diff --git a/src/common/types.cpp b/src/common/types.cpp
index c25c5db30c7183b6685db03386ca9a9355ca6958..444789237f573f8da3eaf915abf61493967aabf8 100644
--- a/src/common/types.cpp
+++ b/src/common/types.cpp
@@ -37,6 +37,7 @@ const char *G_OP_TYPE_FUSION_CONV_ADD = "fusion_conv_add";
 const char *G_OP_TYPE_LRN = "lrn";
 const char *G_OP_TYPE_MUL = "mul";
 const char *G_OP_TYPE_MULTICLASS_NMS = "multiclass_nms";
+const char *G_OP_TYPE_NORM = "norm";
 const char *G_OP_TYPE_POLYGON_BOX_TRANSFORM = "polygon_box_transform";
 const char *G_OP_TYPE_POOL2D = "pool2d";
 const char *G_OP_TYPE_PRIOR_BOX = "prior_box";
@@ -169,5 +170,6 @@ std::unordered_map<
         {G_OP_TYPE_FUSION_DECONV_ADD_RELU, {{"Input"}, {"Out"}}},
         {G_OP_TYPE_SEQUENCE_EXPAND, {{"X", "Y"}, {"Out"}}},
         {G_OP_TYPE_SEQUENCE_POOL, {{"X"}, {"Out"}}},
-        {G_OP_TYPE_SEQUENCE_SOFTMAX, {{"X"}, {"Out"}}}};
+        {G_OP_TYPE_SEQUENCE_SOFTMAX, {{"X"}, {"Out"}}},
+        {G_OP_TYPE_NORM, {{"X"}, {"Out", "Norm"}}}};
 }  // namespace paddle_mobile
diff --git a/src/fpga/V1/api.cpp b/src/fpga/V1/api.cpp
index f17e79ffaacccbd9c24d3e0937274bce890aa357..137ac73512b9d88716ab585ba315f26aa3b14ea8 100644
--- a/src/fpga/V1/api.cpp
+++ b/src/fpga/V1/api.cpp
@@ -332,8 +332,8 @@ void expand_conv_arg(ConvArgs *arg) {
   auto image_win_cnt = block_len;
   auto image_win_cnt_last = block_last;
   auto res_row_data_align4_pad = res_amount_per_row_pad / 8;
-  auto prog_full_cnt = 2048 / (filter_amount_all / 16 * 2) - 1;
-  if (prog_full_cnt == 1023) {
+  auto prog_full_cnt = 1024 / (filter_amount_all / 16 * 2) - 1;
+  if (prog_full_cnt == 511) {
     prog_full_cnt--;
   }
   auto post_prog_full_cnt =
diff --git a/src/fpga/common/fpga_common.cpp b/src/fpga/common/fpga_common.cpp
old mode 100755
new mode 100644
index 1495e6e12ce4568c04db35b8d241cf9c7a40e9e0..0a1787aa3f211a247d95cd7124879ce14af980a9
--- a/src/fpga/common/fpga_common.cpp
+++ b/src/fpga/common/fpga_common.cpp
@@ -22,26 +22,97 @@ namespace paddle_mobile {
 namespace fpga {
 
 int16_t fp32_2_fp16(float fp32_num) {
-  unsigned long tmp = *(unsigned long *)(&fp32_num);  // NOLINT
-  auto t = (int16_t)(((tmp & 0x007fffff) >> 13) | ((tmp & 0x80000000) >> 16) |
-                     (((tmp & 0x7f800000) >> 13) - (112 << 10)));
-  if (tmp & 0x1000) {
-    t++;  // roundoff
+  int32_t tmp = *(reinterpret_cast<int32_t *>(&fp32_num));
+  int16_t se_fp32 = (tmp >> 23) & 0x1ff;
+  int32_t m_fp32 = tmp & 0x007fffff;
+  int16_t se_fp16 = 0;
+  int16_t m_fp16 = 0;
+
+  if (se_fp32 < 103) {
+    se_fp16 = 0x0000;
+    m_fp16 = m_fp32 >> 24;
+  } else if (se_fp32 < 113) {
+    se_fp16 = (0x0400 >> (113 - se_fp32));
+    m_fp16 = m_fp32 >> (126 - se_fp32);
+  } else if (se_fp32 <= 142) {
+    se_fp16 = (se_fp32 - 112) << 10;
+    m_fp16 = m_fp32 >> 13;
+  } else if (se_fp32 < 255) {
+    se_fp16 = 0x7C00;
+    m_fp16 = m_fp32 >> 24;
+  } else if (se_fp32 == 255) {
+    se_fp16 = 0x7C00;
+    m_fp16 = m_fp32 >> 13;
+  } else if (se_fp32 < 359) {
+    se_fp16 = 0x8000;
+    m_fp16 = m_fp32 >> 24;
+  } else if (se_fp32 < 369) {
+    se_fp16 = (0x0400 >> (369 - se_fp32)) | 0x8000;
+    m_fp16 = m_fp32 >> (382 - se_fp32);
+  } else if (se_fp32 <= 398) {
+    se_fp16 = ((se_fp32 - 368) << 10) | 0x8000;
+    m_fp16 = m_fp32 >> 13;
+  } else if (se_fp32 < 511) {
+    se_fp16 = 0x7C00;
+    m_fp16 = m_fp32 >> 24;
+  } else {
+    se_fp16 = 0x7C00;
+    m_fp16 = m_fp32 >> 13;
+  }
+  int16_t result = se_fp16 + m_fp16;
+  return result;
+}
+
+int32_t convertmantissa(int32_t i) {
+  int32_t m = i << 13;
+  int32_t e = 0;
+  while (!(m & 0x00800000)) {
+    e -= 0x00800000;
+    m <<= 1;
   }
-  return t;
+  m &= ~0x00800000;
+  e += 0x38800000;
+  return m | e;
 }
 
 float fp16_2_fp32(int16_t fp16_num) {
-  if (0 == fp16_num) {
-    return 0;
+  int16_t se_fp16 = fp16_num >> 10;
+  int16_t m_fp16 = fp16_num & 0x3ff;
+  int32_t e_fp32 = 0;
+  int16_t offset = 0;
+  int32_t m_fp32 = 0;
+  if (se_fp16 == 0) {
+    e_fp32 = 0;
+    offset = 0;
+  } else if (se_fp16 < 31) {
+    e_fp32 = se_fp16 << 23;
+    offset = 1024;
+  } else if (se_fp16 == 31) {
+    e_fp32 = 0x47800000;
+    offset = 1024;
+  } else if (se_fp16 == 32) {
+    e_fp32 = 0x80000000;
+    offset = 0;
+  } else if (se_fp16 < 63) {
+    e_fp32 = 0x80000000 + (se_fp16 - 32) << 23;
+    offset = 1024;
+  } else {  // se_fp16 == 63
+    e_fp32 = 0xC7800000;
+    offset = 1024;
   }
-  int frac = (fp16_num & 0x3ff);
-  int exp = ((fp16_num & 0x7c00) >> 10) + 112;
-  int s = fp16_num & 0x8000;
-  int tmp = 0;
-  float fp32_num;
-  tmp = s << 16 | exp << 23 | frac << 13;
-  fp32_num = *(float *)&tmp;  // NOLINT
+  int16_t a = offset + m_fp16;
+  if (a == 0) {
+    m_fp32 = 0;
+  } else if (a < 1024) {
+    int32_t tmp = a;
+    m_fp32 = convertmantissa(tmp);
+  } else {
+    int32_t tmp = a - 1024;
+    m_fp32 = 0x38000000 + (tmp << 13);
+  }
+
+  int32_t tmp = e_fp32 + m_fp32;
+  float fp32_num = *(reinterpret_cast<float *>(&tmp));
   return fp32_num;
 }
 
