support single device by default.
+    int device_id = GetCurrentNPUDeviceId();
+    std::vector<uint32_t> devices = {static_cast<uint32_t>(device_id)};
+    config = NPUProfilerCreateConfig(devices);
+  }
+  PADDLE_ENFORCE_NPU_SUCCESS(aclprofStart(config));
+}
+
+void NPUProfilerStop(const aclprofConfig *config) {
+  PADDLE_ENFORCE_NPU_SUCCESS(aclprofStop(config));
+  NPUProfilerDestroyConfig(config);
+}
+
+void NPUProfilerFinalize() { PADDLE_ENFORCE_NPU_SUCCESS(aclprofFinalize()); }
+
+struct NPUProfConfigWrapper {
+  aclprofConfig *p_;
+  explicit NPUProfConfigWrapper(aclprofConfig *p) : p_(p) {}
+  aclprofConfig *ptr() { return p_; }
+};
+
+}  // namespace platform
+}  // namespace paddle
diff --git a/paddle/fluid/platform/npu_resource_pool.cc b/paddle/fluid/platform/npu_resource_pool.cc
new file mode 100644
index 0000000000000..22b9e8f03971e
--- /dev/null
+++ b/paddle/fluid/platform/npu_resource_pool.cc
@@ -0,0 +1,101 @@
+// Copyright (c) 2021 PaddlePaddle Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#ifdef PADDLE_WITH_ASCEND_CL
+#include "paddle/fluid/platform/npu_resource_pool.h"
+#include "paddle/fluid/platform/npu_info.h"
+
+namespace paddle {
+namespace platform {
+
+NpuStreamResourcePool::NpuStreamResourcePool() {
+  int dev_cnt = platform::GetNPUDeviceCount();
+  pool_.reserve(dev_cnt);
+  for (int dev_idx = 0; dev_idx < dev_cnt; ++dev_idx) {
+    auto creator = [dev_idx] {
+      platform::SetNPUDeviceId(dev_idx);
+      aclrtStream stream;
+      PADDLE_ENFORCE_NPU_SUCCESS(aclrtCreateStream(&stream));
+      return stream;
+    };
+
+    auto deleter = [dev_idx](aclrtStream stream) {
+      platform::SetNPUDeviceId(dev_idx);
+      PADDLE_ENFORCE_NPU_SUCCESS(aclrtDestroyStream(stream));
+    };
+
+    pool_.emplace_back(ResourcePool<NpuStreamObject>::Create(creator, deleter));
+  }
+}
+
+NpuStreamResourcePool& NpuStreamResourcePool::Instance() {
+  static NpuStreamResourcePool pool;
+  return pool;
+}
+
+std::shared_ptr<NpuStreamObject> NpuStreamResourcePool::New(int dev_idx) {
+  PADDLE_ENFORCE_GE(
+      dev_idx, 0,
+      platform::errors::InvalidArgument(
+          "The dev_idx should be not less than 0, but got %d.", dev_idx));
+  PADDLE_ENFORCE_LT(
+      dev_idx, pool_.size(),
+      platform::errors::OutOfRange(
+          "The dev_idx should be less than device count %d, but got %d.",
+          pool_.size(), dev_idx));
+  return pool_[dev_idx]->New();
+}
+
+NpuEventResourcePool::NpuEventResourcePool() {
+  int dev_cnt = platform::GetNPUDeviceCount();
+  pool_.reserve(dev_cnt);
+  for (int dev_idx = 0; dev_idx < dev_cnt; ++dev_idx) {
+    auto creator = [dev_idx] {
+      platform::SetNPUDeviceId(dev_idx);
+      aclrtEvent event;
+      PADDLE_ENFORCE_NPU_SUCCESS(aclrtCreateEvent(&event));
+      return event;
+    };
+
+    auto deleter = [dev_idx](aclrtEvent event) {
+      platform::SetNPUDeviceId(dev_idx);
+      PADDLE_ENFORCE_NPU_SUCCESS(aclrtDestroyEvent(event));
+    };
+
+    pool_.emplace_back(ResourcePool<NpuEventObject>::Create(creator, deleter));
+  }
+}
+
+NpuEventResourcePool& NpuEventResourcePool::Instance() {
+  static NpuEventResourcePool pool;
+  return pool;
+}
+
+std::shared_ptr<NpuEventObject> NpuEventResourcePool::New(int dev_idx) {
+  PADDLE_ENFORCE_GE(
+      dev_idx, 0,
+      platform::errors::InvalidArgument(
+          "The dev_idx should be not less than 0, but got %d.", dev_idx));
+  PADDLE_ENFORCE_LT(
+      dev_idx, pool_.size(),
+      platform::errors::OutOfRange(
+          "The dev_idx should be less than device count %d, but got %d.",
+          pool_.size(), dev_idx));
+  return pool_[dev_idx]->New();
+}
+
+}  // namespace platform
+}  // namespace paddle
+
+#endif
diff --git a/paddle/fluid/platform/npu_resource_pool.h b/paddle/fluid/platform/npu_resource_pool.h
new file mode 100644
index 0000000000000..bfd6ec7f94112
--- /dev/null
+++ b/paddle/fluid/platform/npu_resource_pool.h
@@ -0,0 +1,64 @@
+// Copyright (c) 2021 PaddlePaddle Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#pragma once
+
+#ifdef PADDLE_WITH_ASCEND_CL
+#include <memory>
+#include <type_traits>
+#include <vector>
+
+#include "acl/acl.h"
+#include "paddle/fluid/platform/resource_pool.h"
+
+namespace paddle {
+namespace platform {
+
+using NpuStreamObject = std::remove_pointer<aclrtStream>::type;
+using NpuEventObject = std::remove_pointer<aclrtEvent>::type;
+
+class NpuStreamResourcePool {
+ public:
+  std::shared_ptr<NpuStreamObject> New(int dev_idx);
+
+  static NpuStreamResourcePool &Instance();
+
+ private:
+  NpuStreamResourcePool();
+
+  DISABLE_COPY_AND_ASSIGN(NpuStreamResourcePool);
+
+ private:
+  std::vector<std::shared_ptr<ResourcePool<NpuStreamObject>>> pool_;
+};
+
+class NpuEventResourcePool {
+ public:
+  std::shared_ptr<NpuEventObject> New(int dev_idx);
+
+  static NpuEventResourcePool &Instance();
+
+ private:
+  NpuEventResourcePool();
+
+  DISABLE_COPY_AND_ASSIGN(NpuEventResourcePool);
+
+ private:
+  std::vector<std::shared_ptr<ResourcePool<NpuEventObject>>> pool_;
+};
+
+}  // namespace platform
+}  // namespace paddle
+
+#endif
diff --git a/paddle/fluid/platform/profiler.proto b/paddle/fluid/platform/profiler.proto
index cfa3c6906f83f..31193534a00be 100644
--- a/paddle/fluid/platform/profiler.proto
+++ b/paddle/fluid/platform/profiler.proto
@@ -21,6 +21,7 @@ message Event {
   enum EventType {
     CPU = 0;
     GPUKernel = 1;
+    NPUKernel = 2;
   }
   optional EventType type = 8;
   optional string name = 1;
@@ -39,6 +40,8 @@ message MemEvent {
     CUDAPlace = 0;
     CPUPlace = 1;
     CUDAPinnedPlace = 2;
+    XPUPlace = 3;
+    NPUPlace = 4;
   }
   optional uint64 start_ns = 1;
   optional uint64 end_ns = 2;
diff --git a/paddle/fluid/platform/stream_callback_manager.cc b/paddle/fluid/platform/stream_callback_manager.cc
index 287c8fc37e005..9f4ec9b3ce0d4 100644
--- a/paddle/fluid/platform/stream_callback_manager.cc
+++ b/paddle/fluid/platform/stream_callback_manager.cc
@@ -71,6 +71,8 @@ void StreamCallbackManager<Stream>::AddCallback(
 #endif
 
