tensorrt convert init

paddle/fluid/inference/tensorrt/CMakeLists.txt

@@ -1,4 +1,4 @@
-if(WITH_TESTING)
-  nv_test(test_tensorrt SRCS test_tensorrt.cc DEPS dynload_cuda device_context dynamic_loader)
-  nv_test(test_tensorrt_engine SRCS test_engine.cc engine.cc DEPS dynload_cuda)
-endif()
+nv_test(test_tensorrt SRCS test_tensorrt.cc DEPS dynload_cuda device_context dynamic_loader)
+nv_test(test_tensorrt_engine SRCS test_engine.cc engine.cc DEPS dynload_cuda)
+set(ENGINE_FILE ${CMAKE_CURRENT_SOURCE_DIR}/engine.cc)
+add_subdirectory(convert)

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

@@ -0,0 +1,3 @@
+nv_test(test_tensorrt_op_converter SRCS test_op_converter.cc mul_op.cc conv2d_op.cc DEPS ${FLUID_CORE_MODULES})
+nv_test(test_tensorrt_activation_op SRCS test_activation_op.cc ${ENGINE_FILE} activation_op.cc 
+  DEPS ${FLUID_CORE_MODULES} activation_op)

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

@@ -0,0 +1,40 @@
+/* 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/convert/op_converter.h"
+
+namespace paddle {
+namespace inference {
+namespace tensorrt {
+
+class ReluOpConverter : public OpConverter {
+ public:
+  ReluOpConverter() {}
+  void operator()(const framework::OpDesc& op) override {
+    LOG(INFO) << "convert a fluid relu op to tensorrt activation layer whose "
+                 "type is Relu";
+    const nvinfer1::ITensor* input_tensor =
+        engine_->GetITensor(op.Input("X")[0]);
+    nvinfer1::IActivationLayer* layer = TRT_ENGINE_ADD_LAYER(
+        engine_, Activation, *const_cast<nvinfer1::ITensor*>(input_tensor),
+        nvinfer1::ActivationType::kRELU);
+    engine_->SetITensor(op.Output("Out")[0], layer->getOutput(0));
+  }
+};
+
+REGISTER_TRT_OP_CONVERTER(relu, ReluOpConverter);
+
+}  // namespace tensorrt
+}  // namespace inference
+}  // namespace paddle

paddle/fluid/inference/tensorrt/convert/conv2d_op.cc

@@ -0,0 +1,34 @@
+/* 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/convert/op_converter.h"
+
+namespace paddle {
+namespace inference {
+namespace tensorrt {
+
+class Conv2dOpConverter : public OpConverter {
+ public:
+  Conv2dOpConverter() {}
+  void operator()(const framework::OpDesc& op) override {
+    LOG(INFO)
+        << "convert a fluid conv2d op to tensorrt conv layer without bias";
+  }
+};
+
+REGISTER_TRT_OP_CONVERTER(conv2d, Conv2dOpConverter);
+
+}  // namespace tensorrt
+}  // namespace inference
+}  // namespace paddle

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

@@ -0,0 +1,33 @@
+/* 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/convert/op_converter.h"
+
+namespace paddle {
+namespace inference {
+namespace tensorrt {
+
+class MulOpConverter : public OpConverter {
+ public:
+  MulOpConverter() {}
+  void operator()(const framework::OpDesc& op) override {
+    LOG(INFO) << "convert a fluid mul op to tensorrt fc layer without bias";
+  }
+};
+
+REGISTER_TRT_OP_CONVERTER(mul, MulOpConverter);
+
+}  // namespace tensorrt
+}  // namespace inference
+}  // namespace paddle

paddle/fluid/inference/tensorrt/convert/op_converter.h

@@ -0,0 +1,91 @@
+/* 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 <string>
+#include <unordered_map>
+#include "paddle/fluid/framework/block_desc.h"
+#include "paddle/fluid/framework/scope.h"
+#include "paddle/fluid/inference/tensorrt/engine.h"
+
+namespace paddle {
+namespace inference {
+namespace tensorrt {
+
+/*
+ * Convert Op from Fluid to TensorRT Engine.
+ */
+class OpConverter {
+ public:
+  OpConverter() {}
+  virtual void operator()(const framework::OpDesc& op) {}
+
+  void Execute(const framework::OpDesc& op, TensorRTEngine* engine) {
+    std::string type = op.Type();
+    auto it = converters_.find(type);
+    PADDLE_ENFORCE(it != converters_.end(), "no OpConverter for optype [%s]",
+                   type);
+    it->second->SetEngine(engine);
+    (*it->second)(op);
+  }
+
+  static OpConverter& Global() {
+    static auto* x = new OpConverter;
+    return *x;
+  }
+
+  template <typename T>
+  void Register(const std::string& key) {
+    converters_[key] = new T;
+  }
+
+  // convert fluid op to tensorrt layer
+  void ConvertOp(const framework::OpDesc& op, TensorRTEngine* engine) {
+    OpConverter::Global().Execute(op, engine);
+  }
+
+  // convert fluid block to tensorrt network
+  void ConvertBlock(const framework::BlockDesc& block, TensorRTEngine* engine) {
+    for (auto op : block.AllOps()) {
+      OpConverter::Global().Execute(*op, engine);
+    }
+  }
+
+  void SetEngine(TensorRTEngine* engine) { engine_ = engine; }
+
+  virtual ~OpConverter() {}
+
+  // TensorRT engine
+  TensorRTEngine* engine_{nullptr};
+
+ private:
+  // registered op converter map, whose key is the fluid op type, and value is
+  // the pointer position of corresponding OpConverter class.
+  std::unordered_map<std::string, OpConverter*> converters_;
+  // fluid inference scope
+  framework::Scope* scope_{nullptr};
+};
+
+#define REGISTER_TRT_OP_CONVERTER(op_type__, Converter__)      \
+  struct trt_##op_type__##_converter {                         \
+    trt_##op_type__##_converter() {                            \
+      OpConverter::Global().Register<Converter__>(#op_type__); \
+    }                                                          \
+  };                                                           \
+  trt_##op_type__##_converter trt_##op_type__##_converter__;
+
+}  // namespace tensorrt
+}  // namespace inference
+}  // namespace paddle