@@ -126,6 +197,5 @@ uint64_t vaddr_to_paddr(void *address) {
   return 0;
 #endif
 }
-
 }  // namespace fpga
 }  // namespace paddle_mobile
diff --git a/src/fpga/common/fpga_common.h b/src/fpga/common/fpga_common.h
index 9bf67ba8292df66c3184b4b76ad0a45daa188537..c9519071fba94ad1e2b526d9e4d5cd96a1bcdbac 100755
--- a/src/fpga/common/fpga_common.h
+++ b/src/fpga/common/fpga_common.h
@@ -256,6 +256,6 @@ int fpga_invalidate(void* address, size_t size);
 uint64_t vaddr_to_paddr(void* address);
 void expand_conv_arg(ConvArgs* arg);
 void expand_EW_arg(EWAddArgs* arg);
-
+inline int32_t convertmantissa(int32_t i);
 }  // namespace fpga
 }  // namespace paddle_mobile
diff --git a/src/operators/kernel/arm/norm_kernel.cpp b/src/operators/kernel/arm/norm_kernel.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..32617992cb1a60b44265343092f15316ea087df1
--- /dev/null
+++ b/src/operators/kernel/arm/norm_kernel.cpp
@@ -0,0 +1,36 @@
+/* Copyright (c) 2018 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 NORM_OP
+
+#include "operators/kernel/norm_kernel.h"
+#include "operators/kernel/central-arm-func/norm_arm_func.h"
+
+namespace paddle_mobile {
+namespace operators {
+
+template <>
+bool NormKernel<CPU, float>::Init(NormParam<CPU> *param) {
+  return true;
+}
+
+template <>
+void NormKernel<CPU, float>::Compute(const NormParam<CPU> &param) {
+  NormCompute<float>(param);
+}
+
+}  // namespace operators
+}  // namespace paddle_mobile
+
+#endif
diff --git a/src/operators/kernel/central-arm-func/norm_arm_func.h b/src/operators/kernel/central-arm-func/norm_arm_func.h
new file mode 100644
index 0000000000000000000000000000000000000000..71b4c5515e9493def7c8d824e61917dfc8d1b985
--- /dev/null
+++ b/src/operators/kernel/central-arm-func/norm_arm_func.h
@@ -0,0 +1,106 @@
+/* Copyright (c) 2018 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 NORM_OP
+
+#pragma once
+
+#include <cmath>
+#include "operators/op_param.h"
+
+namespace paddle_mobile {
+namespace operators {
+
+inline void GetDims(const framework::DDim &dim, int axis, int *pre, int *n,
+                    int *post) {
+  *pre = 1;
+  *post = 1;
+  *n = dim[axis];
+  for (int i = 0; i < axis; ++i) {
+    (*pre) *= dim[i];
+  }
+  for (int i = axis + 1; i < dim.size(); ++i) {
+    (*post) *= dim[i];
+  }
+}
+
+template <typename P>
+void NormCompute(const NormParam<CPU> &param) {
+  const float epsilon = param.Epsilon();
+  int axis = param.Axis();
+
+  const framework::Tensor *input = param.InputX();
+  framework::Tensor *norm = param.OutputNorm();
+  framework::Tensor *out = param.Out();
+
+  auto x_dims = input->dims();
+  if (axis < 0) {
+    axis += x_dims.size();
+  }
+
+  int pre, n, post;
+  GetDims(x_dims, axis, &pre, &n, &post);
+
+  const float *input_ptr = input->data<float>();
+  float *norm_ptr = norm->mutable_data<float>();
+  float *out_ptr = out->mutable_data<float>();
+
+  for (int p = 0; p < pre; ++p) {
+    const float *in_tmp = input_ptr + p * n * post;
+    float *norm_tmp = norm_ptr + p * post;
+
+    // in_ch = 0; norm = epsilon + x * x
+    for (int i = 0; i < post; ++i) {
+      *norm_tmp = epsilon;
+      *norm_tmp += (*in_tmp) * (*in_tmp);
+      norm_tmp++;
+      in_tmp++;
+    }
+
+    // in_ch >= 1; norm += x * x
+    for (int c = 1; c < n; ++c) {
+      norm_tmp = norm_ptr + p * post;
+      for (int i = 0; i < post; ++i) {
+        *norm_tmp += (*in_tmp) * (*in_tmp);
+        norm_tmp++;
+        in_tmp++;
+      }
+    }
+
+    // norm = sqart(norm)
+    norm_tmp = norm_ptr + p * post;
+    for (int i = 0; i < post; ++i) {
+      *norm_tmp = sqrtf(*norm_tmp);
+      norm_tmp++;
+    }
+
+    // out = input / norm
+    in_tmp = input_ptr + p * n * post;
+    float *out_tmp = out_ptr + p * n * post;
+    for (int c = 0; c < n; ++c) {
+      norm_tmp = norm_ptr + p * post;
+      for (int j = 0; j < post; ++j) {
+        *out_tmp = *in_tmp / *norm_tmp;
+        in_tmp++;
+        norm_tmp++;
+        out_tmp++;
+      }
+    }
+  }
+}
+
+}  // namespace operators
+}  // namespace paddle_mobile
+
+#endif
diff --git a/src/operators/kernel/norm_kernel.h b/src/operators/kernel/norm_kernel.h
new file mode 100644
index 0000000000000000000000000000000000000000..4f945bdb8b03a3952dd362df8b36a1db26f3fd93
--- /dev/null
+++ b/src/operators/kernel/norm_kernel.h
@@ -0,0 +1,36 @@
+/* Copyright (c) 2018 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 NORM_OP
+
+#pragma once
+
+#include "framework/operator.h"
+#include "operators/op_param.h"
+
+namespace paddle_mobile {
+namespace operators {
+
+template <typename DeviceType, typename T>
+class NormKernel
+    : public framework::OpKernelBase<DeviceType, NormParam<DeviceType>> {
+ public:
+  void Compute(const NormParam<DeviceType> &param);
+  bool Init(NormParam<DeviceType> *param);
+};
+
+}  // namespace operators
+}  // namespace paddle_mobile
+
+#endif
diff --git a/src/operators/norm_op.cpp b/src/operators/norm_op.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..deed9f69d1cf40ee70a211b0c9a84e4afeef6623
--- /dev/null
+++ b/src/operators/norm_op.cpp
@@ -0,0 +1,52 @@
+/* Copyright (c) 2018 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 NORM_OP
+
+#include "operators/norm_op.h"
+#include "framework/op_proto_maker.h"
+#include "framework/op_registry.h"
+
+namespace paddle_mobile {
+namespace operators {
+
+template <typename Dtype, typename T>
+void NormOp<Dtype, T>::InferShape() const {
+  auto x_dims = this->param_.InputX()->dims();
+  this->param_.Out()->Resize(x_dims);
+
+  int axis = this->param_.Axis();
+  if (axis < 0) {
+    axis += x_dims.size();
+  }
+  x_dims[axis] = 1;
+  this->param_.OutputNorm()->Resize(x_dims);
+}
+
+}  // namespace operators
+}  // namespace paddle_mobile
+
+namespace ops = paddle_mobile::operators;
+#ifdef PADDLE_MOBILE_CPU
+REGISTER_OPERATOR_CPU(norm, ops::NormOp);
+#endif
+#ifdef PADDLE_MOBILE_MALI_GPU
+#endif
+#ifdef PADDLE_MOBILE_FPGA
+#endif
+
+#ifdef PADDLE_MOBILE_CL
+#endif
+
+#endif
diff --git a/src/operators/norm_op.h b/src/operators/norm_op.h
new file mode 100644
index 0000000000000000000000000000000000000000..5bd6924af1d4aca125795be879cf67c09832965e
--- /dev/null
+++ b/src/operators/norm_op.h
@@ -0,0 +1,47 @@
+/* Copyright (c) 2018 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 NORM_OP
+
+#pragma once
+
+#include <string>
+#include "framework/operator.h"
+#include "operators/kernel/norm_kernel.h"
+#include "operators/op_param.h"
+
+namespace paddle_mobile {
+namespace operators {
+using std::string;
+template <typename DeviceType, typename T>
+class NormOp
+    : public framework::OperatorWithKernel<DeviceType, NormParam<DeviceType>,
+                                           NormKernel<DeviceType, T>> {
+ public:
+  NormOp(const string &type, const VariableNameMap &inputs,
+         const VariableNameMap &outputs, const framework::AttributeMap &attrs,
+         std::shared_ptr<framework::Scope> scope)
+      : framework::OperatorWithKernel<DeviceType, NormParam<DeviceType>,
+                                      NormKernel<DeviceType, T>>(
+            type, inputs, outputs, attrs, scope) {}
+
+  void InferShape() const override;
+
+ protected:
+};
+
+}  // namespace operators
+}  // namespace paddle_mobile
+
+#endif
diff --git a/src/operators/op_param.h b/src/operators/op_param.h
index 8976d8be8e0722fe6915af4786d55809a9f8ca7c..385be3b72f233c9a0951f17b8c61c23adc346988 100644
--- a/src/operators/op_param.h
+++ b/src/operators/op_param.h
@@ -280,6 +280,11 @@ class OpParam {
     return GetVarValue<T>("OutputBox", outputs, scope);
   }
 