 #if PADDLE_WITH_ASCEND_CL
+  VLOG(3) << "aclrtLaunchCallback at stream: " << stream_;
+  // TODO(zhiqiu): failed to call aclrtLaunchCallback
   PADDLE_ENFORCE_NPU_SUCCESS(aclrtLaunchCallback(StreamCallbackFunc, func,
                                                  ACL_CALLBACK_BLOCK, stream_));
 #endif
diff --git a/paddle/fluid/pybind/pybind.cc b/paddle/fluid/pybind/pybind.cc
index 39a78d86976ae..038bcc7f85099 100644
--- a/paddle/fluid/pybind/pybind.cc
+++ b/paddle/fluid/pybind/pybind.cc
@@ -109,6 +109,7 @@ limitations under the License. */
 
 #ifdef PADDLE_WITH_ASCEND_CL
 #include "paddle/fluid/platform/npu_info.h"
+#include "paddle/fluid/platform/npu_profiler.h"
 #endif
 
 #ifdef PADDLE_WITH_XPU
@@ -581,11 +582,6 @@ PYBIND11_MODULE(core_noavx, m) {
         make_ddim(x_dim), make_ddim(y_dim), -1));
   });
 
-#ifdef PADDLE_WITH_ASCEND_CL
-  m.def("_npu_finalize",
-        []() { platform::AclInstance::Instance().Finalize(); });
-#endif
-
   m.def(
       "_append_python_callable_object_and_return_id",
       [](py::object py_obj) -> size_t {
@@ -1744,7 +1740,7 @@ All parameter, weight, gradient are variables in Paddle.
                  "Cannot use NPU because you have installed CPU/GPU version "
                  "PaddlePaddle.\n"
                  "If you want to use NPU, please try to install NPU version "
-                 "PaddlePaddle by: pip install paddlepaddle-xpu\n"
+                 "PaddlePaddle by: pip install paddlepaddle-npu\n"
                  "If you only have CPU, please change NPUPlace(%d) to be "
                  "CPUPlace().\n",
                  dev_id);
@@ -2180,6 +2176,31 @@ All parameter, weight, gradient are variables in Paddle.
 #endif
 #endif
 
+#ifdef PADDLE_WITH_ASCEND_CL
+  m.def("get_npu_device_count", platform::GetNPUDeviceCount);
+  m.def("_npu_finalize", []() {
+    platform::AclInstance::Instance().Finalize();
+  });  // private interface
+
+  py::class_<platform::NPUProfConfigWrapper>(m, "NPUProfConfigWrapper");
+
+  m.def("npu_prof_init", platform::NPUProfilerInit);
+  m.def("npu_prof_start", [](platform::NPUProfConfigWrapper c) {
+    platform::NPUProfilerStart(c.ptr());
+  });
+  m.def("npu_prof_stop", [](platform::NPUProfConfigWrapper c) {
+    platform::NPUProfilerStop(c.ptr());
+  });
+  m.def("npu_prof_finalize", platform::NPUProfilerFinalize);
+  m.def("npu_prof_create_config", []() {
+    return platform::NPUProfConfigWrapper(platform::NPUProfilerCreateConfig());
+  });
+
+  m.def("npu_prof_destropy_config", [](platform::NPUProfConfigWrapper c) {
+    platform::NPUProfilerDestroyConfig(c.ptr());
+  });
+#endif
+
   py::enum_<platform::TracerOption>(m, "TracerOption", py::arithmetic())
       .value("kDefault", platform::TracerOption::kDefault)
       .value("kOpDetail", platform::TracerOption::kOpDetail)
diff --git a/paddle/fluid/pybind/tensor_py.h b/paddle/fluid/pybind/tensor_py.h
index ab1dd8a180b5b..416361d06a996 100644
--- a/paddle/fluid/pybind/tensor_py.h
+++ b/paddle/fluid/pybind/tensor_py.h
@@ -663,6 +663,7 @@ inline py::array TensorToPyArray(const framework::Tensor &tensor,
   }
   bool is_gpu_tensor = platform::is_gpu_place(tensor.place());
   bool is_xpu_tensor = platform::is_xpu_place(tensor.place());
+  bool is_npu_tensor = platform::is_npu_place(tensor.place());
   const auto &tensor_dims = tensor.dims();
   auto tensor_dtype = tensor.type();
   size_t sizeof_dtype = framework::SizeOfType(tensor_dtype);
@@ -681,7 +682,7 @@ inline py::array TensorToPyArray(const framework::Tensor &tensor,
 
   std::string py_dtype_str = details::TensorDTypeToPyDTypeStr(tensor.type());
 
