Merge remote-tracking branch 'baidu/develop' into implement_basic_OpKernel

cmake/generic.cmake

@@ -290,8 +290,22 @@ function(go_library TARGET_NAME)
     set(${TARGET_NAME}_LIB_NAME "${CMAKE_STATIC_LIBRARY_PREFIX}${TARGET_NAME}${CMAKE_STATIC_LIBRARY_SUFFIX}" CACHE STRING "output library name for target ${TARGET_NAME}")
   endif()
 
-  # Add dummy code to support `make target_name` under Terminal Command
   set(dummyfile ${CMAKE_CURRENT_BINARY_DIR}/${TARGET_NAME}_dummy.c)
+
+  # This custom command will always run since it depends on a not
+  # existing file.
+  add_custom_command(
+    OUTPUT dummy_rebulid_${TARGET_NAME}
+    COMMAND cmake -E touch ${dummyfile}
+    )
+  # Create a custom target that depends on the custom command output
+  # file, so the custom command can be referenced as a dependency by
+  # `add_dependencies`.
+  add_custom_target(rebuild_${TARGET_NAME}
+    DEPENDS dummy_rebulid_${TARGET_NAME}
+    )
+
+  # Add dummy code to support `make target_name` under Terminal Command
   file(WRITE ${dummyfile} "const char * dummy = \"${dummyfile}\";")
   if (go_library_SHARED OR go_library_shared)
     add_library(${TARGET_NAME} SHARED ${dummyfile})
@@ -302,6 +316,12 @@ function(go_library TARGET_NAME)
     add_dependencies(${TARGET_NAME} ${go_library_DEPS})
   endif(go_library_DEPS)
 
+  # The "source file" of the library is `${dummyfile}` which never
+  # change, so the target will never rebuild. Make the target depends
+  # on the custom command that touches the library "source file", so
+  # rebuild will always happen.
+  add_dependencies(${TARGET_NAME} rebuild_${TARGET_NAME})
+
   set(${TARGET_NAME}_LIB_PATH "${CMAKE_CURRENT_BINARY_DIR}/${${TARGET_NAME}_LIB_NAME}" CACHE STRING "output library path for target ${TARGET_NAME}")
 
   file(GLOB GO_SOURCE RELATIVE "${CMAKE_CURRENT_SOURCE_DIR}" "*.go")

paddle/framework/CMakeLists.txt

 # ddim lib
-cc_library(enforce SRCS enforce.cc DEPS glog)
-cc_test(enforce_test SRCS enforce_test.cc DEPS enforce)
 cc_library(ddim SRCS ddim.cc DEPS eigen3)
 cc_test(ddim_test SRCS ddim_test.cc DEPS ddim)
 nv_test(dim_test SRCS dim_test.cu DEPS ddim)
 
-cc_library(tensor SRCS tensor.cc DEPS ddim place enforce paddle_memory)
+cc_library(tensor SRCS tensor.cc DEPS ddim place paddle_memory)
 cc_test(tensor_test SRCS tensor_test.cc DEPS tensor)
 cc_test(eigen_test SRCS eigen_test.cc DEPS tensor)
 
 cc_test(variable_test SRCS variable_test.cc)
 cc_test(scope_test SRCS scope_test.cc)
+
 proto_library(attr_type SRCS attr_type.proto)
 proto_library(op_proto SRCS op_proto.proto DEPS attr_type)
-cc_test(op_proto_test SRCS op_proto_test.cc DEPS op_proto protobuf)
 proto_library(op_desc SRCS op_desc.proto DEPS attr_type)
+cc_test(op_proto_test SRCS op_proto_test.cc DEPS op_proto protobuf)
 cc_test(op_desc_test SRCS op_desc_test.cc DEPS op_desc protobuf)
 
 cc_library(operator SRCS operator.cc DEPS op_desc device_context tensor)
 cc_test(operator_test SRCS operator_test.cc DEPS operator op_registry)
 
-cc_library(op_registry SRCS op_registry.cc DEPS op_proto op_desc enforce)
+cc_library(op_registry SRCS op_registry.cc DEPS op_proto op_desc)
 cc_test(op_registry_test SRCS op_registry_test.cc DEPS op_registry operator)
 
 py_proto_compile(framework_py_proto SRCS attr_type.proto op_proto.proto op_desc.proto)

paddle/framework/attr_checker.h

@@ -6,7 +6,7 @@
 #include <unordered_map>
 #include <unordered_set>
 #include <vector>
-#include "paddle/framework/enforce.h"
+#include "paddle/platform/enforce.h"
 
 namespace paddle {
 namespace framework {

paddle/framework/ddim.cc

@@ -13,7 +13,7 @@ See the License for the specific language governing permissions and
 limitations under the License. */
 