+  template <typename T>
+  static T *OutputNormFrom(const VariableNameMap &outputs, const Scope &scope) {
+    return GetVarValue<T>("Norm", outputs, scope);
+  }
+
   template <typename T>
   static T *OutputVariancesFrom(const VariableNameMap &outputs,
                                 const Scope &scope) {
@@ -733,6 +738,41 @@ class LrnParam : public OpParam {
 };
 #endif
 
+#ifdef NORM_OP
+template <typename Dtype>
+class NormParam : OpParam {
+  typedef typename DtypeTensorTrait<Dtype>::gtype GType;
+  typedef typename DtypeTensorTrait<Dtype>::rtype RType;
+
+ public:
+  NormParam(const VariableNameMap &inputs, const VariableNameMap &outputs,
+            const AttributeMap &attrs, const Scope &scope) {
+    input_x_ = InputXFrom<GType>(inputs, scope);
+    out_ = OutFrom<GType>(outputs, scope);
+    output_norm_ = OutputNormFrom<GType>(outputs, scope);
+    epsilon_ = GetAttr<float>("epsilon", attrs);
+    axis_ = GetAttr<int>("axis", attrs);
+  }
+
+  const RType *InputX() const { return input_x_; }
+
+  RType *Out() const { return out_; }
+
+  RType *OutputNorm() const { return output_norm_; }
+
+  const float &Epsilon() const { return epsilon_; }
+
+  const int &Axis() const { return axis_; }
+
+ private:
+  RType *input_x_;
+  RType *out_;
+  RType *output_norm_;
+  float epsilon_;
+  int axis_;
+};
+#endif
+
 #ifdef BATCHNORM_OP
 template <typename Dtype>
 class BatchNormParam : OpParam {
diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index 6cab082d98f6247e5254b8bfa4c6a208c50fb42c..e90fe2c904868d0145a889033720e4948a1f3c33 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -235,6 +235,15 @@ if (NOT FOUND_MATCH)
     ADD_EXECUTABLE(test-relu-op operators/test_relu_op.cpp test_helper.h test_include.h)
     target_link_libraries(test-relu-op paddle-mobile)
 
+    ADD_EXECUTABLE(test-relu6-op operators/test_relu6_op.cpp test_helper.h test_include.h)
+    target_link_libraries(test-relu6-op paddle-mobile)
+
+    ADD_EXECUTABLE(test-topk-op operators/test_topk_op.cpp test_helper.h test_include.h)
+    target_link_libraries(test-topk-op paddle-mobile)
+
+    ADD_EXECUTABLE(test-cast-op operators/test_cast_op.cpp test_helper.h test_include.h)
+    target_link_libraries(test-cast-op paddle-mobile)
+
     # gen test
     ADD_EXECUTABLE(test-fc-op operators/test_fusion_fc_op.cpp test_helper.h test_include.h)
     target_link_libraries(test-fc-op paddle-mobile)
@@ -394,4 +403,9 @@ if (NOT FOUND_MATCH)
 
     ADD_EXECUTABLE(test-sequence-softmax operators/test_sequence_softmax_op.cpp test_helper.h test_include.h)
     target_link_libraries(test-sequence-softmax paddle-mobile)
+
+    # gen test
+    ADD_EXECUTABLE(test-vgg16ssd net/test_vgg16ssd.cpp test_helper.h test_include.h)
+    target_link_libraries(test-vgg16ssd paddle-mobile)
+
 endif ()
diff --git a/test/net/test_vgg16ssd.cpp b/test/net/test_vgg16ssd.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..387d6f38ea9185d0563b39defbed928bda0186bf
--- /dev/null
+++ b/test/net/test_vgg16ssd.cpp
@@ -0,0 +1,46 @@
+/* Copyright (c) 2018 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 <iostream>
+#include "../test_helper.h"
+#include "../test_include.h"
+
+int main() {
+  paddle_mobile::PaddleMobile<paddle_mobile::CPU> paddle_mobile;
+  paddle_mobile.SetThreadNum(1);
+  auto time1 = paddle_mobile::time();
+
+  auto isok =
+      paddle_mobile.Load(std::string(g_vgg16_ssd_combined) + "/model",
+                         std::string(g_vgg16_ssd_combined) + "/params", false);
+  if (isok) {
+    auto time2 = paddle_mobile::time();
+    std::cout << "load cost :" << paddle_mobile::time_diff(time1, time1) << "ms"
+              << std::endl;
+
+    std::vector<int64_t> dims{1, 3, 300, 300};
+    Tensor input_tensor;
+    SetupTensor<float>(&input_tensor, {1, 3, 300, 300}, static_cast<float>(0),
+                       static_cast<float>(1));
+
+    std::vector<float> input(input_tensor.data<float>(),
+                             input_tensor.data<float>() + input_tensor.numel());
+
+    auto vec_result = paddle_mobile.Predict(input, dims);
+
+    DLOG << vec_result;
+  }
+
+  return 0;
+}
diff --git a/test/operators/test_batchnorm_op.cpp b/test/operators/test_batchnorm_op.cpp
index c027d4bd31d5ff41f42e9cd333618f8630aad5d9..f78aa4061205586e9d1540b65a8a3dbc32de6757 100644
--- a/test/operators/test_batchnorm_op.cpp
+++ b/test/operators/test_batchnorm_op.cpp
@@ -17,157 +17,106 @@ limitations under the License. */
 #include "operators/batchnorm_op.h"
 
 namespace paddle_mobile {
-namespace framework {
-
-template <typename Dtype>
-class TestBatchNormOp {
- public:
-  explicit TestBatchNormOp(const Program<Dtype> p) : program_(p) {
-    if (use_optimize_) {
-      to_predict_program_ = program_.optimizeProgram;
-    } else {
-      to_predict_program_ = program_.originProgram;
-    }
 