-  if (!is_gpu_tensor && !is_xpu_tensor) {
+  if (!is_gpu_tensor && !is_xpu_tensor && !is_npu_tensor) {
     if (!need_deep_copy) {
       auto base = py::cast(std::move(tensor));
       return py::array(py::dtype(py_dtype_str.c_str()), py_dims, py_strides,
@@ -749,6 +750,34 @@ inline py::array TensorToPyArray(const framework::Tensor &tensor,
     PADDLE_THROW(platform::errors::PermissionDenied(
         "Cannot use CUDAPlace in CPU only version, "
         "Please recompile or reinstall Paddle with CUDA support."));
+#endif
+  } else if (is_npu_tensor) {
+#ifdef PADDLE_WITH_ASCEND_CL
+    py::array py_arr(py::dtype(py_dtype_str.c_str()), py_dims, py_strides);
+    PADDLE_ENFORCE_EQ(py_arr.writeable(), true,
+                      platform::errors::InvalidArgument(
+                          "PyArray is not writable, in which case memory leak "
+                          "or double free would occur"));
+    PADDLE_ENFORCE_EQ(
+        py_arr.owndata(), true,
+        platform::errors::InvalidArgument(
+            "PyArray does not own data, in which case  memory leak "
+            "or double free would occur"));
+
+    size_t copy_bytes = sizeof_dtype * numel;
+    auto p = BOOST_GET_CONST(platform::NPUPlace, tensor.place());
+    platform::DeviceContextPool &pool = platform::DeviceContextPool::Instance();
+    auto &ctx = *pool.Get(tensor.place());
+    paddle::memory::Copy(
+        platform::CPUPlace(), py_arr.mutable_data(), p, tensor_buf_ptr,
+        copy_bytes,
+        reinterpret_cast<const platform::NPUDeviceContext &>(ctx).stream());
+    ctx.Wait();
+    return py_arr;
+#else
+    PADDLE_THROW(platform::errors::PermissionDenied(
+        "Cannot use NPUPlace in CPU/GPU/XPU version, "
+        "Please recompile or reinstall Paddle with NPU support."));
 #endif
   }
   PADDLE_THROW(platform::errors::Unimplemented("Place is not supported"));
diff --git a/python/paddle/fluid/io.py b/python/paddle/fluid/io.py
index cfb4b12599385..768248e136b05 100644
--- a/python/paddle/fluid/io.py
+++ b/python/paddle/fluid/io.py
@@ -2041,6 +2041,10 @@ def set_var(var, ndarray):
             p = paddle.fluid.core.Place()
             p.set_place(t._place())
             place = paddle.fluid.XPUPlace(p.xpu_device_id())
+        elif p.is_npu_place():
+            p = paddle.fluid.core.Place()
+            p.set_place(t._place())
+            place = paddle.fluid.NPUPlace(p.npu_device_id())
         else:
             p = paddle.fluid.core.Place()
             p.set_place(t._place())
@@ -2335,6 +2339,10 @@ def set_program_state(program, state_dict):
                 p = paddle.fluid.core.Place()
                 p.set_place(ten_place)
                 py_place = paddle.fluid.XPUPlace(p.xpu_device_id())
+            elif ten_place.is_npu_place():
+                p = paddle.fluid.core.Place()
+                p.set_place(ten_place)
+                py_place = paddle.fluid.NPUPlace(p.npu_device_id())
 
             ten.set(new_para_np, py_place)
 
diff --git a/python/paddle/fluid/profiler.py b/python/paddle/fluid/profiler.py
index bc7a60af94617..40b0862be0177 100644
--- a/python/paddle/fluid/profiler.py
+++ b/python/paddle/fluid/profiler.py
@@ -106,6 +106,65 @@ def cuda_profiler(output_file, output_mode=None, config=None):
         os.remove(config_file)
 
 
+@signature_safe_contextmanager
+def npu_profiler(output_file, config=None):
+    """
+    The NPU profiler.
+    
+    This fuctions is used to profile NPU program by NPU runtime application
+    programming interface. The profiling result will be written into
+    `output_file`. The users can set set the NPU profiling config by `config` argument. 
+    
+    After getting the profiling result file, users can use 
+    `tools provided by Ascend <https://support.huaweicloud.com/tg-Inference-cann/atlasprofiling_16_0006.html>`_ 
+    to load this output file to visualize results.
+
+    Args:
+        output_file (str) : The output file name, the result will be
+            written into this file. It should be absolute path. 
+        config (list<str>, optional) : NPU profile config. For more details, please
+            refer to `User Guide <https://support.huaweicloud.com/tg-Inference-cann/atlasprofiling_16_0006.html>`_ .
+
+    Examples:
+
+        .. code-block:: python
+
+            import paddle.fluid as fluid
+            import paddle.fluid.profiler as profiler
+            import numpy as np
+
+            epoc = 8
+            dshape = [4, 3, 28, 28]
+            data = fluid.data(name='data', shape=[None, 3, 28, 28], dtype='float32')
+            conv = fluid.layers.conv2d(data, 20, 3, stride=[1, 1], padding=[1, 1])
+
+            place = fluid.NPUPlace(0)
+            exe = fluid.Executor(place)
+            exe.run(fluid.default_startup_program())
+
+            output_file = 'npu.txt'
+            with profiler.npu_profiler(output_file) as npu_prof:
+                for i in range(epoc):
+                    input = np.random.random(dshape).astype('float32')
+                    exe.run(fluid.default_main_program(), feed={'data': input})
+            # then use  NPU profiler tools to load this output file
+            # to visualize results.
+    """
+    # TODO: support config in python.
+    if not config:
+        config = core.npu_prof_create_config()
+
+    core.npu_prof_init(output_file)
+    # Enables profiler collection by the active NPU profiling tool.
+    core.npu_prof_start(config)
+    try:
+        yield
+    # Disables profiler collection.
+    finally:
+        core.npu_prof_stop(config)
+        core.npu_prof_finalize()
+
+
 def reset_profiler():
     """
     Clear the previous time record. This interface does not work for
diff --git a/python/paddle/fluid/tests/unittests/npu/test_amp_check_finite_and_scale_op_npu.py b/python/paddle/fluid/tests/unittests/npu/test_amp_check_finite_and_scale_op_npu.py
index 4cda0ceeccf9c..ac80ea4c62cbf 100644
--- a/python/paddle/fluid/tests/unittests/npu/test_amp_check_finite_and_scale_op_npu.py
+++ b/python/paddle/fluid/tests/unittests/npu/test_amp_check_finite_and_scale_op_npu.py
@@ -14,6 +14,8 @@
 
