/* Copyright 2017 The TensorFlow Authors. All Rights Reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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vcyou 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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==============================================================================*/
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#ifndef TENSORFLOW_CORE_KERNELS_I_REMOTE_FUSED_GRAPH_EXECUTOR_H_
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#define TENSORFLOW_CORE_KERNELS_I_REMOTE_FUSED_GRAPH_EXECUTOR_H_
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#include "tensorflow/core/framework/tensor.h"
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#include "tensorflow/core/framework/types.h"
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#include "tensorflow/core/platform/macros.h"
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namespace tensorflow {
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class GraphDef;
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class RemoteFusedGraphExecuteInfo;
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class IRemoteFusedGraphExecutor {
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public:
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using TensorAllocatorFunc = std::function<Tensor*(const TensorShape& shape)>;
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IRemoteFusedGraphExecutor() = default;
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virtual ~IRemoteFusedGraphExecutor() = default;
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// Return version of executor.
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// This function is mainly for a debug purpose to verify version of
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// executor info.
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virtual int GetVersion() = 0;
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// Initialize executor. This function is called before
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// starting graph transfer.
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virtual bool Init(const RemoteFusedGraphExecuteInfo& info) = 0;
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// Finalize executor. This function is called when all graph executions
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// are finished.
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virtual bool Finalize() = 0;
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// Setup graph
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virtual bool SetupGraph() = 0;
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// Execute graph
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virtual bool ExecuteGraph() = 0;
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// Teardown Graph
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virtual bool TeardownGraph() = 0;
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// Fill input node's output with Tensor
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virtual bool FillInputNode(const string& node_name, const Tensor& tensor) = 0;
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// Read output node's outputs as ByteArrays
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virtual bool ReadOutputNode(const string& node_name,
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TensorAllocatorFunc tensor_allocator) = 0;
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virtual Status FuseRemoteGraph(const GraphDef& original_graph_def,
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const std::vector<string>& inputs,
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const std::vector<string>& outputs,
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GraphDef* fused_graph_def) = 0;
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virtual bool IsEnabled() const = 0;
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private:
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TF_DISALLOW_COPY_AND_ASSIGN(IRemoteFusedGraphExecutor);
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};
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} // namespace tensorflow
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#endif // TENSORFLOW_CORE_KERNELS_I_REMOTE_FUSED_GRAPH_EXECUTOR_H_
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