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109 lines
2.8 KiB
109 lines
2.8 KiB
/* Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserve.
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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 "paddle/framework/executor.h"
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#include "paddle/platform/device_context.h"
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namespace paddle {
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namespace framework {
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class LinearListView;
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class GraphView;
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// Immutable view of a ProgramDesc organized for efficient execution.
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class ProgramDescView {
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public:
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virtual ~ProgramDescView() {}
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virtual void Initialize(const ProgramDesc*) = 0;
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static ProgramDescView* Create(bool is_linear);
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};
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class LinearListView : public ProgramDescView {
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public:
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void Initialize(const ProgramDesc*) override;
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};
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class GraphView : public ProgramDescView {
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public:
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void Initialize(const ProgramDesc*) override;
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};
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static ProgramDescView* Create(bool is_linear) {
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if (is_linear) {
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return new LinearListView();
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} else {
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return new GraphView();
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}
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}
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void LinearListView::Initialize(const ProgramDesc*) {
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// get a LinearView of ProgramDesc
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}
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void GraphView::Initialize(const ProgramDesc*) {
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// get a GraphView of ProgramDesc
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}
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class ExecutorImpl : public Executor {
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public:
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ExecutorImpl(const platform::DeviceContext* ctx, const ProgramDesc* pdesc,
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bool is_linear)
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: device_context_(ctx),
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program_desc_(pdesc),
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view_(ProgramDescView::Create(is_linear)) {}
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virtual ~ExecutorImpl() {
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if (view_) delete view_;
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}
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void Run() override;
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void Initialize();
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private:
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const platform::DeviceContext* device_context_;
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const ProgramDesc* program_desc_;
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ProgramDescView* view_;
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};
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static Executor* NewLocalExecutor(const platform::Place& place,
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const ProgramDesc& pdesc, bool is_linear) {
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platform::DeviceContext* device_context = nullptr;
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if (platform::is_cpu_place(place)) {
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device_context =
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new platform::CPUDeviceContext(boost::get<platform::CPUPlace>(place));
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}
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#ifndef PADDLE_ONLY_CPU
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else if {
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device_context =
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new platform::CUDADeviceContext(boost::get<platform::GPUPlace>(place));
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}
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#endif
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return new ExecutorImpl(device_context, &pdesc, is_linear);
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}
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void ExecutorImpl::Run() {
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// operators running
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device_context_->Wait();
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}
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void ExecutorImpl::Initialize() {
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// Initialize the ProgramDescView
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view_->Initialize(program_desc_);
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}
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} // namespace framework
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} // namespace paddle
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