feat(lite): add pack model

GitOrigin-RevId: 1a150f2af346acd3139b848c3d9e61959df254f3

lite/include/lite/pack_model.h

+/**
+ * \file inlude/lite/pack_model.h
+ * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
+ *
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ */
+
+#pragma once
+#include <string>
+
+namespace lite {
+
+struct FeatureBits32 {
+    uint32_t is_fast_run_cache : 1;
+    //! reserved for new fields
+    uint32_t : 31;
+};
+
+struct Header {
+    std::string name;  //! model name
+    std::string
+            model_decryption_method;  //! model encryption method name, this is used to
+                                      //! find the right decryption method. [
+                                      //! AES_default | RC4_default |
+                                      //! SIMPLE_FAST_RC4_default ], default is NONE.
+    std::string info_decryption_method;  //! info data encryption method name, this is
+                                         //! used to find the right decryption method. [
+                                         //! AES_default | RC4_default |
+                                         //! SIMPLE_FAST_RC4_default ], default is NONE.
+    std::string info_parse_method = "LITE_default";  //! info parse method name.
+    std::string info_cache_parse_method =
+            "LITE_parse_cache";  //! fastrun cache parse method name.
+    FeatureBits32 fb32;
+};
+
+class FbsHelper;
+
+class ModelPacker {
+public:
+    ModelPacker(
+            std::string model_path, std::string packed_model_path,
+            std::string info_data_path = "", std::string info_algo_policy_path = "",
+            std::string info_binary_cache_path = "");
+
+    void set_header(
+            std::string model_decryption_method = "NONE",
+            std::string info_decryption_method = "NONE", bool is_fast_run_cache = true);
+
+    void pack_model();
+
+private:
+    std::string m_packed_model_path;
+    std::string m_info_data_path;
+    //! fastrun cache / algo policy
+    std::string m_info_algo_policy_path;
+    //! binary cache
+    std::string m_info_binary_cache_path;
+
+    Header m_header;
+
+    friend class FbsHelper;
+    FbsHelper* m_fbs_helper;
+};
+
+}  // namespace lite
\ No newline at end of file

lite/load_and_run/CMakeLists.txt

 # BUILD the load and run for lite
 include_directories(PUBLIC
                     $<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/lite/load_and_run/src>)
-file(GLOB_RECURSE SOURCES ./*.cpp)
+file(GLOB_RECURSE SOURCES ./*.cpp ${PROJECT_SOURCE_DIR}/lite/src/pack_model/*.cpp)
 
 add_executable(load_and_run ${SOURCES})
 target_link_libraries(load_and_run lite_static)

lite/load_and_run/src/models/model.h

@@ -43,6 +43,8 @@ public:
     virtual void wait() = 0;
 
     virtual ~ModelBase() = default;
+
+    virtual const std::string& get_model_path() const = 0;
 };
 }  // namespace lar
 

lite/load_and_run/src/models/model_lite.h

@@ -60,6 +60,8 @@ public:
     //! get algo strategy
     Strategy& get_lite_strategy() { return m_strategy; }
 
+    const std::string& get_model_path() const override { return model_path; }
+
 private:
     bool share_model_mem;
     bool enable_layout_transform;

lite/load_and_run/src/models/model_mdl.h

@@ -107,6 +107,8 @@ public:
                 std::move(out_file), m_format.val());
     }
 
+    const std::string& get_model_path() const override { return model_path; }
+
 private:
     bool share_model_mem;
     std::string model_path;

