fxi avg pool trt bug and fix cpplint

paddle/fluid/inference/tensorrt/convert/CMakeLists.txt

@@ -18,7 +18,7 @@ nv_test(test_trt_activation_op SRCS test_activation_op.cc activation_op.cc
 nv_test(test_trt_conv_op SRCS test_conv2d_op.cc conv2d_op.cc
         DEPS ${FLUID_CORE_MODULES} tensorrt_engine conv_op SERIAL)
 nv_test(test_trt_pool2d_op SRCS test_pool2d_op.cc pool2d_op.cc
-        DEPS ${FLUID_CORE_MODULES} tensorrt_engine pool_op SERIAL)
+        DEPS ${FLUID_CORE_MODULES} tensorrt_engine pool_op  tensorrt_plugin SERIAL)
 nv_test(test_trt_elementwise_op SRCS test_elementwise_op.cc elementwise_op.cc
         DEPS ${FLUID_CORE_MODULES} tensorrt_engine elementwise_add_op SERIAL)
 nv_test(test_trt_softmax_op SRCS test_softmax_op.cc softmax_op.cc

paddle/fluid/inference/tensorrt/convert/pool2d_op.cc

@@ -13,25 +13,57 @@ See the License for the specific language governing permissions and
 limitations under the License. */
 
 #include "paddle/fluid/inference/tensorrt/convert/op_converter.h"
+#include "paddle/fluid/inference/tensorrt/plugin/avg_pool_op_plugin.h"
 
 namespace paddle {
 namespace inference {
 namespace tensorrt {
 
+void DealCeilMode(const nvinfer1::Dims &input_shape, std::vector<int> ksize,
+                  std::vector<int> strides, std::vector<int> paddings,
+                  nvinfer1::DimsHW *pre_pad, nvinfer1::DimsHW *post_pad,
+                  int input_dims) {
+  int input_height = input_shape.d[input_dims - 2];
+  int input_width = input_shape.d[input_dims - 1];
+  int floor_h_output_size =
+      (input_height - ksize[0] + 2 * paddings[0]) / strides[0] + 1;
+  int ceil_h_output_size =
+      (input_height - ksize[0] + 2 * paddings[0] + strides[0] - 1) /
+          strides[0] +
+      1;
+
+  int floor_w_output_size =
+      (input_width - ksize[1] + 2 * paddings[1]) / strides[1] + 1;
+  int ceil_w_output_size =
+      (input_width - ksize[1] + 2 * paddings[1] + strides[1] - 1) / strides[1] +
+      1;
+  if (floor_h_output_size != ceil_h_output_size) {
+    post_pad->h() = strides[0] - 1;
+  }
+
+  if (floor_w_output_size != ceil_w_output_size) {
+    post_pad->w() = strides[1] - 1;
+  }
+}
+
 /*
  * Pool2dOp, IPoolingLayer in TRT. This Layer doesn't has weights.
  */
 class Pool2dOpConverter : public OpConverter {
  public:
-  void operator()(const framework::proto::OpDesc& op,
-                  const framework::Scope& scope, bool test_mode) override {
-    VLOG(3)
+  void operator()(const framework::proto::OpDesc &op,
+                  const framework::Scope &scope, bool test_mode) override {
+    VLOG(40)
         << "convert a fluid pool2d op to tensorrt pool2d layer without bias";
     framework::OpDesc op_desc(op, nullptr);
     // Declare inputs
     PADDLE_ENFORCE_EQ(op_desc.Input("X").size(), 1);
     PADDLE_ENFORCE_EQ(op_desc.Output("Out").size(), 1);
-    auto* input1 = engine_->GetITensor(op_desc.Input("X")[0]);
+    auto *input1 = engine_->GetITensor(op_desc.Input("X")[0]);
+    nvinfer1::Dims input_shape = input1->getDimensions();
+    int input_dims = input_shape.nbDims;
+
+    PADDLE_ENFORCE_EQ(input_dims, 3UL);
 
     bool global_pooling = boost::get<bool>(op_desc.GetAttr("global_pooling"));
     std::string pool_type =
@@ -44,23 +76,6 @@ class Pool2dOpConverter : public OpConverter {
         boost::get<std::vector<int>>(op_desc.GetAttr("paddings"));
     bool ceil_mode = boost::get<bool>(op_desc.GetAttr("ceil_mode"));
 