 import unittest
 import numpy as np
+import sys
+sys.path.append("..")
 from op_test import OpTest, skip_check_grad_ci
 import paddle
 import paddle.fluid as fluid
diff --git a/python/paddle/fluid/tests/unittests/npu/test_cast_op_npu.py b/python/paddle/fluid/tests/unittests/npu/test_cast_op_npu.py
index b39771e29c7b4..ae48866b7b969 100755
--- a/python/paddle/fluid/tests/unittests/npu/test_cast_op_npu.py
+++ b/python/paddle/fluid/tests/unittests/npu/test_cast_op_npu.py
@@ -73,5 +73,27 @@ def test_check_output(self):
         self.check_output_with_place(self.place, check_dygraph=False, atol=1e-3)
 
 
+class TestCast3(OpTest):
+    def setUp(self):
+        self.set_npu()
+        self.op_type = "cast"
+        self.place = paddle.NPUPlace(0)
+
+        ipt = np.random.random(size=[10, 10]) + 1
+        self.inputs = {'X': ipt.astype('int32')}
+        self.outputs = {'Out': ipt.astype('int32')}
+
+        self.attrs = {
+            'in_dtype': int(core.VarDesc.VarType.INT32),
+            'out_dtype': int(core.VarDesc.VarType.INT32)
+        }
+
+    def set_npu(self):
+        self.__class__.use_npu = True
+
+    def test_check_output(self):
+        self.check_output_with_place(self.place, check_dygraph=False, atol=1e-3)
+
+
 if __name__ == '__main__':
     unittest.main()
diff --git a/python/paddle/fluid/tests/unittests/npu/test_increment_op_npu.py b/python/paddle/fluid/tests/unittests/npu/test_increment_op_npu.py
index a102f3d9ce185..3e2e8f944b84c 100644
--- a/python/paddle/fluid/tests/unittests/npu/test_increment_op_npu.py
+++ b/python/paddle/fluid/tests/unittests/npu/test_increment_op_npu.py
@@ -26,7 +26,7 @@
 paddle.enable_static()
 SEED = 2021
 
-NPUPlace = 5
+NPUPlace = 0
 
 
 @unittest.skipIf(not paddle.is_compiled_with_npu(),
diff --git a/python/paddle/fluid/tests/unittests/npu/test_lookup_table_v2_op_npu.py b/python/paddle/fluid/tests/unittests/npu/test_lookup_table_v2_op_npu.py
index 400ddd9d4aab0..2463ddb7137ac 100644
--- a/python/paddle/fluid/tests/unittests/npu/test_lookup_table_v2_op_npu.py
+++ b/python/paddle/fluid/tests/unittests/npu/test_lookup_table_v2_op_npu.py
@@ -41,7 +41,7 @@ def setUp(self):
         vocab = 10
         dim = 20
         w = np.ones([vocab, dim]).astype(self.dtype)
-        x = np.random.randint(0, vocab, size=(bsz, seqlen)).astype(np.int64)
+        x = np.random.randint(0, vocab, size=(bsz, seqlen)).astype(np.int32)
         out = np.ones([bsz, seqlen, dim]).astype(self.dtype)
 