lite/load_and_run/src/options/model_options.cpp

+/**
+ * \file lite/load_and_run/src/options/model_options.cpp
+ *
+ * This file is part of MegEngine, a deep learning framework developed by
+ * Megvii.
+ *
+ * \copyright Copyright (c) 2020-2021 Megvii Inc. All rights reserved.
+ */
+
+#include "model_options.h"
+#include "device_options.h"
+#include "lite/pack_model.h"
+#include "misc.h"
+#include "models/model_lite.h"
+#include "models/model_mdl.h"
+
+namespace lar {
+template <typename ModelImpl>
+void PackModelOption::config_model_internel(
+        RuntimeParam& runtime_param, std::shared_ptr<ModelImpl> model) {
+    if (runtime_param.stage == RunStage::AFTER_MODEL_RUNNING) {
+        lite::ModelPacker packer(
+                model->get_model_path(), packed_model_dump, pack_info_json, pack_cache,
+                pack_binary_cache);
+        packer.set_header(pack_info_cryption, pack_model_cryption, is_fast_run_cache);
+        packer.pack_model();
+    }
+}
+}  // namespace lar
+using namespace lar;
+////////////////////// PackModel options ////////////////////////
+
+PackModelOption::PackModelOption() {
+    m_option_name = "pack_model";
+    if (!FLAGS_packed_model_dump.empty())
+        packed_model_dump = FLAGS_packed_model_dump;
+    if (!FLAGS_pack_info_json.empty())
+        pack_info_json = FLAGS_pack_info_json;
+    if (!FLAGS_pack_cache.empty())
+        pack_cache = FLAGS_pack_cache;
+    if (!FLAGS_pack_info_cryption.empty())
+        pack_info_cryption = FLAGS_pack_info_cryption;
+    if (!FLAGS_pack_model_cryption.empty())
+        pack_model_cryption = FLAGS_pack_model_cryption;
+}
+
+bool PackModelOption::is_valid() {
+    return !FLAGS_packed_model_dump.empty();
+}
+
+std::shared_ptr<OptionBase> PackModelOption::create_option() {
+    static std::shared_ptr<PackModelOption> option(new PackModelOption);
+    if (PackModelOption::is_valid()) {
+        return std::static_pointer_cast<OptionBase>(option);
+    } else {
+        return nullptr;
+    }
+}
+
+void PackModelOption::config_model(
+        RuntimeParam& runtime_param, std::shared_ptr<ModelBase> model) {
+    CONFIG_MODEL_FUN;
+}
+
+////////////////////// PackModel gflags ////////////////////////
+
+DEFINE_string(packed_model_dump, "", "The output file path of packed model.");
+DEFINE_string(
+        pack_info_json, "",
+        "An encrypted or not encrypted json format file to pack into the model.");
+DEFINE_string(pack_cache, "", "Pack the fastrun cache or algo policy into the model.");
+DEFINE_string(
+        pack_info_cryption, "NONE",
+        "The info data encryption method name, this is used to find the right "
+        "decryption method. --pack-info-cryption [ AES_default | RC4_default | "
+        "SIMPLE_FAST_RC4_default ], default is NONE. See "
+        "https://megengine.megvii-inc.com/user-guide/deployment/lite/advance/"
+        "pack-lite-model.html for more details.");
+DEFINE_string(
+        pack_model_cryption, "NONE",
+        "The model encryption method name, this is used to find the right decryption "
+        "method. --pack-model-cryption [ AES_default | RC4_default | "
+        "SIMPLE_FAST_RC4_default ], default is NONE. See "
+        "https://megengine.megvii-inc.com/user-guide/deployment/lite/advance/"
+        "pack-lite-model.html for more details.");
+
+REGIST_OPTION_CREATOR(pack_model, lar::PackModelOption::create_option);

lite/load_and_run/src/options/model_options.h

+/**
+ * \file lite/load_and_run/src/options/model_options.h
+ *
+ * This file is part of MegEngine, a deep learning framework developed by
+ * Megvii.
+ *
+ * \copyright Copyright (c) 2020-2021 Megvii Inc. All rights reserved.
+ */
+
+#pragma once
+#include <gflags/gflags.h>
+#include "models/model.h"
+#include "option_base.h"
+
+DECLARE_string(packed_model_dump);
+DECLARE_string(pack_info_json);
+DECLARE_string(pack_cache);
+DECLARE_string(pack_info_cryption);
+DECLARE_string(pack_model_cryption);
+
+namespace lar {
+class PackModelOption : public OptionBase {
+public:
+    static bool is_valid();
+    static std::shared_ptr<OptionBase> create_option();
+    void config_model(
+            RuntimeParam& runtime_param, std::shared_ptr<ModelBase> model) override;
+    std::string option_name() const override { return m_option_name; }
+
+private:
+    PackModelOption();
+
+    template <typename ModelImpl>
+    void config_model_internel(RuntimeParam&, std::shared_ptr<ModelImpl>);
+
+    std::string m_option_name;
+    std::string packed_model_dump;
+    std::string pack_info_json;
+    std::string pack_cache;
+    std::string pack_binary_cache;
+    std::string pack_info_cryption;
+    std::string pack_model_cryption;
+    bool is_fast_run_cache = true;
+};
+}  // namespace lar

lite/pylite/test/test_network.py

@@ -119,6 +119,12 @@ class TestNetwork(TestShuffleNet):
         network.load(model_path)
         self.do_forward(network)
 
