diff --git a/mobile/CMakeLists.txt b/mobile/CMakeLists.txt
index 00a53035a118c0ee76025ab50790672c02391ae3..1883da85739f15ada96fead77a02b72b3bcceb6a 100644
--- a/mobile/CMakeLists.txt
+++ b/mobile/CMakeLists.txt
@@ -4,7 +4,7 @@ cmake_minimum_required(VERSION 3.0.0)
 if(IS_IOS)
     option(USE_OPENMP       "build with openmp support"      OFF)
 else()
-    option(USE_OPENMP       "build with openmp support"      ON)
+    option(USE_OPENMP       "build with openmp support"      OFF)
 endif()
 option(USE_EXCEPTION    "build with exception"           ON)
 option(WITH_LOGGING     "print logging for debug"        OFF)
diff --git a/mobile/src/operators/kernel/cl/density_prior_box_kernel.cpp b/mobile/src/operators/kernel/cl/density_prior_box_kernel.cpp
index 1cd1ff8de88fa13f08490e0fcc7c5b7e0c865849..1a5cf0f061606d82076ce0f231e03ba3b36753a0 100644
--- a/mobile/src/operators/kernel/cl/density_prior_box_kernel.cpp
+++ b/mobile/src/operators/kernel/cl/density_prior_box_kernel.cpp
@@ -68,7 +68,7 @@ void DensityPriorBoxKernel<GPU_CL, float>::Compute(
 
   auto output_boxes = param.OutputBoxes()->GetCLImage();
   auto output_var = param.OutputVariances()->GetCLImage();
-  auto new_deensity = param.getNewDensity()->GetCLImage();
+  auto new_density = param.getNewDensity()->GetCLImage();
 
   float step_w = param.StepW();
   float step_h = param.StepH();
@@ -113,7 +113,7 @@ void DensityPriorBoxKernel<GPU_CL, float>::Compute(
   CL_CHECK_ERRORS(status);
   status = clSetKernelArg(kernel, 1, sizeof(cl_mem), &output_var);
   CL_CHECK_ERRORS(status);
-  status = clSetKernelArg(kernel, 2, sizeof(cl_mem), &new_deensity);
+  status = clSetKernelArg(kernel, 2, sizeof(cl_mem), &new_density);
   CL_CHECK_ERRORS(status);
   status = clSetKernelArg(kernel, 3, sizeof(float), &step_h);
   CL_CHECK_ERRORS(status);
diff --git a/mobile/src/operators/kernel/prior_box_kernel.h b/mobile/src/operators/kernel/prior_box_kernel.h
index 89bccebcee3e911410ec89ff2c4ae4ae48b2ac59..c5d561083d13f878b6b46ccd03d4ae3c4d1f233f 100644
--- a/mobile/src/operators/kernel/prior_box_kernel.h
+++ b/mobile/src/operators/kernel/prior_box_kernel.h
@@ -16,6 +16,7 @@ limitations under the License. */
 
 #include <algorithm>
 #include <cmath>
+#include <memory>
 #include <vector>
 #include "framework/operator.h"
 #include "operators/math/transform.h"
@@ -77,11 +78,7 @@ class DensityPriorBoxParam : public OpParam {
     densities_ = GetAttr<vector<int>>("densities", attrs);
   }
 
-  ~DensityPriorBoxParam() {
-    if (new_density) {
-      delete new_density;
-    }
-  }
+  ~DensityPriorBoxParam() {}
 
   const GType *Input() const { return input_; }
   const GType *InputImage() const { return input_image_; }
@@ -96,8 +93,8 @@ class DensityPriorBoxParam : public OpParam {
   const vector<float> &FixedRatios() const { return fixed_ratios_; }
   const vector<int> &Densities() const { return densities_; }
   const vector<float> &Variances() const { return variances_; }
-  GType *getNewDensity() const { return new_density; }
-  void setNewDensity(GType *newDensity) { new_density = newDensity; }
+  GType *getNewDensity() const { return new_density.get(); }
+  void setNewDensity(GType *newDensity) { new_density.reset(newDensity); }
 
  public:
   GType *input_;
@@ -113,7 +110,7 @@ class DensityPriorBoxParam : public OpParam {
   vector<float> fixed_ratios_;
   vector<int> densities_;
   vector<float> variances_;
-  GType *new_density;
+  std::shared_ptr<GType> new_density;
 };
 