         self.inputs = {
diff --git a/python/paddle/fluid/tests/unittests/npu/test_memcpy_op_npu.py b/python/paddle/fluid/tests/unittests/npu/test_memcpy_op_npu.py
new file mode 100755
index 0000000000000..63c4fb8e5885e
--- /dev/null
+++ b/python/paddle/fluid/tests/unittests/npu/test_memcpy_op_npu.py
@@ -0,0 +1,104 @@
+#  Copyright (c) 2021 PaddlePaddle Authors. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from __future__ import print_function
+
+import numpy as np
+import unittest
+import sys
+sys.path.append("..")
+from op_test import OpTest
+import paddle
+import paddle.fluid as fluid
+import paddle.fluid.core as core
+from paddle.fluid import compiler, Program, program_guard
+
+paddle.enable_static()
+SEED = 2021
+
+
+@unittest.skipIf(not paddle.is_compiled_with_npu(),
+                 "core is not compiled with NPU")
+class TestMemcpy_FillConstant(unittest.TestCase):
+    def get_prog(self):
+        paddle.enable_static()
+        main_program = Program()
+        with program_guard(main_program):
+            cpu_var_name = "tensor@Cpu"
+            npu_var_name = "tensor@Npu"
+            cpu_var = main_program.global_block().create_var(
+                name=cpu_var_name,
+                shape=[10, 10],
+                dtype='float32',
+                persistable=False,
+                stop_gradient=True)
+            npu_var = main_program.global_block().create_var(
+                name=npu_var_name,
+                shape=[10, 10],
+                dtype='float32',
+                persistable=False,
+                stop_gradient=True)
+            main_program.global_block().append_op(
+                type="fill_constant",
+                outputs={"Out": npu_var_name},
+                attrs={
+                    "shape": [10, 10],
+                    "dtype": npu_var.dtype,
+                    "value": 1.0,
+                    "place_type": 1
+                })
+            main_program.global_block().append_op(
+                type="fill_constant",
+                outputs={"Out": cpu_var_name},
+                attrs={
+                    "shape": [10, 10],
+                    "dtype": cpu_var.dtype,
+                    "value": 0.0,
+                    "place_type": 2
+                })
+        return main_program, npu_var, cpu_var
+
+    def test_npu_cpoy_to_cpu(self):
+        main_program, npu_var, cpu_var = self.get_prog()
+        main_program.global_block().append_op(
+            type='memcpy',
+            inputs={'X': npu_var},
+            outputs={'Out': cpu_var},
+            attrs={'dst_place_type': 0})
+        place = fluid.NPUPlace(0)
+        exe = fluid.Executor(place)
+        npu_, cpu_ = exe.run(main_program,
+                             feed={},
+                             fetch_list=[npu_var.name, cpu_var.name])
+        self.assertTrue(np.allclose(npu_, cpu_))
+        self.assertTrue(np.allclose(cpu_, np.ones((10, 10))))
+
+    def test_cpu_cpoy_npu(self):
+        main_program, npu_var, cpu_var = self.get_prog()
+        main_program.global_block().append_op(
+            type='memcpy',
+            inputs={'X': cpu_var},
+            outputs={'Out': npu_var},
+            attrs={'dst_place_type': 4})
+        place = fluid.NPUPlace(0)
+        exe = fluid.Executor(place)
+        npu_, cpu_ = exe.run(main_program,
+                             feed={},
+                             fetch_list=[npu_var.name, cpu_var.name])
+        self.assertTrue(np.allclose(npu_, cpu_))
+        self.assertTrue(np.allclose(npu_, np.zeros((10, 10))))
+
+
+if __name__ == '__main__':
+    unittest.main()
diff --git a/python/paddle/fluid/tests/unittests/npu/test_mul_op_npu.py b/python/paddle/fluid/tests/unittests/npu/test_mul_op_npu.py
index e65a3dac73928..4fcfd33b32f4e 100644
--- a/python/paddle/fluid/tests/unittests/npu/test_mul_op_npu.py
+++ b/python/paddle/fluid/tests/unittests/npu/test_mul_op_npu.py
@@ -248,8 +248,9 @@ def test_npu(self):
         cpu_pred, cpu_loss = self._test(False)
         npu_pred, npu_loss = self._test(True)
 
-        self.assertTrue(np.allclose(npu_pred, cpu_pred))
-        self.assertTrue(np.allclose(npu_loss, cpu_loss))
+        self.assertTrue(np.allclose(
+            npu_pred, cpu_pred, atol=1e-5))  # atol needed on cann 20.3
+        self.assertTrue(np.allclose(npu_loss, cpu_loss, atol=1e-5))
 
 
 @unittest.skipIf(not paddle.is_compiled_with_npu(),
diff --git a/python/paddle/fluid/tests/unittests/npu/test_reduce_any_op_npu.py b/python/paddle/fluid/tests/unittests/npu/test_reduce_any_op_npu.py
index 087256b298088..583a648224d73 100644
--- a/python/paddle/fluid/tests/unittests/npu/test_reduce_any_op_npu.py
+++ b/python/paddle/fluid/tests/unittests/npu/test_reduce_any_op_npu.py
@@ -16,6 +16,8 @@
 
 import unittest
 import numpy as np
+import sys
+sys.path.append("..")
 from op_test import OpTest, skip_check_grad_ci
 import paddle
 import paddle.fluid.core as core
diff --git a/python/paddle/fluid/tests/unittests/npu/test_save_load_npu.py b/python/paddle/fluid/tests/unittests/npu/test_save_load_npu.py
new file mode 100644
index 0000000000000..e7e7fb39c913b
--- /dev/null
+++ b/python/paddle/fluid/tests/unittests/npu/test_save_load_npu.py
@@ -0,0 +1,108 @@
+#   Copyright (c) 2021 PaddlePaddle Authors. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from __future__ import print_function
+
+import unittest
+import sys
+sys.path.append("..")
+import paddle
+import paddle.fluid as fluid
+import paddle.fluid.core as core
+from paddle.nn import Embedding
+import paddle.fluid.framework as framework
+from paddle.fluid.optimizer import Adam
+from paddle.fluid.dygraph.base import to_variable
+from test_imperative_base import new_program_scope
+from paddle.fluid.executor import global_scope
+import numpy as np
+import six
+import pickle
+import os
+import errno
+from test_static_save_load import *
+
+paddle.enable_static()
+
+
+@unittest.skipIf(not paddle.is_compiled_with_npu(),
+                 "core is not compiled with NPU")
+class TestNPUSaveLoadBase(TestSaveLoadBase):
+    def set_place(self):
+        return fluid.CPUPlace() if not core.is_compiled_with_npu(
+        ) else paddle.NPUPlace(0)
+
+
+@unittest.skipIf(not paddle.is_compiled_with_npu(),
+                 "core is not compiled with NPU")
+class TestNPUSaveLoadPartial(TestSaveLoadPartial):
+    def set_place(self):
+        return fluid.CPUPlace() if not core.is_compiled_with_npu(
+        ) else paddle.NPUPlace(0)
+
+
+@unittest.skipIf(not paddle.is_compiled_with_npu(),
+                 "core is not compiled with NPU")
+class TestNPUSaveLoadSetStateDict(TestSaveLoadSetStateDict):
+    def set_place(self):
+        return fluid.CPUPlace() if not core.is_compiled_with_npu(
+        ) else paddle.NPUPlace(0)
+
+
+@unittest.skipIf(not paddle.is_compiled_with_npu(),
+                 "core is not compiled with NPU")
+class TestNPUProgramStatePartial(TestProgramStatePartial):
+    def set_place(self):
+        return fluid.CPUPlace() if not core.is_compiled_with_npu(
+        ) else paddle.NPUPlace(0)
+
+
+@unittest.skipIf(not paddle.is_compiled_with_npu(),
+                 "core is not compiled with NPU")
+class TestNPULoadFromOldInterface(TestLoadFromOldInterface):
+    def set_place(self):
+        return fluid.CPUPlace() if not core.is_compiled_with_npu(
+        ) else paddle.NPUPlace(0)
+
+
+@unittest.skipIf(not paddle.is_compiled_with_npu(),
+                 "core is not compiled with NPU")
+class TestNPULoadFromOldInterfaceSingleFile(TestLoadFromOldInterfaceSingleFile):
+    def set_place(self):
+        return fluid.CPUPlace() if not core.is_compiled_with_npu(
+        ) else paddle.NPUPlace(0)
+
+
+@unittest.skipIf(not paddle.is_compiled_with_npu(),
+                 "core is not compiled with NPU")
+class TestNPUProgramStateOldSave(TestProgramStateOldSave):
+    def setUp(self):
+        self.test_dygraph = False
+
+    def set_place(self):
+        return fluid.CPUPlace() if not core.is_compiled_with_npu(
+        ) else paddle.NPUPlace(0)
+
+
+@unittest.skipIf(not paddle.is_compiled_with_npu(),
+                 "core is not compiled with NPU")
+class TestNPUProgramStateOldSaveSingleModel(TestProgramStateOldSaveSingleModel):
+    def set_place(self):
+        return fluid.CPUPlace() if not core.is_compiled_with_npu(
+        ) else paddle.NPUPlace(0)
+
+
+if __name__ == '__main__':
+    paddle.enable_static()
+    unittest.main()
diff --git a/python/paddle/fluid/tests/unittests/test_assign_op_npu.py b/python/paddle/fluid/tests/unittests/test_assign_op_npu.py
index f00a3c103c817..ed21549b7e01f 100644
--- a/python/paddle/fluid/tests/unittests/test_assign_op_npu.py
+++ b/python/paddle/fluid/tests/unittests/test_assign_op_npu.py
@@ -36,7 +36,7 @@ def setUp(self):
         self.op_type = "assign"
         self.init_dtype()
 
