size_op.cc 2.4 KB
Newer Older
Z
zhoukunsheng 已提交
1 2 3 4 5 6 7 8 9 10 11 12 13 14
/* Copyright (c) 2019 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. */

15
#include "paddle/fluid/framework/infershape_utils.h"
Z
zhoukunsheng 已提交
16
#include "paddle/fluid/framework/op_registry.h"
17 18
#include "paddle/phi/core/infermeta_utils.h"
#include "paddle/phi/infermeta/unary.h"
Z
zhoukunsheng 已提交
19 20 21 22 23 24 25

namespace paddle {
namespace operators {

class SizeOp : public framework::OperatorWithKernel {
 public:
  using framework::OperatorWithKernel::OperatorWithKernel;
26 27 28 29 30 31 32 33 34

 protected:
  framework::OpKernelType GetExpectedKernelType(
      const framework::ExecutionContext& ctx) const override {
    auto dtype = framework::proto::VarType::FP32;  // dtype is not important
    return framework::OpKernelType(dtype, ctx.GetPlace());
  }

  framework::OpKernelType GetKernelTypeForVar(
35
      const std::string& var_name,
36
      const phi::DenseTensor& tensor,
37 38 39
      const framework::OpKernelType& expected_kernel_type) const override {
    return expected_kernel_type;
  }
Z
zhoukunsheng 已提交
40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56
};

class SizeOpMaker : public framework::OpProtoAndCheckerMaker {
 public:
  void Make() override {
    AddInput("Input", "The input tensor.");
    AddOutput("Out",
              "The returned tensor, the data type "
              "is int64_t, will be on the same device with the input Tensor.");
    AddComment(R"DOC(
Size Operator.

Return the number of elements in the input.
)DOC");
  }
};

57 58
DECLARE_NO_NEED_BUFFER_VARS_INFERER(SizeOpNoNeedBufferVarInferer, "Input");

Z
zhoukunsheng 已提交
59 60 61 62
}  // namespace operators
}  // namespace paddle

namespace ops = paddle::operators;
63 64
DECLARE_INFER_SHAPE_FUNCTOR(size,
                            SizeInferShapeFunctor,
65
                            PD_INFER_META(phi::NumelInferMeta));
H
hong 已提交
66
REGISTER_OPERATOR(
67 68 69
    size,
    ops::SizeOp,
    ops::SizeOpMaker,
H
hong 已提交
70
    paddle::framework::EmptyGradOpMaker<paddle::framework::OpDesc>,
71
    paddle::framework::EmptyGradOpMaker<paddle::imperative::OpBase>,
72 73
    SizeInferShapeFunctor,
    ops::SizeOpNoNeedBufferVarInferer);