 DECLARE_KERNEL(DensityPriorBox, DensityPriorBoxParam);
diff --git a/mobile/src/operators/op_param.h b/mobile/src/operators/op_param.h
index ec803f0590e9c534e73514ae45a489d6aa777528..2c695dfe053a3557052a093a34cd8aeb6da88381 100644
--- a/mobile/src/operators/op_param.h
+++ b/mobile/src/operators/op_param.h
@@ -57,6 +57,21 @@ using std::vector;
 
 using framework::DtypeTensorTrait;
 
+template <typename Dtype>
+class CLImageDeleter {
+  typedef typename DtypeTensorTrait<Dtype>::gtype GType;
+
+ public:
+  void operator()(GType *ptr) {
+#ifdef PADDLE_MOBILE_CL
+    framework::CLImage *image = dynamic_cast<framework::CLImage *>(ptr);
+    if (image) {
+      delete image;
+    }
+#endif
+  }
+};
+
 class OpParam {
  public:
   OpParam(const VariableNameMap &inputs, const VariableNameMap &outputs,
@@ -850,14 +865,7 @@ class BatchNormParam : public OpParam {
     //    is_test_ = GetAttr<bool>("is_test", attrs);
   }
 
-  ~BatchNormParam() {
-    if (new_bias_) {
-      delete new_bias_;
-    }
-    if (new_scale_) {
-      delete new_scale_;
-    }
-  }
+  ~BatchNormParam() {}
 
   const GType *InputX() const { return input_x_; }
 
@@ -879,13 +887,17 @@ class BatchNormParam : public OpParam {
 
   const string &DataFormat() const { return data_format_; }
 
-  void SetNewScale(GType *new_scale) { new_scale_ = new_scale; }
+  void SetNewScale(GType *new_scale) {
+    new_scale_.reset(new_scale, CLImageDeleter<Dtype>());
+  }
 
-  void SetNewBias(GType *new_bias) { new_bias_ = new_bias; }
+  void SetNewBias(GType *new_bias) {
+    new_bias_.reset(new_bias, CLImageDeleter<Dtype>());
+  }
 
-  const GType *NewScale() const { return new_scale_; }
+  const GType *NewScale() const { return new_scale_.get(); }
 
-  const GType *NewBias() const { return new_bias_; }
+  const GType *NewBias() const { return new_bias_.get(); }
 
  private:
   GType *input_x_;
@@ -898,8 +910,8 @@ class BatchNormParam : public OpParam {
   float momentum_;
   bool is_test_;
   string data_format_;
-  GType *new_bias_;
-  GType *new_scale_;
+  std::shared_ptr<GType> new_bias_;
+  std::shared_ptr<GType> new_scale_;
 };
 #endif
 
@@ -2086,14 +2098,7 @@ class FusionConvAddBNReluParam : public ConvParam<Dtype> {
     this->output_ = OpParam::OutFrom<GType>(outputs, *scope);
   }
 
-  ~FusionConvAddBNReluParam() {
-    if (new_bias_) {
-      delete new_bias_;
-    }
-    if (new_scale_) {
-      delete new_scale_;
-    }
-  }
+  ~FusionConvAddBNReluParam() {}
 
   GType *Bias() const { return bias_; }
 
@@ -2111,13 +2116,17 @@ class FusionConvAddBNReluParam : public ConvParam<Dtype> {
 
   const float &Momentum() const { return momentum_; }
 
-  void SetNewScale(GType *new_scale) { new_scale_ = new_scale; }
+  void SetNewScale(GType *new_scale) {
+    new_scale_.reset(new_scale, CLImageDeleter<Dtype>());
+  }
 
-  void SetNewBias(GType *new_bias) { new_bias_ = new_bias; }
+  void SetNewBias(GType *new_bias) {
+    new_bias_.reset(new_bias, CLImageDeleter<Dtype>());
+  }
 
-  const GType *NewScale() const { return new_scale_; }
+  const GType *NewScale() const { return new_scale_.get(); }
 