+    def test_pack_cache_to_model(self):
+        model_path = os.path.join(self.source_dir, "test_pack_cache_to_model.lite")
+        network = LiteNetwork()
+        network.load(model_path)
+        self.do_forward(network)
+
     def test_network_basic(self):
         network = LiteNetwork()
         network.load(self.model_path)

lite/src/pack_model/pack_model.cpp

+/**
+ * \file src/pack_model/pack_model.cpp
+ * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
+ *
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ */
+
+#include "lite/pack_model.h"
+#include "../misc.h"
+#if LITE_BUILD_WITH_MGE
+#include "megbrain/utils/infile_persistent_cache.h"
+#endif
+
+#include <flatbuffers/flatbuffers.h>
+#include "nlohmann/json.hpp"
+#include "pack_model_generated.h"
+
+namespace lite {
+
+class FbsHelper {
+public:
+    FbsHelper() = default;
+    FbsHelper(ModelPacker* packer, std::string model_path);
+    flatbuffers::Offset<model_parse::ModelHeader> build_header();
+    flatbuffers::Offset<model_parse::ModelInfo> build_info();
+    flatbuffers::Offset<model_parse::ModelData> build_data();
+    flatbuffers::FlatBufferBuilder& builder() { return m_builder; }
+
+private:
+    ModelPacker* m_packer;
+    flatbuffers::FlatBufferBuilder m_builder;
+    std::vector<uint8_t> m_model_buffer;
+
+    const model_parse::ModelHeader* m_model_header = nullptr;
+    const model_parse::ModelInfo* m_model_info = nullptr;
+    const model_parse::ModelData* m_model_data = nullptr;
+};
+
+}  // namespace lite
+
+using namespace lite;
+using namespace model_parse;
+
+std::vector<uint8_t> read_file(std::string path) {
+    FILE* fin = fopen(path.c_str(), "rb");
+    LITE_ASSERT(fin, "failed to open %s: %s", path.c_str(), strerror(errno));
+    fseek(fin, 0, SEEK_END);
+    size_t size = ftell(fin);
+    fseek(fin, 0, SEEK_SET);
+    std::vector<uint8_t> buf;
+    buf.resize(size);
+    auto nr = fread(buf.data(), size, 1, fin);
+    LITE_ASSERT(nr == 1);
+    fclose(fin);
+    return buf;
+}
+
+FbsHelper::FbsHelper(ModelPacker* packer, std::string model_path) : m_packer(packer) {
+    m_model_buffer = read_file(model_path);
+
+    const char* model_ptr =
+            static_cast<const char*>(static_cast<void*>(m_model_buffer.data()));
+    std::string tag(model_ptr, 12);
+    if (tag == "packed_model") {
+        uint8_t* buffer = m_model_buffer.data() + 12;
+        auto model = GetPackModel(buffer)->models()->Get(0);
+        m_model_header = model->header();
+        m_model_info = model->info();
+        m_model_data = model->data();
+    }
+}
+
+flatbuffers::Offset<ModelHeader> FbsHelper::build_header() {
+    flatbuffers::Offset<flatbuffers::String> name, info_decryption_method,
+            info_parse_method, model_decryption_method, info_cache_parse_method;
+    bool is_fast_run_cache;
+    if (m_model_header) {
+        auto&& header = m_model_header;
+        name = m_builder.CreateSharedString(header->name());
+        info_decryption_method =
+                m_builder.CreateSharedString(header->info_decryption_method());
+        info_parse_method = m_builder.CreateSharedString(header->info_parse_method());
+        model_decryption_method =
+                m_builder.CreateSharedString(header->model_decryption_method());
+        info_cache_parse_method =
+                m_builder.CreateSharedString(header->info_cache_parse_method());
+        is_fast_run_cache = header->is_fast_run_cache();
+    } else {
+        auto&& header = m_packer->m_header;
+        name = m_builder.CreateSharedString(header.name);
+        info_decryption_method =
+                m_builder.CreateSharedString(header.info_decryption_method);
+        info_parse_method = m_builder.CreateSharedString(header.info_parse_method);
+        model_decryption_method =
+                m_builder.CreateSharedString(header.model_decryption_method);
+        info_cache_parse_method =
+                m_builder.CreateSharedString(header.info_cache_parse_method);
+        is_fast_run_cache = header.fb32.is_fast_run_cache;
+    }
+    return CreateModelHeader(
+            m_builder, name, info_decryption_method, info_parse_method,
+            model_decryption_method, info_cache_parse_method, is_fast_run_cache);
+}
+
+flatbuffers::Offset<ModelData> FbsHelper::build_data() {
+    if (m_model_data) {
+        auto data = m_model_data->data()->Data();
+        auto size = m_model_data->data()->size();
+        return CreateModelData(m_builder, m_builder.CreateVector(data, size));
+    } else {
+        return CreateModelData(m_builder, m_builder.CreateVector(m_model_buffer));
+    }
+}
+
+flatbuffers::Offset<ModelInfo> FbsHelper::build_info() {
+    flatbuffers::Offset<flatbuffers::Vector<uint8_t>> fb_data;
+    if (m_model_info && m_model_info->data() && m_packer->m_info_data_path.empty()) {
+        auto data = m_model_info->data()->Data();
+        auto size = m_model_info->data()->size();
+        fb_data = m_builder.CreateVector(data, size);
+    } else if (!m_packer->m_info_data_path.empty()) {
+        auto info_data = read_file(m_packer->m_info_data_path);
+        fb_data = m_builder.CreateVector(info_data);
+    }
+
+    flatbuffers::Offset<flatbuffers::Vector<uint8_t>> fb_algo_policy;
+    flatbuffers::Offset<flatbuffers::Vector<uint8_t>> fb_binary_cache;
+    if (m_packer->m_header.fb32.is_fast_run_cache) {
+        std::vector<uint8_t> info_algo_policy;
+        if (!m_packer->m_info_algo_policy_path.empty()) {
+            info_algo_policy = read_file(m_packer->m_info_algo_policy_path);
+            if (m_model_info && m_model_info->algo_policy()) {
+                auto cache = m_model_info->algo_policy()->Data();
+                auto size = m_model_info->algo_policy()->size();
+
+                uint32_t nr_category_1, nr_category_2, nr_category;
+                memcpy(&nr_category_1, cache, sizeof(uint32_t));
+                memcpy(&nr_category_2, info_algo_policy.data(), sizeof(uint32_t));
+                nr_category = nr_category_1 + nr_category_2;
+
+                std::vector<uint8_t> cache_append;
+                cache_append.resize(sizeof(nr_category));
+                memcpy(cache_append.data(), &nr_category, sizeof(nr_category));
+                cache_append.insert(
+                        cache_append.end(), cache + sizeof(nr_category), cache + size);
+                cache_append.insert(
+                        cache_append.end(),
+                        info_algo_policy.begin() + sizeof(nr_category),
+                        info_algo_policy.end());
+
+                fb_algo_policy = m_builder.CreateVector(cache_append);
+            } else {
+                fb_algo_policy = m_builder.CreateVector(info_algo_policy);
+            }
+        }
+#if LITE_BUILD_WITH_MGE
+        else {
+            info_algo_policy = static_cast<mgb::InFilePersistentCache&>(
+                                       mgb::PersistentCache::inst())
+                                       .dump_cache();
+            fb_algo_policy = m_builder.CreateVector(info_algo_policy);
+        }
+#endif
+    }
+
+    ModelInfoBuilder builder(m_builder);
+    builder.add_data(fb_data);
+    builder.add_algo_policy(fb_algo_policy);
+    builder.add_binary_cache(fb_binary_cache);
+    return builder.Finish();
+}
+
+ModelPacker::ModelPacker(
+        std::string model_path, std::string packed_model_path,
+        std::string info_data_path, std::string info_algo_policy_path,
+        std::string info_binary_cache_path)
+        : m_packed_model_path(packed_model_path),
+          m_info_data_path(info_data_path),
+          m_info_algo_policy_path(info_algo_policy_path),
+          m_info_binary_cache_path(info_binary_cache_path) {
+    m_fbs_helper = new FbsHelper(this, model_path);
+}
+
+void ModelPacker::set_header(
+        std::string model_decryption_method, std::string info_decryption_method,
+        bool is_fast_run_cache) {
+    m_header.model_decryption_method = model_decryption_method;
+    m_header.info_decryption_method = info_decryption_method;
+    memset(&m_header.fb32, 0, sizeof(m_header.fb32));
+    m_header.fb32.is_fast_run_cache = is_fast_run_cache;
+    if (!m_info_data_path.empty()) {
+        auto buf = read_file(m_info_data_path);
+        std::string json_string(
+                static_cast<const char*>(static_cast<void*>(buf.data())), buf.size());
+        auto info = nlohmann::json::parse(json_string);
+        m_header.name = info["name"];
+    }
+}
+
+void ModelPacker::pack_model() {
+    auto fb_header = m_fbs_helper->build_header();
+    auto fb_info = m_fbs_helper->build_info();
+    auto fb_data = m_fbs_helper->build_data();
+
+    ModelBuilder model_builder(m_fbs_helper->builder());
+    model_builder.add_header(fb_header);
+    model_builder.add_info(fb_info);
+    model_builder.add_data(fb_data);
+
+    auto model = model_builder.Finish();
+    std::vector<flatbuffers::Offset<Model>> models;
+    models.emplace_back(model);
+    auto fb_models = m_fbs_helper->builder().CreateVector(models);
+
+    PackModelBuilder pack_model_builder(m_fbs_helper->builder());
+    pack_model_builder.add_models(fb_models);
+    m_fbs_helper->builder().Finish(pack_model_builder.Finish());
+
+    FILE* fptr = fopen(m_packed_model_path.c_str(), "wb");
+    std::string packed_model_tag = "packed_model";
+    auto nr_tag = fwrite(packed_model_tag.c_str(), 1, packed_model_tag.size(), fptr);
+    LITE_ASSERT(nr_tag == packed_model_tag.size());
+
+    auto fb_size = m_fbs_helper->builder().GetSize();
+    auto nr_fb = fwrite(m_fbs_helper->builder().GetBufferPointer(), 1, fb_size, fptr);
+    LITE_ASSERT(nr_fb == fb_size);
+    fclose(fptr);
+}
\ No newline at end of file

lite/src/parse_info/cache_parse.h

+/**
+ * \file src/parse_info/cache_parse.h
+ * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
+ *
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ */
+
+#pragma once
+#include "lite/global.h"
+#if LITE_BUILD_WITH_MGE
+#include "megbrain/utils/infile_persistent_cache.h"
+#endif
+
+namespace lite {
+//! The LITE_parse_cache parse info function
+bool parse_info_cache(
+        const uint8_t* cache, size_t cache_length, bool is_fast_run_cache = true,
+        const uint8_t* binary_cache = nullptr, size_t binary_cache_length = 0) {
+    LITE_MARK_USED_VAR(binary_cache);
+    LITE_MARK_USED_VAR(binary_cache_length);
+#if LITE_BUILD_WITH_MGE
+    if (is_fast_run_cache) {
+        mgb::PersistentCache::set_impl(
+                std::make_shared<mgb::InFilePersistentCache>(cache, cache_length));
+    }
+#endif
+    return true;
+}
+
+}  // namespace lite
+
+// vim: syntax=cpp.doxygen foldmethod=marker foldmarker=f{{{,f}}}

lite/src/parse_model/model_parser.cpp

@@ -11,6 +11,7 @@
 
 #include "model_parser.h"
 #include "decryption/decrypt_base.h"
+#include "parse_info/cache_parse.h"
 #include "parse_info/parse_info_base.h"
 
 using namespace lite;
@@ -41,6 +42,10 @@ void ModelParser::parse_header() {
     m_model_decryption_name = model->header()->model_decryption_method()->c_str();
     m_info_decryption_name = model->header()->info_decryption_method()->c_str();
     m_info_parse_func_name = model->header()->info_parse_method()->c_str();
+    if (model->header()->info_cache_parse_method())
+        m_info_cache_parse_func_name =
+                model->header()->info_cache_parse_method()->c_str();
+    m_is_fast_run_cache = model->header()->is_fast_run_cache();
 
     m_info = model->info();
     m_model_data = model->data();
@@ -54,31 +59,52 @@ bool ModelParser::parse_model_info(
     if (m_is_bare_model || !m_info) {
         return false;
     }
-    size_t info_length = m_info->data()->size();
-    const uint8_t* info_data = m_info->data()->Data();
-    //! decryption the info
-    auto info_ptr =
-            decrypt_memory(info_data, info_length, m_info_decryption_name, info_length);
-    //! parse the info
-    LITE_LOCK_GUARD(parse_info_static_data().map_mutex);
-    auto it_parse =
-            parse_info_static_data().parse_info_methods.find(m_info_parse_func_name);
-    if (it_parse == parse_info_static_data().parse_info_methods.end()) {
-        LITE_THROW(ssprintf(
-                "can't find model info parse function %s.",
-                m_info_parse_func_name.c_str()));
+    //! parse ModelInfo::data
+    if (m_info->data()) {
+        size_t info_length = m_info->data()->size();
+        const uint8_t* info_data = m_info->data()->Data();
+        //! decryption the info
+        auto info_ptr = decrypt_memory(
+                info_data, info_length, m_info_decryption_name, info_length);
+        //! parse the info
+        LITE_LOCK_GUARD(parse_info_static_data().map_mutex);
+        auto it_parse = parse_info_static_data().parse_info_methods.find(
+                m_info_parse_func_name);
+        if (it_parse == parse_info_static_data().parse_info_methods.end()) {
+            LITE_THROW(ssprintf(
+                    "can't find model info parse function %s.",
+                    m_info_parse_func_name.c_str()));
+        }
+        auto model_info_parse_func =
+                parse_info_static_data().parse_info_methods[m_info_parse_func_name];
+        //! convert for NetworkIOInner to NetworkIO
+        if (model_info_parse_func) {
+            model_info_parse_func(
+                    info_ptr.get(), info_length, m_model_name, network_config,
+                    network_io, isolated_config_map, extra_info);
+        } else {
+            LITE_THROW(ssprintf(
+                    "model info parse function of  %s is empty",
+                    m_info_parse_func_name.c_str()));
+        }
     }
-    auto model_info_parse_func =
-            parse_info_static_data().parse_info_methods[m_info_parse_func_name];
-    //! convert for NetworkIOInner to NetworkIO
-    if (model_info_parse_func) {
-        model_info_parse_func(
-                info_ptr.get(), info_length, m_model_name, network_config, network_io,
-                isolated_config_map, extra_info);
-    } else {
-        LITE_THROW(ssprintf(
-                "model info parse function of  %s is empty",
-                m_info_parse_func_name.c_str()));
+    //! parse ModelInfo::algo_policy
+    if (m_info->algo_policy()) {
+        size_t cache_length = m_info->algo_policy()->size();
+        const uint8_t* cache = m_info->algo_policy()->Data();
+        if (m_info_cache_parse_func_name == "LITE_parse_cache") {
+            if (m_is_fast_run_cache) {
+                parse_info_cache(cache, cache_length);
+            } else if (m_info->binary_cache()) {
+                size_t binary_cache_length = m_info->binary_cache()->size();
+                const uint8_t* binary_cache = m_info->binary_cache()->Data();
+                parse_info_cache(
+                        cache, cache_length, m_is_fast_run_cache, binary_cache,
+                        binary_cache_length);
+            } else {
+                LITE_THROW("opencl binary cache is not given");
+            }
+        }
     }
     return true;
 }

lite/src/parse_model/model_parser.h

@@ -60,6 +60,8 @@ private:
     std::string m_model_decryption_name;
     //! the function name to parse the model info
     std::string m_info_parse_func_name;
+    std::string m_info_cache_parse_func_name;
+    bool m_is_fast_run_cache;
     //! if a model is not added json info to the model is not crypted, the
     //! model is a bare model
     bool m_is_bare_model = true;

lite/src/parse_model/pack_model.fbs

@@ -5,10 +5,14 @@ table ModelHeader {
     info_decryption_method:string;
     info_parse_method:string;
     model_decryption_method:string;
+    info_cache_parse_method:string;
+    is_fast_run_cache:bool;
 }
 
 table ModelInfo {
     data:[ubyte];
+    algo_policy:[ubyte];
+    binary_cache:[ubyte];
 }
 
 table ModelData {

lite/test/test_network.cpp

@@ -970,6 +970,25 @@ TEST(TestNetWork, LoadPackedModel) {
     network->wait();
 }
 
+TEST(TestNetWork, LoadPackedCacheModel) {
+    auto tensor = get_input_data("./input_data.npy");
+    std::string model_path = "./test_pack_cache_to_model.lite";
+    std::string input_name = "data";
+
+    NetworkIO IO;
+    Config config;
+    std::shared_ptr<Network> network = std::make_shared<Network>(config, IO);
+    network->load_model(model_path);
+    std::shared_ptr<Tensor> input_tensor = network->get_io_tensor(input_name);
+
+    auto src_ptr = tensor->get_memory_ptr();
+    auto src_layout = tensor->get_layout();
+    input_tensor->reset(src_ptr, src_layout);
+
+    network->forward();
+    network->wait();
+}
+
 TEST(TestNetWork, GlabalLayoutTransform) {
     auto tensor = get_input_data("./input_data.npy");
     std::string model_path = "./shufflenet.mge";

src/core/impl/utils/infile_persistent_cache.cpp

@@ -216,6 +216,46 @@ void InFilePersistentCache::dump_cache(OutputFile* out_file) {
         }
     }
 }
+
+std::vector<uint8_t> InFilePersistentCache::dump_cache() {
+    std::vector<uint8_t> ret;
+
+    uint32_t nr_category = m_cache.size();
+    ret.resize(sizeof(nr_category));
+    memcpy(ret.data(), &nr_category, sizeof(nr_category));
+
+    auto write_to_buffer = [&ret](uint32_t val) {
+        std::vector<uint8_t> vec(sizeof(val));
+        memcpy(vec.data(), &val, sizeof(val));
+        ret.insert(ret.end(), vec.begin(), vec.end());
+    };
+
+    for (const auto& cached_category : m_cache) {
+        uint32_t category_size = cached_category.first.size();
+        write_to_buffer(category_size);
+        std::vector<uint8_t> category(
+                cached_category.first.begin(), cached_category.first.end());
+        ret.insert(ret.end(), category.begin(), category.end());
+
+        uint32_t nr_bobs = cached_category.second.size();
+        write_to_buffer(nr_bobs);
+        for (const auto& item : cached_category.second) {
+            uint32_t size_first = item.first.size;
+            write_to_buffer(size_first);
+            ret.insert(
+                    ret.end(), item.first.data_refhold.get(),
+                    item.first.data_refhold.get() + size_first);
+
+            uint32_t size_second = item.second.size;
+            write_to_buffer(size_second);
+            ret.insert(
+                    ret.end(), item.second.data_refhold.get(),
+                    item.second.data_refhold.get() + size_second);
+        }
+    }
+    return ret;
+}
+
 Maybe<InFilePersistentCache::Blob> InFilePersistentCache::get(
         const std::string& category, const Blob& key) {
     decltype(m_cache.begin()) iter0;

src/core/include/megbrain/utils/infile_persistent_cache.h

@@ -71,6 +71,7 @@ public:
      */
     MGE_WIN_DECLSPEC_FUC void dump_cache(const char* path);
     MGE_WIN_DECLSPEC_FUC void dump_cache(OutputFile* out_file);
+    MGE_WIN_DECLSPEC_FUC std::vector<uint8_t> dump_cache();
 
     MGE_WIN_DECLSPEC_FUC Maybe<Blob> get(
             const std::string& category, const Blob& key) override;