-    const std::vector<std::shared_ptr<BlockDesc>> blocks =
-        to_predict_program_->Blocks();
-    //  DLOG << " **block size " << blocks.size();
-    for (int i = 0; i < blocks.size(); ++i) {
-      std::shared_ptr<BlockDesc> block_desc = blocks[i];
-      std::vector<std::shared_ptr<OpDesc>> ops = block_desc->Ops();
-      //    DLOG << " ops " << ops.size();
-      for (int j = 0; j < ops.size(); ++j) {
-        std::shared_ptr<OpDesc> op = ops[j];
-        if (op->Type() == "batch_norm" &&
-            op->Input("X")[0] == "conv2d_5.tmp_0") {
-          DLOG << " mul attr size: " << op->GetAttrMap().size();
-          DLOG << " inputs size: " << op->GetInputs().size();
-          DLOG << " outputs size: " << op->GetOutputs().size();
-          DLOG << " Input X is : " << op->Input("X")[0];
-          DLOG << " Input Mean is : " << op->Input("Mean")[0];
-          DLOG << " Input Variance is : " << op->Input("Variance")[0];
-          DLOG << " Input Scale is : " << op->Input("Scale")[0];
-          DLOG << " Input Bias is : " << op->Input("Bias")[0];
-          DLOG << " Output Y is : " << op->Output("Y")[0];
-          DLOG << " epsilon : " << op->GetAttrMap().at("epsilon").Get<float>();
-          std::shared_ptr<operators::BatchNormOp<Dtype, float>> lrn =
-              std::make_shared<operators::BatchNormOp<Dtype, float>>(
-                  op->Type(), op->GetInputs(), op->GetOutputs(),
-                  op->GetAttrMap(), program_.scope);
-          ops_of_block_[*block_desc.get()].push_back(lrn);
-        }
+void BatchNorm(const framework::Tensor *X, const framework::Tensor *Mean,
+               const framework::Tensor *Var, const framework::Tensor *Scale,
+               const framework::Tensor *Bias, const float eps,
+               framework::Tensor *Y) {
+  const float *x = X->data<float>();
+  const float *m = Mean->data<float>();
+  const float *v = Var->data<float>();
+  const float *s = Scale->data<float>();
+  const float *b = Bias->data<float>();
+  float *y = Y->mutable_data<float>();
+
+  int batch_size = X->dims()[0];
+  int channel = X->dims()[1];
+  int hw = X->dims()[2] * X->dims()[3];
+
+  for (int batch = 0; batch < batch_size; ++batch) {
+    for (int c = 0; c < channel; ++c) {
+      float mean = m[c];
+      float inv_var = 1.f / std::sqrt(v[c] + eps);
+      float scale = s[c];
+      float bias = b[c];
+      const float *input = x + (batch * channel + c) * hw;
+      float *output = y + (batch * channel + c) * hw;
+      for (int j = 0; j < hw; ++j) {
+        output[j] = scale * ((input[j] - mean) * inv_var) + bias;
       }
     }
   }
+}
 
-  std::shared_ptr<Tensor> predict_bn(const Tensor &t1, const Tensor &t2,
-                                     const Tensor &t3, const Tensor &t4,
-                                     const Tensor &t5) {
-    // feed
-    auto scope = program_.scope;
-    Variable *x1_feed_value = scope->Var("conv2d_5.tmp_0");
-    auto tensor_x1 = x1_feed_value->GetMutable<LoDTensor>();
-    tensor_x1->ShareDataWith(t1);
-
-    Variable *mean_feed_value = scope->Var("batch_norm_10.w_1");
-    auto tensor_mean = mean_feed_value->GetMutable<LoDTensor>();
-    tensor_mean->ShareDataWith(t2);
-
-    Variable *scale_feed_value = scope->Var("batch_norm_10.w_0");
-    auto tensor_scale = scale_feed_value->GetMutable<LoDTensor>();
-    tensor_scale->ShareDataWith(t3);
-
-    Variable *variance_feed_value = scope->Var("batch_norm_10.w_2");
-    auto tensor_variance = variance_feed_value->GetMutable<LoDTensor>();
-    tensor_variance->ShareDataWith(t4);
-
-    Variable *bias_feed_value = scope->Var("batch_norm_10.b_0");
-    auto tensor_bias = bias_feed_value->GetMutable<LoDTensor>();
-    tensor_bias->ShareDataWith(t5);
-
-    Variable *output = scope->Var("batch_norm_10.tmp_2");
-    auto *output_tensor = output->GetMutable<LoDTensor>();
-    output_tensor->mutable_data<float>({1, 256, 38, 38});
-    //  DLOG << typeid(output_tensor).name();
-    //  DLOG << "output_tensor dims: " << output_tensor->dims();
-
-    std::shared_ptr<Tensor> out_tensor = std::make_shared<LoDTensor>();
-    out_tensor.reset(output_tensor);
-
-    predict_bn(t1, t2, t3, t4, t5, 0);
-    return out_tensor;
-  }
-
- private:
-  const framework::Program<Dtype> program_;
-  std::shared_ptr<ProgramDesc> to_predict_program_;
-  std::map<framework::BlockDesc,
-           std::vector<std::shared_ptr<OperatorBase<Dtype>>>>
-      ops_of_block_;
-  bool use_optimize_ = false;
-
-  void predict_bn(const Tensor &t1, const Tensor &t2, const Tensor &t3,
-                  const Tensor &t4, const Tensor &t5, int block_id) {
-    std::shared_ptr<BlockDesc> to_predict_block =
-        to_predict_program_->Block(block_id);
-    for (int j = 0; j < ops_of_block_[*to_predict_block.get()].size(); ++j) {
-      auto op = ops_of_block_[*to_predict_block.get()][j];
-      DLOG << "op -> run()";
-      op->Run();
+int TestBatchNormOp(const std::vector<int> input_shape) {
+  framework::DDim dims = framework::make_ddim(input_shape);
+  VariableNameMap inputs;
+  VariableNameMap outputs;
+  auto scope = std::make_shared<framework::Scope>();
+  inputs["X"] = std::vector<std::string>({"input"});
+  inputs["Mean"] = std::vector<std::string>({"mean"});
+  inputs["Variance"] = std::vector<std::string>({"variance"});
+  inputs["Scale"] = std::vector<std::string>({"scale"});
+  inputs["Bias"] = std::vector<std::string>({"bias"});
+  outputs["Y"] = std::vector<std::string>({"output"});
+
+  auto input_var = scope.get()->Var("input");
+  auto input = input_var->template GetMutable<framework::LoDTensor>();
+  SetupTensor<float>(input, dims, -100.0, 100.0);
+
+  auto mean_var = scope.get()->Var("mean");
+  auto mean = mean_var->template GetMutable<framework::LoDTensor>();
+  SetupTensor<float>(mean, framework::make_ddim({input_shape[1]}), -10.0, 10.0);
+
+  auto vari_var = scope.get()->Var("variance");
+  auto vari = vari_var->template GetMutable<framework::LoDTensor>();
+  SetupTensor<float>(vari, framework::make_ddim({input_shape[1]}), -10.0, 10.0);
+
+  auto scale_var = scope.get()->Var("scale");
+  auto scale = scale_var->template GetMutable<framework::LoDTensor>();
+  SetupTensor<float>(scale, framework::make_ddim({input_shape[1]}), -10.0,
+                     10.0);
+
+  auto bias_var = scope.get()->Var("bias");
+  auto bias = bias_var->template GetMutable<framework::LoDTensor>();
+  SetupTensor<float>(bias, framework::make_ddim({input_shape[1]}), -10.0, 10.0);
+
+  auto output_var = scope.get()->Var("output");
+
+  float eps = 1e-6;
+  framework::AttributeMap attrs;
+  attrs["epsilon"].Set<float>(eps);
+  attrs["momentum"].Set<float>(0.f);
+
+  auto *op = new operators::BatchNormOp<CPU, float>("batch_norm", inputs,
+                                                    outputs, attrs, scope);
+  op->InferShape();
+  op->Init();
+  op->Run();
+
+  auto output = output_var->template Get<framework::LoDTensor>();
+
+  framework::Tensor output_cmp;
+  float *output_cmp_data = output_cmp.mutable_data<float>(output->dims());
+  BatchNorm(input, mean, vari, scale, bias, eps, &output_cmp);
+
+  const float *output_data = output->data<float>();
+  for (int i = 0; i < output->numel(); ++i) {
+    float gap = output_data[i] - output_cmp_data[i];
+    if (std::abs(gap / (output_data[i] + 1e-5)) > 1e-3) {
+      LOG(kLOG_INFO) << "output_data[" << i << "] = " << output_data[i]
+                     << ", output_cmp_data[" << i
+                     << "] = " << output_cmp_data[i];
+      delete op;
+      exit(1);
     }
   }
-};
+}
 