-  const GType *NewBias() const { return new_bias_; }
+  const GType *NewBias() const { return new_bias_.get(); }
 
  protected:
   GType *bias_;
@@ -2128,8 +2137,8 @@ class FusionConvAddBNReluParam : public ConvParam<Dtype> {
   GType *input_variance_;
   float epsilon_;
   float momentum_;
-  GType *new_bias_;
-  GType *new_scale_;
+  std::shared_ptr<GType> new_bias_;
+  std::shared_ptr<GType> new_scale_;
 };
 #endif
 
@@ -2163,14 +2172,7 @@ class FusionConvBNAddReluParam : public ConvParam<Dtype> {
     this->output_ = OpParam::OutFrom<GType>(outputs, *scope);
   }
 
-  ~FusionConvBNAddReluParam() {
-    if (new_bias_) {
-      delete new_bias_;
-    }
-    if (new_scale_) {
-      delete new_scale_;
-    }
-  }
+  ~FusionConvBNAddReluParam() {}
   GType *Bias() const { return bias_; }
 
   const int &Axis() const { return axis_; }
@@ -2187,13 +2189,17 @@ class FusionConvBNAddReluParam : public ConvParam<Dtype> {
 
   const float &Momentum() const { return momentum_; }
 
-  void SetNewScale(GType *new_scale) { new_scale_ = new_scale; }
+  void SetNewScale(GType *new_scale) {
+    new_scale_.reset(new_scale, CLImageDeleter<Dtype>());
+  }
 
-  void SetNewBias(GType *new_bias) { new_bias_ = new_bias; }
+  void SetNewBias(GType *new_bias) {
+    new_bias_.reset(new_bias, CLImageDeleter<Dtype>());
+  }
 
-  const GType *NewScale() const { return new_scale_; }
+  const GType *NewScale() const { return new_scale_.get(); }
 
-  const GType *NewBias() const { return new_bias_; }
+  const GType *NewBias() const { return new_bias_.get(); }
 
  protected:
   GType *bias_;
@@ -2204,8 +2210,8 @@ class FusionConvBNAddReluParam : public ConvParam<Dtype> {
   GType *input_variance_;
   float epsilon_;
   float momentum_;
-  GType *new_bias_;
-  GType *new_scale_;
+  std::shared_ptr<GType> new_bias_;
+  std::shared_ptr<GType> new_scale_;
   std::string keyBNY_;
   std::string keyX_;
   std::string keyY_;
@@ -2244,13 +2250,17 @@ class FusionConvBNParam : public ConvParam<Dtype> {
 
   const float &Momentum() const { return momentum_; }
 
-  void SetNewScale(GType *new_scale) { new_scale_ = new_scale; }
+  void SetNewScale(GType *new_scale) {
+    new_scale_.reset(new_scale, CLImageDeleter<Dtype>());
+  }
 
-  void SetNewBias(GType *new_bias) { new_bias_ = new_bias; }
+  void SetNewBias(GType *new_bias) {
+    new_bias_.reset(new_bias, CLImageDeleter<Dtype>());
+  }
 
-  const GType *NewScale() const { return new_scale_; }
+  const GType *NewScale() const { return new_scale_.get(); }
 
-  const GType *NewBias() const { return new_bias_; }
+  const GType *NewBias() const { return new_bias_.get(); }
 
  protected:
   GType *input_bias_;
@@ -2259,8 +2269,8 @@ class FusionConvBNParam : public ConvParam<Dtype> {
   GType *input_variance_;
   float epsilon_;
   float momentum_;
-  GType *new_bias_;
-  GType *new_scale_;
+  std::shared_ptr<GType> new_bias_;
+  std::shared_ptr<GType> new_scale_;
 };
 #endif
 
@@ -2301,13 +2311,17 @@ class FusionConvAddBNParam : public ConvParam<Dtype> {
 
   const float &Momentum() const { return momentum_; }
 
-  void SetNewScale(GType *new_scale) { new_scale_ = new_scale; }
+  void SetNewScale(GType *new_scale) {
+    new_scale_.reset(new_scale, CLImageDeleter<Dtype>());
+  }
 
-  void SetNewBias(GType *new_bias) { new_bias_ = new_bias; }
+  void SetNewBias(GType *new_bias) {
+    new_bias_.reset(new_bias, CLImageDeleter<Dtype>());
+  }
 