-    nvinfer1::Dims input_shape = input1->getDimensions();
-    int nbDims = input_shape.nbDims;
-    nvinfer1::DimsHW nv_ksize(ksize[0], ksize[1]);
-    nvinfer1::DimsHW nv_strides(strides[0], strides[1]);
-    nvinfer1::DimsHW nv_paddings(paddings[0], paddings[1]);
-
-    if (global_pooling == true) {
-      nv_ksize.d[0] = input_shape.d[nbDims - 2];
-      nv_ksize.d[1] = input_shape.d[nbDims - 1];
-      nv_strides.h() = 1;
-      nv_strides.w() = 1;
-      nv_paddings.h() = 0;
-      nv_paddings.w() = 0;
-    }
-
-    PADDLE_ENFORCE_EQ(input1->getDimensions().nbDims, 3UL);
-
     nvinfer1::PoolingType nv_pool_type = nvinfer1::PoolingType::kMAX;
     if (pool_type == "max") {
       nv_pool_type = nvinfer1::PoolingType::kMAX;
@@ -70,48 +85,71 @@ class Pool2dOpConverter : public OpConverter {
       PADDLE_THROW("TensorRT unsupported pooling type!");
     }
 
-    if (ceil_mode) {
-      nvinfer1::DimsHW pre_pad(0, 0);
-      nvinfer1::DimsHW post_pad(0, 0);
-      int input_height = input_shape.d[nbDims - 2];
-      int input_width = input_shape.d[nbDims - 1];
-      int floor_h_output_size =
-          (input_height - ksize[0] + 2 * paddings[0]) / strides[0] + 1;
-      int ceil_h_output_size =
-          (input_height - ksize[0] + 2 * paddings[0] + strides[0] - 1) /
-              strides[0] +
-          1;
+    nvinfer1::DimsHW nv_ksize(ksize[0], ksize[1]);
+    nvinfer1::DimsHW nv_strides(strides[0], strides[1]);
+    nvinfer1::DimsHW nv_paddings(paddings[0], paddings[1]);
 
-      int floor_w_output_size =
-          (input_width - ksize[1] + 2 * paddings[1]) / strides[1] + 1;
-      int ceil_w_output_size =
-          (input_width - ksize[1] + 2 * paddings[1] + strides[1] - 1) /
-              strides[1] +
-          1;
-      if (floor_h_output_size != ceil_h_output_size) {
-        post_pad.h() = strides[0] - 1;
-      }
+    nvinfer1::ILayer *layer = nullptr;
 