 #include "paddle/framework/ddim.h"
-#include "paddle/framework/enforce.h"
+#include "paddle/platform/enforce.h"
 
 namespace paddle {
 namespace framework {

paddle/framework/ddim.h

@@ -19,7 +19,7 @@ limitations under the License. */
 #include <stdexcept>
 #include <vector>
 #include "paddle/framework/dim.h"
-#include "paddle/framework/enforce.h"
+#include "paddle/platform/enforce.h"
 #include "unsupported/Eigen/CXX11/Tensor"
 
 namespace paddle {

paddle/framework/enforce.cc

-/* Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserve.
-
-   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/framework/enforce.h"

paddle/framework/enforce.h

-/* Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserve.
-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 <glog/logging.h>
-#include <paddle/string/printf.h>
-#include <exception>
-#include <sstream>
-
-namespace paddle {
-namespace framework {
-
-/**
- * @brief Enforce exception. Inherits std::exception
- *
- * All enforce condition not met, will throw an EnforceNotMet exception.
- */
-class EnforceNotMet : public std::exception {
- public:
-  EnforceNotMet(const std::string& msg, const char* file, int fileline) {
-    std::ostringstream sout;
-    sout << msg << " at [" << file << ":" << fileline << "];";
-    all_msg_ = sout.str();
-  }
-
-  const char* what() const noexcept override { return all_msg_.c_str(); }
-
- private:
-  std::string all_msg_;
-};
-
-// From https://stackoverflow.com/questions/30130930/
-// __buildin_expect is in C++ 11 standard. Since the condition which enforced
-// should be true in most situation, it will make the compiler generate faster
-// code by adding `UNLIKELY` macro.
-#define UNLIKELY(condition) __builtin_expect(static_cast<bool>(condition), 0)
-
-/**
- * @brief Throw a EnforceNotMet exception, automatically filled __FILE__ &
- * __LINE__
- *
- * This macro take __VA_ARGS__, user can pass any type if that type can
- * serialize to std::ostream
- */
-#define PADDLE_THROW(...)                                            \
-  do {                                                               \
-    throw ::paddle::framework::EnforceNotMet(                        \
-        ::paddle::string::Sprintf(__VA_ARGS__), __FILE__, __LINE__); \
-  } while (0)
-
-/**
- * @brief Enforce a condition, otherwise throw an EnforceNotMet
- */
-#ifdef NDEBUG
-#define PADDLE_ENFORCE(condition, ...) \
-  do {                                 \
-    if (UNLIKELY(!(condition))) {      \
-      PADDLE_THROW(__VA_ARGS__);       \
-    }                                  \
-  } while (0)
-#else
-#define PADDLE_ENFORCE(condition, ...) \
-  CHECK(condition) << ::paddle::string::Sprintf(__VA_ARGS__);
-#endif
-
-}  // namespace framework
-}  // namespace paddle

paddle/framework/net_op_test.cc

@@ -63,5 +63,5 @@ TEST(OpKernel, all) {
   ASSERT_EQ(2, infer_shape_cnt);
   ASSERT_EQ(2, run_cnt);
 
-  ASSERT_THROW(net->AddOp(op2), paddle::framework::EnforceNotMet);
+  ASSERT_THROW(net->AddOp(op2), std::runtime_error);
 }

paddle/framework/op_registry_test.cc

@@ -91,7 +91,7 @@ TEST(OpRegistry, IllegalAttr) {
   try {
     paddle::framework::OperatorPtr op __attribute__((unused)) =
         paddle::framework::OpRegistry::CreateOp(op_desc);
-  } catch (paddle::framework::EnforceNotMet err) {
+  } catch (std::runtime_error& err) {
     caught = true;
     std::string msg = "larger_than check fail";
     const char* err_msg = err.what();
@@ -138,7 +138,7 @@ TEST(OpRegistry, CustomChecker) {
   try {
     paddle::framework::OperatorPtr op __attribute__((unused)) =
         paddle::framework::OpRegistry::CreateOp(op_desc);
-  } catch (paddle::framework::EnforceNotMet err) {
+  } catch (std::runtime_error& err) {
     caught = true;
     std::string msg = "Attribute 'test_attr' is required!";
     const char* err_msg = err.what();
@@ -157,7 +157,7 @@ TEST(OpRegistry, CustomChecker) {
   try {
     paddle::framework::OperatorPtr op __attribute__((unused)) =
         paddle::framework::OpRegistry::CreateOp(op_desc);
-  } catch (paddle::framework::EnforceNotMet err) {
+  } catch (std::runtime_error& err) {
     caught = true;
     std::string msg = "'test_attr' must be even!";
     const char* err_msg = err.what();
@@ -196,7 +196,7 @@ TEST(ProtoMaker, DuplicatedAttr) {
   pd::OpProto op_proto;
   pd::OpAttrChecker op_checker;
   auto proto_maker = TestAttrProtoMaker(&op_proto, &op_checker);
-  ASSERT_THROW(proto_maker.Validate(), paddle::framework::EnforceNotMet);
+  ASSERT_THROW(proto_maker.Validate(), std::runtime_error);
 }
 
 class TestInOutProtoMaker : public pd::OpProtoAndCheckerMaker {
@@ -212,5 +212,5 @@ TEST(ProtoMaker, DuplicatedInOut) {
   pd::OpProto op_proto;
   pd::OpAttrChecker op_checker;
   auto proto_maker = TestInOutProtoMaker(&op_proto, &op_checker);
-  ASSERT_THROW(proto_maker.Validate(), paddle::framework::EnforceNotMet);
+  ASSERT_THROW(proto_maker.Validate(), std::runtime_error);
 }

paddle/framework/tensor.h

@@ -19,8 +19,8 @@ limitations under the License. */
 #include <memory>
 #include <typeindex>
 #include "paddle/framework/ddim.h"
-#include "paddle/framework/enforce.h"
 #include "paddle/memory/memory.h"
+#include "paddle/platform/enforce.h"
 #include "paddle/platform/place.h"
 #include "unsupported/Eigen/CXX11/Tensor"
 

paddle/framework/tensor_test.cc

@@ -33,7 +33,7 @@ TEST(Tensor, DataAssert) {
   bool caught = false;
   try {
     src_tensor.data<double>();
-  } catch (paddle::framework::EnforceNotMet err) {
+  } catch (std::runtime_error& err) {
     caught = true;
     std::string msg =
         "Tenosr holds no memory. Call Tensor::mutable_data first.";
@@ -107,7 +107,7 @@ TEST(Tensor, ShareDataFrom) {
     bool caught = false;
     try {
       dst_tensor.ShareDataFrom<float>(src_tensor);
-    } catch (EnforceNotMet err) {
+    } catch (std::runtime_error& err) {
       caught = true;
       std::string msg =
           "Tenosr holds no memory. Call Tensor::mutable_data first.";

paddle/memory/detail/system_allocator.cc

@@ -14,7 +14,7 @@ limitations under the License. */
 
 #include "paddle/memory/detail/system_allocator.h"
 #include "paddle/platform/assert.h"
-#include "paddle/platform/error.h"
+#include "paddle/platform/enforce.h"
 #include "paddle/platform/gpu_info.h"
 
 #include <stdlib.h>    // for malloc and free
@@ -128,8 +128,7 @@ void GPUAllocator::Free(void* p, size_t size, size_t index) {
   // process is terminating, in which case we don't care if
   // cudaFree succeeds.
   if (err != cudaErrorCudartUnloading) {
-    platform::throw_on_error(err,
-                             "cudaFree{Host} failed in GPUAllocator::Free.");
+    PADDLE_ENFORCE(err, "cudaFree{Host} failed in GPUAllocator::Free.");
   }
 }
 

paddle/operators/CMakeLists.txt

@@ -51,3 +51,5 @@ op_library(softmax_op SRCS softmax_op.cc softmax_op.cu)
 
 op_library(fc_op SRCS fc_op.cc DEPS mul_op rowwise_add_op sigmoid_op
         softmax_op net)
+
+op_library(sgd_op SRCS sgd_op.cc sgd_op.cu)

paddle/operators/sgd_op.cc

+/* Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserve.
+
+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/operators/sgd_op.h"
+#include "paddle/framework/op_registry.h"
+#include "paddle/framework/tensor.h"
+
+namespace paddle {
+namespace operators {
+
+class SGDOp : public framework::OperatorWithKernel {
+protected:
+  void InferShape(
+      const std::vector<const framework::Tensor *> &inputs,
+      const std::vector<framework::Tensor *> &outputs) const override {
+    PADDLE_ENFORCE(inputs.size() == 2, "Input size of SGDOp must be two");
+    PADDLE_ENFORCE(outputs.size() == 1, "Output size of SGDOp must be one");
+    PADDLE_ENFORCE(inputs[0] != nullptr, "inputs[0] mast be set");
+    PADDLE_ENFORCE(inputs[1] != nullptr, "inputs[1] mast be set");
+    PADDLE_ENFORCE(outputs[0] != nullptr, "outputs[0] mast be set");
+    PADDLE_ENFORCE(inputs[0]->dims() == inputs[1]->dims(),
+                   "Two input of SGD Op's dimension must be same.");
+    outputs[0]->set_dims(inputs[0]->dims());
+  }
+};
+
+class SGDOpMaker : public framework::OpProtoAndCheckerMaker {
+public:
+  SGDOpMaker(framework::OpProto *proto, framework::OpAttrChecker *op_checker)
+      : framework::OpProtoAndCheckerMaker(proto, op_checker) {
+    AddInput("param", "input parameter");
+    AddInput("grad", "input gradient");
+    AddOutput("param_out", "output parameter");
+    AddAttr<float>("learning_rate", "learning rate of sgd");
+    AddComment(R"DOC(
+
+Simplest sgd algorithm.
+
+param_out = param - learning_rate * grad;
+
+)DOC");
+  }
+};
+}  // namespace operators
+}  // namespace paddle
+
+REGISTER_OP(sgd, paddle::operators::SGDOp, paddle::operators::SGDOpMaker);
+typedef paddle::operators::SGDOpKernel<::paddle::platform::CPUPlace, float>
+    SGDOpKernel_CPU_float;
+REGISTER_OP_CPU_KERNEL(sgd, SGDOpKernel_CPU_float);

paddle/operators/sgd_op.cu

+#include "paddle/operators/sgd_op.h"
+#include "paddle/framework/op_registry.h"
+
+typedef paddle::operators::SGDOpKernel<::paddle::platform::GPUPlace, float> SGDOpKernel_GPU_float;
+REGISTER_OP_GPU_KERNEL(sgd, SGDOpKernel_GPU_float);
\ No newline at end of file

paddle/operators/sgd_op.h

+/* Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserve.
+
+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 "glog/logging.h"
+#include "paddle/framework/eigen.h"
+#include "paddle/framework/operator.h"
+
+namespace paddle {
+namespace operators {
+
+template <typename Place, typename T>
+class SGDOpKernel : public framework::OpKernel {
+public:
+  void Compute(const framework::KernelContext& ctx) const override {
+    auto param = ctx.Input("param")->Get<framework::Tensor>();
+    auto grad = ctx.Input("grad")->Get<framework::Tensor>();
+    auto* param_out = ctx.Output(0)->GetMutable<framework::Tensor>();
+    float lr = ctx.op_.GetAttr<float>("learning_rate");
+
+    param_out->mutable_data<T>(ctx.GetPlace());
+
+    framework::EigenVector<T>::Flatten(*param_out)
+        .device(*(ctx.GetEigenDevice<Place>())) =
+        framework::EigenVector<T>::Flatten(param) -
+        lr * framework::EigenVector<T>::Flatten(grad);
+  }
+};
+
+}  // namespace operators
+}  // namespace paddle

paddle/operators/sgd_op_test.cc

+/* Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserve.
+
+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/framework/op_registry.h>
+USE_OP(sgd);
+TEST(SGDOp, GetOpProto) {
+  auto& protos = paddle::framework::OpRegistry::protos();
+  auto it = protos.find("sgd");
+  ASSERT_NE(it, protos.end());
+}

paddle/platform/CMakeLists.txt

@@ -8,6 +8,8 @@ cc_test(place_test SRCS place_test.cc DEPS place glog gflags)
 
 add_subdirectory(dynload)
 
+cc_test(enforce_test SRCS enforce_test.cc)
+
 IF(WITH_GPU)
     set(GPU_CTX_DEPS dynload_cuda dynamic_loader)
 ELSE()

paddle/platform/cpu_info.cc

@@ -22,7 +22,6 @@ limitations under the License. */
 #endif
 
 #include "gflags/gflags.h"
-#include "paddle/platform/error.h"
 
 DEFINE_double(fraction_of_cpu_memory_to_use, 1,
               "Default use 100% of CPU memory for PaddlePaddle,"

paddle/platform/device_context.h

@@ -11,12 +11,13 @@ limitations under the License. */
 
 #pragma once
 
-#include "paddle/framework/enforce.h"
+#include "paddle/platform/enforce.h"
+#include "paddle/platform/place.h"
+
 #ifndef PADDLE_ONLY_CPU
 #include "paddle/platform/dynload/cublas.h"
 #include "paddle/platform/dynload/cudnn.h"
 #include "paddle/platform/dynload/curand.h"
-#include "paddle/platform/error.h"
 #include "paddle/platform/gpu_info.h"
 #define EIGEN_USE_GPU
 #endif
@@ -71,8 +72,7 @@ class CUDADeviceContext : public DeviceContext {
  public:
   explicit CUDADeviceContext(const GPUPlace gpu_place) : gpu_place_(gpu_place) {
     GPUPlaceGuard guard(gpu_place_);
-    paddle::platform::throw_on_error(cudaStreamCreate(&stream_),
-                                     "cudaStreamCreate failed");
+    PADDLE_ENFORCE(cudaStreamCreate(&stream_), "cudaStreamCreate failed");
     eigen_stream_.reset(new Eigen::CudaStreamDevice(&stream_));
     eigen_device_.reset(new Eigen::GpuDevice(eigen_stream_.get()));
   }
@@ -83,8 +83,8 @@ class CUDADeviceContext : public DeviceContext {
   }
 
   void Wait() {
-    paddle::platform::throw_on_error(cudaStreamSynchronize(stream_),
-                                     "cudaStreamSynchronize failed");
+    PADDLE_ENFORCE(cudaStreamSynchronize(stream_),
+                   "cudaStreamSynchronize failed");
   }
 
   cudaStream_t stream() { return stream_; }
@@ -94,12 +94,11 @@ class CUDADeviceContext : public DeviceContext {
   cublasHandle_t cublas_handle() {
     if (!blas_handle_) {
       GPUPlaceGuard guard(gpu_place_);
-      PADDLE_ENFORCE(paddle::platform::dynload::cublasCreate(&blas_handle_) ==
-                         CUBLAS_STATUS_SUCCESS,
+      PADDLE_ENFORCE(paddle::platform::dynload::cublasCreate(&blas_handle_),
                      "cublasCreate failed");
-      PADDLE_ENFORCE(paddle::platform::dynload::cublasSetStream(
-                         blas_handle_, stream_) == CUBLAS_STATUS_SUCCESS,
-                     "cublasSetStream failed");
+      PADDLE_ENFORCE(
+          paddle::platform::dynload::cublasSetStream(blas_handle_, stream_),
+          "cublasSetStream failed");
     }
     return blas_handle_;
   }
@@ -107,12 +106,11 @@ class CUDADeviceContext : public DeviceContext {
   cudnnHandle_t cudnn_handle() {
     if (!dnn_handle_) {
       GPUPlaceGuard guard(gpu_place_);
-      PADDLE_ENFORCE(paddle::platform::dynload::cudnnCreate(&dnn_handle_) ==
-                         CUDNN_STATUS_SUCCESS,
+      PADDLE_ENFORCE(paddle::platform::dynload::cudnnCreate(&dnn_handle_),
                      "cudnnCreate failed");
-      PADDLE_ENFORCE(paddle::platform::dynload::cudnnSetStream(
-                         dnn_handle_, stream_) == CUDNN_STATUS_SUCCESS,
-                     "cudnnSetStream failed");
+      PADDLE_ENFORCE(
+          paddle::platform::dynload::cudnnSetStream(dnn_handle_, stream_),
+          "cudnnSetStream failed");
     }
     return dnn_handle_;
   }
@@ -121,16 +119,15 @@ class CUDADeviceContext : public DeviceContext {
     if (!rand_generator_) {
       GPUPlaceGuard guard(gpu_place_);
       PADDLE_ENFORCE(paddle::platform::dynload::curandCreateGenerator(
-                         &rand_generator_, CURAND_RNG_PSEUDO_DEFAULT) ==
-                         CURAND_STATUS_SUCCESS,
+                         &rand_generator_, CURAND_RNG_PSEUDO_DEFAULT),
                      "curandCreateGenerator failed");
       PADDLE_ENFORCE(
           paddle::platform::dynload::curandSetPseudoRandomGeneratorSeed(
-              rand_generator_, random_seed_) == CURAND_STATUS_SUCCESS,
+              rand_generator_, random_seed_),
           "curandSetPseudoRandomGeneratorSeed failed");
-      PADDLE_ENFORCE(paddle::platform::dynload::curandSetStream(
-                         rand_generator_, stream_) == CURAND_STATUS_SUCCESS,
-                     "curandSetStream failed");
+      PADDLE_ENFORCE(
+          paddle::platform::dynload::curandSetStream(rand_generator_, stream_),
+          "curandSetStream failed");
     }
     return rand_generator_;
   }
@@ -138,26 +135,23 @@ class CUDADeviceContext : public DeviceContext {
   ~CUDADeviceContext() {
     Wait();
     if (blas_handle_) {
-      PADDLE_ENFORCE(paddle::platform::dynload::cublasDestroy(blas_handle_) ==
-                         CUBLAS_STATUS_SUCCESS,
+      PADDLE_ENFORCE(paddle::platform::dynload::cublasDestroy(blas_handle_),
                      "cublasDestroy failed");
     }
 
     if (dnn_handle_) {
-      PADDLE_ENFORCE(paddle::platform::dynload::cudnnDestroy(dnn_handle_) ==
-                         CUDNN_STATUS_SUCCESS,
+      PADDLE_ENFORCE(paddle::platform::dynload::cudnnDestroy(dnn_handle_),
                      "cudnnDestroy failed");
     }
 
     if (rand_generator_) {
-      PADDLE_ENFORCE(paddle::platform::dynload::curandDestroyGenerator(
-                         rand_generator_) == CURAND_STATUS_SUCCESS,
-                     "curandDestroyGenerator failed");
+      PADDLE_ENFORCE(
+          paddle::platform::dynload::curandDestroyGenerator(rand_generator_),
+          "curandDestroyGenerator failed");
     }
     eigen_stream_.reset();
     eigen_device_.reset();
-    paddle::platform::throw_on_error(cudaStreamDestroy(stream_),
-                                     "cudaStreamDestroy failed");
+    PADDLE_ENFORCE(cudaStreamDestroy(stream_), "cudaStreamDestroy failed");
   }
 
  private:

paddle/platform/dynload/dynamic_loader.cc

@@ -19,7 +19,7 @@ limitations under the License. */
 #include <string>
 #include "gflags/gflags.h"
 #include "glog/logging.h"
-#include "paddle/framework/enforce.h"
+#include "paddle/platform/enforce.h"
 
 DEFINE_string(cudnn_dir, "",
               "Specify path for loading libcudnn.so. For instance, "

paddle/platform/enforce.h

+/* Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserve.
+
+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 <paddle/string/printf.h>
+#include <sstream>
+#include <stdexcept>
+#include <string>
+
+#ifndef PADDLE_ONLY_CPU
+
+#include "paddle/platform/dynload/cublas.h"
+#include "paddle/platform/dynload/cudnn.h"
+#include "paddle/platform/dynload/curand.h"
+
+#include <cublas_v2.h>
+#include <cudnn.h>
+#include <curand.h>
+#include <thrust/system/cuda/error.h>
+#include <thrust/system_error.h>
+
+#endif  // PADDLE_ONLY_CPU
+
+namespace paddle {
+namespace platform {
+
+// Because most enforce conditions would evaluate to true, we can use
+// __builtin_expect to instruct the C++ compiler to generate code that
+// always forces branch prediction of true.
+// This generates faster binary code. __builtin_expect is since C++11.
+// For more details, please check https://stackoverflow.com/a/43870188/724872.
+#define UNLIKELY(condition) __builtin_expect(static_cast<bool>(condition), 0)
+
+#ifndef PADDLE_ONLY_CPU
+
+template <typename... Args>
+inline void throw_on_error(cudaError_t e, const Args&... args) {
+  if (UNLIKELY(e)) {
+    // clang-format off
+    throw thrust::system_error(
+        e, thrust::cuda_category(),
+        string::Sprintf(args...) +
+        string::Sprintf(" at [%s:%s];", __FILE__, __LINE__));
+    // clang-format on
+  }
+}
+
+template <typename... Args>
+inline void throw_on_error(curandStatus_t stat, const Args&... args) {
+  if (stat != CURAND_STATUS_SUCCESS) {
+    // clang-format off
+    throw thrust::system_error(
+        cudaErrorLaunchFailure, thrust::cuda_category(),
+        string::Sprintf(args...) +
+        string::Sprintf(" at [%s:%s];", __FILE__, __LINE__));
+    // clang-format on
+  }
+}
+
+template <typename... Args>
+inline void throw_on_error(cudnnStatus_t stat, const Args&... args) {
+  if (stat == CUDNN_STATUS_SUCCESS) {
+    return;
+  } else {
+    // clang-format off
+    throw std::runtime_error(
+        platform::dynload::cudnnGetErrorString(stat) +
+        string::Sprintf(args...) +
+        string::Sprintf(" at [%s:%s];", __FILE__, __LINE__));
+    // clang-format on
+  }
+}
+
+template <typename... Args>
+inline void throw_on_error(cublasStatus_t stat, const Args&... args) {
+  std::string err;
+  if (stat == CUBLAS_STATUS_SUCCESS) {
+    return;
+  } else if (stat == CUBLAS_STATUS_NOT_INITIALIZED) {
+    err = "CUBLAS: not initialized, ";
+  } else if (stat == CUBLAS_STATUS_ALLOC_FAILED) {
+    err = "CUBLAS: alloc failed, ";
+  } else if (stat == CUBLAS_STATUS_INVALID_VALUE) {
+    err = "CUBLAS: invalid value, ";
+  } else if (stat == CUBLAS_STATUS_ARCH_MISMATCH) {
+    err = "CUBLAS: arch mismatch, ";
+  } else if (stat == CUBLAS_STATUS_MAPPING_ERROR) {
+    err = "CUBLAS: mapping error, ";
+  } else if (stat == CUBLAS_STATUS_EXECUTION_FAILED) {
+    err = "CUBLAS: execution failed, ";
+  } else if (stat == CUBLAS_STATUS_INTERNAL_ERROR) {
+    err = "CUBLAS: internal error, ";
+  } else if (stat == CUBLAS_STATUS_NOT_SUPPORTED) {
+    err = "CUBLAS: not supported, ";
+  } else if (stat == CUBLAS_STATUS_LICENSE_ERROR) {
+    err = "CUBLAS: license error, ";
+  }
+  throw std::runtime_error(err + string::Sprintf(args...) +
+                           string::Sprintf(" at [%s:%s];", __FILE__, __LINE__));
+}
+
+#endif  // PADDLE_ONLY_CPU
+
+template <typename... Args>
+inline void throw_on_error(int stat, const Args&... args) {
+  if (UNLIKELY(!(stat))) {
+    throw std::runtime_error(
+        string::Sprintf(args...) +
+        string::Sprintf(" at [%s:%s];", __FILE__, __LINE__));
+  }
+}
+
+#define PADDLE_THROW(...)                                     \
+  do {                                                        \
+    throw std::runtime_error(                                 \
+        string::Sprintf(__VA_ARGS__) +                        \
+        string::Sprintf(" at [%s:%s];", __FILE__, __LINE__)); \
+  } while (0)
+
+/**
+ * @brief Enforce a condition, otherwise throw an EnforceNotMet
+ */
+#define PADDLE_ENFORCE(condition, ...)                          \
+  do {                                                          \
+    ::paddle::platform::throw_on_error(condition, __VA_ARGS__); \
+  } while (0)
+
+}  // namespace platform
+}  // namespace paddle

paddle/framework/enforce_test.cc → paddle/platform/enforce_test.cc

@@ -9,8 +9,8 @@ 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/framework/enforce.h>
+#include "paddle/platform/enforce.h"
+#include "gtest/gtest.h"
 
 TEST(ENFORCE, OK) {
   PADDLE_ENFORCE(true, "Enforce is ok %d now %f", 123, 0.345);
@@ -23,13 +23,14 @@ TEST(ENFORCE, FAILED) {
   bool in_catch = false;
   try {
     PADDLE_ENFORCE(false, "Enforce is not ok %d at all", 123);
-  } catch (paddle::framework::EnforceNotMet err) {
+  } catch (const std::runtime_error& error) {
+    // your error handling code here
     in_catch = true;
     std::string msg = "Enforce is not ok 123 at all";
-    const char* what = err.what();
+    const char* what = error.what();
     for (size_t i = 0; i < msg.length(); ++i) {
       ASSERT_EQ(what[i], msg[i]);
     }
   }
   ASSERT_TRUE(in_catch);
-}
\ No newline at end of file
+}

paddle/platform/error.h

-#pragma once
-
-#include <sstream>
-#include <stdexcept>
-#include <string>
-
-#ifndef PADDLE_ONLY_CPU
-
-#include <cublas_v2.h>
-#include <cudnn.h>
-#include <curand.h>
-#include <thrust/system/cuda/error.h>
-#include <thrust/system_error.h>
-
-#endif  // PADDLE_ONLY_CPU
-
-namespace paddle {
-namespace platform {
-
-#ifndef PADDLE_ONLY_CPU
-
-inline void throw_on_error(cudaError_t e, const char* message) {
-  if (e) {
-    throw thrust::system_error(e, thrust::cuda_category(), message);
-  }
-}
-
-inline void throw_on_error(curandStatus_t stat, const char* message) {
-  if (stat != CURAND_STATUS_SUCCESS) {
-    throw thrust::system_error(cudaErrorLaunchFailure, thrust::cuda_category(),
-                               message);
-  }
-}
-
-inline void throw_on_error(cudnnStatus_t stat, const char* message) {
-  std::stringstream ss;
-  if (stat == CUDNN_STATUS_SUCCESS) {
-    return;
-  } else {
-    ss << cudnnGetErrorString(stat);
-    ss << ", " << message;
-    throw std::runtime_error(ss.str());
-  }
-}
-
-inline void throw_on_error(cublasStatus_t stat, const char* message) {
-  std::stringstream ss;
-  if (stat == CUBLAS_STATUS_SUCCESS) {
-    return;
-  } else if (stat == CUBLAS_STATUS_NOT_INITIALIZED) {
-    ss << "CUBLAS: not initialized";
-  } else if (stat == CUBLAS_STATUS_ALLOC_FAILED) {
-    ss << "CUBLAS: alloc failed";
-  } else if (stat == CUBLAS_STATUS_INVALID_VALUE) {
-    ss << "CUBLAS: invalid value";
-  } else if (stat == CUBLAS_STATUS_ARCH_MISMATCH) {
-    ss << "CUBLAS: arch mismatch";
-  } else if (stat == CUBLAS_STATUS_MAPPING_ERROR) {
-    ss << "CUBLAS: mapping error";
-  } else if (stat == CUBLAS_STATUS_EXECUTION_FAILED) {
-    ss << "CUBLAS: execution failed";
-  } else if (stat == CUBLAS_STATUS_INTERNAL_ERROR) {
-    ss << "CUBLAS: internal error";
-  } else if (stat == CUBLAS_STATUS_NOT_SUPPORTED) {
-    ss << "CUBLAS: not supported";
-  } else if (stat == CUBLAS_STATUS_LICENSE_ERROR) {
-    ss << "CUBLAS: license error";
-  }
-  ss << ", " << message;
-  throw std::runtime_error(ss.str());
-}
-
-inline void throw_on_error(cublasStatus_t stat) {
-  const char* message = "";
-  throw_on_error(stat, message);
-}
-
-#endif  // PADDLE_ONLY_CPU
-
-inline void throw_on_error(int stat, const char* message) {
-  if (stat) {
-    throw std::runtime_error(message + (", stat = " + std::to_string(stat)));
-  }
-}
-
-}  // namespace platform
-}  // namespace paddle

paddle/platform/gpu_info.cc

@@ -14,7 +14,7 @@ limitations under the License. */
 
 #include "paddle/platform/gpu_info.h"
 #include "gflags/gflags.h"
-#include "paddle/platform/error.h"
+#include "paddle/platform/enforce.h"
 
 DEFINE_double(fraction_of_gpu_memory_to_use, 0.95,
               "Default use 95% of GPU memory for PaddlePaddle,"
@@ -25,7 +25,7 @@ namespace platform {
 
 int GetDeviceCount() {
   int count;
-  throw_on_error(
+  PADDLE_ENFORCE(
       cudaGetDeviceCount(&count),
       "cudaGetDeviceCount failed in paddle::platform::GetDeviceCount");
   return count;
@@ -33,19 +33,19 @@ int GetDeviceCount() {
 
 int GetCurrentDeviceId() {
   int device_id;
-  throw_on_error(
+  PADDLE_ENFORCE(
       cudaGetDevice(&device_id),
       "cudaGetDevice failed in paddle::platform::GetCurrentDeviceId");
   return device_id;
 }
 
 void SetDeviceId(int id) {
-  throw_on_error(cudaSetDevice(id),
+  PADDLE_ENFORCE(cudaSetDevice(id),
                  "cudaSetDevice failed in paddle::platform::SetDeviceId");
 }
 
 void GpuMemoryUsage(size_t& available, size_t& total) {
-  throw_on_error(cudaMemGetInfo(&available, &total),
+  PADDLE_ENFORCE(cudaMemGetInfo(&available, &total),
                  "cudaMemGetInfo failed in paddle::platform::GetMemoryUsage");
 }
 

paddle/pybind/CMakeLists.txt

 cc_library(paddle_pybind SHARED SRCS pybind.cc DEPS pybind python
-        add_op fc_op)
+        add_op fc_op sgd_op)

paddle/pybind/pybind.cc

@@ -28,6 +28,7 @@ namespace pd = paddle::framework;
 
 USE_OP(add_two);
 USE_OP_WITHOUT_KERNEL(fc);
+USE_OP(sgd);
 
 PYBIND11_PLUGIN(core) {
   py::module m("core", "C++ core of Paddle Paddle");

python/paddle/v2/framework/tests/CMakeLists.txt

 add_python_test(test_framework test_protobuf.py test_scope.py
     test_default_scope_funcs.py test_op_creation_methods.py
-    test_tensor.py test_fc_op.py test_add_two_op.py)
+    test_tensor.py test_fc_op.py test_add_two_op.py test_sgd_op.py)

python/paddle/v2/framework/tests/test_sgd_op.py

+import unittest
+import numpy
+from op_test_util import OpTestMeta
+
+
+class TestSGD(unittest.TestCase):
+    __metaclass__ = OpTestMeta
+
+    def setUp(self):
+        self.type = "sgd"
+        self.param = numpy.random.random((342, 345)).astype("float32")
+        self.grad = numpy.random.random((342, 345)).astype("float32")
+        self.learning_rate = 0.1
+        self.param_out = self.param - self.learning_rate * self.grad
+
+
+if __name__ == "__main__":
+    unittest.main()