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126 lines
5.0 KiB
126 lines
5.0 KiB
// Copyright (c) 2018 PaddlePaddle Authors. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "reader_op_registry.h"
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namespace paddle {
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namespace operators {
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namespace reader {
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std::vector<framework::DDim> RestoreShapes(const std::vector<int>& shape_concat,
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const std::vector<int>& ranks) {
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std::vector<framework::DDim> res;
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int offset = 0;
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for (int len : ranks) {
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auto start_it = shape_concat.begin() + offset;
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auto end_it = start_it + len;
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res.push_back(framework::make_ddim(std::vector<int>(start_it, end_it)));
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offset += len;
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}
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return res;
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}
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std::unordered_map<std::string, FileReaderCreator>& FileReaderRegistry() {
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static std::unordered_map<std::string, FileReaderCreator> regs;
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return regs;
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}
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FileReaderMakerBase::FileReaderMakerBase(
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framework::OpProtoAndCheckerMaker::OpProto* op_proto,
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framework::OpAttrChecker* op_checker)
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: OpProtoAndCheckerMaker(op_proto, op_checker) {
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AddOutput("Out", "(ReaderHolder) The created random reader.").AsDuplicable();
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AddAttr<std::vector<int>>("shape_concat", "The concat of all data's shapes.");
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AddAttr<std::vector<int>>(
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"ranks",
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"The ranks of each data."
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"e.g."
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"shape_concat = [2,3,4,5,6]"
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"ranks = [3,2]"
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"It means the reader will generate two data each time,"
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"whose shapes are [2,3,4] and [5,6] respectively.");
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AddAttr<std::vector<int>>("lod_levels", "The LoD levels of each data.");
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}
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void FileReaderInferShape::operator()(framework::InferShapeContext* ctx) const {
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PADDLE_ENFORCE(
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!ctx->IsRuntime(),
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"'FileReaderInferShape' should only be invoked during compile time.");
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PADDLE_ENFORCE(ctx->HasOutput("Out"),
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"The output file reader should not be null.");
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const auto shape_concat = ctx->Attrs().Get<std::vector<int>>("shape_concat");
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const auto ranks = ctx->Attrs().Get<std::vector<int>>("ranks");
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std::vector<framework::DDim> shapes = RestoreShapes(shape_concat, ranks);
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ctx->SetReaderDims("Out", shapes);
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const auto lod_levels = ctx->Attrs().Get<std::vector<int>>("lod_levels");
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PADDLE_ENFORCE_EQ(lod_levels.size(), shapes.size(),
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"The number of 'lod_levels'(%d) doesn't match the number "
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"of 'shapes'(%d).",
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lod_levels.size(), shapes.size());
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framework::VarDesc* reader =
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boost::get<framework::VarDesc*>(ctx->GetOutputVarPtrs("Out")[0]);
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reader->SetLoDLevels(lod_levels);
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}
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void FileReaderInferVarType::operator()(const framework::OpDesc& op_desc,
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framework::BlockDesc* block) const {
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std::string reader_name = op_desc.Output("Out")[0];
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framework::VarDesc* reader = block->FindVarRecursive(reader_name);
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reader->SetType(framework::proto::VarType::READER);
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}
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void DecoratedReaderInferShape::operator()(
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framework::InferShapeContext* ctx) const {
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PADDLE_ENFORCE(!ctx->IsRuntime(),
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"'DecoratedReaderInferShape' should only be invoked during "
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"compile time.");
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PADDLE_ENFORCE(ctx->HasInput("UnderlyingReader"),
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"Input(UnderlyingReader) should not be null.");
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PADDLE_ENFORCE(ctx->HasOutput("Out"),
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"The output decorated reader should not be null.");
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ctx->SetReaderDims("Out", ctx->GetReaderDims("UnderlyingReader"));
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framework::VarDesc* in_reader = boost::get<framework::VarDesc*>(
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ctx->GetInputVarPtrs("UnderlyingReader")[0]);
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framework::VarDesc* out_reader =
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boost::get<framework::VarDesc*>(ctx->GetOutputVarPtrs("Out")[0]);
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out_reader->SetLoDLevels(in_reader->GetLoDLevels());
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}
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void DecoratedReaderInferVarType::operator()(
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const framework::OpDesc& op_desc, framework::BlockDesc* block) const {
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std::string in_reader_name = op_desc.Input("UnderlyingReader")[0];
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framework::VarDesc* in_reader = block->FindVarRecursive(in_reader_name);
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std::string out_reader_name = op_desc.Output("Out")[0];
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framework::VarDesc* out_reader = block->FindVarRecursive(out_reader_name);
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out_reader->SetType(framework::proto::VarType::READER);
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out_reader->SetDataTypes(in_reader->GetDataTypes());
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}
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DecoratedReaderMakerBase::DecoratedReaderMakerBase(
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framework::OpProtoAndCheckerMaker::OpProto* op_proto,
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framework::OpAttrChecker* op_checker)
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: OpProtoAndCheckerMaker(op_proto, op_checker) {
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AddInput("UnderlyingReader",
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"(ReaderHolder) The underlying reader for creating a batch reader.");
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AddOutput("Out", "(ReaderHolder) The created batch reader.");
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}
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} // namespace reader
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} // namespace operators
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} // namespace paddle
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