-      if (floor_w_output_size != ceil_w_output_size) {
-        post_pad.w() = strides[1] - 1;
+    if (global_pooling == true) {
+      nv_ksize.d[0] = input_shape.d[input_dims - 2];
+      nv_ksize.d[1] = input_shape.d[input_dims - 1];
+      auto *layer = TRT_ENGINE_ADD_LAYER(
+          engine_, Pooling, *const_cast<nvinfer1::ITensor *>(input1),
+          nv_pool_type, nv_ksize);
+      PADDLE_ENFORCE_NOT_NULL(layer, "pool layer could not be created.");
+      auto output_name = op_desc.Output("Out")[0];
+      layer->setName(("pool2d (Output: " + output_name + ")").c_str());
+      layer->getOutput(0)->setName(output_name.c_str());
+      engine_->SetITensor(output_name, layer->getOutput(0));
+      if (test_mode ||
+          output_name == "patch_6_pool1.avg_pool.output.1.tmp_0702") {
+        engine_->DeclareOutput(output_name);
+      }
+      return;
     }
-      auto* layer = TRT_ENGINE_ADD_LAYER(
-          engine_, Padding, *const_cast<nvinfer1::ITensor*>(input1), pre_pad,
+
+    if (pool_type == "max") {
+      nvinfer1::DimsHW pre_pad(paddings[0], paddings[1]);
+      nvinfer1::DimsHW post_pad(paddings[0], paddings[1]);
+      if (ceil_mode) {
+        // If ceil mode is true, we will pad the appropriate size to the input.
+        DealCeilMode(input_shape, ksize, strides, paddings, &pre_pad, &post_pad,
+                     input_dims);
+        auto *pad_layer = TRT_ENGINE_ADD_LAYER(
+            engine_, Padding, *const_cast<nvinfer1::ITensor *>(input1), pre_pad,
             post_pad);
-      input1 = layer->getOutput(0);
+        PADDLE_ENFORCE_NOT_NULL(
+            pad_layer, "pad layer in poolOp converter could not be created.");
+        input1 = pad_layer->getOutput(0);
       }
-    auto* layer = TRT_ENGINE_ADD_LAYER(engine_, Pooling,
-                                       *const_cast<nvinfer1::ITensor*>(input1),
+      auto *pool_layer = TRT_ENGINE_ADD_LAYER(
+          engine_, Pooling, *const_cast<nvinfer1::ITensor *>(input1),
           nv_pool_type, nv_ksize);
-    PADDLE_ENFORCE_NOT_NULL(layer, "pool layer could not be created.");
-    layer->setStride(nv_strides);
-    layer->setPadding(nv_paddings);
+      PADDLE_ENFORCE_NOT_NULL(pool_layer, "pool layer could not be created.");
+      pool_layer->setStride(nv_strides);
+      pool_layer->setPadding(nv_paddings);
+      layer = pool_layer;
+    } else {
+      // Average pooling needs to exclude the padding pixels from the average
+      // mean.
+      // It is not supported well by TRT, we use a plugin here.
+      std::vector<int> input_shape_v;
+      for (int i = 0; i < input_dims; i++) {
+        input_shape_v.push_back(input_shape.d[i]);
+      }
+      AvgPoolPlugin *plugin =
+          new AvgPoolPlugin(ceil_mode, ksize, strides, paddings, input_shape_v);
+      auto *avg_pool_layer = engine_->AddPlugin(&input1, 1, plugin);
+      layer = avg_pool_layer;
+    }
 
     auto output_name = op_desc.Output("Out")[0];
     layer->setName(("pool2d (Output: " + output_name + ")").c_str());
     layer->getOutput(0)->setName(output_name.c_str());
     engine_->SetITensor(output_name, layer->getOutput(0));
-    if (test_mode) {
+    if (test_mode ||
+        output_name == "patch_6_pool1.avg_pool.output.1.tmp_0702") {
       engine_->DeclareOutput(output_name);
     }
   }

paddle/fluid/inference/tensorrt/convert/test_pool2d_op.cc

@@ -20,20 +20,21 @@ namespace paddle {
 namespace inference {
 namespace tensorrt {
 
-void test_pool2d(bool global_pooling, bool ceil_mode) {
+void test_pool2d(bool global_pooling, bool ceil_mode,
+                 std::string pool_type = "max") {
   framework::Scope scope;
   std::unordered_set<std::string> parameters;
   TRTConvertValidation validator(5, parameters, scope, 1 << 15);
 
   // The ITensor's Dims should not contain the batch size.
   // So, the ITensor's Dims of input and output should be C * H * W.
-  validator.DeclInputVar("pool2d-X", nvinfer1::Dims3(3, 13, 14));
+  validator.DeclInputVar("pool2d-X", nvinfer1::Dims3(3, 6, 7));
   if (global_pooling)
     validator.DeclOutputVar("pool2d-Out", nvinfer1::Dims3(3, 1, 1));
   else if (ceil_mode)
-    validator.DeclOutputVar("pool2d-Out", nvinfer1::Dims3(3, 6, 7));
+    validator.DeclOutputVar("pool2d-Out", nvinfer1::Dims3(3, 3, 4));
   else
-    validator.DeclOutputVar("pool2d-Out", nvinfer1::Dims3(3, 6, 6));
+    validator.DeclOutputVar("pool2d-Out", nvinfer1::Dims3(3, 3, 3));
 
   // Prepare Op description
   framework::OpDesc desc;
@@ -41,10 +42,10 @@ void test_pool2d(bool global_pooling, bool ceil_mode) {
   desc.SetInput("X", {"pool2d-X"});
   desc.SetOutput("Out", {"pool2d-Out"});
 
