huajsj commented on a change in pull request #9108: URL: https://github.com/apache/tvm/pull/9108#discussion_r719991038
########## File path: src/runtime/pipeline/pipeline_struct.h ########## @@ -0,0 +1,164 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you 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. + */ +#ifndef TVM_RUNTIME_PIPELINE_PIPELINE_STRUCT_H_ +#define TVM_RUNTIME_PIPELINE_PIPELINE_STRUCT_H_ +#include <assert.h> +#include <dlpack/dlpack.h> +#include <dmlc/json.h> + +#include <string> +#include <unordered_map> +#include <vector> +/*! + * \brief All binding information of a output interface. + */ +struct OutputBindings { + /*!\brief Output interface binding information, 'int' is the index of the bond module. + * 'string' is the interface name of the bond module. + */ + std::unordered_map<int, std::string> bindings; + /*! + * \brief If there is one global binding in bindings, then current output is + * global interface. + * \return Whether this output interface is global output interface. + */ + bool IsGlobalOutput() const { + int num_output = 0; + for (auto binding : bindings) { + /* output is global output when value is 0. + */ + num_output += (binding.first == 0); + } + /* If this output is a global output then there is only one such output in map.*/ + assert(num_output <= 1); + return num_output == 1; + } + /*! + * \brief Create module interface map from JSONReader. + * \param reader Json reader. + */ + void Load(dmlc::JSONReader* reader) { + reader->BeginArray(); + while (reader->NextArrayItem()) { + std::string key; + reader->BeginObject(); + std::string input_name; + int mod_idx; + while (reader->NextObjectItem(&key)) { + if (key == "mod_idx") { + reader->Read(&mod_idx); + } + if (key == "input_name") { + reader->Read(&input_name); + } + } + bindings[mod_idx] = input_name; + } + } +}; +/*! + * \brief The binding information of all outputs of a module. + */ +struct OutputMap { + /*! \brief Output binding map, 'int' is output interface index.*/ + std::unordered_map<int, OutputBindings> output_binding_map; + OutputMap& operator=(const OutputMap& output) { + output_binding_map = output.output_binding_map; + return *this; + } + + /*!\brief Check that OutMap is empty. + * \return True or False. + */ + bool Empty() { return output_binding_map.empty(); } + /*! \brief Global output is the final outputs of pipeline, this function use to + * get how many global outputs are in this Outputmap + * \return Number of global outputs. + */ + size_t GetGlobalOutputNum(void) const { + size_t num_output = 0; + for (auto bindings : output_binding_map) { + num_output += bindings.second.IsGlobalOutput() ? 1 : 0; + } + return num_output; + } + + /*! + * \brief Create output binding map from JSONReader. + * \param reader Json reader. + */ + void Load(dmlc::JSONReader* reader) { + reader->BeginArray(); + while (reader->NextArrayItem()) { + std::string key; + reader->BeginObject(); + int output_idx = -1; + OutputBindings binding; + while (reader->NextObjectItem(&key)) { + if (key == "output_idx") { + reader->Read(&output_idx); + } + if (key == "dependent") { + reader->Read(&binding); + } + } + assert(output_idx >= 0); + output_binding_map[output_idx] = binding; + } + } +}; +/*! + * \brief Binding or dependency information of each module output interface. + */ +struct PipelineConfig { + /*!\brief The module index is the key, this variable record all module pipeline configuration + * information. + */ + std::unordered_map<int, OutputMap> config; + OutputMap& operator[](const int key) { return config[key]; } + /*! + * \brief Get the total global outputs number. + * \return The global outputs number. + */ + size_t GetGlobalOutputNum() const { + size_t num_output = 0; + for (auto mod_output : config) { + num_output += mod_output.second.GetGlobalOutputNum(); + } + return num_output; + } +}; +/*! + * \brief The informations used to initialize the graph executor module, the information + * come from the export library function call. + */ +struct ModuleInformation { + /*\brief The first string is the information type such as "lib_name",the second string is + * the information detail such as "/src/lib1.so" for "lib_name". 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