-template class TestBatchNormOp<CPU>;
-}  // namespace framework
 }  // namespace paddle_mobile
 
 int main() {
-  DLOG << "----------**********----------";
-  DLOG << "begin to run BatchNormOp Test";
-  paddle_mobile::framework::Loader<paddle_mobile::CPU> loader;
-  auto program = loader.Load(std::string(g_mobilenet_ssd));
-
-  /// input x (4,10,2,2)
-  paddle_mobile::framework::Tensor inputx1;
-  SetupTensor<float>(&inputx1, {1, 256, 38, 38}, static_cast<float>(0),
-                     static_cast<float>(1));
-  auto *inputx1_ptr = inputx1.data<float>();
-
-  paddle_mobile::framework::Tensor mean;
-  SetupTensor<float>(&mean, {256}, static_cast<float>(0),
-                     static_cast<float>(1));
-  auto *mean_ptr = mean.data<float>();
-
-  paddle_mobile::framework::Tensor scale;
-  SetupTensor<float>(&scale, {256}, static_cast<float>(0),
-                     static_cast<float>(1));
-  auto *scale_ptr = scale.data<float>();
-
-  paddle_mobile::framework::Tensor variance;
-  SetupTensor<float>(&variance, {256}, static_cast<float>(0),
-                     static_cast<float>(1));
-  auto *variance_ptr = variance.data<float>();
-
-  paddle_mobile::framework::Tensor bias;
-  SetupTensor<float>(&bias, {256}, static_cast<float>(0),
-                     static_cast<float>(1));
-  auto *bias_ptr = bias.data<float>();
-
-  paddle_mobile::framework::TestBatchNormOp<paddle_mobile::CPU> testBatchNormOp(
-      program);
-
-  auto output_bn =
-      testBatchNormOp.predict_bn(inputx1, mean, scale, variance, bias);
-  auto *output_bn_ptr = output_bn->data<float>();
-
-  DLOG << " (" << inputx1_ptr[0] << " - " << mean_ptr[0] << ")/(("
-       << variance_ptr[0] << " + 0.00001"
-       << ")^0.5)* " << scale_ptr[0] << " + " << bias_ptr[0] << " = ";
-  DLOG << output_bn_ptr[0];
-
-  DLOG << "input_ptr 0 : " << inputx1_ptr[0];
-  DLOG << "output_ptr 0 : " << output_bn_ptr[0];
-
+  TestBatchNormOp({1, 1, 10, 10});
+  TestBatchNormOp({1, 32, 100, 100});
   return 0;
 }
diff --git a/test/operators/test_cast_op.cpp b/test/operators/test_cast_op.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..df6fab705bfb639f2b2d0b6d8c30bb86512b84d0
--- /dev/null
+++ b/test/operators/test_cast_op.cpp
@@ -0,0 +1,126 @@
+/* Copyright (c) 2018 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 "../test_include.h"
+#include "operators/cast_op.h"
+
+namespace paddle_mobile {
+
+template <typename Itype, typename Otype>
+void Cast(const framework::Tensor *X, framework::Tensor *Y) {
+  const Itype *x = X->data<Itype>();
+  Otype *y = Y->mutable_data<Otype>();
+
+  for (int i = 0; i < X->numel(); ++i) {
+    y[i] = static_cast<Otype>(x[i]);
+  }
+}
+
+template <typename T>
+int TypeInt() {}
+template <>
+int TypeInt<bool>() {
+  return 0;
+}
+template <>
+int TypeInt<int>() {
+  return 2;
+}
+template <>
+int TypeInt<int64_t>() {
+  return 3;
+}
+template <>
+int TypeInt<float>() {
+  return 5;
+}
+template <>
+int TypeInt<double>() {
+  return 6;
+}
+template <>
+int TypeInt<size_t>() {
+  return 19;
+}
+template <>
+int TypeInt<uint8_t>() {
+  return 20;
+}
+template <>
+int TypeInt<int8_t>() {
+  return 21;
+}
+
+template <typename Itype, typename Otype>
+int TestCastOp(const std::vector<int> input_shape) {
+  framework::DDim dims = framework::make_ddim(input_shape);
+  VariableNameMap inputs;
+  VariableNameMap outputs;
+  auto scope = std::make_shared<framework::Scope>();
+  inputs["X"] = std::vector<std::string>({"input"});
+  outputs["Out"] = std::vector<std::string>({"output"});
+
+  auto input_var = scope.get()->Var("input");
+  auto input = input_var->template GetMutable<framework::LoDTensor>();
+  SetupTensor<Itype>(input, dims, static_cast<Itype>(-100),
+                     static_cast<Itype>(100));
+
+  auto output_var = scope.get()->Var("output");
+
+  framework::AttributeMap attrs;
+  attrs["in_dtype"].Set<int>(TypeInt<Itype>());
+  attrs["out_dtype"].Set<int>(TypeInt<Otype>());
+  auto *op =
+      new operators::CastOp<CPU, float>("cast", inputs, outputs, attrs, scope);
+  op->InferShape();
+  op->Init();
+  op->Run();
+
+  auto output = output_var->template Get<framework::LoDTensor>();
+
+  framework::Tensor output_cmp;
+  Otype *output_cmp_data = output_cmp.mutable_data<Otype>(output->dims());
+  Cast<Itype, Otype>(input, &output_cmp);
+
+  const Otype *output_data = output->data<Otype>();
+  for (int i = 0; i < output->numel(); ++i) {
+    float gap = output_data[i] - output_cmp_data[i];
+    if (std::abs(gap / (output_data[i] + 1e-5)) > 1e-3) {
+      LOG(kLOG_INFO) << "output_data[" << i << "] = " << output_data[i]
+                     << ", output_cmp_data[" << i
+                     << "] = " << output_cmp_data[i];
+      delete op;
+      exit(1);
+    }
+  }
+  delete op;
+  return 0;
+}
+
+}  // namespace paddle_mobile
+
+int main(int argc, char *argv[]) {
+  TestCastOp<float, int>({1, 100});
+  TestCastOp<float, int>({128, 100});
+
+  TestCastOp<float, int64_t>({1, 100});
+  TestCastOp<float, int64_t>({128, 100});
+
+  TestCastOp<int, float>({1, 100});
+  TestCastOp<int, float>({128, 100});
+
+  TestCastOp<int64_t, float>({1, 100});
+  TestCastOp<int64_t, float>({128, 100});
+  return 0;
+}
diff --git a/test/operators/test_pool_op.cpp b/test/operators/test_pool_op.cpp
index acbf0eaf34c8cb7b35a94fd4e8a4a3867a7c1dff..c7590512f92e2166ea082986fb97bed771eb2b15 100644
--- a/test/operators/test_pool_op.cpp
+++ b/test/operators/test_pool_op.cpp
@@ -103,20 +103,7 @@ int TestPoolOp(int in_channels, int in_height, int in_width) {
 }
 }  // namespace paddle_mobile
 
-int main(int argc, char *argv[]) {
-  if (argc < 4) {
-    LOG(paddle_mobile::kLOG_INFO)
-        << "Usage:\n"
-        << "  ./test-pool-op in_channels in_height in_width \n"
-        << "  params:\n"
-        << "   -in_channels: int, input image's channels\n"
-        << "   -in_height: int, input image's height\n"
-        << "   -in_width: int, input image's width\n";
-    return 1;
-  }
-  int in_channels = atoi(argv[1]);
-  int in_height = atoi(argv[2]);
-  int in_width = atoi(argv[3]);
+int Test(const int in_channels, const int in_height, const int in_width) {
   LOG(paddle_mobile::kLOG_INFO)
       << "float, pooling_type=max, kernel=3, pad=0, stride=1";
   paddle_mobile::TestPoolOp<0, 3, 0, 1>(in_channels, in_height, in_width);
@@ -169,55 +156,75 @@ int main(int argc, char *argv[]) {
       << "float, pooling_type=avg, kernel=3, pad=5, stride=2";
   paddle_mobile::TestPoolOp<1, 3, 5, 2>(in_channels, in_height, in_width);
 