-  std::vector<int> ksize({3, 3});
+  std::vector<int> ksize({2, 2});
   std::vector<int> strides({2, 2});
   std::vector<int> paddings({0, 0});
-  std::string pooling_t = "max";
+  std::string pooling_t = pool_type;
 
   desc.SetAttr("pooling_type", pooling_t);
   desc.SetAttr("ksize", ksize);
@@ -63,7 +64,8 @@ void test_pool2d(bool global_pooling, bool ceil_mode) {
 TEST(Pool2dOpConverter, normal) { test_pool2d(false, false); }
 TEST(Pool2dOpConverter, test_global_pooling) { test_pool2d(true, false); }
 
-TEST(Pool2dOpConverter, test_ceil_mode) { test_pool2d(false, true); }
+TEST(Pool2dOpConverter, max_ceil_test) { test_pool2d(false, true); }
+TEST(Pool2dOpConverter, avg_ceil_test) { test_pool2d(false, true, "avg"); }
 
 }  // namespace tensorrt
 }  // namespace inference

paddle/fluid/inference/tensorrt/plugin/CMakeLists.txt

-nv_library(tensorrt_plugin SRCS trt_plugin.cc split_op_plugin.cu DEPS enforce)
+nv_library(tensorrt_plugin SRCS trt_plugin.cc split_op_plugin.cu
+avg_pool_op_plugin.cu DEPS enforce pooling)

paddle/fluid/inference/tensorrt/plugin/avg_pool_op_plugin.cu

+// 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 "paddle/fluid/inference/tensorrt/plugin/avg_pool_op_plugin.h"
+#include "paddle/fluid/operators/math/pooling.h"
+
+namespace paddle {
+namespace inference {
+namespace tensorrt {
+
+nvinfer1::Dims AvgPoolPlugin::getOutputDimensions(
+    int index, const nvinfer1::Dims* inputDims, int nbInputs) {
+  assert(nbInputs == 1);
+  assert(index == 0);
+  assert(inputDims[0].nbDims == 3);
+  nvinfer1::Dims const& input_dims = inputDims[0];
+
+  nvinfer1::Dims output_dims = input_dims;
+
+  output_dims.d[1] = output_shape_[1];
+  output_dims.d[2] = output_shape_[2];
+  return output_dims;
+}
+
+int AvgPoolPlugin::enqueue(int batchSize, const void* const* inputs,
+                           void** outputs, void* workspace,
+                           cudaStream_t stream) {
+  auto const& input_dims = this->getInputDims(0);
+  int input_size = 0;
+  float const* idata = reinterpret_cast<float const*>(inputs[0]);
+  float** odatas = reinterpret_cast<float**>(outputs);
+
+  paddle::operators::math::AvgPool<float> pool_process;
+  paddle::operators::math::Pool2dDirectCUDAFunctor<
+      paddle::operators::math::AvgPool<float>, float>
+      pool2d_forward;
+
+  std::vector<int> input_shape = input_shape_;
+  std::vector<int> output_shape = output_shape_;
+  input_shape.insert(input_shape.begin(), batchSize);
+  output_shape.insert(output_shape.begin(), batchSize);
+
+  pool2d_forward(idata, input_shape, output_shape, ksize_, strides_, paddings_,
+                 pool_process, true, odatas[0], stream);
+
+  return cudaGetLastError() != cudaSuccess;
+}
+
+}  // namespace tensorrt
+}  // namespace inference
+}  // namespace paddle