-        x = np.rand.random([3, 3])
+        x = np.random.random([3, 3]).astype(self.dtype)
         self.inputs = {'X': x}
 
         self.attrs = {}
@@ -46,7 +46,7 @@ def set_npu(self):
         self.__class__.use_npu = True
 
     def init_dtype(self):
-        self.dtype = np.int64
+        self.dtype = np.float32
 
     def test_check_output(self):
         self.check_output_with_place(self.place, check_dygraph=False)
diff --git a/python/paddle/fluid/tests/unittests/test_multiprocess_dataloader_static.py b/python/paddle/fluid/tests/unittests/test_multiprocess_dataloader_static.py
index 8fd250f2a52c2..f5bccf7ab09b6 100644
--- a/python/paddle/fluid/tests/unittests/test_multiprocess_dataloader_static.py
+++ b/python/paddle/fluid/tests/unittests/test_multiprocess_dataloader_static.py
@@ -101,7 +101,7 @@ def prepare_places(with_data_parallel, with_cpu=False, with_gpu=True):
 
 
 class TestStaticDataLoader(unittest.TestCase):
-    def run_main(self, num_workers, places):
+    def run_main(self, num_workers, places, use_pe=True):
         scope = fluid.Scope()
         with fluid.scope_guard(scope):
             startup_prog, main_prog, image, label, loss = simple_fc_net_static()
@@ -120,10 +120,13 @@ def run_main(self, num_workers, places):
             exe = fluid.Executor(place=places[0])
             exe.run(startup_prog)
 
-            prog = fluid.CompiledProgram(main_prog)
-            if len(places) > 1:
-                prog = prog.with_data_parallel(
-                    loss_name=loss.name, places=places)
+            if use_pe:
+                prog = fluid.CompiledProgram(main_prog)
+                if len(places) > 1:
+                    prog = prog.with_data_parallel(
+                        loss_name=loss.name, places=places)
+            else:
+                prog = main_prog
 
             step_list = []
             loss_list = []
diff --git a/python/paddle/fluid/tests/unittests/test_static_save_load.py b/python/paddle/fluid/tests/unittests/test_static_save_load.py
index 51c543c5f7464..cfce0bb7d311b 100644
--- a/python/paddle/fluid/tests/unittests/test_static_save_load.py
+++ b/python/paddle/fluid/tests/unittests/test_static_save_load.py
@@ -19,7 +19,7 @@
 import paddle
 import paddle.fluid as fluid
 import paddle.fluid.core as core
-from paddle.fluid.dygraph.nn import Embedding
+from paddle.nn import Embedding
 import paddle.fluid.framework as framework
 from paddle.fluid.optimizer import Adam
 from paddle.fluid.dygraph.base import to_variable
@@ -31,6 +31,8 @@
 import os
 import errno
 
+paddle.enable_static()
+
 
 class SimpleLSTMRNN(fluid.Layer):
     def __init__(self,
@@ -159,11 +161,10 @@ def __init__(self,
             num_layers=num_layers,
             init_scale=init_scale,
             dropout=dropout)
-        self.embedding = Embedding(
-            size=[vocab_size, hidden_size],
-            dtype='float32',
-            is_sparse=False,
-            param_attr=fluid.ParamAttr(
+        self.embedding = paddle.nn.Embedding(
+            num_embeddings=vocab_size,
+            embedding_dim=hidden_size,
+            weight_attr=fluid.ParamAttr(
                 name='embedding_para',
                 initializer=fluid.initializer.UniformInitializer(
                     low=-init_scale, high=init_scale)))
@@ -187,6 +188,8 @@ def forward(self, input, label, init_hidden, init_cell):
         init_c = fluid.layers.reshape(
             init_cell, shape=[self.num_layers, -1, self.hidden_size])
 