-  //  LOG(paddle_mobile::kLOG_INFO)
-  //      << "float, pooling_type=max, kernel=2, pad=0, stride=1";
-  //  paddle_mobile::TestPoolOp<0, 2, 0, 1>(in_channels, in_height, in_width);
-  //  LOG(paddle_mobile::kLOG_INFO)
-  //      << "float, pooling_type=max, kernel=2, pad=1, stride=1";
-  //  paddle_mobile::TestPoolOp<0, 2, 1, 1>(in_channels, in_height, in_width);
-  //  LOG(paddle_mobile::kLOG_INFO)
-  //      << "float, pooling_type=max, kernel=2, pad=2, stride=1";
-  //  paddle_mobile::TestPoolOp<0, 2, 2, 1>(in_channels, in_height, in_width);
-  //  LOG(paddle_mobile::kLOG_INFO)
-  //      << "float, pooling_type=max, kernel=2, pad=5, stride=1";
-  //  paddle_mobile::TestPoolOp<0, 2, 5, 1>(in_channels, in_height, in_width);
-  //
-  //  LOG(paddle_mobile::kLOG_INFO)
-  //      << "float, pooling_type=avg, kernel=2, pad=0, stride=1";
-  //  paddle_mobile::TestPoolOp<1, 2, 0, 1>(in_channels, in_height, in_width);
-  //  LOG(paddle_mobile::kLOG_INFO)
-  //      << "float, pooling_type=avg, kernel=2, pad=1, stride=1";
-  //  paddle_mobile::TestPoolOp<1, 2, 1, 1>(in_channels, in_height, in_width);
-  //  LOG(paddle_mobile::kLOG_INFO)
-  //      << "float, pooling_type=avg, kernel=2, pad=2, stride=1";
-  //  paddle_mobile::TestPoolOp<1, 2, 2, 1>(in_channels, in_height, in_width);
-  //  LOG(paddle_mobile::kLOG_INFO)
-  //      << "float, pooling_type=avg, kernel=2, pad=5, stride=1";
-  //  paddle_mobile::TestPoolOp<1, 2, 5, 1>(in_channels, in_height, in_width);
-  //
-  //  LOG(paddle_mobile::kLOG_INFO)
-  //      << "float, pooling_type=max, kernel=2, pad=0, stride=2";
-  //  paddle_mobile::TestPoolOp<0, 2, 0, 2>(in_channels, in_height, in_width);
-  //  LOG(paddle_mobile::kLOG_INFO)
-  //      << "float, pooling_type=max, kernel=2, pad=1, stride=2";
-  //  paddle_mobile::TestPoolOp<0, 2, 1, 2>(in_channels, in_height, in_width);
-  //  LOG(paddle_mobile::kLOG_INFO)
-  //      << "float, pooling_type=max, kernel=2, pad=2, stride=2";
-  //  paddle_mobile::TestPoolOp<0, 2, 2, 2>(in_channels, in_height, in_width);
-  //  LOG(paddle_mobile::kLOG_INFO)
-  //      << "float, pooling_type=max, kernel=2, pad=5, stride=2";
-  //  paddle_mobile::TestPoolOp<0, 2, 5, 2>(in_channels, in_height, in_width);
-  //
-  //  LOG(paddle_mobile::kLOG_INFO)
-  //      << "float, pooling_type=avg, kernel=2, pad=0, stride=2";
-  //  paddle_mobile::TestPoolOp<1, 2, 0, 2>(in_channels, in_height, in_width);
-  //  LOG(paddle_mobile::kLOG_INFO)
-  //      << "float, pooling_type=avg, kernel=2, pad=1, stride=2";
-  //  paddle_mobile::TestPoolOp<1, 2, 1, 2>(in_channels, in_height, in_width);
-  //  LOG(paddle_mobile::kLOG_INFO)
-  //      << "float, pooling_type=avg, kernel=2, pad=2, stride=2";
-  //  paddle_mobile::TestPoolOp<1, 2, 2, 2>(in_channels, in_height, in_width);
-  //  LOG(paddle_mobile::kLOG_INFO)
-  //      << "float, pooling_type=avg, kernel=2, pad=5, stride=2";
-  //  paddle_mobile::TestPoolOp<1, 2, 5, 2>(in_channels, in_height, in_width);
+  LOG(paddle_mobile::kLOG_INFO)
+      << "float, pooling_type=max, kernel=2, pad=0, stride=1";
+  paddle_mobile::TestPoolOp<0, 2, 0, 1>(in_channels, in_height, in_width);
+  LOG(paddle_mobile::kLOG_INFO)
+      << "float, pooling_type=max, kernel=2, pad=1, stride=1";
+  paddle_mobile::TestPoolOp<0, 2, 1, 1>(in_channels, in_height, in_width);
+  LOG(paddle_mobile::kLOG_INFO)
+      << "float, pooling_type=max, kernel=2, pad=2, stride=1";
+  paddle_mobile::TestPoolOp<0, 2, 2, 1>(in_channels, in_height, in_width);
+  LOG(paddle_mobile::kLOG_INFO)
+      << "float, pooling_type=max, kernel=2, pad=5, stride=1";
+  paddle_mobile::TestPoolOp<0, 2, 5, 1>(in_channels, in_height, in_width);
+
+  LOG(paddle_mobile::kLOG_INFO)
+      << "float, pooling_type=avg, kernel=2, pad=0, stride=1";
+  paddle_mobile::TestPoolOp<1, 2, 0, 1>(in_channels, in_height, in_width);
+  LOG(paddle_mobile::kLOG_INFO)
+      << "float, pooling_type=avg, kernel=2, pad=1, stride=1";
+  paddle_mobile::TestPoolOp<1, 2, 1, 1>(in_channels, in_height, in_width);
+  LOG(paddle_mobile::kLOG_INFO)
+      << "float, pooling_type=avg, kernel=2, pad=2, stride=1";
+  paddle_mobile::TestPoolOp<1, 2, 2, 1>(in_channels, in_height, in_width);
+  LOG(paddle_mobile::kLOG_INFO)
+      << "float, pooling_type=avg, kernel=2, pad=5, stride=1";
+  paddle_mobile::TestPoolOp<1, 2, 5, 1>(in_channels, in_height, in_width);
+
+  LOG(paddle_mobile::kLOG_INFO)
+      << "float, pooling_type=max, kernel=2, pad=0, stride=2";
+  paddle_mobile::TestPoolOp<0, 2, 0, 2>(in_channels, in_height, in_width);
+  LOG(paddle_mobile::kLOG_INFO)
+      << "float, pooling_type=max, kernel=2, pad=1, stride=2";
+  paddle_mobile::TestPoolOp<0, 2, 1, 2>(in_channels, in_height, in_width);
+  LOG(paddle_mobile::kLOG_INFO)
+      << "float, pooling_type=max, kernel=2, pad=2, stride=2";
+  paddle_mobile::TestPoolOp<0, 2, 2, 2>(in_channels, in_height, in_width);
+  LOG(paddle_mobile::kLOG_INFO)
+      << "float, pooling_type=max, kernel=2, pad=5, stride=2";
+  paddle_mobile::TestPoolOp<0, 2, 5, 2>(in_channels, in_height, in_width);
+
+  LOG(paddle_mobile::kLOG_INFO)
+      << "float, pooling_type=avg, kernel=2, pad=0, stride=2";
+  paddle_mobile::TestPoolOp<1, 2, 0, 2>(in_channels, in_height, in_width);
+  LOG(paddle_mobile::kLOG_INFO)
+      << "float, pooling_type=avg, kernel=2, pad=1, stride=2";
+  paddle_mobile::TestPoolOp<1, 2, 1, 2>(in_channels, in_height, in_width);
+  LOG(paddle_mobile::kLOG_INFO)
+      << "float, pooling_type=avg, kernel=2, pad=2, stride=2";
+  paddle_mobile::TestPoolOp<1, 2, 2, 2>(in_channels, in_height, in_width);
+  LOG(paddle_mobile::kLOG_INFO)
+      << "float, pooling_type=avg, kernel=2, pad=5, stride=2";
+  paddle_mobile::TestPoolOp<1, 2, 5, 2>(in_channels, in_height, in_width);
+}
+
+int main(int argc, char *argv[]) {
+  //  if (argc < 4) {
+  //    LOG(paddle_mobile::kLOG_INFO)
+  //        << "Usage:\n"
+  //        << "  ./test-pool-op in_channels in_height in_width \n"
+  //        << "  params:\n"
+  //        << "   -in_channels: int, input image's channels\n"
+  //        << "   -in_height: int, input image's height\n"
+  //        << "   -in_width: int, input image's width\n";
+  //    return 1;
+  //  }
+  //  int in_channels = atoi(argv[1]);
+  //  int in_height = atoi(argv[2]);
+  //  int in_width = atoi(argv[3]);
+  Test(1, 10, 10);
+  Test(1, 50, 50);
+  Test(32, 10, 10);
+  Test(32, 50, 50);
 }
diff --git a/test/operators/test_relu6_op.cpp b/test/operators/test_relu6_op.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..2d2885f3ea94f522adbccefe5010662920a367a4
--- /dev/null
+++ b/test/operators/test_relu6_op.cpp
@@ -0,0 +1,82 @@
+/* Copyright (c) 2018 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 <cmath>
+#include <iostream>
+#include "../test_include.h"
+#include "operators/relu_op.h"
+
+namespace paddle_mobile {
+
+void Relu6(const framework::Tensor *X, framework::Tensor *Y) {
+  const float *x = X->data<float>();
+  float *y = Y->mutable_data<float>();
+
+  for (int i = 0; i < X->numel(); ++i) {
+    float q = x[i];
+    y[i] = std::min(std::max(0.f, q), 6.f);
+  }
+}
+
+int TestRelu6Op(const std::vector<int> input_shape) {
+  framework::DDim dims = framework::make_ddim(input_shape);
+  VariableNameMap inputs;
+  VariableNameMap outputs;
+  auto scope = std::make_shared<framework::Scope>();
+  inputs["X"] = std::vector<std::string>({"input"});
+  outputs["Out"] = std::vector<std::string>({"output"});
+
+  auto input_var = scope.get()->Var("input");
+  auto input = input_var->template GetMutable<framework::LoDTensor>();
+  SetupTensor<float>(input, dims, -100.0, 100.0);
+
+  auto output_var = scope.get()->Var("output");
+
+  framework::AttributeMap attrs;
+  auto *op = new operators::Relu6Op<CPU, float>("relu6", inputs, outputs, attrs,
+                                                scope);
+  op->InferShape();
+  op->Init();
+  op->Run();
+
+  auto output = output_var->template Get<framework::LoDTensor>();
+
+  framework::Tensor output_cmp;
+  float *output_cmp_data = output_cmp.mutable_data<float>(output->dims());
+  Relu6(input, &output_cmp);
+
+  const float *output_data = output->data<float>();
+  for (int i = 0; i < output->numel(); ++i) {
+    float gap = output_data[i] - output_cmp_data[i];
+    if (std::abs(gap / (output_data[i] + 1e-5)) > 1e-3) {
+      LOG(kLOG_INFO) << "output_data[" << i << "] = " << output_data[i]
+                     << ", output_cmp_data[" << i
+                     << "] = " << output_cmp_data[i];
+      delete op;
+      exit(1);
+    }
+  }
+  delete op;
+  return 0;
+}
+
+}  // namespace paddle_mobile
+
+int main() {
+  paddle_mobile::TestRelu6Op({1, 1, 2, 3});
+  paddle_mobile::TestRelu6Op({1, 3, 11, 22});
+  paddle_mobile::TestRelu6Op({1, 32, 112, 112});
+  std::cout << "test relu6 op pass." << std::endl;
+  return 0;
+}
diff --git a/test/operators/test_relu_op.cpp b/test/operators/test_relu_op.cpp
index 542d3d18f6a383c1e03962ba845b39c04a51631b..c38a16e684029e22a3f1b489c1a83776e91382c2 100644
--- a/test/operators/test_relu_op.cpp
+++ b/test/operators/test_relu_op.cpp
@@ -12,46 +12,71 @@ 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 <cmath>
+#include <iostream>
 #include "../test_include.h"
 #include "operators/relu_op.h"
 