-  const GType *NewScale() const { return new_scale_; }
+  const GType *NewScale() const { return new_scale_.get(); }
 
-  const GType *NewBias() const { return new_bias_; }
+  const GType *NewBias() const { return new_bias_.get(); }
 
  protected:
   GType *bias_;
@@ -2318,8 +2332,8 @@ class FusionConvAddBNParam : public ConvParam<Dtype> {
   GType *input_variance_;
   float epsilon_;
   float momentum_;
-  GType *new_bias_;
-  GType *new_scale_;
+  std::shared_ptr<GType> new_bias_;
+  std::shared_ptr<GType> new_scale_;
 };
 #endif
 
@@ -2343,14 +2357,7 @@ class FusionDWConvBNReluParam : public ConvParam<Dtype> {
     this->output_ = OpParam::OutFrom<GType>(outputs, *scope);
   }
 
-  ~FusionDWConvBNReluParam() {
-    if (new_bias_) {
-      delete new_bias_;
-    }
-    if (new_scale_) {
-      delete new_scale_;
-    }
-  }
+  ~FusionDWConvBNReluParam() {}
 
   const GType *InputBias() const { return input_bias_; }
 
@@ -2364,13 +2371,17 @@ class FusionDWConvBNReluParam : public ConvParam<Dtype> {
 
   const float &Momentum() const { return momentum_; }
 
-  void SetNewScale(GType *new_scale) { new_scale_ = new_scale; }
+  void SetNewScale(GType *new_scale) {
+    new_scale_.reset(new_scale, CLImageDeleter<Dtype>());
+  }
 
-  void SetNewBias(GType *new_bias) { new_bias_ = new_bias; }
+  void SetNewBias(GType *new_bias) {
+    new_bias_.reset(new_bias, CLImageDeleter<Dtype>());
+  }
 
-  const GType *NewScale() const { return new_scale_; }
+  const GType *NewScale() const { return new_scale_.get(); }
 
-  const GType *NewBias() const { return new_bias_; }
+  const GType *NewBias() const { return new_bias_.get(); }
 
  protected:
   GType *input_bias_;
@@ -2379,8 +2390,8 @@ class FusionDWConvBNReluParam : public ConvParam<Dtype> {
   GType *input_variance_;
   float epsilon_;
   float momentum_;
-  GType *new_bias_;
-  GType *new_scale_;
+  std::shared_ptr<GType> new_bias_;
+  std::shared_ptr<GType> new_scale_;
 };
 
 #endif
@@ -2421,14 +2432,7 @@ class FusionConvBNReluParam : public ConvParam<Dtype> {
     this->output_ = OpParam::OutFrom<GType>(outputs, *scope);
   }
 
-  ~FusionConvBNReluParam() {
-    if (new_bias_) {
-      delete new_bias_;
-    }
-    if (new_scale_) {
-      delete new_scale_;
-    }
-  }
+  ~FusionConvBNReluParam() {}
 
   const GType *InputBias() const { return input_bias_; }
 
@@ -2442,13 +2446,17 @@ class FusionConvBNReluParam : public ConvParam<Dtype> {
 
   const float &Momentum() const { return momentum_; }
 
-  void SetNewScale(GType *new_scale) { new_scale_ = new_scale; }
+  void SetNewScale(GType *new_scale) {
+    new_scale_.reset(new_scale, CLImageDeleter<Dtype>());
+  }
 
-  void SetNewBias(GType *new_bias) { new_bias_ = new_bias; }
+  void SetNewBias(GType *new_bias) {
+    new_bias_.reset(new_bias, CLImageDeleter<Dtype>());
+  }
 
-  const GType *NewScale() const { return new_scale_; }
+  const GType *NewScale() const { return new_scale_.get(); }
 
-  const GType *NewBias() const { return new_bias_; }
+  const GType *NewBias() const { return new_bias_.get(); }
 
  protected:
   GType *input_bias_;
@@ -2457,8 +2465,8 @@ class FusionConvBNReluParam : public ConvParam<Dtype> {
   GType *input_variance_;
   float epsilon_;
   float momentum_;
-  GType *new_bias_;
-  GType *new_scale_;
+  std::shared_ptr<GType> new_bias_;
+  std::shared_ptr<GType> new_scale_;
 };
 #endif
 
