op_registry.h 9.7 KB
Newer Older
F
fengjiayi 已提交
1 2 3 4 5 6 7 8 9 10 11 12 13 14
/* 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. */

15 16
#pragma once

17
#include <algorithm>
18
#include <atomic>
Y
Yu Yang 已提交
19
#include <type_traits>
F
WIP  
fengjiayi 已提交
20
#include <typeinfo>
21 22
#include <unordered_map>
#include <unordered_set>
Y
Yu Yang 已提交
23 24

#include "glog/logging.h"  // For VLOG()
Y
Yi Wang 已提交
25
#include "paddle/framework/attribute.h"
26
#include "paddle/framework/details/op_registry.h"
Y
Yu Yang 已提交
27
#include "paddle/framework/framework.pb.h"
Y
Yu Yang 已提交
28
#include "paddle/framework/grad_op_desc_maker.h"
Y
Yu Yang 已提交
29
#include "paddle/framework/op_desc.h"
30
#include "paddle/framework/operator.h"
D
dongzhihong 已提交
31
#include "paddle/framework/scope.h"
32 33 34

namespace paddle {
namespace framework {
Y
Yu Yang 已提交
35 36 37 38 39 40 41 42 43 44 45 46
class Registrar {
 public:
  // In our design, various kinds of classes, e.g., operators and kernels,
  // have their corresponding registry and registrar. The action of
  // registration is in the constructor of a global registrar variable, which,
  // however, are not used in the code that calls package framework, and would
  // be removed from the generated binary file by the linker. To avoid such
  // removal, we add Touch to all registrar classes and make USE_OP macros to
  // call this method. So, as long as the callee code calls USE_OP, the global
  // registrar variable won't be removed by the linker.
  void Touch() {}
};
47

48
template <typename... ARGS>
Y
Yu Yang 已提交
49
struct OperatorRegistrar : public Registrar {
50
  explicit OperatorRegistrar(const char* op_type) {
51 52 53 54
    PADDLE_ENFORCE(!OpInfoMap::Instance().Has(op_type),
                   "'%s' is registered more than once.", op_type);
    static_assert(sizeof...(ARGS) != 0,
                  "OperatorRegistrar should be invoked at least by OpClass");
55
    OpInfo info;
56
    details::OperatorRegistrarRecursive<0, false, ARGS...>(op_type, &info);
Y
Yu Yang 已提交
57
    OpInfoMap::Instance().Insert(op_type, info);
58 59 60
  }
};

61 62
class OpRegistry {
 public:
63
  template <typename OpType, typename ProtoMakerType, typename GradOpType>
64 65
  static void RegisterOp(const std::string& op_type,
                         const std::string& grad_op_type) {
66 67
    OperatorRegistrar<OpType, ProtoMakerType> reg(op_type.c_str());
    reg.info.grad_op_type_ = grad_op_type;
68 69
    // register gradient op
    if (!grad_op_type.empty()) {
70
      OperatorRegistrar<GradOpType> grad_reg(grad_op_type.c_str());
71
    }
F
fengjiayi 已提交
72 73
  }

Y
Yu Yang 已提交
74
  static std::unique_ptr<OperatorBase> CreateOp(const std::string& type,
Y
Yu Yang 已提交
75 76
                                                const VariableNameMap& inputs,
                                                const VariableNameMap& outputs,
77
                                                AttributeMap attrs);
Y
Yu Yang 已提交
78

79 80
  static std::unique_ptr<OperatorBase> CreateOp(const OpDesc& op_desc,
                                                ProgramDesc* program);
Y
Yu Yang 已提交
81

Y
Yu Yang 已提交
82
  static std::unique_ptr<OperatorBase> CreateOp(const OpDescBind& op_desc);
F
Fix bug  
fengjiayi 已提交
83
};
F
fengjiayi 已提交
84

85 86 87
template <typename PlaceType, bool at_end, size_t I, typename... KernelType>
struct OpKernelRegistrarFunctor;