-int main() {
-  paddle_mobile::framework::Loader<paddle_mobile::CPU> loader;
-  auto program = loader.Load(g_resnet);
-  PADDLE_MOBILE_ENFORCE(program.originProgram != nullptr,
-                        "program file read fail");
+namespace paddle_mobile {
 
-  Executor4Test<paddle_mobile::CPU,
-                paddle_mobile::operators::ReluOp<paddle_mobile::CPU, float>>
-      executor(program, "relu");
+void Relu(const framework::Tensor *X, framework::Tensor *Y) {
+  const float *x = X->data<float>();
+  float *y = Y->mutable_data<float>();
 
-  // 1. input_tensors;
-  vector<Tensor> input_tensors;
+  for (int i = 0; i < X->numel(); ++i) {
+    float q = x[i];
+    y[i] = std::max(0.f, q);
+  }
+}
 
-  Tensor input1;
-  auto input1_data = CreateInput<float>(&input1, {1, 2, 3, 4}, -1, 1);
-  input_tensors.push_back(input1);
+int TestReluOp(const std::vector<int> input_shape) {
+  framework::DDim dims = framework::make_ddim(input_shape);
+  VariableNameMap inputs;
+  VariableNameMap outputs;
+  auto scope = std::make_shared<framework::Scope>();
+  inputs["X"] = std::vector<std::string>({"input"});
+  outputs["Out"] = std::vector<std::string>({"output"});
 
-  // 2. input_names
-  vector<string> input_names({
-      "batch_norm_0.tmp_2",
-  });
+  auto input_var = scope.get()->Var("input");
+  auto input = input_var->template GetMutable<framework::LoDTensor>();
+  SetupTensor<float>(input, dims, -100.0, 100.0);
 
-  // 3. output_names
-  vector<string> output_names({"batch_norm_0.tmp_3"});
+  auto output_var = scope.get()->Var("output");
 
-  // 4. out_dims;
-  vector<DDim> out_ddims;
-  auto out_ddim = paddle_mobile::framework::make_ddim({1, 2, 3, 4});
-  out_ddims.push_back(out_ddim);
+  framework::AttributeMap attrs;
+  auto *op =
+      new operators::ReluOp<CPU, float>("relu", inputs, outputs, attrs, scope);
+  op->InferShape();
+  op->Init();
+  op->Run();
 
-  auto output = executor.Predict<LoDTensor>(input_tensors, input_names,
-                                            output_names, out_ddims);
+  auto output = output_var->template Get<framework::LoDTensor>();
 
-  auto output0_data = output[0]->data<float>();
+  framework::Tensor output_cmp;
+  float *output_cmp_data = output_cmp.mutable_data<float>(output->dims());
+  Relu(input, &output_cmp);
 