+        # NPU 'tok_k' kernel only support `int32` dtype, so cast `input` from `int64` to `int32`.
+        input = fluid.layers.cast(input, "int32")
         x_emb = self.embedding(input)
         x_emb = fluid.layers.reshape(
             x_emb, shape=[-1, self.num_steps, self.hidden_size])
@@ -214,6 +217,10 @@ def forward(self, input, label, init_hidden, init_cell):
 
 
 class TestSaveLoadBase(unittest.TestCase):
+    def set_place(self):
+        return fluid.CPUPlace() if not core.is_compiled_with_cuda(
+        ) else fluid.CUDAPlace(0)
+
     def test_ptb_rnn_cpu_float32(self):
         seed = 90
         hidden_size = 10
@@ -235,8 +242,7 @@ def test_ptb_rnn_cpu_float32(self):
                 num_steps=num_steps,
                 init_scale=init_scale)
 
-            place = fluid.CPUPlace() if not core.is_compiled_with_cuda(
-            ) else fluid.CUDAPlace(0)
+            place = self.set_place()
             exe = fluid.Executor(place)
             sgd = Adam(learning_rate=1e-3)
             x = fluid.layers.data(
@@ -315,6 +321,10 @@ def test_ptb_rnn_cpu_float32(self):
 
 
 class TestSaveLoadPartial(unittest.TestCase):
+    def set_place(self):
+        return fluid.CPUPlace() if not core.is_compiled_with_cuda(
+        ) else fluid.CUDAPlace(0)
+
     def test_ptb_rnn_cpu_float32(self):
         seed = 90
         hidden_size = 10
@@ -336,8 +346,7 @@ def test_ptb_rnn_cpu_float32(self):
                 num_steps=num_steps,
                 init_scale=init_scale)
 
-            place = fluid.CPUPlace() if not core.is_compiled_with_cuda(
-            ) else fluid.CUDAPlace(0)
+            place = self.set_place()
             exe = fluid.Executor(place)
             sgd = Adam(learning_rate=1e-3)
             x = fluid.layers.data(
@@ -425,6 +434,10 @@ def test_ptb_rnn_cpu_float32(self):
 
 
 class TestSaveLoadSetStateDict(unittest.TestCase):
+    def set_place(self):
+        return fluid.CPUPlace() if not core.is_compiled_with_cuda(
+        ) else fluid.CUDAPlace(0)
+
     def test_ptb_rnn_cpu_float32(self):
         seed = 90
         hidden_size = 10
@@ -446,8 +459,7 @@ def test_ptb_rnn_cpu_float32(self):
                 num_steps=num_steps,
                 init_scale=init_scale)
 
-            place = fluid.CPUPlace() if not core.is_compiled_with_cuda(
-            ) else fluid.CUDAPlace(0)
+            place = self.set_place()
             exe = fluid.Executor(place)
             sgd = Adam(learning_rate=1e-3)
             x = fluid.layers.data(
@@ -526,6 +538,10 @@ def test_ptb_rnn_cpu_float32(self):
 
 
 class TestProgramStatePartial(unittest.TestCase):
+    def set_place(self):
+        return fluid.CPUPlace() if not core.is_compiled_with_cuda(
+        ) else fluid.CUDAPlace(0)
+
     def test_ptb_rnn_cpu_float32(self):
         seed = 90
         hidden_size = 10
@@ -547,8 +563,7 @@ def test_ptb_rnn_cpu_float32(self):
                 num_steps=num_steps,
                 init_scale=init_scale)
 
-            place = fluid.CPUPlace() if not core.is_compiled_with_cuda(
-            ) else fluid.CUDAPlace(0)
+            place = self.set_place()
             exe = fluid.Executor(place)
             sgd = Adam(learning_rate=1e-3)
             x = fluid.layers.data(
@@ -708,14 +723,17 @@ def test_ptb_rnn_cpu_float32(self):
 
 
 class TestVariableInit(unittest.TestCase):
+    def set_place(self):
+        return fluid.CPUPlace() if not core.is_compiled_with_cuda(
+        ) else fluid.CUDAPlace(0)
+
     def test_variable_init(self):
 
         x = fluid.data(name="x", shape=[10, 10], dtype='float32')
         y = fluid.layers.fc(x, 10)
         z = fluid.layers.fc(y, 10)
 
-        place = fluid.CPUPlace() if not core.is_compiled_with_cuda(
-        ) else fluid.CUDAPlace(0)
+        place = self.set_place()
         exe = fluid.Executor(place)
         exe.run(fluid.default_startup_program())
 
@@ -738,8 +756,7 @@ def set_var(var, ndarray):
         program = fluid.default_main_program()
         new_scope = fluid.core.Scope()
 
-        place = fluid.CPUPlace() if not core.is_compiled_with_cuda(
-        ) else fluid.CUDAPlace(0)
+        place = self.set_place()
         exe = fluid.Executor(place)
         parameter_list = list(
             filter(fluid.io.is_parameter, program.list_vars()))
@@ -798,6 +815,10 @@ def setUp(self):
         if os.path.exists("test_static_load_var_list.pdparams"):
             os.remove("test_static_load_var_list.pdparams")
 
+    def set_place(self):
+        return fluid.CPUPlace() if not core.is_compiled_with_cuda(
+        ) else fluid.CUDAPlace(0)
+
     def test_load_from_old_interface(self):
         seed = 90
         hidden_size = 10
@@ -819,8 +840,7 @@ def test_load_from_old_interface(self):
                 num_steps=num_steps,
                 init_scale=init_scale)
 
-            place = fluid.CPUPlace() if not core.is_compiled_with_cuda(
-            ) else fluid.CUDAPlace(0)
+            place = self.set_place()
             exe = fluid.Executor(place)
             sgd = Adam(learning_rate=1e-3)
             x = fluid.layers.data(
@@ -935,8 +955,7 @@ def test_load_from_old_interface_var_list(self):
                 num_steps=num_steps,
                 init_scale=init_scale)
 