@@ -2683,13 +2691,17 @@ class FusionDeconvAddBNParam : public ConvTransposeParam<Dtype> {
 
   const bool &IsTest() const { return is_test_; }
 
-  void SetNewScale(RType *new_scale) { new_scale_ = new_scale; }
+  void SetNewScale(RType *new_scale) {
+    new_scale_.reset(new_scale, CLImageDeleter<Dtype>());
+  }
 
-  void SetNewBias(RType *new_bias) { new_bias_ = new_bias; }
+  void SetNewBias(RType *new_bias) {
+    new_bias_.reset(new_bias, CLImageDeleter<Dtype>());
+  }
 
-  const RType *NewScale() const { return new_scale_; }
+  const RType *NewScale() const { return new_scale_.get(); }
 
-  const RType *NewBias() const { return new_bias_; }
+  const RType *NewBias() const { return new_bias_.get(); }
 
  protected:
   RType *output_;
@@ -2700,8 +2712,8 @@ class FusionDeconvAddBNParam : public ConvTransposeParam<Dtype> {
   float epsilon_;
   float momentum_;
   bool is_test_;
-  RType *new_bias_;
-  RType *new_scale_;
+  std::shared_ptr<RType> new_bias_;
+  std::shared_ptr<RType> new_scale_;
 };
 #endif
 #ifdef FUSION_DECONVBNRELU_OP
@@ -2739,13 +2751,17 @@ class FusionDeconvBNReluParam : public ConvTransposeParam<Dtype> {
 
   const bool &IsTest() const { return is_test_; }
 
-  void SetNewScale(RType *new_scale) { new_scale_ = new_scale; }
+  void SetNewScale(RType *new_scale) {
+    new_scale_.reset(new_scale, CLImageDeleter<Dtype>());
+  }
 
-  void SetNewBias(RType *new_bias) { new_bias_ = new_bias; }
+  void SetNewBias(RType *new_bias) {
+    new_bias_.reset(new_bias, CLImageDeleter<Dtype>());
+  }
 
-  const RType *NewScale() const { return new_scale_; }
+  const RType *NewScale() const { return new_scale_.get(); }
 
-  const RType *NewBias() const { return new_bias_; }
+  const RType *NewBias() const { return new_bias_.get(); }
 
  protected:
   RType *output_;
@@ -2756,8 +2772,8 @@ class FusionDeconvBNReluParam : public ConvTransposeParam<Dtype> {
   float epsilon_;
   float momentum_;
   bool is_test_;
-  RType *new_bias_;
-  RType *new_scale_;
+  std::shared_ptr<RType> new_bias_;
+  std::shared_ptr<RType> new_scale_;
 };
 #endif
 #ifdef FUSION_DECONVADDBNRELU_OP
@@ -2796,13 +2812,17 @@ class FusionDeconvAddBNReluParam : public ConvTransposeParam<Dtype> {
 
   const bool &IsTest() const { return is_test_; }
 
-  void SetNewScale(RType *new_scale) { new_scale_ = new_scale; }
+  void SetNewScale(RType *new_scale) {
+    new_scale_.reset(new_scale, CLImageDeleter<Dtype>());
+  }
 
-  void SetNewBias(RType *new_bias) { new_bias_ = new_bias; }
+  void SetNewBias(RType *new_bias) {
+    new_bias_.reset(new_bias, CLImageDeleter<Dtype>());
+  }
 
-  const RType *NewScale() const { return new_scale_; }
+  const RType *NewScale() const { return new_scale_.get(); }
 
-  const RType *NewBias() const { return new_bias_; }
+  const RType *NewBias() const { return new_bias_.get(); }
 
  protected:
   RType *output_;
@@ -2813,8 +2833,8 @@ class FusionDeconvAddBNReluParam : public ConvTransposeParam<Dtype> {
   float epsilon_;
   float momentum_;
   bool is_test_;
-  RType *new_bias_;
-  RType *new_scale_;
+  std::shared_ptr<RType> new_bias_;
+  std::shared_ptr<RType> new_scale_;
 };
 #endif