-  for (int j = 0; j < output[0]->numel(); ++j) {
-    DLOG << " value of output: " << output0_data[j];
+  const float *output_data = output->data<float>();
+  for (int i = 0; i < output->numel(); ++i) {
+    float gap = output_data[i] - output_cmp_data[i];
+    if (std::abs(gap / (output_data[i] + 1e-5)) > 1e-3) {
+      LOG(kLOG_INFO) << "output_data[" << i << "] = " << output_data[i]
+                     << ", output_cmp_data[" << i
+                     << "] = " << output_cmp_data[i];
+      delete op;
+      exit(1);
+    }
   }
+  delete op;
+  return 0;
+}
+
+}  // namespace paddle_mobile
+
+int main() {
+  paddle_mobile::TestReluOp({1, 1, 2, 3});
+  paddle_mobile::TestReluOp({1, 3, 11, 22});
+  paddle_mobile::TestReluOp({1, 32, 112, 112});
+  std::cout << "test relu op pass." << std::endl;
   return 0;
 }
diff --git a/test/operators/test_topk_op.cpp b/test/operators/test_topk_op.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..7244232d0737fb9fe77448331c0bdf2477b4f8e5
--- /dev/null
+++ b/test/operators/test_topk_op.cpp
@@ -0,0 +1,139 @@
+/* Copyright (c) 2018 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 <math.h>
+#include <limits>
+#include "../test_include.h"
+#include "operators/top_k_op.h"
+
+namespace paddle_mobile {
+
+void TopK(const framework::Tensor *X, framework::Tensor *Y,
+          framework::Tensor *Indices, const int K) {
+  const float *x = X->data<float>();
+  float *y = Y->mutable_data<float>();
+  int64_t *indices = Indices->mutable_data<int64_t>();
+
+  int dim_size = X->dims().size();
+  int row = 1;
+  int col = X->dims()[dim_size - 1];
+  for (int i = 0; i < dim_size - 1; ++i) {
+    row *= X->dims()[i];
+  }
+
+  std::vector<float> vec(col);
+  for (int i = 0; i < row; ++i) {
+    for (int j = 0; j < col; ++j) {
+      vec[j] = x[i * col + j];
+    }
+    for (int k = 0; k < K; ++k) {
+      float max = vec[0];
+      int index = 0;
+      for (int j = 1; j < col; ++j) {
+        if (vec[j] > max) {
+          max = vec[j];
+          index = j;
+        }
+      }
+      y[i * K + k] = max;
+      indices[i * K + k] = index;
+      vec[index] = -std::numeric_limits<float>::max();
+    }
+  }
+}
+
+int TestTopKOp(const std::vector<int> input_shape, const int K) {
+  framework::DDim dims = framework::make_ddim(input_shape);
+  VariableNameMap inputs;
+  VariableNameMap outputs;
+  auto scope = std::make_shared<framework::Scope>();
+  inputs["X"] = std::vector<std::string>({"input"});
+  outputs["Out"] = std::vector<std::string>({"output"});
+  outputs["Indices"] = std::vector<std::string>({"indices"});
+
+  auto input_var = scope.get()->Var("input");
+  auto input = input_var->template GetMutable<framework::LoDTensor>();
+  SetupTensor<float>(input, dims, -100.0, 100.0);
+
+  auto output_var = scope.get()->Var("output");
+  auto indices_var = scope.get()->Var("indices");
+
+  framework::AttributeMap attrs;
+  attrs["k"].Set<int>(K);
+  auto *op =
+      new operators::TopKOp<CPU, float>("top_k", inputs, outputs, attrs, scope);
+  op->InferShape();
+  op->Init();
+  op->Run();
+
+  auto output = output_var->template Get<framework::LoDTensor>();
+  auto indices = indices_var->template Get<framework::LoDTensor>();
+
+  framework::Tensor output_cmp, indices_cmp;
+  float *output_cmp_data = output_cmp.mutable_data<float>(output->dims());
+  int64_t *indices_cmp_data =
+      indices_cmp.mutable_data<int64_t>(indices->dims());
+  TopK(input, &output_cmp, &indices_cmp, K);
+
+  // sort output
+  float *output_data = const_cast<float *>(output->data<float>());
+  int64_t *indices_data = const_cast<int64_t *>(indices->data<int64_t>());
+  //  std::vector<std::pair<float, size_t>> vec(K);
+  //  for (int i = 0; i < output->numel() / K; ++i) {
+  //    for (int j = 0; j < K; ++j) {
+  //      vec[j] = std::move(std::make_pair(output_data[i * K + j],
+  //      indices_data[i * K + j]));
+  //    }
+  //    std::sort(vec.begin(), vec.end(),
+  //              [](const std::pair<float, size_t> &l,
+  //                 const std::pair<float, size_t> &r) {
+  //                   return l.first > r.first; });
+  //    for (int j = 0; j < K; ++j) {
+  //      output_data[i * K + j] = vec[j].first;
+  //      indices_data[i * K + j] = vec[j].second;
+  //    }
+  //  }
+
+  for (int i = 0; i < output->numel(); ++i) {
+    float gap = output_data[i] - output_cmp_data[i];
+    if (std::abs(gap / (output_data[i] + 1e-5)) > 1e-3) {
+      LOG(kLOG_INFO) << "output_data[" << i << "] = " << output_data[i]
+                     << ", output_cmp_data[" << i
+                     << "] = " << output_cmp_data[i];
+      delete op;
+      exit(1);
+    }
+  }
+
+  for (int i = 0; i < indices->numel(); ++i) {
+    if (indices_data[i] != indices_cmp_data[i]) {
+      LOG(kLOG_INFO) << "indices_data[" << i << "] = " << indices_data[i]
+                     << ", indices_cmp_data[" << i
+                     << "] = " << indices_cmp_data[i];
+      delete op;
+      exit(1);
+    }
+  }
+  delete op;
+  return 0;
+}
+
+}  // namespace paddle_mobile
+
+int main(int argc, char *argv[]) {
+  TestTopKOp({1, 100}, 1);
+  TestTopKOp({128, 100}, 10);
+  TestTopKOp({128, 2, 100}, 10);
+  return 0;
+}
diff --git a/test/test_helper.h b/test/test_helper.h
index 60e907fa6fb301b2e944a6d938f662225a743d41..7d677217a0fddecc23fb354b2b8b5c9a652746cf 100644
--- a/test/test_helper.h
+++ b/test/test_helper.h
@@ -50,6 +50,7 @@ static const char *g_yolo = "../models/yolo";
 static const char *g_yolo_combined = "../models/yolo_combined";
 static const char *g_yolo_mul = "../models/d";
 static const char *g_fluid_fssd_new = "../models/fluid_fssd_new";
+static const char *g_vgg16_ssd_combined = "../models/vgg16_ssd_combined";
 static const char *g_test_image_1x3x224x224 =
     "../images/test_image_1x3x224x224_float";
 static const char *g_test_image_1x3x224x224_banana =
diff --git a/tools/ios-cmake/ios.toolchain.cmake b/tools/ios-cmake/ios.toolchain.cmake
index 6000f7a8e5dffcd8693b56539f4519840ddd8be8..12dd1721d488cd8ba776b8f302f137ad2d60fe73 100644
--- a/tools/ios-cmake/ios.toolchain.cmake
+++ b/tools/ios-cmake/ios.toolchain.cmake
@@ -146,6 +146,7 @@ if (NOT DEFINED CMAKE_IOS_DEVELOPER_ROOT)
 endif (NOT DEFINED CMAKE_IOS_DEVELOPER_ROOT)
 set (CMAKE_IOS_DEVELOPER_ROOT ${CMAKE_IOS_DEVELOPER_ROOT} CACHE PATH "Location of iOS Platform")
 
+set(CMAKE_IOS_SDK_ROOT "/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk")
 # Find and use the most recent iOS sdk unless specified manually with CMAKE_IOS_SDK_ROOT
 if (NOT DEFINED CMAKE_IOS_SDK_ROOT)
   file (GLOB _CMAKE_IOS_SDKS "${CMAKE_IOS_DEVELOPER_ROOT}/SDKs/*")
diff --git a/tools/op.cmake b/tools/op.cmake
index 3563834e77fa5eba363fc64ba337dd30c95a3820..e98e95e4ed29ced5044315dd4fb59a1866964a82 100644
--- a/tools/op.cmake
+++ b/tools/op.cmake
@@ -215,6 +215,7 @@ endif()
 
 if(NOT FOUND_MATCH)
   message("--default--")
+  set(NORM_OP ON)
   set(BATCHNORM_OP ON)
   set(CONV_TRANSPOSE_OP ON)
   set(BOXCODER_OP ON)
@@ -302,6 +303,9 @@ endif()
   # option(TRANSPOSE2_OP "" ON)
 # endif ()
 
+if (NORM_OP)
+  add_definitions(-DNORM_OP)
+endif()
 if (BATCHNORM_OP)
   add_definitions(-DBATCHNORM_OP)
 endif()