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

@@ -0,0 +1,94 @@
+/* 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 <gtest/gtest.h>
+#include "paddle/fluid/framework/lod_tensor.h"
+#include "paddle/fluid/framework/op_registry.h"
+#include "paddle/fluid/framework/program_desc.h"
+#include "paddle/fluid/inference/tensorrt/convert/op_converter.h"
+#include "paddle/fluid/platform/device_context.h"
+#include "paddle/fluid/platform/place.h"
+
+USE_OP(relu);
+
+namespace paddle {
+namespace inference {
+namespace tensorrt {
+
+void compare(float input, float expect) {
+  framework::Scope scope;
+  platform::CUDAPlace place;
+  platform::CUDADeviceContext ctx(place);
+
+  // init fluid op and variable
+  auto x_var = scope.Var("X");
+  auto x_tensor = x_var->GetMutable<framework::LoDTensor>();
+  x_tensor->Resize({1, 1});
+  std::vector<float> init;
+  init.push_back(input);
+  framework::TensorFromVector(init, ctx, x_tensor);
+
+  auto out_var = scope.Var("Out");
+  auto out_tensor = out_var->GetMutable<framework::LoDTensor>();
+  out_tensor->Resize({1, 1});
+  out_tensor->mutable_data<float>(place);
+
+  framework::OpDesc op_desc;
+  op_desc.SetType("relu");
+  op_desc.SetInput("X", {"X"});
+  op_desc.SetOutput("Out", {"Out"});
+
+  auto relu_op = framework::OpRegistry::CreateOp(op_desc);
+
+  // run fluid op
+  relu_op->Run(scope, place);
+  std::vector<float> out1;
+  framework::TensorToVector(*out_tensor, ctx, &out1);
+
+  // init tensorrt op
+  cudaStream_t stream;
+  ASSERT_EQ(0, cudaStreamCreate(&stream));
+  TensorRTEngine* engine = new TensorRTEngine(1, 1 << 10, &stream);
+  engine->InitNetwork();
+  engine->DeclareInput("X", nvinfer1::DataType::kFLOAT,
+                       nvinfer1::DimsCHW{1, 1, 1});
+
+  OpConverter op_converter;
+  op_converter.ConvertOp(op_desc, engine);
+
+  engine->DeclareOutput("Out");
+  engine->FreezeNetwork();
+  engine->SetInputFromCPU("X", &input, 1 * sizeof(float));
+
+  // run tensorrt op
+  engine->Execute(1);
+
+  float out2;
+  engine->GetOutputInCPU("Out", &out2, 1 * sizeof(float));
+
+  ASSERT_EQ(out1[0], out2);
+  ASSERT_EQ(out1[0], expect);
+
+  delete engine;
+  cudaStreamDestroy(stream);
+}
+
+TEST(OpConverter, ConvertRelu) {
+  compare(1, 1);   // relu(1) = 1
+  compare(-5, 0);  // relu(-5) = 0
+}
+
+}  // namespace tensorrt
+}  // namespace inference
+}  // namespace paddle

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

@@ -0,0 +1,37 @@
+/* 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 <gtest/gtest.h>
+#include "paddle/fluid/framework/program_desc.h"
+#include "paddle/fluid/inference/tensorrt/convert/op_converter.h"
+
+namespace paddle {
+namespace inference {
+namespace tensorrt {
+
+TEST(BlockConverter, ConvertBlock) {
+  framework::ProgramDesc prog;
+  auto* block = prog.MutableBlock(0);
+  auto* mul_op = block->AppendOp();
+  mul_op->SetType("mul");
+  auto* conv2d_op = block->AppendOp();
+  conv2d_op->SetType("conv2d");
+
+  OpConverter converter;
+  converter.ConvertBlock(*block, nullptr /*TensorRTEngine*/);
+}
+
+}  // namespace tensorrt
+}  // namespace inference
+}  // namespace paddle