-            place = fluid.CPUPlace() if not core.is_compiled_with_cuda(
-            ) else fluid.CUDAPlace(0)
+            place = self.set_place()
             exe = fluid.Executor(place)
             sgd = Adam(learning_rate=1e-3)
             x = fluid.layers.data(
@@ -1027,6 +1046,10 @@ def test_load_from_old_interface_var_list(self):
 
 
 class TestLoadFromOldInterfaceSingleFile(unittest.TestCase):
+    def set_place(self):
+        return fluid.CPUPlace() if not core.is_compiled_with_cuda(
+        ) else fluid.CUDAPlace(0)
+
     def test_load_from_old_interface(self):
         seed = 90
         hidden_size = 10
@@ -1048,8 +1071,7 @@ def test_load_from_old_interface(self):
                 num_steps=num_steps,
                 init_scale=init_scale)
 
-            place = fluid.CPUPlace() if not core.is_compiled_with_cuda(
-            ) else fluid.CUDAPlace(0)
+            place = self.set_place()
             exe = fluid.Executor(place)
             sgd = Adam(learning_rate=1e-3)
             x = fluid.layers.data(
@@ -1171,6 +1193,13 @@ def test_load_from_old_interface(self):
 
 
 class TestProgramStateOldSave(unittest.TestCase):
+    def setUp(self):
+        self.test_dygraph = True
+
+    def set_place(self):
+        return fluid.CPUPlace() if not core.is_compiled_with_cuda(
+        ) else fluid.CUDAPlace(0)
+
     def test_ptb_rnn_cpu_float32(self):
         seed = 90
         hidden_size = 10
@@ -1192,8 +1221,7 @@ def test_ptb_rnn_cpu_float32(self):
                 num_steps=num_steps,
                 init_scale=init_scale)
 
-            place = fluid.CPUPlace() if not core.is_compiled_with_cuda(
-            ) else fluid.CUDAPlace(0)
+            place = self.set_place()
             exe = fluid.Executor(place)
             sgd = Adam(learning_rate=1e-3)
             x = fluid.layers.data(
@@ -1299,11 +1327,12 @@ def symlink_force(target, link_name):
             fluid.set_program_state(main_program, program_state)
             self.check_in_static(main_program, base_map)
 
-        # make sure `load_program_state` can be used in dynamic graph mode
-        with fluid.dygraph.guard(place):
-            load_state = fluid.load_program_state("test_program_1")
-            for k, v in load_state.items():
-                self.assertTrue(np.array_equal(base_map[k], v))
+        if self.test_dygraph:
+            # make sure `load_program_state` can be used in dynamic graph mode
+            with fluid.dygraph.guard(place):
+                load_state = fluid.load_program_state("test_program_1")
+                for k, v in load_state.items():
+                    self.assertTrue(np.array_equal(base_map[k], v))
 
     def create_symlink(self, target, link_name):
         try:
@@ -1323,6 +1352,10 @@ def check_in_static(self, main_program, base_map):
 
 
 class TestProgramStateOldSaveSingleModel(unittest.TestCase):
+    def set_place(self):
+        return fluid.CPUPlace() if not core.is_compiled_with_cuda(
+        ) else fluid.CUDAPlace(0)
+
     def test_ptb_rnn_cpu_float32(self):
         seed = 90
         hidden_size = 10
@@ -1344,8 +1377,7 @@ def test_ptb_rnn_cpu_float32(self):
                 num_steps=num_steps,
                 init_scale=init_scale)
 
-            place = fluid.CPUPlace() if not core.is_compiled_with_cuda(
-            ) else fluid.CUDAPlace(0)
+            place = self.set_place()
             exe = fluid.Executor(place)
             sgd = Adam(learning_rate=1e-3)
             x = fluid.layers.data(
diff --git a/tools/timeline.py b/tools/timeline.py
index 119018380b551..2a399b71b7786 100644
--- a/tools/timeline.py
+++ b/tools/timeline.py
@@ -186,6 +186,13 @@ def _allocate_pids(self):
                         self._chrome_trace.emit_pid(
                             "memory usage on %s:cudapinnedplace:%d" %
                             (k, mevent.device_id), pid)
+                elif mevent.place == profiler_pb2.MemEvent.NPUPlace:
+                    if (k, mevent.device_id, "NPU") not in self._mem_devices:
+                        pid = self._allocate_pid()
+                        self._mem_devices[(k, mevent.device_id, "NPU")] = pid
+                        self._chrome_trace.emit_pid(
+                            "memory usage on %s:npu:%d" % (k, mevent.device_id),
+                            pid)
                 if (k, 0, "CPU") not in self._mem_devices:
                     pid = self._allocate_pid()
                     self._mem_devices[(k, 0, "CPU")] = pid
@@ -201,6 +208,11 @@ def _allocate_pids(self):
                     self._mem_devices[(k, 0, "CUDAPinnedPlace")] = pid
                     self._chrome_trace.emit_pid(
                         "memory usage on %s:cudapinnedplace:%d" % (k, 0), pid)
+                if (k, 0, "NPU") not in self._mem_devices:
+                    pid = self._allocate_pid()
+                    self._mem_devices[(k, 0, "NPU")] = pid
+                    self._chrome_trace.emit_pid("memory usage on %s:npu:%d" %
+                                                (k, 0), pid)
 
     def _allocate_events(self):
         for k, profile_pb in six.iteritems(self._profile_dict):
@@ -227,7 +239,8 @@ def _allocate_memory_event(self):
         place_to_str = {
             profiler_pb2.MemEvent.CPUPlace: "CPU",
             profiler_pb2.MemEvent.CUDAPlace: "GPU",
-            profiler_pb2.MemEvent.CUDAPinnedPlace: "CUDAPinnedPlace"
+            profiler_pb2.MemEvent.CUDAPinnedPlace: "CUDAPinnedPlace",
+            profiler_pb2.MemEvent.NPUPlace: "NPU"
         }
         for k, profile_pb in six.iteritems(self._profile_dict):
             mem_list = []