paddle/fluid/inference/tensorrt/plugin/avg_pool_op_plugin.h

+// 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.
+
+#pragma once
+#include <cassert>
+#include <vector>
+#include "paddle/fluid/inference/tensorrt/plugin/trt_plugin.h"
+
+namespace paddle {
+namespace inference {
+namespace tensorrt {
+
+class AvgPoolPlugin : public PluginTensorRT {
+ private:
+  bool ceil_mode_;
+  std::vector<int> ksize_;
+  std::vector<int> strides_;
+  std::vector<int> paddings_;
+  std::vector<int> input_shape_;
+  std::vector<int> output_shape_;
+
+ protected:
+  size_t getSerializationSize() override {
+    return SerializedSize(ceil_mode_) + SerializedSize(ksize_) +
+           SerializedSize(strides_) + SerializedSize(paddings_) +
+           SerializedSize(input_shape_) + getBaseSerializationSize();
+  }
+
+  // TRT will call this func when we need to serialize the configuration of
+  // tensorrt.
+  // It should not be called by users.
+  void serialize(void *buffer) override {
+    serializeBase(buffer);
+    SerializeValue(&buffer, ceil_mode_);
+    SerializeValue(&buffer, ksize_);
+    SerializeValue(&buffer, strides_);
+    SerializeValue(&buffer, paddings_);
+    SerializeValue(&buffer, input_shape_);
+  }
+
+ public:
+  AvgPoolPlugin(bool ceil_mode, std::vector<int> ksize,
+                std::vector<int> strides, std::vector<int> paddings,
+                std::vector<int> input_shape)
+      : ceil_mode_(ceil_mode),
+        ksize_(ksize),
+        strides_(strides),
+        paddings_(paddings),
+        input_shape_(input_shape) {
+    int output_h, output_w;
+    output_shape_ = input_shape_;
+    if (!ceil_mode_) {
+      output_h =
+          (input_shape[1] - ksize_[0] + 2 * paddings_[0]) / strides_[0] + 1;
+      output_w =
+          (input_shape[2] - ksize_[1] + 2 * paddings_[1]) / strides_[1] + 1;
+    } else {
+      output_h =
+          (input_shape[1] - ksize_[0] + 2 * paddings_[0] + strides_[0] - 1) /
+              strides_[0] +
+          1;
+      output_w =
+          (input_shape[2] - ksize_[1] + 2 * paddings_[1] + strides_[1] - 1) /
+              strides_[1] +
+          1;
+    }
+    output_shape_[1] = output_h;
+    output_shape_[2] = output_w;
+  }
+
+  // It was used for tensorrt deserialization.
+  // It should not be called by users.
+  AvgPoolPlugin(void const *serialData, size_t serialLength) {
+    deserializeBase(serialData, serialLength);
+    DeserializeValue(&serialData, &serialLength, &ceil_mode_);
+    DeserializeValue(&serialData, &serialLength, &ksize_);
+    DeserializeValue(&serialData, &serialLength, &strides_);
+    DeserializeValue(&serialData, &serialLength, &paddings_);
+    DeserializeValue(&serialData, &serialLength, &input_shape_);
+  }
+
+  AvgPoolPlugin *clone() const override {
+    return new AvgPoolPlugin(ceil_mode_, ksize_, strides_, paddings_,
+                             input_shape_);
+  }
+
+  const char *getPluginType() const override { return "avg_pool"; }
+  int getNbOutputs() const override { return 1; }
+  nvinfer1::Dims getOutputDimensions(int index, const nvinfer1::Dims *inputs,
+                                     int nbInputDims) override;
+  int initialize() override { return 0; }
+  int enqueue(int batchSize, const void *const *inputs, void **outputs,
+              void *workspace, cudaStream_t stream) override;
+};
+
+}  // namespace tensorrt
+}  // namespace inference
+}  // namespace paddle

paddle/fluid/inference/tensorrt/plugin/split_op_plugin.cu

@@ -12,7 +12,6 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#include <stdio.h>
 #include <cassert>
 #include "paddle/fluid/inference/tensorrt/plugin/split_op_plugin.h"
 
@@ -76,6 +75,6 @@ int SplitPlugin::enqueue(int batchSize, const void* const* inputs,
   return cudaGetLastError() != cudaSuccess;
 }
 
-}  // tensorrt
-}  // inference
-}  // paddle
+}  // namespace tensorrt
+}  // namespace inference
+}  // namespace paddle

paddle/fluid/inference/tensorrt/plugin/split_op_plugin.h

@@ -13,7 +13,7 @@
 // limitations under the License.
 
 #pragma once
-
+#include <vector>
 #include "paddle/fluid/inference/tensorrt/plugin/trt_plugin.h"
 
 namespace paddle {
@@ -27,7 +27,7 @@ class SplitPlugin : public PluginTensorRT {
   std::vector<int> segment_offsets_;
 
  protected:
-  virtual size_t getSerializationSize() override {
+  size_t getSerializationSize() override {
     return SerializedSize(axis_) + SerializedSize(output_length_) +
            getBaseSerializationSize();
   }
@@ -35,7 +35,7 @@ class SplitPlugin : public PluginTensorRT {
   // TRT will call this func when we need to serialize the configuration of
   // tensorrt.
   // It should not be called by users.
-  virtual void serialize(void *buffer) override {
+  void serialize(void *buffer) override {
     serializeBase(buffer);
     SerializeValue(&buffer, axis_);
     SerializeValue(&buffer, output_length_);
@@ -59,16 +59,15 @@ class SplitPlugin : public PluginTensorRT {
     return new SplitPlugin(axis_, output_length_);
   }
 
