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94 lines
3.3 KiB
94 lines
3.3 KiB
/* Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserved.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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 <stdint.h>
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#include <ostream>
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#include <string>
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#include "paddle/fluid/framework/lod_tensor.h"
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#include "paddle/fluid/framework/op_registry.h"
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#include "paddle/fluid/framework/operator.h"
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#include "paddle/fluid/framework/var_type.h"
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#include "paddle/fluid/operators/reader/lod_tensor_blocking_queue.h"
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namespace paddle {
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namespace operators {
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class QueueGeneratorOp : public framework::OperatorBase {
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public:
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QueueGeneratorOp(const std::string& type,
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const framework::VariableNameMap& inputs,
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const framework::VariableNameMap& outputs,
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const framework::AttributeMap& attrs)
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: OperatorBase(type, inputs, outputs, attrs) {}
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void RunImpl(const framework::Scope& scope,
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const platform::Place& dev_place) const override {
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std::vector<std::string> names = Attr<std::vector<std::string>>("names");
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PADDLE_ENFORCE_GT(names.size(), 0, platform::errors::InvalidArgument(
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"The attribute 'names' for "
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"Op(queue_generator) must be set."));
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int capacity = Attr<int>("capacity");
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PADDLE_ENFORCE_GT(capacity, 0,
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platform::errors::InvalidArgument(
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"The attribute 'capacity' for Op(queue_generator) "
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"must be set a positive value, "
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"but the one received is %d.",
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capacity));
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// generate queue vars and initialize them
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for (const auto& name : names) {
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GenerateQueue(&scope, name, capacity);
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}
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}
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private:
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void GenerateQueue(const framework::Scope* scope, const std::string& name,
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size_t capacity) const {
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auto var = scope->FindVar(name);
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PADDLE_ENFORCE_NOT_NULL(
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var, platform::errors::NotFound(
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"Can't find var named '%s' in the global scope.", name));
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auto ptr = var->GetMutable<reader::LoDTensorBlockingQueueHolder>();
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ptr->InitOnce(capacity);
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VLOG(3) << "generated a LodTensorBlockingQueue var named: " << name;
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}
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};
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class QueueGeneratorOpMaker : public framework::OpProtoAndCheckerMaker {
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public:
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void Make() override {
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AddComment(R"DOC(
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QueueGenerator operator
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Generate and initialize one or more LodTensorBlockingQueueHolders.
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)DOC");
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AddAttr<std::vector<std::string>>(
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"names",
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"['name1', 'name2', ...] "
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"list of names for LodTensorBlockingQueueHolders")
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.SetDefault({});
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AddAttr<int>("capacity", "queue capacity").SetDefault(1);
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}
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};
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} // namespace operators
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} // namespace paddle
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namespace ops = paddle::operators;
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REGISTER_OP_WITHOUT_GRADIENT(queue_generator, ops::QueueGeneratorOp,
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ops::QueueGeneratorOpMaker);
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