88 89 90 91
template <typename PlaceType, size_t I, typename... KernelTypes>
struct OpKernelRegistrarFunctor<PlaceType, false, I, KernelTypes...> {
  using KERNEL_TYPE =
      typename std::tuple_element<I, std::tuple<KernelTypes...>>::type;
92 93

  void operator()(const char* op_type) const {
94
    using T = typename KERNEL_TYPE::ELEMENT_TYPE;
95 96
    OperatorWithKernel::OpKernelKey key(ToDataType(std::type_index(typeid(T))),
                                        PlaceType());
97
    OperatorWithKernel::AllOpKernels()[op_type][key].reset(new KERNEL_TYPE);
98

99 100
    constexpr auto size = std::tuple_size<std::tuple<KernelTypes...>>::value;
    OpKernelRegistrarFunctor<PlaceType, I + 1 == size, I + 1, KernelTypes...>
101 102 103 104 105 106 107 108 109 110 111 112
        func;
    func(op_type);
  }
};

template <typename PlaceType, size_t I, typename... KernelType>
struct OpKernelRegistrarFunctor<PlaceType, true, I, KernelType...> {
  void operator()(const char* op_type) const {}
};

// User can register many kernel in one place. The data type could be different.
template <typename PlaceType, typename... KernelType>
F
fengjiayi 已提交
113 114 115
class OpKernelRegistrar : public Registrar {
 public:
  explicit OpKernelRegistrar(const char* op_type) {
116 117
    OpKernelRegistrarFunctor<PlaceType, false, 0, KernelType...> func;
    func(op_type);
F
fengjiayi 已提交
118 119 120
  }
};

121 122 123
/**
 * check if MACRO is used in GLOBAL NAMESPACE.
 */
Y
Yu Yang 已提交
124 125 126 127 128 129
#define STATIC_ASSERT_GLOBAL_NAMESPACE(uniq_name, msg)                        \
  struct __test_global_namespace_##uniq_name##__ {};                          \
  static_assert(std::is_same<::__test_global_namespace_##uniq_name##__,       \
                             __test_global_namespace_##uniq_name##__>::value, \
                msg)

Y
Yu Yang 已提交
130 131 132 133 134 135 136 137 138 139 140 141 142 143 144
#define REGISTER_OPERATOR(op_type, op_class, ...)                      \
  STATIC_ASSERT_GLOBAL_NAMESPACE(                                      \
      __reg_op__##op_type,                                             \
      "REGISTER_OPERATOR must be called in global namespace");         \
  class _OpClass_##op_type##_ : public op_class {                      \
   public:                                                             \
    DEFINE_OP_CLONE_METHOD(_OpClass_##op_type##_);                     \
    DEFINE_OP_CONSTRUCTOR(_OpClass_##op_type##_, op_class);            \
  };                                                                   \
  static ::paddle::framework::OperatorRegistrar<_OpClass_##op_type##_, \
                                                ##__VA_ARGS__>         \
      __op_registrar_##op_type##__(#op_type);                          \
  int TouchOpRegistrar_##op_type() {                                   \
    __op_registrar_##op_type##__.Touch();                              \
    return 0;                                                          \
Y
Yu Yang 已提交
145 146
  }

147
/**
148
 * Macro to register Operator.
149
 */
150 151 152 153 154 155 156 157 158 159 160 161
#define REGISTER_OP(op_type, op_class, op_maker_class, grad_op_type,       \
                    grad_op_class)                                         \
  REGISTER_OPERATOR(grad_op_type, grad_op_class);                          \
  class _GradOpDescMaker_##grad_op_type##_                                 \
      : public ::paddle::framework::DefaultGradOpDescMaker<true> {         \
    using ::paddle::framework::DefaultGradOpDescMaker<                     \
        true>::DefaultGradOpDescMaker;                                     \
                                                                           \
   protected:                                                              \
    virtual std::string GradOpType() const { return #grad_op_type; }       \
  };                                                                       \
  REGISTER_OPERATOR(op_type, op_class, _GradOpDescMaker_##grad_op_type##_, \
Y
Yu Yang 已提交
162
                    op_maker_class);
Y
Yu Yang 已提交
163

F
WIP  
fengjiayi 已提交
164
#define REGISTER_OP_WITHOUT_GRADIENT(op_type, op_class, op_maker_class) \
Y
Yu Yang 已提交
165
  REGISTER_OPERATOR(op_type, op_class, op_maker_class)
D
dongzhihong 已提交
166

D
dongzhihong 已提交
167
/**
168
 * Macro to register OperatorKernel.
D
dongzhihong 已提交
169
 */
F
Fix bug  
fengjiayi 已提交
170 171 172 173 174 175 176 177 178
#define REGISTER_OP_KERNEL(op_type, DEVICE_TYPE, place_class, ...)        \
  STATIC_ASSERT_GLOBAL_NAMESPACE(                                         \
      __reg_op_kernel_##op_type##_##DEVICE_TYPE##__,                      \
      "REGISTER_OP_KERNEL must be called in global namespace");           \
  static ::paddle::framework::OpKernelRegistrar<place_class, __VA_ARGS__> \
      __op_kernel_registrar_##op_type##_##DEVICE_TYPE##__(#op_type);      \
  int TouchOpKernelRegistrar_##op_type##_##DEVICE_TYPE() {                \
    __op_kernel_registrar_##op_type##_##DEVICE_TYPE##__.Touch();          \
    return 0;                                                             \
F
fengjiayi 已提交
179
  }
D
dongzhihong 已提交
180

F
fengjiayi 已提交
181 182
#define REGISTER_OP_GPU_KERNEL(op_type, ...) \
  REGISTER_OP_KERNEL(op_type, GPU, ::paddle::platform::GPUPlace, __VA_ARGS__)
F
fengjiayi 已提交
183

F
fengjiayi 已提交
184 185
#define REGISTER_OP_CPU_KERNEL(op_type, ...) \
  REGISTER_OP_KERNEL(op_type, CPU, ::paddle::platform::CPUPlace, __VA_ARGS__)
Y
Yu Yang 已提交
186

187
/**
188 189
 * Macro to mark what Operator and Kernel
 * we will use and tell the compiler to
190 191
 * link them into target.
 */
F
fengjiayi 已提交
192 193 194 195 196 197
#define USE_OP_ITSELF(op_type)                                    \
  STATIC_ASSERT_GLOBAL_NAMESPACE(                                 \
      __use_op_itself_##op_type,                                  \
      "USE_OP_ITSELF must be called in global namespace");        \
  extern int TouchOpRegistrar_##op_type();                        \
  static int use_op_itself_##op_type##_ __attribute__((unused)) = \
F
Fix bug  
fengjiayi 已提交
198
      TouchOpRegistrar_##op_type()
F
fengjiayi 已提交
199

200
#define USE_OP_DEVICE_KERNEL(op_type, DEVICE_TYPE)               \
F
fengjiayi 已提交
201 202
  STATIC_ASSERT_GLOBAL_NAMESPACE(                                \
      __use_op_kernel_##op_type##_##DEVICE_TYPE##__,             \
203
      "USE_OP_DEVICE_KERNEL must be in global namespace");       \
F
fengjiayi 已提交
204 205 206
  extern int TouchOpKernelRegistrar_##op_type##_##DEVICE_TYPE(); \
  static int use_op_kernel_##op_type##_##DEVICE_TYPE##_          \
      __attribute__((unused)) =                                  \
F
Fix bug  
fengjiayi 已提交
207
          TouchOpKernelRegistrar_##op_type##_##DEVICE_TYPE()
Y
Yu Yang 已提交
208

209 210
// TODO(fengjiayi): The following macros
// seems ugly, do we have better method?
Y
Yu Yang 已提交
211

212
#ifndef PADDLE_WITH_CUDA
213
#define USE_OP_KERNEL(op_type) USE_OP_DEVICE_KERNEL(op_type, CPU)
Y
Yu Yang 已提交
214
#else
215 216 217
#define USE_OP_KERNEL(op_type)        \
  USE_OP_DEVICE_KERNEL(op_type, CPU); \
  USE_OP_DEVICE_KERNEL(op_type, GPU)
Y
Yu Yang 已提交
218
#endif
219

220 221
#define USE_NO_KERNEL_OP(op_type) USE_OP_ITSELF(op_type);

F
WIP  
fengjiayi 已提交
222 223 224
#define USE_CPU_ONLY_OP(op_type) \
  USE_OP_ITSELF(op_type);        \
  USE_OP_DEVICE_KERNEL(op_type, CPU);
225

F
WIP  
fengjiayi 已提交
226 227 228
#define USE_OP(op_type)   \
  USE_OP_ITSELF(op_type); \
  USE_OP_KERNEL(op_type)
229

230 231
}  // namespace framework
}  // namespace paddle