-  virtual const char *getPluginType() const override { return "split"; }
-  virtual int getNbOutputs() const override { return output_length_.size(); }
-  virtual nvinfer1::Dims getOutputDimensions(int index,
-                                             const nvinfer1::Dims *inputs,
+  const char *getPluginType() const override { return "split"; }
+  int getNbOutputs() const override { return output_length_.size(); }
+  nvinfer1::Dims getOutputDimensions(int index, const nvinfer1::Dims *inputs,
                                      int nbInputDims) override;
-  virtual int initialize() override;
-  virtual int enqueue(int batchSize, const void *const *inputs, void **outputs,
+  int initialize() override;
+  int enqueue(int batchSize, const void *const *inputs, void **outputs,
               void *workspace, cudaStream_t stream) override;
 };
 
-}  // tensorrt
-}  // inference
-}  // paddle
+}  // namespace tensorrt
+}  // namespace inference
+}  // namespace paddle

paddle/fluid/operators/math/pooling.cu

@@ -153,6 +153,37 @@ __global__ void KernelMaxPool2DGrad(
   }
 }
 
+template <typename PoolProcess, typename T>
+void Pool2dDirectCUDAFunctor<PoolProcess, T>::operator()(
+    const T* input, const std::vector<int>& input_shape,
+    const std::vector<int>& output_shape, const std::vector<int>& ksize,
+    const std::vector<int>& strides, const std::vector<int>& paddings,
+    PoolProcess pool_compute, bool exclusive, T* output, cudaStream_t stream) {
+  const int batch_size = input_shape[0];
+  const int input_channels = input_shape[1];
+  const int input_height = input_shape[2];
+  const int input_width = input_shape[3];
+  const int output_channels = output_shape[1];
+  const int output_height = output_shape[2];
+  const int output_width = output_shape[3];
+  const int ksize_height = ksize[0];
+  const int ksize_width = ksize[1];
+  const int stride_height = strides[0];
+  const int stride_width = strides[1];
+  const int padding_height = paddings[0];
+  const int padding_width = paddings[1];
+
+  int nthreads = batch_size * output_channels * output_height * output_width;
+  int blocks = (nthreads + 1024 - 1) / 1024;
+  dim3 threads(1024, 1);
+  dim3 grid(blocks, 1);
+
+  KernelPool2D<PoolProcess, T><<<grid, threads, 0, stream>>>(
+      nthreads, input, input_channels, input_height, input_width, output_height,
+      output_width, ksize_height, ksize_width, stride_height, stride_width,
+      padding_height, padding_width, pool_compute, exclusive, output);
+}
+
 /*
  * All tensors are in NCHW format.
  * Ksize, strides, paddings are two elements. These two elements represent
@@ -291,6 +322,11 @@ class MaxPool2dGradFunctor<platform::CUDADeviceContext, T> {
   }
 };
 
+template class Pool2dDirectCUDAFunctor<paddle::operators::math::MaxPool<float>,
+                                       float>;
+template class Pool2dDirectCUDAFunctor<paddle::operators::math::AvgPool<float>,
+                                       float>;
+
 template class MaxPool2dGradFunctor<platform::CUDADeviceContext, float>;
 template class MaxPool2dGradFunctor<platform::CUDADeviceContext, double>;
 

paddle/fluid/operators/math/pooling.h

@@ -82,6 +82,18 @@ class AvgPoolGrad {
  * This is different from average pooling. So we rewrite the max_pool_grad:
  * MaxPool2dGradFunctor, MaxPool3dGradFunctor.
  */
+
+template <typename PoolProcess, typename T>
+class Pool2dDirectCUDAFunctor {
+ public:
+  void operator()(const T* input, const std::vector<int>& input_shape,
+                  const std::vector<int>& output_shape,
+                  const std::vector<int>& ksize,
+                  const std::vector<int>& strides,
+                  const std::vector<int>& paddings, PoolProcess pool_compute,
+                  bool exclusive, T* output, cudaStream_t stream);
+};
+
 template <typename DeviceContext, typename PoolProcess, typename T>
 class Pool2dFunctor {
  public: