diff --git a/lite/include/lite/pack_model.h b/lite/include/lite/pack_model.h
index fb2ab181..48ade7c0 100644
--- a/lite/include/lite/pack_model.h
+++ b/lite/include/lite/pack_model.h
@@ -1,15 +1,5 @@
-/**
- * \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 <memory>
 #include <string>
 #include <vector>
 namespace lite {
@@ -67,7 +57,7 @@ private:
     Header m_header;
 
     friend class FbsHelper;
-    FbsHelper* m_fbs_helper;
+    std::shared_ptr<FbsHelper> m_fbs_helper;
 };
 
 }  // namespace lite
\ No newline at end of file
diff --git a/lite/load_and_run/BUILD b/lite/load_and_run/BUILD
index 5940b300..1c865f9e 100644
--- a/lite/load_and_run/BUILD
+++ b/lite/load_and_run/BUILD
@@ -5,7 +5,6 @@ cc_library(
     hdrs = glob(["src/**/*.h"]),
     includes = ["src"],
     features = if_opt([
-        "no_exceptions",
         "no_rtti",
     ]),
 
diff --git a/lite/load_and_run/src/helpers/common.h b/lite/load_and_run/src/helpers/common.h
index 90499393..3616f910 100644
--- a/lite/load_and_run/src/helpers/common.h
+++ b/lite/load_and_run/src/helpers/common.h
@@ -1,15 +1,7 @@
-/**
- * \file lite/load_and_run/src/helpers/common.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 <memory>
+#include <unordered_map>
 DECLARE_int32(thread);
 namespace lar {
 /*!
@@ -71,6 +63,122 @@ enum class OptLayoutType {
     NHWCD4 = 1 << 6,
     NCHW44_DOT = 1 << 7
 };
+/**
+ *  base class to story option value
+ */
+enum class JsonValueType {
+    Bool = 0,
+    Number,
+    NumberInt32,
+    NumberUint64,
+    String,
+
+};
+struct Value {
+    virtual JsonValueType get_type() const = 0;
+    virtual std::string type_string() const = 0;
+    virtual void reset_value() = 0;
+    virtual ~Value() = default;
+};
+
+/**
+ * class for double option
+ */
+struct Number final : public Value {
+    Number(double v) : m_val(v), m_default_val(v) {}
+    static std::shared_ptr<Number> make(double v) {
+        return std::make_shared<Number>(v);
+    }
+    void set_value(double v) { m_val = v; }
+    double get_value() { return m_val; }
+    double get_default() { return m_default_val; }
+    void reset_value() override { m_val = m_default_val; }
+    JsonValueType get_type() const override { return JsonValueType::Number; }
+    std::string type_string() const override { return "Number"; }
+
+private:
+    double m_val;
+    double m_default_val;
+};
+
+/**
+ * class for int32_t option
+ */
+struct NumberInt32 final : public Value {
+    NumberInt32(int32_t v) : m_val(v), m_default_val(v) {}
+    static std::shared_ptr<NumberInt32> make(int32_t v) {
+        return std::make_shared<NumberInt32>(v);
+    }
+    void set_value(int32_t v) { m_val = v; }
+    int32_t get_value() { return m_val; }
+    int32_t get_default() { return m_default_val; }
+    void reset_value() override { m_val = m_default_val; }
+    JsonValueType get_type() const override { return JsonValueType::NumberInt32; }
+    std::string type_string() const override { return "NumberInt32"; }
+
+private:
+    int32_t m_val;
+    int32_t m_default_val;
+};
+/**
+ * class for uint64 option
+ */
+struct NumberUint64 final : public Value {
+    NumberUint64(uint64_t v) : m_val(v), m_default_val(v) {}
+    static std::shared_ptr<NumberUint64> make(uint64_t v) {
+        return std::make_shared<NumberUint64>(v);
+    }
+    void set_value(uint64_t v) { m_val = v; }
+    uint64_t get_value() { return m_val; }
+    uint64_t get_default() { return m_default_val; }
+    void reset_value() override { m_val = m_default_val; }
+    JsonValueType get_type() const override { return JsonValueType::NumberUint64; }
+    std::string type_string() const override { return "NumberUint64"; }
+
+private:
+    uint64_t m_val;
+    uint64_t m_default_val;
+};
+
+/**
+ * class for boolean option
+ */
+struct Bool final : public Value {
+    Bool(bool v) : m_val(v), m_default_val(v) {}
+    static std::shared_ptr<Bool> make(bool v) { return std::make_shared<Bool>(v); }
+    void set_value(bool v) { m_val = v; }
+    bool get_value() { return m_val; }
+    bool get_default() { return m_default_val; }
+    void reset_value() override { m_val = m_default_val; }
+    JsonValueType get_type() const override { return JsonValueType::Bool; }
+    std::string type_string() const override { return "Bool"; }
+
+private:
+    bool m_val;
+    bool m_default_val;
+};
+
+/**
+ * class for string option
+ */
+struct String final : public Value {
+    String(std::string v) : m_val(v), m_default_val(v) {}
+    static std::shared_ptr<String> make(const std::string& v) {
+        return std::make_shared<String>(v);
+    }
+    void set_value(const std::string& v) { m_val = v; }
+    std::string& get_value() { return m_val; }
+    std::string get_default() { return m_default_val; }
+    void reset_value() override { m_val = m_default_val; }
+    JsonValueType get_type() const override { return JsonValueType::String; }
+    std::string type_string() const override { return "String"; }
+
+private:
+    std::string m_val;
+    std::string m_default_val;
+};
+
+using OptionValMap = std::unordered_map<std::string, std::shared_ptr<lar::Value>>;
 
 }  // namespace lar
 // vim: syntax=cpp.doxygen
diff --git a/lite/load_and_run/src/helpers/json_loader.cpp b/lite/load_and_run/src/helpers/json_loader.cpp
index ef385502..8818b9e0 100644
--- a/lite/load_and_run/src/helpers/json_loader.cpp
+++ b/lite/load_and_run/src/helpers/json_loader.cpp
@@ -5,9 +5,7 @@ using namespace mgb;
 template <typename T>
 T* JsonLoader::Value::safe_cast() {
     T* ptr = (T*)(this);
-    if (nullptr == ptr) {
-        fprintf(stderr, "cast ptr is null\n");
-    }
+    mgb_assert(nullptr != ptr, "cast ptr is null\n");
     return ptr;
 }
 
@@ -31,6 +29,12 @@ std::map<std::string, std::unique_ptr<JsonLoader::Value>>& JsonLoader::Value::
     return t->m_obj;
 }
 
+std::vector<std::string>& JsonLoader::Value::keys() {
+    mgb_assert(Type::OBJECT == m_type);
+    auto t = safe_cast<JsonLoader::ObjectValue>();
+    return t->m_keys;
+}
+
 size_t JsonLoader::Value::len() {
     if (Type::ARRAY == m_type) {
         auto t = safe_cast<JsonLoader::ArrayValue>();
@@ -54,6 +58,12 @@ double JsonLoader::Value::number() {
     return t->value();
 }
 
+bool JsonLoader::Value::Bool() {
+    mgb_assert(Type::BOOL == m_type);
+    auto t = safe_cast<JsonLoader::BoolValue>();
+    return t->value();
+}
+
 std::string JsonLoader::Value::str() {
     if (Type::STRING == m_type) {
         auto t = safe_cast<StringValue>();
@@ -69,7 +79,7 @@ void JsonLoader::expect(char c) {
 
 void JsonLoader::skip_whitespace() {
     const char* p = m_buf;
-    while (*p == ' ' || *p == '\t' || *p == '\n' || *p == '\r') {
+    while (' ' == *p || '\t' == *p || '\n' == *p || '\r' == *p) {
         ++p;
     }
     m_buf = p;
@@ -80,11 +90,12 @@ std::unique_ptr<JsonLoader::Value> JsonLoader::parse_object() {
     skip_whitespace();
 
     std::unique_ptr<JsonLoader::Value> ret;
-    JsonLoader::ObjectValue* pObject = new JsonLoader::ObjectValue();
+    std::unique_ptr<JsonLoader::ObjectValue> pObject =
+            std::make_unique<JsonLoader::ObjectValue>();
 
     if ('}' == *m_buf) {
         m_buf = m_buf + 1;
-        ret.reset((JsonLoader::Value*)(pObject));
+        ret = std::move(pObject);
         return ret;
     }
 
@@ -113,6 +124,7 @@ std::unique_ptr<JsonLoader::Value> JsonLoader::parse_object() {
         }
 
         pObject->m_obj.insert(std::make_pair(key->str(), std::move(pVal)));
+        pObject->m_keys.push_back(key->str());
 
         skip_whitespace();
         if (',' == (*m_buf)) {
@@ -126,22 +138,21 @@ std::unique_ptr<JsonLoader::Value> JsonLoader::parse_object() {
             break;
         }
     }
-
-    ret.reset((JsonLoader::Value*)(pObject));
+    ret = std::move(pObject);
     return ret;
 }
 
 std::unique_ptr<JsonLoader::Value> JsonLoader::parse_array() {
     expect('[');
     skip_whitespace();
-
     std::unique_ptr<JsonLoader::Value> ret;
-    JsonLoader::ArrayValue* pArray = new JsonLoader::ArrayValue();
+    std::unique_ptr<JsonLoader::ArrayValue> pArray =
+            std::make_unique<JsonLoader::ArrayValue>();
 
     if (']' == *m_buf) {
         m_buf = m_buf + 1;
 
-        ret.reset((JsonLoader::Value*)(pArray));
+        ret = std::move(pArray);
         return ret;
     }
 
@@ -168,15 +179,14 @@ std::unique_ptr<JsonLoader::Value> JsonLoader::parse_array() {
         }
     }
 
-    ret.reset((JsonLoader::Value*)(pArray));
+    ret = std::move(pArray);
     return ret;
 }
 
 std::unique_ptr<JsonLoader::Value> JsonLoader::parse_string() {
     expect('\"');
-
-    std::unique_ptr<JsonLoader::Value> ret;
-    JsonLoader::StringValue* pStr = new JsonLoader::StringValue();
+    std::unique_ptr<JsonLoader::StringValue> pStr =
+            std::make_unique<JsonLoader::StringValue>();
 
     const char* p = m_buf;
     while (true) {
@@ -189,7 +199,7 @@ std::unique_ptr<JsonLoader::Value> JsonLoader::parse_string() {
         }
     }
     m_buf = p;
-    ret.reset((JsonLoader::Value*)(pStr));
+    std::unique_ptr<JsonLoader::Value> ret = std::move(pStr);
     return ret;
 }
 
@@ -207,31 +217,31 @@ std::unique_ptr<JsonLoader::Value> JsonLoader::parse_number() {
         return;
     };
 
-    if (*p == '-')
+    if ('-' == *p)
         p++;
-    if (*p == '0')
+    if ('0' == *p)
         p++;
     else {
         loop_digit(std::ref(p));
     }
-    if (*p == '.') {
+    if ('.' == *p) {
         p++;
         loop_digit(std::ref(p));
     }
 
-    if (*p == 'e' || *p == 'E') {
+    if ('e' == *p || 'E' == *p) {
         p++;
-        if (*p == '+' || *p == '-')
+        if ('+' == *p || '-' == *p)
             p++;
         loop_digit(std::ref(p));
     }
-    JsonLoader::NumberValue* pNum = new JsonLoader::NumberValue();
+    std::unique_ptr<JsonLoader::NumberValue> pNum =
+            std::make_unique<JsonLoader::NumberValue>();
     pNum->m_value = strtod(m_buf, nullptr);
 
     m_buf = p;
 
-    std::unique_ptr<JsonLoader::Value> ret;
-    ret.reset((JsonLoader::Value*)(pNum));
+    std::unique_ptr<JsonLoader::Value> ret = std::move(pNum);
     return ret;
 }
 
@@ -243,6 +253,10 @@ std::unique_ptr<JsonLoader::Value> JsonLoader::parse_value() {
             return parse_object();
         case '\"':
             return parse_string();
+        case 't':
+            return parse_bool();
+        case 'f':
+            return parse_bool();
         case '\0':
             m_state = State::BAD_TYPE;
             break;
@@ -252,6 +266,37 @@ std::unique_ptr<JsonLoader::Value> JsonLoader::parse_value() {
     return nullptr;
 }
 
+std::unique_ptr<JsonLoader::Value> JsonLoader::parse_bool() {
+    const char* p = m_buf;
+    std::string value;
+    if ('t' == *p) {
+        value = "";
+        for (size_t idx = 0; idx < 4; ++idx) {
+            value += *p++;
+        }
+    } else if ('f' == *p) {
+        value = "";
+        for (size_t idx = 0; idx < 5; ++idx) {
+            value += *p++;
+        }
+    }
+    bool val = false;
+    if ("true" == value) {
+        val = true;
+    } else if ("false" == value) {
+        val = false;
+    } else {
+        mgb_log_error("invalid value: %s for possible bool value", value.c_str());
+    }
+
+    std::unique_ptr<JsonLoader::BoolValue> pBool =
+            std::make_unique<JsonLoader::BoolValue>();
+    pBool->m_value = val;
+    m_buf = p;
+    std::unique_ptr<JsonLoader::Value> ret = std::move(pBool);
+    return ret;
+}
+
 std::unique_ptr<JsonLoader::Value> JsonLoader::load(
         const char* content, const size_t size) {
     m_buf = content;
diff --git a/lite/load_and_run/src/helpers/json_loader.h b/lite/load_and_run/src/helpers/json_loader.h
index 9c862b5d..15bcac49 100644
--- a/lite/load_and_run/src/helpers/json_loader.h
+++ b/lite/load_and_run/src/helpers/json_loader.h
@@ -18,7 +18,7 @@ public:
     // base class for different value format
     class Value {
     protected:
-        enum struct Type : uint8_t { UNKNOWN, NUMBER, STRING, OBJECT, ARRAY };
+        enum struct Type : uint8_t { UNKNOWN, NUMBER, STRING, OBJECT, ARRAY, BOOL };
         Type m_type;
 
     public:
@@ -39,12 +39,16 @@ public:
 
         bool is_str() { return Type::STRING == m_type; }
 
+        bool is_bool() { return Type::BOOL == m_type; }
+
         std::unique_ptr<Value>& operator[](const std::string& key);
 
         std::unique_ptr<Value>& operator[](const size_t index);
 
         std::map<std::string, std::unique_ptr<Value>>& objects();
 
+        std::vector<std::string>& keys();
+
         size_t len();
 
         megdnn::SmallVector<std::unique_ptr<Value>>& array();
@@ -52,6 +56,8 @@ public:
         double number();
 
         std::string str();
+
+        bool Bool();
     };
 
     void expect(char c);
@@ -68,6 +74,8 @@ public:
 
     std::unique_ptr<Value> parse_value();
 
+    std::unique_ptr<Value> parse_bool();
+
     enum struct State : uint8_t {
         OK = 0,
         BAD_TYPE,
@@ -137,21 +145,26 @@ public:
 
     class ObjectValue final : public Value {
         std::map<std::string, std::unique_ptr<Value>> m_obj;
+        std::vector<std::string> m_keys;
 
     public:
         ObjectValue() : Value(Type::OBJECT) {}
 
         ObjectValue(ObjectValue& arr) : Value(arr) {
             m_obj.clear();
+            m_keys.clear();
             for (auto itra = arr.m_obj.begin(); itra != arr.m_obj.end(); ++itra) {
                 m_obj.emplace(std::make_pair(itra->first, std::move(itra->second)));
+                m_keys.push_back(itra->first);
             }
         }
 
         ObjectValue(ObjectValue&& arr) : Value(arr) {
             m_obj.clear();
+            m_keys.clear();
             for (auto itra = arr.m_obj.begin(); itra != arr.m_obj.end(); ++itra) {
                 m_obj.emplace(std::make_pair(itra->first, std::move(itra->second)));
+                m_keys.push_back(itra->first);
             }
         }
 
@@ -160,9 +173,19 @@ public:
                 const std::string&);
         friend std::map<std::string, std::unique_ptr<JsonLoader::Value>>& JsonLoader::
                 Value::objects();
+        friend std::vector<std::string>& JsonLoader::Value::keys();
         friend size_t JsonLoader::Value::len();
     };
 
+    class BoolValue final : public Value {
+        bool m_value;
+
+    public:
+        BoolValue() : Value(Type::BOOL) {}
+        bool value() { return m_value; }
+        friend std::unique_ptr<Value> JsonLoader::parse_bool();
+    };
+
 private:
     const char* m_buf;
     State m_state;
diff --git a/lite/load_and_run/src/helpers/utils.cpp b/lite/load_and_run/src/helpers/utils.cpp
new file mode 100644
index 00000000..a40129de
--- /dev/null
+++ b/lite/load_and_run/src/helpers/utils.cpp
@@ -0,0 +1,362 @@
+#include "utils.h"
+using namespace lar;
+
+/////////////////// JsonOptionsCoder ///////////////////
+#if MGB_ENABLE_JSON
+//! encode option
+
+void encode_single_options(
+        std::pair<std::string, std::shared_ptr<lar::Value>> item,
+        std::vector<std::pair<mgb::json::String, std::shared_ptr<mgb::json::Value>>>&
+                list,
+        bool encode_all) {
+    auto type = item.second->get_type();
+    if (type == JsonValueType::Bool) {
+        auto val_ptr = std::static_pointer_cast<lar::Bool>(item.second);
+        if (!encode_all && val_ptr->get_value() == val_ptr->get_default()) {
+            return;
+        }
+        list.push_back(
+                {mgb::json::String(item.first),
+                 mgb::json::Bool::make(val_ptr->get_value())});
+    } else if (type == JsonValueType::NumberInt32) {
+        auto val_ptr = std::static_pointer_cast<lar::NumberInt32>(item.second);
+        if (!encode_all && val_ptr->get_value() == val_ptr->get_default()) {
+            return;
+        }
+        list.push_back(
+                {mgb::json::String(item.first),
+                 mgb::json::NumberInt::make(
+                         static_cast<int64_t>(val_ptr->get_value()))});
+    } else if (type == JsonValueType::NumberUint64) {
+        auto val_ptr = std::static_pointer_cast<lar::NumberUint64>(item.second);
+        list.push_back(
+                {mgb::json::String(item.first),
+                 mgb::json::NumberInt::make(
+                         static_cast<int64_t>(val_ptr->get_value()))});
+    } else if (type == JsonValueType::Number) {
+        auto val_ptr = std::static_pointer_cast<lar::Number>(item.second);
+        list.push_back(
+                {mgb::json::String(item.first),
+                 mgb::json::Number::make(val_ptr->get_value())});
+    } else if (type == JsonValueType::String) {
+        auto val_ptr = std::static_pointer_cast<lar::String>(item.second);
+        if (!encode_all && val_ptr->get_value() == val_ptr->get_default()) {
+            return;
+        }
+        list.push_back(
+                {mgb::json::String(item.first),
+                 mgb::json::String::make(val_ptr->get_value())});
+    } else {
+        mgb_log_error(
+                "unsupport JsonValueType:%s for lar::Value",
+                item.second->type_string().c_str());
+    }
+}
+std::string JsonOptionsCoder::encode(OptionValMap& option_val_map, bool encode_all) {
+    std::vector<std::pair<mgb::json::String, std::shared_ptr<mgb::json::Value>>>
+            json_options;
+    for (auto& item : option_val_map) {
+        encode_single_options(item, json_options, encode_all);
+    }
+
+    auto json_obj = mgb::json::Object::make(
+            {{"options", mgb::json::Object::make(json_options)}});
+
+    return json_obj->to_string(1);
+}
+
+//! encode device
+std::vector<std::shared_ptr<mgb::json::Object>> JsonOptionsCoder::encode(
+        OptionValMap& option_val_map) {
+    std::vector<std::shared_ptr<mgb::json::Object>> info;
+    std::vector<std::pair<mgb::json::String, std::shared_ptr<mgb::json::Value>>>
+            json_device;
+    std::vector<std::pair<mgb::json::String, std::shared_ptr<mgb::json::Value>>>
+            json_options;
+    for (auto& item : option_val_map) {
+        if ((item.first == "cpu" || item.first == "cpu_default" ||
+             item.first == "multithread" || item.first == "multithread_default")) {
+            auto type = item.second->get_type();
+            if (type == JsonValueType::Bool) {
+                auto val_ptr = std::static_pointer_cast<lar::Bool>(item.second);
+                if (val_ptr->get_value() == val_ptr->get_default())
+                    continue;
+            }
+            if (type == JsonValueType::NumberInt32) {
+                auto val_ptr = std::static_pointer_cast<lar::Bool>(item.second);
+                if (val_ptr->get_value() == val_ptr->get_default())
+                    continue;
+            }
+            json_device.push_back(
+                    {mgb::json::String("type"), mgb::json::String::make("CPU")});
+
+            if (item.first == "cpu_default" || item.first == "multithread_default") {
+                json_device.push_back(
+                        {mgb::json::String("enable_inplace_model"),
+                         mgb::json::Bool::make(true)});
+            }
+
+            if (item.first == "multithread" || item.first == "multithread_default") {
+                json_device.push_back(
+                        {mgb::json::String("number_threads"),
+                         mgb::json::NumberInt::make(
+                                 std::static_pointer_cast<lar::NumberInt32>(item.second)
+                                         ->get_value())});
+                if (item.first == "multithread") {
+                    json_device.push_back(
+                            {mgb::json::String("device_id"),
+                             mgb::json::NumberInt::make(0)});
+                }
+            }
+
+        } else if (item.first == "cuda") {
+            auto val_ptr = std::static_pointer_cast<lar::Bool>(item.second);
+            if (val_ptr->get_value() == val_ptr->get_default())
+                continue;
+            json_device.push_back(
+                    {mgb::json::String("type"), mgb::json::String::make("CUDA")});
+            json_device.push_back(
+                    {mgb::json::String("device_id"), mgb::json::NumberInt::make(0)});
+        } else if (item.first == "opencl") {
+            auto val_ptr = std::static_pointer_cast<lar::Bool>(item.second);
+            if (val_ptr->get_value() == val_ptr->get_default())
+                continue;
+            json_device.push_back(
+                    {mgb::json::String("type"), mgb::json::String::make("OPENCL")});
+        } else if (
+                item.first == "record_comp_seq" || item.first == "record_comp_seq2") {
+            auto val_ptr = std::static_pointer_cast<lar::Bool>(item.second);
+            if (val_ptr->get_value() == val_ptr->get_default())
+                continue;
+            int comp_node_seq_record_level = item.first == "record_comp_seq" ? 1 : 2;
+            json_options.push_back(
+                    {mgb::json::String("comp_node_seq_record_level"),
+                     mgb::json::NumberInt::make(comp_node_seq_record_level)});
+        } else if (item.first == "fake_first") {
+            auto val_ptr = std::static_pointer_cast<lar::Bool>(item.second);
+            if (val_ptr->get_value() == val_ptr->get_default())
+                continue;
+            json_options.push_back(
+                    {mgb::json::String("fake_next_exec"),
+                     mgb::json::Bool::make(val_ptr->get_value())});
+        } else if (item.first == "no_sanity_check") {
+            auto val_ptr = std::static_pointer_cast<lar::Bool>(item.second);
+            if (val_ptr->get_value() == val_ptr->get_default())
+                continue;
+            json_options.push_back(
+                    {mgb::json::String("var_sanity_check_first_run"),
+                     mgb::json::Bool::make(!val_ptr->get_value())});
+        } else if (item.first == "weight_preprocess") {
+            auto val_ptr = std::static_pointer_cast<lar::Bool>(item.second);
+            if (val_ptr->get_value() == val_ptr->get_default())
+                continue;
+            json_options.push_back(
+                    {mgb::json::String("weight_preprocess"),
+                     mgb::json::Bool::make(val_ptr->get_value())});
+        }
+    }
+    info.push_back(mgb::json::Object::make(
+            {{"options", mgb::json::Object::make(json_options)}}));
+    info.push_back(mgb::json::Object::make(
+            {{"device", mgb::json::Object::make(json_device)}}));
+    return info;
+}
+//! decode options note string into option map
+OptionValMap& JsonOptionsCoder::decode(
+        const std::string& code, OptionValMap& option_val_map) {
+    std::shared_ptr<mgb::JsonLoader::Value> root =
+            m_json_loader.load(code.c_str(), code.size());
+    for (auto& item : root->objects()) {
+        auto& value = *item.second;
+        //! get all keys in json object
+        auto keys = value.keys();
+
+        //! set the json format options into internal options
+        for (auto& val : keys) {
+            if (value[val]->is_bool()) {
+                auto val_ptr = std::static_pointer_cast<lar::Bool>(option_val_map[val]);
+                val_ptr->set_value(value[val]->Bool());
+            } else if (value[val]->is_number()) {
+                auto type = option_val_map[val]->get_type();
+                if (type == JsonValueType::Number) {
+                    auto val_ptr =
+                            std::static_pointer_cast<lar::Number>(option_val_map[val]);
+                    val_ptr->set_value(value[val]->number());
+                } else if (type == JsonValueType::NumberInt32) {
+                    auto val_ptr = std::static_pointer_cast<lar::NumberInt32>(
+                            option_val_map[val]);
+                    val_ptr->set_value(static_cast<int32_t>(value[val]->number()));
+                } else if (type == JsonValueType::NumberUint64) {
+                    auto val_ptr = std::static_pointer_cast<lar::NumberUint64>(
+                            option_val_map[val]);
+                    val_ptr->set_value(static_cast<uint64_t>(value[val]->number()));
+                } else {
+                    mgb_log_error(
+                            "invalid number type:%s to set",
+                            option_val_map[val]->type_string().c_str());
+                }
+            } else if (value[val]->is_str()) {
+                auto val_ptr =
+                        std::static_pointer_cast<lar::String>(option_val_map[val]);
+                val_ptr->set_value(value[val]->str());
+            } else {
+                mgb_log_error("invalid value type for JsonLoader");
+            }
+        }
+    }
+    return option_val_map;
+}
+
+#endif
+
+std::string GflagsOptionsCoder::encode(OptionValMap& option_val_map, bool encode_all) {
+    std::vector<std::string> gflags_options;
+    for (auto& item : option_val_map) {
+        auto type = item.second->get_type();
+        std::string val = "--";
+        if (type == JsonValueType::Bool) {
+            auto val_ptr = std::static_pointer_cast<lar::Bool>(item.second);
+            if (!encode_all && val_ptr->get_value() == val_ptr->get_default()) {
+                continue;
+            }
+            val += item.first;
+            val += "=";
+            val += val_ptr->get_value() ? "true" : "false";
+            gflags_options.push_back(val);
+        } else if (type == JsonValueType::NumberInt32) {
+            auto val_ptr = std::static_pointer_cast<lar::NumberInt32>(item.second);
+            if (!encode_all && val_ptr->get_value() == val_ptr->get_default()) {
+                continue;
+            }
+            val += item.first;
+            val += "=";
+            val += std::to_string(val_ptr->get_value());
+            gflags_options.push_back(val);
+        } else if (type == JsonValueType::NumberUint64) {
+            auto val_ptr = std::static_pointer_cast<lar::NumberUint64>(item.second);
+            val += item.first;
+            val += "=";
+            val += std::to_string(val_ptr->get_value());
+            gflags_options.push_back(val);
+        } else if (type == JsonValueType::Number) {
+            auto val_ptr = std::static_pointer_cast<lar::Number>(item.second);
+            val += item.first;
+            val += "=";
+            val += std::to_string(val_ptr->get_value());
+            gflags_options.push_back(val);
+        } else if (type == JsonValueType::String) {
+            auto val_ptr = std::static_pointer_cast<lar::String>(item.second);
+            if (!encode_all && val_ptr->get_value() == val_ptr->get_default()) {
+                continue;
+            }
+            val += item.first;
+            val += "=\"";
+            val += val_ptr->get_value();
+            val += "\"";
+            gflags_options.push_back(val);
+        } else {
+            mgb_log_error(
+                    "unsupport JsonValueType:%s for lar::Value",
+                    item.second->type_string().c_str());
+        }
+    }
+    std::string ret;
+    for (auto& item : gflags_options) {
+        ret += item;
+        ret += "\n";
+    }
+
+    return ret;
+}
+
+//! decode options note string into option map
+OptionValMap& GflagsOptionsCoder::decode(
+        const std::string& code, OptionValMap& option_val_map) {
+    std::unordered_map<std::string, std::string> gflags_map;
+    auto to_raw_string = [](const std::string& str) {
+        auto size = str.size();
+        std::string ret;
+        if ('\"' == str[0] && '\"' == str[size - 1]) {
+            ret = str.substr(1, size - 2);
+        } else {
+            ret = str;
+        }
+        return ret;
+    };
+
+    size_t start = 0;
+    size_t end = code.find("\n", start);
+
+    while (end != std::string::npos) {
+        auto str = code.substr(start, end - start);
+        if (str.substr(0, 2) == "--") {
+            size_t idx = str.find("=", 0);
+            gflags_map.insert(
+                    {str.substr(2, idx - 2), to_raw_string(str.substr(idx + 1))});
+        } else {
+            mgb_log_error("invaid gflags argument %s", str.c_str());
+        }
+        start = end + 1;
+        end = code.find("\n", start);
+    }
+    for (auto& item : gflags_map) {
+        if (option_val_map.count(item.first) != 0) {
+            auto& option_val = option_val_map[item.first];
+            auto type = option_val->get_type();
+            if (type == JsonValueType::Bool) {
+                auto val_ptr = std::static_pointer_cast<lar::Bool>(option_val);
+                if (item.second == "true" || item.second == "false") {
+                    auto val = item.second == "true";
+                    val_ptr->set_value(val);
+                }
+            } else if (type == JsonValueType::NumberInt32) {
+                auto val_ptr = std::static_pointer_cast<lar::NumberInt32>(option_val);
+                MGB_TRY {
+                    int32_t val = std::stoi(item.second);
+                    val_ptr->set_value(val);
+                }
+                MGB_CATCH(std::exception & exc, {
+                    mgb_log_error(
+                            "invaid value: %s for %s", item.second.c_str(),
+                            item.first.c_str());
+                });
+            } else if (type == JsonValueType::NumberUint64) {
+                auto val_ptr = std::static_pointer_cast<lar::NumberUint64>(option_val);
+                MGB_TRY {
+                    uint64_t val = std::stoull(item.second);
+                    val_ptr->set_value(val);
+                }
+                MGB_CATCH(std::exception & exc, {
+                    mgb_log_error(
+                            "invaid value: %s for %s", item.second.c_str(),
+                            item.first.c_str());
+                });
+
+            } else if (type == JsonValueType::Number) {
+                auto val_ptr = std::static_pointer_cast<lar::Number>(option_val);
+                MGB_TRY {
+                    double val = std::stod(item.second);
+                    val_ptr->set_value(val);
+                }
+                MGB_CATCH(std::exception & exc, {
+                    mgb_log_error(
+                            "invaid value: %s for %s", item.second.c_str(),
+                            item.first.c_str());
+                });
+            } else if (type == JsonValueType::String) {
+                auto val_ptr = std::static_pointer_cast<lar::String>(option_val);
+                val_ptr->set_value(item.second);
+
+            } else {
+                mgb_log_error(
+                        "unsupport JsonValueType:%s for lar::Value",
+                        option_val->type_string().c_str());
+            }
+        } else {
+            mgb_log_error("invalid gflags when set runtime options in fitting mode");
+        }
+    }
+
+    return option_val_map;
+}
diff --git a/lite/load_and_run/src/helpers/utils.h b/lite/load_and_run/src/helpers/utils.h
new file mode 100644
index 00000000..5d78dc3c
--- /dev/null
+++ b/lite/load_and_run/src/helpers/utils.h
@@ -0,0 +1,69 @@
+#pragma once
+
+#include <vector>
+#include "common.h"
+#include "json_loader.h"
+#include "megbrain/utils/json.h"
+namespace lar {
+/**
+ * fitting profiler type
+ */
+enum class ProiflerType {
+    TIME_PROFILER = 0,
+    UNSPEC_PROFILER = 1,
+};
+/**
+ * option coder type
+ */
+enum class CoderType {
+    GFLAGS = 0,
+    JSON = 1,
+    UNSPEC = 2,
+};
+
+/**
+ *  option coder to transform internal option val into differnet form
+ */
+class OptionsCoder {
+public:
+    OptionsCoder(){};
+    //! encode options into given format
+    virtual std::string encode(OptionValMap&, bool) = 0;
+
+    //! decode options with given format into option map
+    virtual OptionValMap& decode(const std::string&, OptionValMap& val_map) = 0;
+
+    //! destructor
+    virtual ~OptionsCoder() = default;
+};
+
+#if MGB_ENABLE_JSON
+class JsonOptionsCoder final : public OptionsCoder {
+public:
+    JsonOptionsCoder(){};
+
+    //! encode given options into json format
+    std::string encode(OptionValMap&, bool encode_all) override;
+
+    std::vector<std::shared_ptr<mgb::json::Object>> encode(OptionValMap&);
+
+    //! decode given json format options into given options map
+    OptionValMap& decode(const std::string&, OptionValMap&) override;
+
+private:
+    mgb::JsonLoader m_json_loader;
+};
+#endif
+
+class GflagsOptionsCoder final : public OptionsCoder {
+public:
+    GflagsOptionsCoder(){};
+
+    //! encode given options into gflags format
+    std::string encode(OptionValMap&, bool encode_all = false) override;
+
+    //! decode given gflags format options into given options maps
+    OptionValMap& decode(const std::string&, OptionValMap&) override;
+};
+
+}  // namespace lar
\ No newline at end of file
diff --git a/lite/load_and_run/src/main.cpp b/lite/load_and_run/src/main.cpp
index 51242975..86265fc4 100644
--- a/lite/load_and_run/src/main.cpp
+++ b/lite/load_and_run/src/main.cpp
@@ -1,20 +1,37 @@
-/**
- * \file lite/load_and_run/src/main.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 <gflags/gflags.h>
 #include <string>
 #include "strategys/strategy.h"
 
+std::string simple_usage = R"(
+load_and_run: load_and_run <model_path> [options Flags...]
+
+  Flags from lite/load_and_run/src/models/model.cpp:
+    -lite           type: bool      default: false      use megengine lite interface to run model
+
+  Flags from lite/load_and_run/src/options/strategy_options.cpp:
+    -iter           type: int32     default: 10         iteration number for run model
+    -thread         type: int32     default: 1          thread number for run model when <thread> is supported
+    -warmup_iter    type: int32     default: 1          iteration number for warm up model before run
+    
+  Flags from com_github_gflags_gflags/src/gflags.cc:
+    -flagfile       type: string      default: ""       load flags from file
+    -fromenv        type: string      default: ""       set flags from the environment [use 'export FLAGS_flag1=value']
+    ...
+
+  Flags from com_github_gflags_gflags/src/gflags_reporting.cc:
+    -help           type: bool        default: false    show help on all flags
+    -helpmatch      type: string      default: ""       show help on modules whose name contains the specified substr
+    -version        type: bool        default: false    show version and build info and exit
+    ...
+
+More details using "--help" to get!!
+
+)";
+
 int main(int argc, char** argv) {
-    std::string usage = "load_and_run <model_path> [options...]";
+    std::string usage = "load_and_run <model_path> [options Flags...]";
     if (argc < 2) {
-        printf("usage: %s\n", usage.c_str());
+        printf("usage: %s\n", simple_usage.c_str());
         return -1;
     }
     gflags::SetUsageMessage(usage);
diff --git a/lite/load_and_run/src/models/model.cpp b/lite/load_and_run/src/models/model.cpp
index 85b7ab17..c135b899 100644
--- a/lite/load_and_run/src/models/model.cpp
+++ b/lite/load_and_run/src/models/model.cpp
@@ -1,12 +1,3 @@
-
-/**
- * \file lite/load_and_run/src/models/model.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.h"
 #include <iostream>
 #include <memory>
@@ -56,5 +47,5 @@ std::shared_ptr<ModelBase> ModelBase::create_model(std::string model_path) {
         return nullptr;
     }
 }
-DEFINE_bool(lite, false, "using lite model to run mdl model");
+DEFINE_bool(lite, false, "use megengine lite interface to run model");
 // vim: syntax=cpp.doxygen foldmethod=marker foldmarker=f{{{,f}}}
diff --git a/lite/load_and_run/src/models/model.h b/lite/load_and_run/src/models/model.h
index 586c241f..2e6f9b57 100644
--- a/lite/load_and_run/src/models/model.h
+++ b/lite/load_and_run/src/models/model.h
@@ -1,17 +1,8 @@
-/**
- * \file lite/load_and_run/src/models/model.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 <string>
 #include "helpers/common.h"
-
+#include "megbrain/utils/json.h"
 DECLARE_bool(lite);
 
 namespace lar {
@@ -45,6 +36,12 @@ public:
     virtual ~ModelBase() = default;
 
     virtual const std::string& get_model_path() const = 0;
+
+    virtual std::vector<uint8_t> get_model_data() = 0;
+#if MGB_ENABLE_JSON
+    //! get model io information
+    virtual std::shared_ptr<mgb::json::Object> get_io_info() = 0;
+#endif
 };
 }  // namespace lar
 
diff --git a/lite/load_and_run/src/models/model_lite.cpp b/lite/load_and_run/src/models/model_lite.cpp
index 7a913af0..656e1d9e 100644
--- a/lite/load_and_run/src/models/model_lite.cpp
+++ b/lite/load_and_run/src/models/model_lite.cpp
@@ -1,14 +1,7 @@
-/**
- * \file lite/load_and_run/src/models/model_lite.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_lite.h"
 #include <gflags/gflags.h>
 #include <cstring>
+#include <map>
 #include "misc.h"
 
 DECLARE_bool(share_param_mem);
@@ -51,3 +44,75 @@ void ModelLite::run_model() {
 void ModelLite::wait() {
     m_network->wait();
 }
+#if MGB_ENABLE_JSON
+std::shared_ptr<mgb::json::Object> ModelLite::get_io_info() {
+    std::shared_ptr<mgb::json::Array> inputs = mgb::json::Array::make();
+    std::shared_ptr<mgb::json::Array> outputs = mgb::json::Array::make();
+
+    auto get_dtype = [&](lite::Layout& layout) {
+        std::map<LiteDataType, std::string> type_map = {
+                {LiteDataType::LITE_FLOAT, "float32"},
+                {LiteDataType::LITE_HALF, "float16"},
+                {LiteDataType::LITE_INT64, "int64"},
+                {LiteDataType::LITE_INT, "int32"},
+                {LiteDataType::LITE_UINT, "uint32"},
+                {LiteDataType::LITE_INT16, "int16"},
+                {LiteDataType::LITE_UINT16, "uint16"},
+                {LiteDataType::LITE_INT8, "int8"},
+                {LiteDataType::LITE_UINT8, "uint8"}};
+        return type_map[layout.data_type];
+    };
+    auto make_shape = [](lite::Layout& layout) {
+        std::vector<std::pair<mgb::json::String, std::shared_ptr<mgb::json::Value>>>
+                shape;
+        for (size_t i = 0; i < layout.ndim; ++i) {
+            std::string lable = "dim";
+            lable += std::to_string(layout.ndim - i - 1);
+            shape.push_back(
+                    {mgb::json::String(lable),
+                     mgb::json::NumberInt::make(layout.shapes[layout.ndim - i - 1])});
+        }
+        return shape;
+    };
+    auto input_name = m_network->get_all_input_name();
+    for (auto& i : input_name) {
+        std::vector<std::pair<mgb::json::String, std::shared_ptr<mgb::json::Value>>>
+                json_inp;
+        auto layout = m_network->get_io_tensor(i)->get_layout();
+        json_inp.push_back(
+                {mgb::json::String("shape"),
+                 mgb::json::Object::make(make_shape(layout))});
+        json_inp.push_back(
+                {mgb::json::String("dtype"),
+                 mgb::json::String::make(get_dtype(layout))});
+        json_inp.push_back({mgb::json::String("name"), mgb::json::String::make(i)});
+        inputs->add(mgb::json::Object::make(json_inp));
+    }
+
+    auto output_name = m_network->get_all_output_name();
+    for (auto& i : output_name) {
+        std::vector<std::pair<mgb::json::String, std::shared_ptr<mgb::json::Value>>>
+                json_out;
+        auto layout = m_network->get_io_tensor(i)->get_layout();
+        json_out.push_back(
+                {mgb::json::String("shape"),
+                 mgb::json::Object::make(make_shape(layout))});
+        json_out.push_back(
+                {mgb::json::String("dtype"),
+                 mgb::json::String::make(get_dtype(layout))});
+        json_out.push_back({mgb::json::String("name"), mgb::json::String::make(i)});
+        inputs->add(mgb::json::Object::make(json_out));
+    }
+
+    return mgb::json::Object::make(
+            {{"IO",
+              mgb::json::Object::make({{"outputs", outputs}, {"inputs", inputs}})}});
+}
+#endif
+
+std::vector<uint8_t> ModelLite::get_model_data() {
+    std::vector<uint8_t> out_data;
+    LITE_THROW("unsupported interface: ModelLite::get_model_data() \n");
+
+    return out_data;
+}
\ No newline at end of file
diff --git a/lite/load_and_run/src/models/model_lite.h b/lite/load_and_run/src/models/model_lite.h
index ed296a49..ba79ed28 100644
--- a/lite/load_and_run/src/models/model_lite.h
+++ b/lite/load_and_run/src/models/model_lite.h
@@ -1,12 +1,3 @@
-/**
- * \file lite/load_and_run/src/models/model_lite.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 <string>
@@ -39,6 +30,10 @@ public:
     //! wait the end of asynchronous function execution
     void wait() override;
 
+#if MGB_ENABLE_JSON
+    std::shared_ptr<mgb::json::Object> get_io_info() override;
+#endif
+
     //! enable global layout transform
     void set_layout_transform(bool state) { enable_layout_transform = state; }
 
@@ -62,6 +57,8 @@ public:
 
     const std::string& get_model_path() const override { return model_path; }
 
+    std::vector<uint8_t> get_model_data() override;
+
 private:
     bool share_model_mem;
     bool enable_layout_transform;
diff --git a/lite/load_and_run/src/models/model_mdl.cpp b/lite/load_and_run/src/models/model_mdl.cpp
index a328448b..818e7410 100644
--- a/lite/load_and_run/src/models/model_mdl.cpp
+++ b/lite/load_and_run/src/models/model_mdl.cpp
@@ -1,12 +1,3 @@
-/**
- * \file lite/load_and_run/src/models/model_mdl.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_mdl.h"
 #include <gflags/gflags.h>
 #include <iostream>
@@ -109,3 +100,76 @@ void ModelMdl::run_model() {
 void ModelMdl::wait() {
     m_asyc_exec->wait();
 }
+
+#if MGB_ENABLE_JSON
+std::shared_ptr<mgb::json::Object> ModelMdl::get_io_info() {
+    std::shared_ptr<mgb::json::Array> inputs = mgb::json::Array::make();
+    std::shared_ptr<mgb::json::Array> outputs = mgb::json::Array::make();
+    auto get_dtype = [&](megdnn::DType data_type) {
+        std::map<megdnn::DTypeEnum, std::string> type_map = {
+                {mgb::dtype::Float32().enumv(), "float32"},
+                {mgb::dtype::Int32().enumv(), "int32"},
+                {mgb::dtype::Int16().enumv(), "int16"},
+                {mgb::dtype::Uint16().enumv(), "uint16"},
+                {mgb::dtype::Int8().enumv(), "int8"},
+                {mgb::dtype::Uint8().enumv(), "uint8"}};
+        return type_map[data_type.enumv()];
+    };
+    auto make_shape = [](mgb::TensorShape& shape_) {
+        std::vector<std::pair<mgb::json::String, std::shared_ptr<mgb::json::Value>>>
+                shape;
+        for (size_t i = 0; i < shape_.ndim; ++i) {
+            std::string lable = "dim";
+            lable += std::to_string(shape_.ndim - i - 1);
+            shape.push_back(
+                    {mgb::json::String(lable),
+                     mgb::json::NumberInt::make(shape_[shape_.ndim - i - 1])});
+        }
+        return shape;
+    };
+    for (auto&& i : m_load_result.tensor_map) {
+        std::vector<std::pair<mgb::json::String, std::shared_ptr<mgb::json::Value>>>
+                json_inp;
+        auto shape_ = i.second->shape();
+        json_inp.push_back(
+                {mgb::json::String("shape"),
+                 mgb::json::Object::make(make_shape(shape_))});
+        json_inp.push_back(
+                {mgb::json::String("dtype"),
+                 mgb::json::String::make(get_dtype(i.second->dtype()))});
+        json_inp.push_back(
+                {mgb::json::String("name"), mgb::json::String::make(i.first)});
+        inputs->add(mgb::json::Object::make(json_inp));
+    }
+
+    for (auto&& i : m_load_result.output_var_list) {
+        std::vector<std::pair<mgb::json::String, std::shared_ptr<mgb::json::Value>>>
+                json_out;
+        auto shape_ = i.shape();
+        json_out.push_back(
+                {mgb::json::String("shape"),
+                 mgb::json::Object::make(make_shape(shape_))});
+        json_out.push_back(
+                {mgb::json::String("dtype"),
+                 mgb::json::String::make(get_dtype(i.dtype()))});
+
+        json_out.push_back(
+                {mgb::json::String("name"), mgb::json::String::make(i.node()->name())});
+        outputs->add(mgb::json::Object::make(json_out));
+    }
+    return mgb::json::Object::make(
+            {{"IO",
+              mgb::json::Object::make({{"outputs", outputs}, {"inputs", inputs}})}});
+}
+#endif
+
+std::vector<uint8_t> ModelMdl::get_model_data() {
+    std::vector<uint8_t> out_data;
+    auto out_file = mgb::serialization::OutputFile::make_vector_proxy(&out_data);
+    using DumpConfig = mgb::serialization::GraphDumper::DumpConfig;
+    DumpConfig config{1, false, false};
+    auto dumper =
+            mgb::serialization::GraphDumper::make(std::move(out_file), m_format.val());
+    dumper->dump(m_load_result.output_var_list, config);
+    return out_data;
+}
\ No newline at end of file
diff --git a/lite/load_and_run/src/models/model_mdl.h b/lite/load_and_run/src/models/model_mdl.h
index aab8deba..868984b1 100644
--- a/lite/load_and_run/src/models/model_mdl.h
+++ b/lite/load_and_run/src/models/model_mdl.h
@@ -1,12 +1,3 @@
-/**
- * \file lite/load_and_run/src/models/model_mdl.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 <string>
 #include "megbrain/opr/search_policy/algo_chooser_helper.h"
@@ -42,6 +33,10 @@ public:
 
     void wait() override;
 
+#if MGB_ENABLE_JSON
+    std::shared_ptr<mgb::json::Object> get_io_info() override;
+#endif
+
     //! get load result for megDL model
     mgb::serialization::GraphLoader::LoadResult& get_mdl_load_result() {
         return m_load_result;
@@ -109,6 +104,8 @@ public:
 
     const std::string& get_model_path() const override { return model_path; }
 
+    std::vector<uint8_t> get_model_data() override;
+
 private:
     bool share_model_mem;
     std::string model_path;
diff --git a/lite/load_and_run/src/options/device_options.cpp b/lite/load_and_run/src/options/device_options.cpp
index fcdb03af..10152fe2 100644
--- a/lite/load_and_run/src/options/device_options.cpp
+++ b/lite/load_and_run/src/options/device_options.cpp
@@ -1,12 +1,3 @@
-/**
- * \file lite/load_and_run/src/options/device_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 <iostream>
 #include <sstream>
 #include "lite/global.h"
@@ -76,7 +67,7 @@ void XPUDeviceOption::config_model_internel<ModelMdl>(
                 loc.type = mgb::CompNode::DeviceType::CPU;
             };
         }
-#if MGB_CUDA
+#if LITE_WITH_CUDA
         if (enable_cuda) {
             mgb_log_warn("using cuda device\n");
             model->get_mdl_config().comp_node_mapper = [](mgb::CompNode::Locator& loc) {
@@ -134,7 +125,7 @@ void XPUDeviceOption::config_model_internel<ModelMdl>(
 XPUDeviceOption::XPUDeviceOption() {
     m_option_name = "xpu_device";
     enable_cpu = FLAGS_cpu;
-#if MGB_CUDA
+#if LITE_WITH_CUDA
     enable_cuda = FLAGS_cuda;
 #endif
     enable_cpu_default = FLAGS_cpu_default;
@@ -165,18 +156,41 @@ XPUDeviceOption::XPUDeviceOption() {
                 "core ids number should be same with thread number set before");
         enable_set_core_ids = true;
     }
-}
 
+    m_option = {
+        {"cpu", lar::Bool::make(false)},
+#if LITE_WITH_CUDA
+        {"cuda", lar::Bool::make(false)},
+#endif
+        {"cpu_default", lar::Bool::make(false)},
+        {"multithread", lar::NumberInt32::make(-1)},
+        {"multithread_default", lar::NumberInt32::make(-1)},
+        {"multi_thread_core_ids", lar::String::make("")},
+    };
+    std::static_pointer_cast<lar::Bool>(m_option["cpu"])->set_value(FLAGS_cpu);
+#if LITE_WITH_CUDA
+    std::static_pointer_cast<lar::Bool>(m_option["cuda"])->set_value(FLAGS_cuda);
+#endif
+    std::static_pointer_cast<lar::Bool>(m_option["cpu_default"])
+            ->set_value(FLAGS_cpu_default);
+    std::static_pointer_cast<lar::NumberInt32>(m_option["multithread"])
+            ->set_value(FLAGS_multithread);
+    std::static_pointer_cast<lar::NumberInt32>(m_option["multithread_default"])
+            ->set_value(FLAGS_multithread_default);
+    std::static_pointer_cast<lar::String>(m_option["multi_thread_core_ids"])
+            ->set_value(FLAGS_multi_thread_core_ids);
+}
+bool XPUDeviceOption::m_valid;
 bool XPUDeviceOption::is_valid() {
     bool ret = FLAGS_cpu || FLAGS_cpu_default;
-#if MGB_CUDA
+#if LITE_WITH_CUDA
     ret = ret || FLAGS_cuda;
 #endif
     ret = ret || FLAGS_multithread >= 0;
     ret = ret || FLAGS_multithread_default >= 0;
     ret = ret || !FLAGS_multi_thread_core_ids.empty();
 
-    return ret;
+    return ret || m_valid;
 }
 
 std::shared_ptr<OptionBase> XPUDeviceOption::create_option() {
@@ -190,11 +204,46 @@ std::shared_ptr<OptionBase> XPUDeviceOption::create_option() {
 
 void XPUDeviceOption::config_model(
         RuntimeParam& runtime_param, std::shared_ptr<ModelBase> model) {
+    enable_cpu = std::static_pointer_cast<lar::Bool>(m_option["cpu"])->get_value();
+#if LITE_WITH_CUDA
+    enable_cuda = std::static_pointer_cast<lar::Bool>(m_option["cuda"])->get_value();
+#endif
+    enable_cpu_default =
+            std::static_pointer_cast<lar::Bool>(m_option["cpu_default"])->get_value();
+    int32_t num_of_thread =
+            std::static_pointer_cast<lar::NumberInt32>(m_option["multithread"])
+                    ->get_value();
+    enable_multithread = num_of_thread >= 0;
+    num_of_thread =
+            std::static_pointer_cast<lar::NumberInt32>(m_option["multithread_default"])
+                    ->get_value();
+    enable_multithread_default = num_of_thread >= 0;
+    thread_num = num_of_thread >= 0 ? num_of_thread : 0;
+    std::string core_id_str =
+            std::static_pointer_cast<lar::String>(m_option["multi_thread_core_ids"])
+                    ->get_value();
+    if (!core_id_str.empty()) {
+        mgb_assert(
+                enable_multithread || enable_multithread_default,
+                "core ids should be set after --multithread or --multithread-default");
+        std::stringstream id_stream(core_id_str);
+        std::string id;
+        size_t thread_cnt = 0;
+        while (getline(id_stream, id, ',')) {
+            thread_cnt++;
+            core_ids.push_back(atoi(id.c_str()));
+        }
+        mgb_assert(
+                thread_cnt == thread_num,
+                "core ids number should be same with thread number set before");
+        enable_set_core_ids = true;
+    }
+
     CONFIG_MODEL_FUN;
 }
 ///////////////////////// xpu gflags ////////////////////////////
 DEFINE_bool(cpu, false, "set CPU device as running device");
-#if MGB_CUDA || LITE_WITH_CUDA
+#if LITE_WITH_CUDA
 DEFINE_bool(cuda, false, "set CUDA device as running device ");
 #endif
 DEFINE_bool(cpu_default, false, "set running device as CPU device with inplace mode");
@@ -204,3 +253,4 @@ DEFINE_int32(
         "set multithread device as running device with inplace mode");
 DEFINE_string(multi_thread_core_ids, "", "set multithread core id");
 REGIST_OPTION_CREATOR(xpu_device, lar::XPUDeviceOption::create_option);
+REGIST_OPTION_VALIDATER(xpu_device, lar::XPUDeviceOption::set_valid);
diff --git a/lite/load_and_run/src/options/device_options.h b/lite/load_and_run/src/options/device_options.h
index 3f199f69..5d70e668 100644
--- a/lite/load_and_run/src/options/device_options.h
+++ b/lite/load_and_run/src/options/device_options.h
@@ -1,18 +1,10 @@
-/**
- * \file lite/load_and_run/src/options/device_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_bool(cpu);
-#if MGB_CUDA || LITE_WITH_CUDA
+#if LITE_WITH_CUDA
 DECLARE_bool(cuda);
 #endif
 DECLARE_bool(cpu_default);
@@ -29,12 +21,16 @@ public:
             RuntimeParam& runtime_param, std::shared_ptr<ModelBase> model) override;
     std::string option_name() const override { return m_option_name; };
 
+    static void set_valid(bool val) { m_valid = val; }
+
+    OptionValMap* get_option() override { return &m_option; }
+
 private:
     XPUDeviceOption();
     template <typename ModelImpl>
     void config_model_internel(RuntimeParam&, std::shared_ptr<ModelImpl>){};
     bool enable_cpu;
-#if MGB_CUDA || LITE_WITH_CUDA
+#if LITE_WITH_CUDA
     bool enable_cuda;
 #endif
     bool enable_cpu_default;
@@ -44,5 +40,8 @@ private:
     size_t thread_num;
     std::vector<int> core_ids;
     std::string m_option_name;
+
+    static bool m_valid;
+    OptionValMap m_option;
 };
 }  // namespace lar
diff --git a/lite/load_and_run/src/options/extern_c_opr_options.cpp b/lite/load_and_run/src/options/extern_c_opr_options.cpp
index 66915af4..26976539 100644
--- a/lite/load_and_run/src/options/extern_c_opr_options.cpp
+++ b/lite/load_and_run/src/options/extern_c_opr_options.cpp
@@ -1,12 +1,3 @@
-/**
- * \file lite/load_and_run/src/options/extern_c_opr_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 "extern_c_opr_options.h"
 #include "megbrain/utils/debug.h"
 #include "misc.h"
diff --git a/lite/load_and_run/src/options/extern_c_opr_options.h b/lite/load_and_run/src/options/extern_c_opr_options.h
index f55d91d6..4f26219d 100644
--- a/lite/load_and_run/src/options/extern_c_opr_options.h
+++ b/lite/load_and_run/src/options/extern_c_opr_options.h
@@ -1,12 +1,3 @@
-/**
- * \file lite/load_and_run/src/options/extern_c_opr_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 "megbrain/graph/extern_copr_api.h"
diff --git a/lite/load_and_run/src/options/fastrun_options.cpp b/lite/load_and_run/src/options/fastrun_options.cpp
index 7bcb728f..1cc80d78 100644
--- a/lite/load_and_run/src/options/fastrun_options.cpp
+++ b/lite/load_and_run/src/options/fastrun_options.cpp
@@ -1,12 +1,3 @@
-/**
- * \file lite/load_and_run/src/options/fastrun_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 <gflags/gflags.h>
 
 #if defined(_WIN32)
@@ -153,7 +144,7 @@ void FastRunOption::config_model_internel<ModelMdl>(
 }  // namespace lar
 
 using namespace lar;
-
+bool FastRunOption::m_valid;
 FastRunOption::FastRunOption() {
     m_option_name = "fastrun";
 #if MGB_ENABLE_FASTRUN
@@ -164,6 +155,25 @@ FastRunOption::FastRunOption() {
     enable_reproducible = FLAGS_reproducible;
     m_fast_run_cache = FLAGS_fast_run_algo_policy;
     share_batch_size = FLAGS_fast_run_shared_batch_size;
+    m_option = {
+#if MGB_ENABLE_FASTRUN
+        {"fast_run", lar::Bool::make(false)},
+        {"full_run", lar::Bool::make(false)},
+#endif
+        {"binary_equal_between_batch", lar::Bool::make(false)},
+        {"reproducible", lar::Bool::make(false)}
+    };
+#if MGB_ENABLE_FASTRUN
+    std::static_pointer_cast<lar::Bool>(m_option["fast_run"])
+            ->set_value(FLAGS_fast_run);
+    std::static_pointer_cast<lar::Bool>(m_option["full_run"])
+            ->set_value(FLAGS_full_run);
+#endif
+    std::static_pointer_cast<lar::Bool>(m_option["binary_equal_between_batch"])
+            ->set_value(FLAGS_binary_equal_between_batch);
+    std::static_pointer_cast<lar::Bool>(m_option["reproducible"])
+            ->set_value(FLAGS_reproducible);
+
 #if MGB_ENABLE_FASTRUN
     //! while fastrun cache file path is not empty and can't be accessed
     if (!m_fast_run_cache.empty() && access(m_fast_run_cache.c_str(), F_OK)) {
@@ -191,7 +201,7 @@ bool FastRunOption::is_valid() {
     ret = ret || FLAGS_reproducible;
     ret = ret || FLAGS_fast_run_algo_policy.size() > 0;
 
-    return ret;
+    return ret || m_valid;
 }
 
 std::shared_ptr<OptionBase> FastRunOption::create_option() {
@@ -205,6 +215,21 @@ std::shared_ptr<OptionBase> FastRunOption::create_option() {
 
 void FastRunOption::config_model(
         RuntimeParam& runtime_param, std::shared_ptr<ModelBase> model) {
+#if MGB_ENABLE_FASTRUN
+    enable_fast_run =
+            std::static_pointer_cast<lar::Bool>(m_option["fast_run"])->get_value();
+    enable_full_run =
+            std::static_pointer_cast<lar::Bool>(m_option["full_run"])->get_value();
+    mgb_throw_if(
+            enable_fast_run && enable_full_run, mgb::AssertionError,
+            "invalid options of both fast-run and full-run");
+#endif
+    batch_binary_equal =
+            std::static_pointer_cast<lar::Bool>(m_option["binary_equal_between_batch"])
+                    ->get_value();
+    enable_reproducible =
+            std::static_pointer_cast<lar::Bool>(m_option["reproducible"])->get_value();
+
     CONFIG_MODEL_FUN;
 }
 
@@ -228,4 +253,5 @@ DEFINE_bool(
 DEFINE_uint32(fast_run_shared_batch_size, 0, "Set the batch size used during fastrun");
 DEFINE_string(fast_run_algo_policy, "", "fast-run cache path.");
 
-REGIST_OPTION_CREATOR(fastrun, lar::FastRunOption::create_option);
\ No newline at end of file
+REGIST_OPTION_CREATOR(fastrun, lar::FastRunOption::create_option);
+REGIST_OPTION_VALIDATER(fastrun, lar::FastRunOption::set_valid);
\ No newline at end of file
diff --git a/lite/load_and_run/src/options/fastrun_options.h b/lite/load_and_run/src/options/fastrun_options.h
index 62b89776..903f244a 100644
--- a/lite/load_and_run/src/options/fastrun_options.h
+++ b/lite/load_and_run/src/options/fastrun_options.h
@@ -1,12 +1,3 @@
-/**
- * \file lite/load_and_run/src/options/fastrun_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>
@@ -38,6 +29,10 @@ public:
     //! get options name for quickly search
     std::string option_name() const override { return m_option_name; }
 
+    static void set_valid(bool val) { m_valid = val; }
+
+    OptionValMap* get_option() override { return &m_option; }
+
 private:
     FastRunOption();
     //! config template for different model
@@ -53,5 +48,8 @@ private:
     size_t share_batch_size;       //! fast run strategy share batch size setting
     std::string m_fast_run_cache;  //! fast run cache file path
     std::string m_option_name;     //! option name
+
+    static bool m_valid;
+    OptionValMap m_option;
 };
 }  // namespace lar
diff --git a/lite/load_and_run/src/options/io_options.cpp b/lite/load_and_run/src/options/io_options.cpp
index 855f9138..786e4c2e 100644
--- a/lite/load_and_run/src/options/io_options.cpp
+++ b/lite/load_and_run/src/options/io_options.cpp
@@ -1,12 +1,3 @@
-/**
- * \file lite/load_and_run/src/options/io_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 <map>
 
 #include "helpers/data_parser.h"
diff --git a/lite/load_and_run/src/options/io_options.h b/lite/load_and_run/src/options/io_options.h
index 1f4c9c8d..aef66b7f 100644
--- a/lite/load_and_run/src/options/io_options.h
+++ b/lite/load_and_run/src/options/io_options.h
@@ -1,12 +1,3 @@
-/**
- * \file lite/load_and_run/src/options/io_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 "helpers/outdumper.h"
diff --git a/lite/load_and_run/src/options/layout_options.cpp b/lite/load_and_run/src/options/layout_options.cpp
index 51977139..37d1c21e 100644
--- a/lite/load_and_run/src/options/layout_options.cpp
+++ b/lite/load_and_run/src/options/layout_options.cpp
@@ -1,12 +1,3 @@
-/**
- * \file lite/load_and_run/src/options/layout_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 <gflags/gflags.h>
 
 #include "misc.h"
@@ -24,7 +15,7 @@ void LayoutOption::config_model_internel<ModelLite>(
     model->get_config().options.enable_##layout = true; \
     break;
 
-        switch (option_flag) {
+        switch (m_option_flag) {
             case OptLayoutType::NCHW4:
                 ENABLE_LAYOUT(nchw4)
 
@@ -59,13 +50,12 @@ template <>
 void lar::LayoutOption::config_model_internel<ModelMdl>(
         RuntimeParam& runtime_param, std::shared_ptr<ModelMdl> model) {
     if (runtime_param.stage == RunStage::BEFORE_MODEL_LOAD) {
-        mgb_log_debug("mdl  layout config start");
 #define ENABLE_LAYOUT(layout)                                                  \
     mgb_log_warn("enable " #layout " optimization");                           \
     model->get_mdl_config().comp_graph->options().graph_opt.enable_##layout(); \
     break;
 
-        switch (option_flag) {
+        switch (m_option_flag) {
             case OptLayoutType::NCHW4:
                 ENABLE_LAYOUT(nchw4)
 
@@ -93,7 +83,6 @@ void lar::LayoutOption::config_model_internel<ModelMdl>(
             default:
                 break;
         }
-        mgb_log_debug("mdl layout config end");
 
 #undef ENABLE_LAYOUT
     }
@@ -101,48 +90,68 @@ void lar::LayoutOption::config_model_internel<ModelMdl>(
 }  // namespace lar
 
 using namespace lar;
-
-OptLayoutType LayoutOption::option_flag;
-
+bool LayoutOption::m_valid;
 LayoutOption::LayoutOption() {
     m_option_name = "layout";
+    m_option_flag = static_cast<OptLayoutType>(0);
+    m_option = {
+            {"enable_nchw4", lar::Bool::make(false)},
+            {"enable_chwn4", lar::Bool::make(false)},
+            {"enable_nchw44", lar::Bool::make(false)},
+            {"enable_nchw88", lar::Bool::make(false)},
+            {"enable_nchw32", lar::Bool::make(false)},
+            {"enable_nchw64", lar::Bool::make(false)},
+            {"enable_nhwcd4", lar::Bool::make(false)},
+            {"enable_nchw44_dot", lar::Bool::make(false)},
+    };
+    std::static_pointer_cast<lar::Bool>(m_option["enable_nchw4"])
+            ->set_value(FLAGS_enable_nchw4);
+    std::static_pointer_cast<lar::Bool>(m_option["enable_chwn4"])
+            ->set_value(FLAGS_enable_chwn4);
+    std::static_pointer_cast<lar::Bool>(m_option["enable_nchw44"])
+            ->set_value(FLAGS_enable_nchw44);
+    std::static_pointer_cast<lar::Bool>(m_option["enable_nchw88"])
+            ->set_value(FLAGS_enable_nchw88);
+    std::static_pointer_cast<lar::Bool>(m_option["enable_nchw32"])
+            ->set_value(FLAGS_enable_nchw32);
+    std::static_pointer_cast<lar::Bool>(m_option["enable_nchw64"])
+            ->set_value(FLAGS_enable_nchw64);
+    std::static_pointer_cast<lar::Bool>(m_option["enable_nhwcd4"])
+            ->set_value(FLAGS_enable_nhwcd4);
+    std::static_pointer_cast<lar::Bool>(m_option["enable_nchw44_dot"])
+            ->set_value(FLAGS_enable_nchw44_dot);
 }
 
 bool LayoutOption::is_valid() {
     size_t valid_flag = 0;
     if (FLAGS_enable_nchw4) {
-        valid_flag = valid_flag | (1 << 0);
+        valid_flag |= static_cast<size_t>(OptLayoutType::NCHW4);
     }
     if (FLAGS_enable_chwn4) {
-        valid_flag = valid_flag | (1 << 1);
+        valid_flag |= static_cast<size_t>(OptLayoutType::CHWN4);
     }
     if (FLAGS_enable_nchw44) {
-        valid_flag = valid_flag | (1 << 2);
+        valid_flag |= static_cast<size_t>(OptLayoutType::NCHW44);
     }
     if (FLAGS_enable_nchw88) {
-        valid_flag = valid_flag | (1 << 3);
+        valid_flag |= static_cast<size_t>(OptLayoutType::NCHW88);
     }
     if (FLAGS_enable_nchw32) {
-        valid_flag = valid_flag | (1 << 4);
+        valid_flag |= static_cast<size_t>(OptLayoutType::NCHW32);
     }
     if (FLAGS_enable_nchw64) {
-        valid_flag = valid_flag | (1 << 5);
+        valid_flag |= static_cast<size_t>(OptLayoutType::NCHW64);
     }
     if (FLAGS_enable_nhwcd4) {
-        valid_flag = valid_flag | (1 << 6);
+        valid_flag |= static_cast<size_t>(OptLayoutType::NHWCD4);
     }
     if (FLAGS_enable_nchw44_dot) {
-        valid_flag = valid_flag | (1 << 7);
+        valid_flag |= static_cast<size_t>(OptLayoutType::NCHW44_DOT);
     }
-
+    //! only one flag is valid
     bool ret = valid_flag && !(valid_flag & (valid_flag - 1));
-    if (ret) {
-        option_flag = static_cast<OptLayoutType>(valid_flag);
-    } else {
-        option_flag = static_cast<OptLayoutType>(0);
-    }
 
-    return ret;
+    return ret | m_valid;
 };
 
 std::shared_ptr<OptionBase> LayoutOption::create_option() {
@@ -156,6 +165,37 @@ std::shared_ptr<OptionBase> LayoutOption::create_option() {
 
 void LayoutOption::config_model(
         RuntimeParam& runtime_param, std::shared_ptr<ModelBase> model) {
+    size_t valid_flag = 0;
+    if (std::static_pointer_cast<lar::Bool>(m_option["enable_nchw4"])->get_value()) {
+        valid_flag |= static_cast<size_t>(OptLayoutType::NCHW4);
+    }
+    if (std::static_pointer_cast<lar::Bool>(m_option["enable_chwn4"])->get_value()) {
+        valid_flag |= static_cast<size_t>(OptLayoutType::CHWN4);
+    }
+    if (std::static_pointer_cast<lar::Bool>(m_option["enable_nchw44"])->get_value()) {
+        valid_flag |= static_cast<size_t>(OptLayoutType::NCHW44);
+    }
+    if (std::static_pointer_cast<lar::Bool>(m_option["enable_nchw88"])->get_value()) {
+        valid_flag |= static_cast<size_t>(OptLayoutType::NCHW88);
+    }
+    if (std::static_pointer_cast<lar::Bool>(m_option["enable_nchw32"])->get_value()) {
+        valid_flag |= static_cast<size_t>(OptLayoutType::NCHW32);
+    }
+    if (std::static_pointer_cast<lar::Bool>(m_option["enable_nchw64"])->get_value()) {
+        valid_flag |= static_cast<size_t>(OptLayoutType::NCHW64);
+    }
+    if (std::static_pointer_cast<lar::Bool>(m_option["enable_nhwcd4"])->get_value()) {
+        valid_flag |= static_cast<size_t>(OptLayoutType::NHWCD4);
+    }
+    if (std::static_pointer_cast<lar::Bool>(m_option["enable_nchw44_dot"])
+                ->get_value()) {
+        valid_flag |= static_cast<size_t>(OptLayoutType::NCHW44_DOT);
+    }
+
+    mgb_throw_if(
+            valid_flag && (valid_flag & (valid_flag - 1)), mgb::AssertionError,
+            "invalid options of layout transform 0x%lx", valid_flag);
+    m_option_flag = static_cast<OptLayoutType>(valid_flag);
     CONFIG_MODEL_FUN;
 }
 
@@ -168,4 +208,5 @@ DEFINE_bool(enable_nchw64, false, "enable nchw64 layout optimization!!");
 DEFINE_bool(enable_nhwcd4, false, "enable nhwcd4 layout optimization!!");
 DEFINE_bool(enable_nchw44_dot, false, "enable nchw444-dot layout optimization!!");
 
-REGIST_OPTION_CREATOR(layout, lar::LayoutOption::create_option);
\ No newline at end of file
+REGIST_OPTION_CREATOR(layout, lar::LayoutOption::create_option);
+REGIST_OPTION_VALIDATER(layout, lar::LayoutOption::set_valid);
\ No newline at end of file
diff --git a/lite/load_and_run/src/options/layout_options.h b/lite/load_and_run/src/options/layout_options.h
index fcf6a177..2d2447af 100644
--- a/lite/load_and_run/src/options/layout_options.h
+++ b/lite/load_and_run/src/options/layout_options.h
@@ -1,12 +1,3 @@
-/**
- * \file lite/load_and_run/src/options/layout_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>
@@ -42,6 +33,10 @@ public:
     //! get option name
     std::string option_name() const override { return m_option_name; };
 
+    static void set_valid(bool val) { m_valid = val; }
+
+    OptionValMap* get_option() override { return &m_option; }
+
 private:
     //! Constructor
     LayoutOption();
@@ -50,7 +45,9 @@ private:
     template <typename ModelImpl>
     void config_model_internel(RuntimeParam&, std::shared_ptr<ModelImpl>){};
 
-    static OptLayoutType option_flag;
+    OptLayoutType m_option_flag;
     std::string m_option_name;
+    static bool m_valid;
+    OptionValMap m_option;
 };
 }  // namespace lar
\ No newline at end of file
diff --git a/lite/load_and_run/src/options/layout_trans_options.cpp b/lite/load_and_run/src/options/layout_trans_options.cpp
index 22abb0b2..ab9f17f2 100644
--- a/lite/load_and_run/src/options/layout_trans_options.cpp
+++ b/lite/load_and_run/src/options/layout_trans_options.cpp
@@ -1,11 +1,3 @@
-/**
- * \file lite/load_and_run/src/options/layout_trans_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.
- */
 #include "layout_trans_options.h"
 #include <gflags/gflags.h>
 #include "megbrain/serialization/serializer.h"
@@ -19,6 +11,7 @@ void GoptLayoutOption::config_model_internel<ModelLite>(
         RuntimeParam& runtime_param, std::shared_ptr<ModelLite> model) {
     if (runtime_param.stage == RunStage::BEFORE_MODEL_LOAD) {
         if (m_layout_transform) {
+            LITE_WARN("using global layout transform optimization\n");
             if (m_layout_transform_target ==
                 mgb::gopt::GraphTuningOptions::Target::CPU) {
                 model->get_config().device_type = LiteDeviceType::LITE_CPU;
@@ -48,7 +41,47 @@ void GoptLayoutOption::config_model_internel<ModelMdl>(
         RuntimeParam& runtime_param, std::shared_ptr<ModelMdl> model) {
     if (runtime_param.stage == RunStage::GLOBAL_OPTIMIZATION) {
         if (m_layout_transform) {
+            mgb_log_warn("using global layout transform optimization\n");
             auto&& load_result = model->get_mdl_load_result();
+            for (auto&& item : load_result.output_var_list) {
+                if (item.shape()[0] > 1) {
+                    mgb_log_warn(
+                            " model may be dumped with multi batch and will cost lots "
+                            "of time to profile during global layout transform!!!\n");
+                }
+            }
+            //! update output varlist when input shape maybe change(some pass excution
+            //! time depends on the shape of init input)
+            mgb::thin_hash_table::ThinHashMap<mgb::cg::SymbolVar, mgb::cg::SymbolVar>
+                    varmap;
+            mgb::cg::DepOprIter dep([&](mgb::cg::OperatorNodeBase* opr) {
+                if (auto h2d = opr->try_cast_final<mgb::opr::Host2DeviceCopy>()) {
+                    auto param = h2d->param();
+                    mgb::TensorShape new_shape = h2d->host_data()->shape();
+                    std::shared_ptr<mgb::HostTensorND> new_tensor =
+                            std::make_shared<mgb::HostTensorND>(
+                                    h2d->host_data()->comp_node(), new_shape,
+                                    h2d->host_data()->dtype());
+                    new_tensor->only_reset_raw_storage(h2d->host_data()->storage());
+                    auto h2d_opr = mgb::opr::Host2DeviceCopy::make(
+                            *h2d->owner_graph(), new_tensor, param, h2d->config());
+                    varmap[h2d->output(0)] = h2d_opr;
+                }
+            });
+
+            for (auto&& i : load_result.output_var_list)
+                dep.add(i);
+
+            if (!varmap.empty()) {
+                auto output_vars =
+                        mgb::cg::replace_vars(load_result.output_var_list, varmap);
+                for (size_t i = 0; i < load_result.output_var_list.size(); ++i) {
+                    output_vars[i].rename(
+                            load_result.output_var_list[i].node()->name());
+                }
+                load_result.output_var_list = output_vars;
+            }
+
             load_result.output_var_list = mgb::gopt::layout_transform(
                     load_result.output_var_list, m_layout_transform_target);
 
@@ -98,7 +131,7 @@ void GoptLayoutOption::config_model_internel<ModelMdl>(
 }  // namespace lar
 
 using namespace lar;
-
+bool GoptLayoutOption::m_valid;
 GoptLayoutOption::GoptLayoutOption() {
     m_option_name = "gopt_layout";
     if (FLAGS_layout_transform != "cpu"
@@ -122,6 +155,12 @@ GoptLayoutOption::GoptLayoutOption() {
 #endif
     }
     m_layout_transform_dump_file = FLAGS_layout_transform_dump;
+
+    m_option = {
+            {"layout_transform", lar::String::make("")},
+    };
+    std::static_pointer_cast<lar::String>(m_option["layout_transform"])
+            ->set_value(FLAGS_layout_transform);
 }
 
 bool GoptLayoutOption::is_valid() {
@@ -143,7 +182,7 @@ bool GoptLayoutOption::is_valid() {
         }
     }
     ret = ret || !FLAGS_layout_transform_dump.empty();
-    return ret;
+    return ret || m_valid;
 }
 
 std::shared_ptr<OptionBase> GoptLayoutOption::create_option() {
@@ -157,6 +196,26 @@ std::shared_ptr<OptionBase> GoptLayoutOption::create_option() {
 
 void GoptLayoutOption::config_model(
         RuntimeParam& runtime_param, std::shared_ptr<ModelBase> model) {
+    auto value = std::static_pointer_cast<lar::String>(m_option["layout_transform"])
+                         ->get_value();
+    if (value.empty()) {
+        return;
+    }
+    if (value == "cpu") {
+        m_layout_transform = true;
+        m_layout_transform_target = mgb::gopt::GraphTuningOptions::Target::CPU;
+    }
+#if LITE_WITH_CUDA
+    else if (value == "cuda") {
+        m_layout_transform = true;
+        m_layout_transform_target = mgb::gopt::GraphTuningOptions::Target::CUDA;
+    }
+#endif
+    else {
+        mgb_throw(
+                mgb::AssertionError, "invalid options of global layout transform %s",
+                value.c_str());
+    }
     CONFIG_MODEL_FUN;
 }
 
@@ -175,3 +234,4 @@ DEFINE_string(
         "file path.");
 
 REGIST_OPTION_CREATOR(gopt_layout, lar::GoptLayoutOption::create_option);
+REGIST_OPTION_VALIDATER(gopt_layout, lar::GoptLayoutOption::set_valid);
\ No newline at end of file
diff --git a/lite/load_and_run/src/options/layout_trans_options.h b/lite/load_and_run/src/options/layout_trans_options.h
index ad233a04..05f80e87 100644
--- a/lite/load_and_run/src/options/layout_trans_options.h
+++ b/lite/load_and_run/src/options/layout_trans_options.h
@@ -1,12 +1,3 @@
-/**
- * \file lite/load_and_run/src/options/layout_trans_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>
@@ -32,6 +23,10 @@ public:
     //! get options name for quickly search
     std::string option_name() const override { return m_option_name; }
 
+    static void set_valid(bool val) { m_valid = val; }
+
+    OptionValMap* get_option() override { return &m_option; }
+
 private:
     GoptLayoutOption();
     //! config template for different model
@@ -41,5 +36,7 @@ private:
     std::string m_option_name;
     std::string m_layout_transform_dump_file;
     mgb::gopt::GraphTuningOptions::Target m_layout_transform_target;
+    static bool m_valid;
+    OptionValMap m_option;
 };
 }  // namespace lar
diff --git a/lite/load_and_run/src/options/model_options.cpp b/lite/load_and_run/src/options/model_options.cpp
index 38fb332f..e1bf1528 100644
--- a/lite/load_and_run/src/options/model_options.cpp
+++ b/lite/load_and_run/src/options/model_options.cpp
@@ -1,12 +1,3 @@
-/**
- * \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"
diff --git a/lite/load_and_run/src/options/model_options.h b/lite/load_and_run/src/options/model_options.h
index 020f3966..44cf19b8 100644
--- a/lite/load_and_run/src/options/model_options.h
+++ b/lite/load_and_run/src/options/model_options.h
@@ -1,12 +1,3 @@
-/**
- * \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 "megbrain/graph/operator_node.h"
diff --git a/lite/load_and_run/src/options/optimize_options.cpp b/lite/load_and_run/src/options/optimize_options.cpp
index ce2f2a92..583d5bf8 100644
--- a/lite/load_and_run/src/options/optimize_options.cpp
+++ b/lite/load_and_run/src/options/optimize_options.cpp
@@ -1,12 +1,3 @@
-/**
- * \file lite/load_and_run/src/options/optimize_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 "megbrain/gopt/inference.h"
 #if MGB_ENABLE_TENSOR_RT
 #include "megbrain/tensorrt/tensorrt_engine_cache.h"
@@ -43,15 +34,18 @@ void FusePreprocessOption::config_model_internel<ModelMdl>(
 }
 }  // namespace lar
 using namespace lar;
-
+bool FusePreprocessOption::m_valid;
 FusePreprocessOption::FusePreprocessOption() {
     m_option_name = "fuse_preprocess";
     enable_fuse_preprocess = FLAGS_enable_fuse_preprocess;
+    m_option = {{"enable_fuse_preprocess", lar::Bool::make(false)}};
+    std::static_pointer_cast<lar::Bool>(m_option["enable_fuse_preprocess"])
+            ->set_value(FLAGS_enable_fuse_preprocess);
 }
 
 bool FusePreprocessOption::is_valid() {
     bool ret = FLAGS_enable_fuse_preprocess;
-    return ret;
+    return ret || m_valid;
 }
 
 std::shared_ptr<OptionBase> FusePreprocessOption::create_option() {
@@ -65,10 +59,14 @@ std::shared_ptr<OptionBase> FusePreprocessOption::create_option() {
 
 void FusePreprocessOption::config_model(
         RuntimeParam& runtime_param, std::shared_ptr<ModelBase> model) {
+    enable_fuse_preprocess =
+            std::static_pointer_cast<lar::Bool>(m_option["enable_fuse_preprocess"])
+                    ->get_value();
     CONFIG_MODEL_FUN;
 }
 
 ///////////////////////// weight preprocess optimize options ///////////////
+bool WeightPreprocessOption::m_valid;
 namespace lar {
 template <>
 void WeightPreprocessOption::config_model_internel<ModelLite>(
@@ -97,11 +95,14 @@ void WeightPreprocessOption::config_model_internel<ModelMdl>(
 WeightPreprocessOption::WeightPreprocessOption() {
     m_option_name = "weight_preprocess";
     weight_preprocess = FLAGS_weight_preprocess;
+    m_option = {{"weight_preprocess", lar::Bool::make(false)}};
+    std::static_pointer_cast<lar::Bool>(m_option["weight_preprocess"])
+            ->set_value(FLAGS_weight_preprocess);
 }
 
 bool WeightPreprocessOption::is_valid() {
     bool ret = FLAGS_weight_preprocess;
-    return ret;
+    return ret || m_valid;
 }
 
 std::shared_ptr<OptionBase> WeightPreprocessOption::create_option() {
@@ -115,10 +116,14 @@ std::shared_ptr<OptionBase> WeightPreprocessOption::create_option() {
 
 void WeightPreprocessOption::config_model(
         RuntimeParam& runtime_param, std::shared_ptr<ModelBase> model) {
+    weight_preprocess =
+            std::static_pointer_cast<lar::Bool>(m_option["weight_preprocess"])
+                    ->get_value();
     CONFIG_MODEL_FUN;
 }
 
 ///// fuse conv bias and nonlinear activation opr optimize options ////////
+bool FuseConvBiasNonlinearOption::m_valid;
 namespace lar {
 template <>
 void FuseConvBiasNonlinearOption::config_model_internel<ModelLite>(
@@ -145,13 +150,16 @@ void FuseConvBiasNonlinearOption::config_model_internel<ModelMdl>(
 }  // namespace lar
 
 FuseConvBiasNonlinearOption::FuseConvBiasNonlinearOption() {
-    m_option_name = "fuse_conv_bias_nonlinear";
+    m_option_name = "fuse_conv_bias_nonlinearity";
     enable_fuse_conv_bias_nonlinearity = FLAGS_enable_fuse_conv_bias_nonlinearity;
+    m_option = {{"enable_fuse_conv_bias_nonlinearity", lar::Bool::make(false)}};
+    std::static_pointer_cast<lar::Bool>(m_option["enable_fuse_conv_bias_nonlinearity"])
+            ->set_value(FLAGS_enable_fuse_conv_bias_nonlinearity);
 }
 
 bool FuseConvBiasNonlinearOption::is_valid() {
     bool ret = FLAGS_enable_fuse_conv_bias_nonlinearity;
-    return ret;
+    return ret || m_valid;
 }
 
 std::shared_ptr<OptionBase> FuseConvBiasNonlinearOption::create_option() {
@@ -166,10 +174,15 @@ std::shared_ptr<OptionBase> FuseConvBiasNonlinearOption::create_option() {
 
 void FuseConvBiasNonlinearOption::config_model(
         RuntimeParam& runtime_param, std::shared_ptr<ModelBase> model) {
+    enable_fuse_conv_bias_nonlinearity =
+            std::static_pointer_cast<lar::Bool>(
+                    m_option["enable_fuse_conv_bias_nonlinearity"])
+                    ->get_value();
     CONFIG_MODEL_FUN;
 }
 
 ///////////////////////// fuse and preprocess optimize options ///////////////
+bool FuseConvBiasElemwiseAddOption::m_valid;
 namespace lar {
 template <>
 void FuseConvBiasElemwiseAddOption::config_model_internel<ModelLite>(
@@ -198,13 +211,16 @@ void FuseConvBiasElemwiseAddOption::config_model_internel<ModelMdl>(
 }  // namespace lar
 
 FuseConvBiasElemwiseAddOption::FuseConvBiasElemwiseAddOption() {
-    m_option_name = "fuse_conv_bias_z";
+    m_option_name = "fuse_conv_bias_with_z";
     enable_fuse_conv_bias_with_z = FLAGS_enable_fuse_conv_bias_with_z;
+    m_option = {{"enable_fuse_conv_bias_with_z", lar::Bool::make(false)}};
+    std::static_pointer_cast<lar::Bool>(m_option["enable_fuse_conv_bias_with_z"])
+            ->set_value(FLAGS_enable_fuse_conv_bias_with_z);
 }
 
 bool FuseConvBiasElemwiseAddOption::is_valid() {
     bool ret = FLAGS_enable_fuse_conv_bias_with_z;
-    return ret;
+    return ret || m_valid;
 }
 
 std::shared_ptr<OptionBase> FuseConvBiasElemwiseAddOption::create_option() {
@@ -219,10 +235,14 @@ std::shared_ptr<OptionBase> FuseConvBiasElemwiseAddOption::create_option() {
 
 void FuseConvBiasElemwiseAddOption::config_model(
         RuntimeParam& runtime_param, std::shared_ptr<ModelBase> model) {
+    enable_fuse_conv_bias_with_z = std::static_pointer_cast<lar::Bool>(
+                                           m_option["enable_fuse_conv_bias_with_z"])
+                                           ->get_value();
     CONFIG_MODEL_FUN;
 }
 
 ///////////////////////// graph retrict options /////////////////////////
+bool GraphRecordOption::m_valid;
 namespace lar {
 template <>
 void GraphRecordOption::config_model_internel<ModelLite>(
@@ -299,6 +319,23 @@ GraphRecordOption::GraphRecordOption() {
     if (FLAGS_record_comp_seq2) {
         m_record_comp_seq = 2;
     }
+
+    m_option = {
+            {"record_comp_seq", lar::Bool::make(false)},
+            {"record_comp_seq2", lar::Bool::make(false)},
+            {"const_shape", lar::Bool::make(false)},
+            {"fake_first", lar::Bool::make(false)},
+            {"no_sanity_check", lar::Bool::make(false)}};
+    std::static_pointer_cast<lar::Bool>(m_option["const_shape"])
+            ->set_value(FLAGS_const_shape);
+    std::static_pointer_cast<lar::Bool>(m_option["fake_first"])
+            ->set_value(FLAGS_fake_first);
+    std::static_pointer_cast<lar::Bool>(m_option["no_sanity_check"])
+            ->set_value(FLAGS_no_sanity_check);
+    std::static_pointer_cast<lar::Bool>(m_option["record_comp_seq"])
+            ->set_value(FLAGS_record_comp_seq);
+    std::static_pointer_cast<lar::Bool>(m_option["record_comp_seq2"])
+            ->set_value(FLAGS_record_comp_seq2);
 }
 
 bool GraphRecordOption::is_valid() {
@@ -307,7 +344,7 @@ bool GraphRecordOption::is_valid() {
     ret = ret || FLAGS_no_sanity_check;
     ret = ret || FLAGS_record_comp_seq;
     ret = ret || FLAGS_record_comp_seq2;
-    return ret;
+    return ret || m_valid;
 }
 
 std::shared_ptr<OptionBase> GraphRecordOption::create_option() {
@@ -321,6 +358,22 @@ std::shared_ptr<OptionBase> GraphRecordOption::create_option() {
 
 void GraphRecordOption::config_model(
         RuntimeParam& runtime_param, std::shared_ptr<ModelBase> model) {
+    const_shape =
+            std::static_pointer_cast<lar::Bool>(m_option["const_shape"])->get_value();
+    fake_first =
+            std::static_pointer_cast<lar::Bool>(m_option["fake_first"])->get_value();
+    no_sanity_check = std::static_pointer_cast<lar::Bool>(m_option["no_sanity_check"])
+                              ->get_value();
+    m_record_comp_seq = std::static_pointer_cast<lar::Bool>(m_option["record_comp_seq"])
+                                        ->get_value()
+                              ? 1
+                              : 0;
+    m_record_comp_seq =
+            std::static_pointer_cast<lar::Bool>(m_option["record_comp_seq2"])
+                            ->get_value()
+                    ? 2
+                    : 0;
+
     CONFIG_MODEL_FUN;
 }
 ///////////////////////// graph retrict options /////////////////////////
@@ -569,13 +622,26 @@ DEFINE_string(
         "Set the TensorRT engine cache path for serialized prebuilt "
         "ICudaEngine");
 #endif
+
 REGIST_OPTION_CREATOR(fuse_preprocess, lar::FusePreprocessOption::create_option);
+REGIST_OPTION_VALIDATER(fuse_preprocess, lar::FusePreprocessOption::set_valid);
+
 REGIST_OPTION_CREATOR(weight_preprocess, lar::WeightPreprocessOption::create_option);
+REGIST_OPTION_VALIDATER(weight_preprocess, lar::WeightPreprocessOption::set_valid);
+
 REGIST_OPTION_CREATOR(
-        fuse_conv_bias_nonlinear, lar::FuseConvBiasNonlinearOption::create_option);
+        fuse_conv_bias_nonlinearity, lar::FuseConvBiasNonlinearOption::create_option);
+REGIST_OPTION_VALIDATER(
+        fuse_conv_bias_nonlinearity, lar::FuseConvBiasNonlinearOption::set_valid);
+
 REGIST_OPTION_CREATOR(
-        fuse_conv_bias_z, lar::FuseConvBiasElemwiseAddOption::create_option);
+        fuse_conv_bias_with_z, lar::FuseConvBiasElemwiseAddOption::create_option);
+REGIST_OPTION_VALIDATER(
+        fuse_conv_bias_with_z, lar::FuseConvBiasElemwiseAddOption::set_valid);
+
 REGIST_OPTION_CREATOR(graph_record, lar::GraphRecordOption::create_option);
+REGIST_OPTION_VALIDATER(graph_record, lar::GraphRecordOption::set_valid);
+
 REGIST_OPTION_CREATOR(memory_optimize, lar::MemoryOptimizeOption::create_option);
 REGIST_OPTION_CREATOR(JIT, lar::JITOption::create_option);
 #if MGB_ENABLE_TENSOR_RT
diff --git a/lite/load_and_run/src/options/optimize_options.h b/lite/load_and_run/src/options/optimize_options.h
index f35574c5..5ec42e6d 100644
--- a/lite/load_and_run/src/options/optimize_options.h
+++ b/lite/load_and_run/src/options/optimize_options.h
@@ -1,12 +1,3 @@
-/**
- * \file lite/load_and_run/src/options/optimize_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 "helpers/common.h"
@@ -44,6 +35,10 @@ public:
 
     std::string option_name() const override { return m_option_name; };
 
+    static void set_valid(bool val) { m_valid = val; }
+
+    OptionValMap* get_option() override { return &m_option; }
+
 private:
     FusePreprocessOption();
     template <typename ModelImpl>
@@ -51,6 +46,8 @@ private:
 
     std::string m_option_name;
     bool enable_fuse_preprocess;
+    static bool m_valid;
+    OptionValMap m_option;
 };
 
 ///////////////////////// weight preprocess optimize options //////////////
@@ -64,6 +61,9 @@ public:
             RuntimeParam& runtime_param, std::shared_ptr<ModelBase> model) override;
 
     std::string option_name() const override { return m_option_name; };
+    static void set_valid(bool val) { m_valid = val; };
+
+    OptionValMap* get_option() override { return &m_option; }
 
 private:
     WeightPreprocessOption();
@@ -72,6 +72,8 @@ private:
 
     std::string m_option_name;
     bool weight_preprocess;
+    static bool m_valid;
+    OptionValMap m_option;
 };
 
 /////////////// fuse_conv_bias_nonlinearity optimize options ///////////////
@@ -85,6 +87,9 @@ public:
             RuntimeParam& runtime_param, std::shared_ptr<ModelBase> model) override;
 
     std::string option_name() const override { return m_option_name; };
+    static void set_valid(bool val) { m_valid = val; }
+
+    OptionValMap* get_option() override { return &m_option; }
 
 private:
     FuseConvBiasNonlinearOption();
@@ -93,6 +98,8 @@ private:
 
     std::string m_option_name;
     bool enable_fuse_conv_bias_nonlinearity;
+    static bool m_valid;
+    OptionValMap m_option;
 };
 
 ///////////////////////// fuse_conv_bias_with_z optimize options //////////////
@@ -106,6 +113,9 @@ public:
             RuntimeParam& runtime_param, std::shared_ptr<ModelBase> model) override;
 
     std::string option_name() const override { return m_option_name; };
+    static void set_valid(bool val) { m_valid = val; }
+
+    OptionValMap* get_option() override { return &m_option; }
 
 private:
     FuseConvBiasElemwiseAddOption();
@@ -113,6 +123,8 @@ private:
     void config_model_internel(RuntimeParam&, std::shared_ptr<ModelImpl>){};
     std::string m_option_name;
     bool enable_fuse_conv_bias_with_z;
+    static bool m_valid;
+    OptionValMap m_option;
 };
 
 ///////////////////////// graph record options ///////////////////////////
@@ -127,6 +139,10 @@ public:
 
     std::string option_name() const override { return m_option_name; };
 
+    static void set_valid(bool val) { m_valid = val; }
+
+    OptionValMap* get_option() override { return &m_option; }
+
 private:
     GraphRecordOption();
     template <typename ModelImpl>
@@ -137,6 +153,8 @@ private:
     bool const_shape;
     bool fake_first;
     bool no_sanity_check;
+    static bool m_valid;
+    OptionValMap m_option;
 };
 
 ///////////////////////// memory optimize options /////////////////////////
diff --git a/lite/load_and_run/src/options/option_base.h b/lite/load_and_run/src/options/option_base.h
index ccc7363a..eadaeb16 100644
--- a/lite/load_and_run/src/options/option_base.h
+++ b/lite/load_and_run/src/options/option_base.h
@@ -1,22 +1,13 @@
-/**
- * \file lite/load_and_run/src/options/option_base.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 <functional>
 #include <iostream>
 #include <memory>
 #include <string>
-#include <unordered_map>
 #include <vector>
 #include "megbrain/common.h"
 
 #include "helpers/common.h"
+#include "helpers/utils.h"
 #include "models/model.h"
 
 namespace lar {
@@ -34,6 +25,9 @@ public:
     //! get option name
     virtual std::string option_name() const = 0;
 
+    //! get option map
+    virtual OptionValMap* get_option() { return nullptr; }
+
     virtual ~OptionBase() = default;
 };
 
@@ -43,7 +37,10 @@ public:
 class OptionFactory {
 public:
     using OptionCreator = std::function<std::shared_ptr<OptionBase>()>;
-    using OptionMap = std::unordered_map<std::string, OptionCreator>;
+    using OptionValidater = std::function<void(bool)>;
+
+    using OptionCreatorMap = std::unordered_map<std::string, OptionCreator>;
+    using OptionValidaterMap = std::unordered_map<std::string, OptionValidater>;
 
     //! get Singleton option factory
     static OptionFactory& get_Instance() {
@@ -52,29 +49,49 @@ public:
     }
 
     //! registe option creator into option map
-    void registe_options(std::string name, OptionCreator creator) {
-        if (option_creator_map.count(name) == 0) {
-            option_creator_map[name] = creator;
+    void registe_options_creator(std::string name, OptionCreator creator) {
+        if (m_option_creator_map.count(name) == 0) {
+            m_option_creator_map[name] = creator;
+        }
+    }
+    //! registe option validater into option map
+    void registe_options_validater(std::string name, OptionValidater validater) {
+        if (m_option_validater_map.count(name) == 0) {
+            m_option_validater_map[name] = validater;
         }
     }
 
     //! get creator map
-    OptionMap* get_option_creator_map() { return &option_creator_map; }
+    OptionCreatorMap* get_option_creator_map() { return &m_option_creator_map; }
+
+    //! get validater map
+    OptionValidaterMap* get_option_validater_map() { return &m_option_validater_map; }
 
 private:
     OptionFactory(){};
-    OptionMap option_creator_map;
+    OptionCreatorMap m_option_creator_map;
+    OptionValidaterMap m_option_validater_map;
 };
 
 }  // namespace lar
 
-#define REGIST_OPTION_CREATOR(name_, creator_)                                    \
-    struct OptionRegister_##name_ {                                               \
-        OptionRegister_##name_() {                                                \
-            lar::OptionFactory::get_Instance().registe_options(#name_, creator_); \
-        }                                                                         \
-    };                                                                            \
-    OptionRegister_##name_ name_;
+#define REGIST_OPTION_CREATOR(_name, _creator)                          \
+    struct CreatorRegister_##_name {                                    \
+        CreatorRegister_##_name() {                                     \
+            lar::OptionFactory::get_Instance().registe_options_creator( \
+                    #_name, _creator);                                  \
+        }                                                               \
+    };                                                                  \
+    CreatorRegister_##_name creator_##_name;
+
+#define REGIST_OPTION_VALIDATER(_name, _validater)                        \
+    struct ValitaterRegister_##_name {                                    \
+        ValitaterRegister_##_name() {                                     \
+            lar::OptionFactory::get_Instance().registe_options_validater( \
+                    #_name, _validater);                                  \
+        }                                                                 \
+    };                                                                    \
+    ValitaterRegister_##_name validater_##_name;
 
 #define CONFIG_MODEL_FUN                                                    \
     if (model->type() == ModelType::LITE_MODEL) {                           \
diff --git a/lite/load_and_run/src/options/plugin_options.cpp b/lite/load_and_run/src/options/plugin_options.cpp
index 2c244b92..fa78c8ea 100644
--- a/lite/load_and_run/src/options/plugin_options.cpp
+++ b/lite/load_and_run/src/options/plugin_options.cpp
@@ -1,12 +1,3 @@
-/**
- * \file lite/load_and_run/src/options/plugin_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 "plugin_options.h"
 #include <map>
 #include "misc.h"
diff --git a/lite/load_and_run/src/options/plugin_options.h b/lite/load_and_run/src/options/plugin_options.h
index b8822d02..9c52c722 100644
--- a/lite/load_and_run/src/options/plugin_options.h
+++ b/lite/load_and_run/src/options/plugin_options.h
@@ -1,12 +1,3 @@
-/**
- * \file lite/load_and_run/src/options/plugin_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>
 #if __linux__ || __unix__
diff --git a/lite/load_and_run/src/options/strategy_options.cpp b/lite/load_and_run/src/options/strategy_options.cpp
index 254b9994..38125c4d 100644
--- a/lite/load_and_run/src/options/strategy_options.cpp
+++ b/lite/load_and_run/src/options/strategy_options.cpp
@@ -1,24 +1,21 @@
-/**
- * \file lite/load_and_run/src/options/strategy_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 "strategy_options.h"
 #include "models/model_mdl.h"
 
 using namespace lar;
 
 DECLARE_bool(c_opr_lib_with_param);
-
+DECLARE_bool(fitting);
 StrategyOption::StrategyOption() {
     m_option_name = "run_strategy";
-    warmup_iter = FLAGS_warmup_iter;
-    run_iter = FLAGS_iter;
-    threads = FLAGS_thread;
+    warmup_iter = FLAGS_fitting ? 3 : FLAGS_warmup_iter;
+    run_iter = FLAGS_fitting ? 10 : FLAGS_iter;
+    threads = FLAGS_fitting ? 1 : FLAGS_thread;
+    m_option = {
+            {"iter", lar::NumberInt32::make(run_iter)},
+            {"warmup_iter", lar::NumberInt32::make(warmup_iter)},
+            {"thread", lar::NumberInt32::make(threads)},
+
+    };
 }
 
 std::shared_ptr<OptionBase> StrategyOption::create_option() {
@@ -60,8 +57,7 @@ void TestcaseOption::config_model(
     if (model->type() == ModelType::MEGDL_MODEL) {
         auto model_ptr = std::static_pointer_cast<ModelMdl>(model);
         if (model_ptr->get_testcase_num() && !FLAGS_c_opr_lib_with_param) {
-            if (runtime_param.stage == RunStage::MODEL_RUNNING) {
-                auto load_result = model_ptr->get_mdl_load_result();
+            if (runtime_param.stage == RunStage::AFTER_MODEL_LOAD) {
                 auto input_tensor = model_ptr->get_test_input();
                 auto loader = model_ptr->reset_loader();
                 auto testcase = loader->load(model_ptr->get_mdl_config(), false);
diff --git a/lite/load_and_run/src/options/strategy_options.h b/lite/load_and_run/src/options/strategy_options.h
index 338bcb8d..51430341 100644
--- a/lite/load_and_run/src/options/strategy_options.h
+++ b/lite/load_and_run/src/options/strategy_options.h
@@ -1,12 +1,3 @@
-/**
- * \file lite/load_and_run/src/options/strategy_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.
- */
-
 #include <gflags/gflags.h>
 #include "models/model.h"
 #include "option_base.h"
@@ -32,6 +23,8 @@ public:
     //! get option name
     std::string option_name() const override { return m_option_name; };
 
+    OptionValMap* get_option() override { return &m_option; }
+
 private:
     //! Constructor
     StrategyOption();
@@ -43,6 +36,7 @@ private:
     size_t run_iter;     //! iteration number for running model
     size_t threads;      //! thread number for running model (NOTE:it's different
                          //! from multithread device )
+    OptionValMap m_option;
 };
 
 class TestcaseOption final : public OptionBase {
diff --git a/lite/load_and_run/src/strategys/strategy.cpp b/lite/load_and_run/src/strategys/strategy.cpp
index fadbe8d9..36e20f6f 100644
--- a/lite/load_and_run/src/strategys/strategy.cpp
+++ b/lite/load_and_run/src/strategys/strategy.cpp
@@ -1,18 +1,10 @@
-
-/**
- * \file lite/load_and_run/src/strategys/strategy.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 "strategy.h"
 #include <iostream>
+#include "strategy_fitting.h"
+#include "strategy_normal.h"
 
 using namespace lar;
-
+DECLARE_bool(fitting);
 std::shared_ptr<StrategyBase> StrategyBase::create_strategy(std::string model_path) {
     if (FLAGS_fitting) {
         return std::make_shared<FittingStrategy>(model_path);
diff --git a/lite/load_and_run/src/strategys/strategy.h b/lite/load_and_run/src/strategys/strategy.h
index 321a7cd7..181ecf22 100644
--- a/lite/load_and_run/src/strategys/strategy.h
+++ b/lite/load_and_run/src/strategys/strategy.h
@@ -1,23 +1,11 @@
-/**
- * \file lite/load_and_run/src/strategys/strategy.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 <string>
 #include <unordered_map>
 #include "helpers/common.h"
 #include "models/model.h"
 #include "options/option_base.h"
-
-DECLARE_bool(fitting);
-
 namespace lar {
+using OptionMap = std::unordered_map<std::string, std::shared_ptr<OptionBase>>;
 /*!
  * \brief: load and run strategy base class
  */
@@ -30,34 +18,10 @@ public:
     virtual ~StrategyBase() = default;
 
     RuntimeParam m_runtime_param;
-    std::unordered_map<std::string, std::shared_ptr<OptionBase>> m_options;
-};
 
-/*!
- * \brief: normal strategy for running
- */
-class NormalStrategy : public StrategyBase {
-public:
-    NormalStrategy(std::string model_path);
-
-    //! run model with runtime parameter
-    void run() override;
-
-private:
-    //! run model subline for multiple thread
-    void run_subline();
-
-    std::string m_model_path;
+    std::shared_ptr<OptionMap> m_options;
 };
 
-/*!
- * \brief: Fitting strategy for running
- */
-class FittingStrategy : public StrategyBase {
-public:
-    FittingStrategy(std::string model_path);
-    void run() override;
-};
 }  // namespace lar
 
 // vim: syntax=cpp.doxygen foldmethod=marker foldmarker=f{{{,f}}}
diff --git a/lite/load_and_run/src/strategys/strategy_fitting.cpp b/lite/load_and_run/src/strategys/strategy_fitting.cpp
index ffa39884..20960a01 100644
--- a/lite/load_and_run/src/strategys/strategy_fitting.cpp
+++ b/lite/load_and_run/src/strategys/strategy_fitting.cpp
@@ -1,24 +1,590 @@
-/**
- * \file lite/load_and_run/src/strategys/strategy_fitting.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 "strategy.h"
+#include "strategy_fitting.h"
+#if defined(_WIN32)
+#include <io.h>
+#define F_OK         0
+#define access(a, b) _access(a, b)
+#elif __linux__ || __unix__ || __APPLE__
+#include <unistd.h>
+#endif
+#include <fstream>
+#include <iostream>
+#include <list>
+#include <regex>
+#include <thread>
+#include "lite/pack_model.h"
+#include "megbrain/common.h"
+#include "megbrain/comp_node_env.h"
+#include "megbrain/exception.h"
+#include "megbrain/utils/timer.h"
+#include "megbrain/version.h"
+#include "megdnn/version.h"
+#include "misc.h"
+DECLARE_bool(cpu);
 using namespace lar;
 
-FittingStrategy::FittingStrategy(std::string) {
-    mgb_assert("this version don't support Fitting Strategy");
+// /////////////////// OptionsFastManager ///////////////////
+void OptionsFastManager::init(std::shared_ptr<OptionMap>& options) {
+    m_option_group_cnt = 0;
+    m_fixed_option_cnt = 0;
+    m_internal_options_name = {
+            {"enable_fuse_conv_bias_with_z"},
+            {"enable_fuse_preprocess"},
+            {"record_comp_seq"}};
+    //! record the independent option value
+    for (auto& option : *options) {
+        auto option_vals = option.second->get_option();
+        if (option_vals) {
+            for (auto& item : *option_vals) {
+                m_valid_option_vals.insert(item);
+            }
+        }
+    }
 };
 
+std::string OptionsFastManager::set_next_fixed_options() {
+    reset_option();
+    auto& fixed_options_name = m_fixed_options_name[m_fixed_option_cnt];
+    for (auto& item : fixed_options_name) {
+        if (m_valid_option_vals.find(item) != m_valid_option_vals.end()) {
+            auto& option_val = m_valid_option_vals[item];
+            auto type = option_val->get_type();
+            if (type == JsonValueType::Bool) {
+                auto option_val_ptr = std::static_pointer_cast<lar::Bool>(option_val);
+                option_val_ptr->set_value(true);
+            } else if (type == JsonValueType::String && item == "layout_transform") {
+                auto option_val_ptr = std::static_pointer_cast<lar::String>(option_val);
+                //! device type
+                option_val_ptr->set_value(fixed_options_name[0]);
+            } else {
+                mgb_log_error(
+                        "invalid JsonValueType:%s to set next value for fitting mode",
+                        option_val->type_string().c_str());
+            }
+        }
+    }
+    ++m_fixed_option_cnt;
+    std::string code = m_gflags_coder.encode(m_valid_option_vals);
+    return code;
+}
+
+std::string OptionsFastManager::set_next_options() {
+    reset_option();
+    auto& constraint = m_internal_options_name[m_option_group_cnt];
+    for (auto& item : constraint) {
+        if (m_valid_option_vals.find(item) != m_valid_option_vals.end()) {
+            auto& option_val = m_valid_option_vals[item];
+            auto type = option_val->get_type();
+            if (type == JsonValueType::Bool) {
+                auto option_val_ptr = std::static_pointer_cast<lar::Bool>(option_val);
+                option_val_ptr->set_value(true);
+            } else {
+                mgb_log_error(
+                        "invalid JsonValueType: %s to set next value for fitting mode",
+                        option_val->type_string().c_str());
+            }
+        }
+    }
+    ++m_option_group_cnt;
+    std::string code = m_gflags_coder.encode(m_valid_option_vals);
+    return code;
+}
+
+bool OptionsFastManager::is_end_options() {
+    return m_option_group_cnt == m_internal_options_name.size();
+}
+
+bool OptionsFastManager::is_fixed_end() {
+    return m_fixed_option_cnt == m_fixed_options_name.size();
+}
+
+void OptionsFastManager::set_options(const std::string& code) {
+    reset_option();
+#if MGB_ENABLE_JSON
+    const std::regex json_regex(".\\{");
+#endif
+    const std::regex gflags_regex("--.*=.*");
+    if (std::regex_search(code, gflags_regex)) {
+        m_gflags_coder.decode(code, m_valid_option_vals);
+    }
+#if MGB_ENABLE_JSON
+    else if (std::regex_search(code, json_regex)) {
+        m_json_coder.decode(code, m_valid_option_vals);
+    }
+#endif
+    else {
+        mgb_log_error("invalid options code format \"%s\" to decode", code.c_str());
+    }
+}
+
+void OptionsFastManager::registe_fixed_options(
+        const std::vector<std::string>& option_name) {
+    m_fixed_options_name.push_back(option_name);
+}
+
+std::string OptionsFastManager::get_curr_options_code(CoderType type, bool encode_all) {
+    if (type == CoderType::GFLAGS) {
+        return m_gflags_coder.encode(m_valid_option_vals, encode_all);
+    }
+#if MGB_ENABLE_JSON
+    else if (type == CoderType::JSON) {
+        return m_json_coder.encode(m_valid_option_vals, encode_all);
+    }
+#endif
+    else {
+        mgb_log_error("coder should be implemented in furture");
+        return "";
+    }
+}
+#if MGB_ENABLE_JSON
+std::vector<std::shared_ptr<mgb::json::Object>> OptionsFastManager::get_json() {
+    std::vector<std::shared_ptr<mgb::json::Object>> ret =
+            m_json_coder.encode(m_valid_option_vals);
+    return ret;
+}
+#endif
+
+void OptionsFastManager::reset_option() {
+    for (auto& option : m_valid_option_vals) {
+        option.second->reset_value();
+    }
+}
+
+////////////////// OptionsTimeProfiler //////////////////
+
+void OptionsTimeProfiler::profile_with_given_options(
+        const std::string& model_path, std::shared_ptr<OptionMap>& given_options,
+        const std::string& option_code) {
+    RuntimeParam runtime_param;
+    auto model = ModelBase::create_model(model_path);
+    mgb::RealTimer timer;
+    auto stage_config_model = [&]() {
+        for (auto& option : *given_options) {
+            option.second->config_model(runtime_param, model);
+        }
+    };
+
+    auto warm_up = [&]() {
+        for (size_t i = 0; i < runtime_param.warmup_iter; i++) {
+            auto start = timer.get_msecs();
+            model->run_model();
+            model->wait();
+            mgb_log_warn("warm up %ld time %f ms", i, timer.get_msecs() - start);
+        }
+    };
+    double inference_time = 0.0;
+    auto run_iter = [&]() {
+        for (size_t i = 0; i < runtime_param.run_iter; i++) {
+            auto start = timer.get_msecs();
+            model->run_model();
+            model->wait();
+            auto end = timer.get_msecs();
+            mgb_log_warn("run iter %ld time %f ms", i, end - start);
+            inference_time += end - start;
+            mgb_throw_if(
+                    inference_time > TIME_OUT, mgb::TimeoutError,
+                    "time out while using fitting");
+        }
+    };
+
+    //! model with testcase
+    size_t case_num = runtime_param.testcase_num;
+
+    bool exception_state = false;
+    MGB_TRY {
+        timer.reset();
+        runtime_param.stage = RunStage::BEFORE_MODEL_LOAD;
+        stage_config_model();
+
+        model->load_model();
+        //! after load configure
+        auto config_model_before_runing = [&]() {
+            for (auto stage :
+                 {RunStage::AFTER_MODEL_LOAD, RunStage::GLOBAL_OPTIMIZATION,
+                  RunStage::BEFORE_OUTSPEC_SET, RunStage::AFTER_OUTSPEC_SET,
+                  RunStage::MODEL_RUNNING}) {
+                runtime_param.stage = stage;
+                stage_config_model();
+            }
+        };
+        timer.reset();
+        for (size_t idx = 0; idx < case_num; idx++) {
+            auto start = timer.get_msecs();
+            config_model_before_runing();
+            auto end = timer.get_msecs();
+            mgb_log_warn("config model time %f ms", end - start);
+            warm_up();
+            run_iter();
+        }
+        runtime_param.stage = RunStage::AFTER_MODEL_RUNNING;
+        stage_config_model();
+    }
+    MGB_CATCH(std::exception & exc, {
+        mgb_log_error("catch exception: %s", exc.what());
+        exception_state = true;
+    });
+
+    auto average = inference_time / runtime_param.run_iter;
+    if (exception_state) {
+        average = TIME_OUT;
+    }
+
+    //! record profile result
+    printf("profile option:\n%s\naverage time = %.2f\n", option_code.c_str(), average);
+    m_options_profile_result.insert({option_code, average});
+
+    //! record the best result
+
+    if (average < m_best_setting.second) {
+        m_best_setting.first = option_code;
+        m_best_setting.second = average;
+    }
+}
+/////////////////////////// UserInfoParser /////////////////////////////
+void UserInfoParser::get_user_info() {
+    //! register user information tips
+    std::vector<std::pair<std::string, std::string>> info_tips;
+    m_user_info["fitting_preference"] = "Inferspeed";
+    info_tips.push_back(
+            {"use_const_shape", "whether the input shape is constant?(yes/no)?"});
+
+    for (auto& tip : info_tips) {
+        std::cout << tip.second;
+        std::string answer = "";
+        std::cin >> answer;
+        m_user_info[tip.first] = answer;
+    }
+}
+void UserInfoParser::parse_info(std::shared_ptr<OptionsFastManager>& manager) {
+    std::vector<std::string> fixed_options;
+    if (m_user_info["use_const_shape"] == "yes") {
+        fixed_options.push_back("const_shape");
+    } else if (m_user_info["use_const_shape"] != "no") {
+        mgb_log_error("invalid user information for \"use_const_shape\"");
+    }
+    fixed_options.push_back("enable_fuse_conv_bias_nonlinearity");
+    std::vector<std::string> tmp_options;
+
+    auto insert_common_cpu_options = [&]() {
+        tmp_options = {"cpu"};
+        tmp_options.insert(
+                tmp_options.end(), fixed_options.begin(), fixed_options.end());
+        manager->registe_fixed_options(tmp_options);
+
+        tmp_options = {"cpu", "weight_preprocess", "fast_run"};
+        tmp_options.insert(
+                tmp_options.end(), fixed_options.begin(), fixed_options.end());
+        manager->registe_fixed_options(tmp_options);
+
+        tmp_options = {"cpu", "layout_transform"};
+        tmp_options.insert(
+                tmp_options.end(), fixed_options.begin(), fixed_options.end());
+        manager->registe_fixed_options(tmp_options);
+
+        tmp_options = {"cpu", "layout_transform", "weight_preprocess"};
+        tmp_options.insert(
+                tmp_options.end(), fixed_options.begin(), fixed_options.end());
+        manager->registe_fixed_options(tmp_options);
+    };
+
+#if (MEGDNN_AARCH64 || MEGDNN_ARMV7)
+    //! arm cpu device
+        insert_common_cpu_options();
+        tmp_options = {"cpu", "enable_nchw44"};
+        tmp_options.insert(
+                tmp_options.end(), fixed_options.begin(), fixed_options.end());
+        manager->registe_fixed_options(tmp_options);
+
+        tmp_options = {"cpu", "enable_nchw44", "weight_preprocess", "fast_run"};
+        tmp_options.insert(
+                tmp_options.end(), fixed_options.begin(), fixed_options.end());
+        manager->registe_fixed_options(tmp_options);
+
+        tmp_options = {"cpu", "enable_nchw44_dot"};
+        tmp_options.insert(
+                tmp_options.end(), fixed_options.begin(), fixed_options.end());
+        manager->registe_fixed_options(tmp_options);
+
+        tmp_options = {"cpu", "enable_nchw44_dot", "weight_preprocess", "fast_run"};
+        tmp_options.insert(
+                tmp_options.end(), fixed_options.begin(), fixed_options.end());
+        manager->registe_fixed_options(tmp_options);
+
+#else
+#if LITE_WITH_CUDA
+    //! build with cuda and not force to use cpu device
+    if (!FLAGS_cpu) {
+        tmp_options = {"cuda"};
+        tmp_options.insert(
+                tmp_options.end(), fixed_options.begin(), fixed_options.end());
+        manager->registe_fixed_options(tmp_options);
+
+        tmp_options = {"cuda", "enable_nchw4"};
+        tmp_options.insert(
+                tmp_options.end(), fixed_options.begin(), fixed_options.end());
+        manager->registe_fixed_options(tmp_options);
+
+        tmp_options = {"cuda", "enable_chwn4"};
+        tmp_options.insert(
+                tmp_options.end(), fixed_options.begin(), fixed_options.end());
+        manager->registe_fixed_options(tmp_options);
+
+        tmp_options = {"cuda", "enable_nchw64"};
+        tmp_options.insert(
+                tmp_options.end(), fixed_options.begin(), fixed_options.end());
+        manager->registe_fixed_options(tmp_options);
+
+        tmp_options = {"cuda", "enable_nchw32"};
+        tmp_options.insert(
+                tmp_options.end(), fixed_options.begin(), fixed_options.end());
+        manager->registe_fixed_options(tmp_options);
+
+        tmp_options = {"cuda", "layout_transform"};
+        tmp_options.insert(
+                tmp_options.end(), fixed_options.begin(), fixed_options.end());
+        manager->registe_fixed_options(tmp_options);
+
+        tmp_options = {"cuda", "layout_transform", "weight_preprocess"};
+        tmp_options.insert(
+                tmp_options.end(), fixed_options.begin(), fixed_options.end());
+        manager->registe_fixed_options(tmp_options);
+    }
+
+#endif
+#if LITE_WITH_CUDA
+    //! build with cuda force to use cpu
+    if (FLAGS_cpu) {
+#endif
+        //！x86 cpu options
+        insert_common_cpu_options();
+        tmp_options = {"cpu", "enable_nchw88"};
+        tmp_options.insert(
+                tmp_options.end(), fixed_options.begin(), fixed_options.end());
+        manager->registe_fixed_options(tmp_options);
+
+        tmp_options = {"cpu", "enable_nchw88", "weight_preprocess", "fast_run"};
+        tmp_options.insert(
+                tmp_options.end(), fixed_options.begin(), fixed_options.end());
+        manager->registe_fixed_options(tmp_options);
+#if LITE_WITH_CUDA
+    }
+#endif
+#endif
+
+    m_proifler_type = ProiflerType::TIME_PROFILER;
+}
+
+// /////////////////// FittingStrategy //////////////////////////////////
+FittingStrategy::FittingStrategy(std::string model_path) {
+    m_manager = std::make_shared<OptionsFastManager>();
+    m_dumped_model = FLAGS_dump_fitting_model;
+    mgb::set_log_level(mgb::LogLevel::WARN);
+    m_options = std::make_shared<OptionMap>();
+    m_model_path = model_path;
+    auto option_creator_map = OptionFactory::get_Instance().get_option_creator_map();
+    auto option_validater_map =
+            OptionFactory::get_Instance().get_option_validater_map();
+    //! validate option used in fitting
+    auto validate_option = [&](std::string name) -> void {
+        if (option_validater_map->find(name) != option_validater_map->end()) {
+            auto& validater = (*option_validater_map).at(name);
+            if (validater) {
+                validater(true);
+            }
+        }
+    };
+
+    //! construct option which is valid
+    auto construct_option = [&](std::string name) -> void {
+        auto& creator = (*option_creator_map)[name];
+        auto option = creator();
+        if (option) {
+            m_options->insert({name, option});
+        }
+    };
+
+    //! get all options which is valid
+    for (auto& creator : *option_creator_map) {
+        auto name = creator.first;
+        if (m_options->count(name) == 0) {
+            validate_option(name);
+            construct_option(name);
+        }
+    }
+
+    m_manager->init(m_options);
+}
+
+void FittingStrategy::dump_best_options_with_model() {
+    std::vector<uint8_t> info_algo_policy_data;
+    std::vector<uint8_t> info_binary_cache_data;
+    auto model = ModelBase::create_model(m_model_path);
+    RuntimeParam runtime_param;
+    auto stage_config_model = [&]() {
+        for (auto& option : *m_options) {
+            option.second->config_model(runtime_param, model);
+        }
+    };
+    runtime_param.stage = RunStage::BEFORE_MODEL_LOAD;
+    stage_config_model();
+
+    model->load_model();
+
+    //! get json info vector
+    std::string json_info_str;
+#if MGB_ENABLE_JSON
+    std::shared_ptr<mgb::json::Object> code_json = model->get_io_info();
+    m_packed_info.push_back({mgb::json::String("IO"), (*code_json)["IO"]});
+    auto info_json = m_manager->get_json();
+    m_packed_info.push_back({mgb::json::String("options"), (*info_json[0])["options"]});
+    m_packed_info.push_back({mgb::json::String("device"), (*info_json[1])["device"]});
+    m_packed_info.push_back(
+            {mgb::json::String("backend"), mgb::json::String::make("MGE")});
+    int lite_major, lite_minor, lite_patch;
+    lite::get_version(lite_major, lite_minor, lite_patch);
+    std::string version = std::to_string(lite_major);
+    version += ".";
+    version += std::to_string(lite_minor) + ".";
+    version += std::to_string(lite_patch);
+    m_packed_info.push_back(
+            {mgb::json::String("version"), mgb::json::String::make(version)});
+    m_packed_info.push_back({mgb::json::String("valid"), mgb::json::Bool::make(true)});
+    m_packed_info.push_back(
+            {mgb::json::String("name"), mgb::json::String::make("packed_model")});
+    auto obj = mgb::json::Object::make(m_packed_info);
+    json_info_str = obj->to_string();
+#endif
+    std::vector<uint8_t> json_info(json_info_str.begin(), json_info_str.end());
+
+    //! get model binary data after optimized
+    for (auto stage :
+         {RunStage::AFTER_MODEL_LOAD, RunStage::GLOBAL_OPTIMIZATION,
+          RunStage::BEFORE_OUTSPEC_SET, RunStage::AFTER_OUTSPEC_SET,
+          RunStage::MODEL_RUNNING}) {
+        runtime_param.stage = stage;
+        stage_config_model();
+    }
+    model->run_model();
+    model->wait();
+
+    std::vector<uint8_t> model_data = model->get_model_data();
+    mgb_log_warn("model_data size=%zu", model_data.size());
+    mgb_log_warn("json_info size=%zu", json_info.size());
+    mgb_log_warn("info_algo_policy_data size=%zu", info_algo_policy_data.size());
+    mgb_log_warn("info_binary_cache_data size=%zu", info_binary_cache_data.size());
+    lite::ModelPacker packer(
+            model_data, m_dumped_model, json_info, info_algo_policy_data,
+            info_binary_cache_data);
+    packer.set_header();
+    packer.pack_model();
+}
+///////////////////////// AutoCleanFile///////////////////////////
+FittingStrategy::AutoCleanFile::AutoCleanFile(
+        const std::string& model_path, std::shared_ptr<OptionMap>& options)
+        : m_model_path(model_path), m_options(options) {
+    m_filename = "fitting_tmp_model";
+    if (!access(m_filename.c_str(), F_OK)) {
+        remove(m_filename.c_str());
+    }
+}
+
+FittingStrategy::AutoCleanFile::~AutoCleanFile() {
+    if (!access(m_filename.c_str(), F_OK)) {
+        remove(m_filename.c_str());
+    }
+}
+
+void FittingStrategy::AutoCleanFile::dump_model() {
+    auto model = ModelBase::create_model(m_model_path);
+    RuntimeParam runtime_param;
+    auto stage_config_model = [&]() {
+        for (auto& option : *m_options) {
+            option.second->config_model(runtime_param, model);
+        }
+    };
+    runtime_param.stage = RunStage::BEFORE_MODEL_LOAD;
+    stage_config_model();
+
+    model->load_model();
+    //! get model binary data after optimized
+    for (auto stage :
+         {RunStage::AFTER_MODEL_LOAD, RunStage::GLOBAL_OPTIMIZATION,
+          RunStage::BEFORE_OUTSPEC_SET, RunStage::AFTER_OUTSPEC_SET,
+          RunStage::MODEL_RUNNING}) {
+        runtime_param.stage = stage;
+        stage_config_model();
+    }
+    model->run_model();
+    model->wait();
+
+    std::vector<uint8_t> model_data = model->get_model_data();
+    mgb_log_warn("dumped model_data size=%zu\n", model_data.size());
+    auto fp = fopen(m_filename.c_str(), "wb");
+    fwrite(model_data.data(), 1, model_data.size(), fp);
+    fclose(fp);
+}
+
 void FittingStrategy::run() {
-    mgb_assert("this version don't support Fitting Strategy");
-};
+    auto mgb_version = mgb::get_version();
+    auto dnn_version = megdnn::get_version();
+    printf("megbrain/lite/load_and_run:\nusing MegBrain "
+           "%d.%d.%d(%d) and MegDNN %d.%d.%d\n",
+           mgb_version.major, mgb_version.minor, mgb_version.patch, mgb_version.is_dev,
+           dnn_version.major, dnn_version.minor, dnn_version.patch);
+    // ! create profiler with given user info
+    m_info_parser.get_user_info();
+    m_info_parser.parse_info(m_manager);
+    auto profiler = m_info_parser.create_profiler();
+    mgb_throw_if(
+            profiler == nullptr, mgb::AssertionError,
+            "get empty profiler for fittting\n");
+    //! profile model with fixed options
+    while (!m_manager->is_fixed_end()) {
+        std::string option_str = m_manager->set_next_fixed_options();
+        profiler->profile_with_given_options(m_model_path, m_options, option_str);
+#if (MEGDNN_AARCH64 || MEGDNN_ARMV7)
+        //! sleep to keep machine with stable cpu frequence
+        usleep(500000);
+#endif
+    }
+    std::string m_tmp_model = m_model_path;
+    const std::regex layout_regex("layout_transform");
+    auto best_fixed_options = profiler->get_best_setting();
+    m_manager->set_options(best_fixed_options);
+    //! dump model for global layout transform
+    auto m_tmp_file = AutoCleanFile(m_model_path, m_options);
+    if (std::regex_search(best_fixed_options, layout_regex)) {
+        m_tmp_file.dump_model();
+        m_model_path = m_tmp_file.filename();
+    }
+    //! profile model with given profiler
+    while (!m_manager->is_end_options()) {
+        std::string curr_option_str = m_manager->set_next_options();
+        //! set option with current option and fixed options
+        if (m_model_path == m_tmp_model) {
+            auto total_option_str = curr_option_str + best_fixed_options;
+            m_manager->set_options(total_option_str);
+        }
+
+        curr_option_str += best_fixed_options;
+        profiler->profile_with_given_options(m_model_path, m_options, curr_option_str);
+#if (MEGDNN_AARCH64 || MEGDNN_ARMV7)
+        usleep(500000);
+#endif
+    }
+    //! set with best options and inference
+    m_model_path = m_tmp_model;
+    auto best_options = profiler->get_best_setting();
+
+    m_manager->set_options(best_options);
+    profiler->profile_with_given_options(m_model_path, m_options, best_options);
+
+    //! save best options into given dir
+    std::cout << "the best options:\n" << best_options << std::endl;
 
+    if (!m_dumped_model.empty()) {
+        dump_best_options_with_model();
+    }
+}
 DEFINE_bool(
-        fitting, false,
-        "whether to use the fitting model, which will auto profile and get "
-        "the best option set!");
\ No newline at end of file
+        fitting, false, "use the fitting mode profile and get the best option set.");
+DEFINE_string(dump_fitting_model, "", "dump the best option and algo cache into model");
diff --git a/lite/load_and_run/src/strategys/strategy_fitting.h b/lite/load_and_run/src/strategys/strategy_fitting.h
new file mode 100644
index 00000000..94789261
--- /dev/null
+++ b/lite/load_and_run/src/strategys/strategy_fitting.h
@@ -0,0 +1,152 @@
+#pragma once
+#include <gflags/gflags.h>
+#include "helpers/utils.h"
+#include "strategy.h"
+DECLARE_bool(fitting);
+DECLARE_string(dump_fitting_model);
+#define TIME_OUT 10000
+namespace lar {
+
+class OptionsFastManager {
+public:
+    using ConstraintMap = std::unordered_map<std::string, bool>;
+
+    OptionsFastManager(){};
+
+    //! init the options value map with given options
+    void init(std::shared_ptr<OptionMap>&);
+
+    //! set next options group cyclely
+    std::string set_next_options();
+    std::string set_next_fixed_options();
+
+    //! check the end of options group
+    bool is_end_options();
+    bool is_fixed_end();
+
+    std::string get_curr_options_code(CoderType, bool encode_all = false);
+
+    //! set current options with given options
+    void set_options(const std::string&);
+
+    void registe_fixed_options(const std::vector<std::string>&);
+
+#if MGB_ENABLE_JSON
+    std::vector<std::shared_ptr<mgb::json::Object>> get_json();
+#endif
+
+private:
+    void reset_option();
+    size_t m_option_group_cnt;
+    size_t m_fixed_option_cnt;
+    OptionValMap m_valid_option_vals;
+    std::vector<std::vector<std::string>> m_internal_options_name;
+    std::vector<std::vector<std::string>> m_fixed_options_name;
+
+#if MGB_ENABLE_JSON
+    JsonOptionsCoder m_json_coder;
+#endif
+
+    GflagsOptionsCoder m_gflags_coder;
+};
+
+//! Options proifler to get the best settings with different evaluate standard
+class OptionsProfiler {
+public:
+    OptionsProfiler(){};
+
+    //! run with m_options
+    virtual void profile_with_given_options(
+            const std::string&, std::shared_ptr<OptionMap>&, const std::string&) = 0;
+
+    //! get the best setting and inference time
+    virtual std::string get_best_setting() { return ""; }
+
+    virtual ~OptionsProfiler() = default;
+};
+
+/**
+ * profiler to get the fast setting
+ */
+class OptionsTimeProfiler final : public OptionsProfiler {
+public:
+    OptionsTimeProfiler(){};
+
+    void profile_with_given_options(
+            const std::string&, std::shared_ptr<OptionMap>&,
+            const std::string&) override;
+
+    std::string get_best_setting() override { return m_best_setting.first; }
+
+private:
+    std::unordered_map<std::string, double> m_options_profile_result;
+    std::pair<std::string, double> m_best_setting = {"", TIME_OUT};
+};
+
+/**
+ * parse information from user given
+ */
+class UserInfoParser {
+public:
+    UserInfoParser(){};
+
+    void get_user_info();
+
+    void parse_info(std::shared_ptr<OptionsFastManager>&);
+
+    std::shared_ptr<OptionsProfiler> create_profiler() {
+        switch (m_proifler_type) {
+            case ProiflerType::TIME_PROFILER:
+                return std::make_shared<OptionsTimeProfiler>();
+            case ProiflerType::UNSPEC_PROFILER:
+                return nullptr;
+            default:
+                return nullptr;
+        }
+    }
+
+private:
+    ProiflerType m_proifler_type;
+    std::unordered_map<std::string, std::string> m_user_info;
+};
+/*!
+ * \brief: Fitting strategy for running
+ */
+class FittingStrategy : public StrategyBase {
+public:
+    class AutoCleanFile {
+    public:
+        AutoCleanFile(
+                const std::string& model_path, std::shared_ptr<OptionMap>& options);
+        void dump_model();
+        std::string filename() { return m_filename; }
+        ~AutoCleanFile();
+
+    private:
+        std::string m_model_path;
+        std::shared_ptr<OptionMap> m_options;
+        std::string m_filename;
+    };
+
+    FittingStrategy(std::string model_path);
+
+    void run() override;
+
+    void dump_best_options_with_model();
+
+    void dump_model();
+
+private:
+    std::string m_model_path;
+
+    std::string m_dumped_model;
+    std::shared_ptr<OptionsFastManager> m_manager;
+
+    UserInfoParser m_info_parser;
+
+#if MGB_ENABLE_JSON
+    std::vector<std::pair<mgb::json::String, std::shared_ptr<mgb::json::Value>>>
+            m_packed_info;
+#endif
+};
+}  // namespace lar
\ No newline at end of file
diff --git a/lite/load_and_run/src/strategys/strategy_normal.cpp b/lite/load_and_run/src/strategys/strategy_normal.cpp
index e23f6712..3743cf15 100644
--- a/lite/load_and_run/src/strategys/strategy_normal.cpp
+++ b/lite/load_and_run/src/strategys/strategy_normal.cpp
@@ -1,11 +1,4 @@
-/**
- * \file lite/load_and_run/src/strategys/strategy_normal.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 "strategy_normal.h"
 #include <iostream>
 #include <thread>
 #include "megbrain/common.h"
@@ -13,13 +6,13 @@
 #include "megbrain/version.h"
 #include "megdnn/version.h"
 #include "misc.h"
-#include "strategy.h"
 
 using namespace lar;
 
 NormalStrategy::NormalStrategy(std::string model_path) {
     mgb::set_log_level(mgb::LogLevel::WARN);
     lite::set_log_level(LiteLogLevel::WARN);
+    m_options = std::make_shared<OptionMap>();
     m_model_path = model_path;
     auto option_creator_map = OptionFactory::get_Instance().get_option_creator_map();
     mgb_log_debug("option map size: %lu", option_creator_map->size());
@@ -27,13 +20,13 @@ NormalStrategy::NormalStrategy(std::string model_path) {
         auto& creator = (*option_creator_map)[name];
         auto option = creator();
         if (option) {
-            m_options.insert({name, option});
+            m_options->insert({name, option});
         }
     };
 
     for (auto& creator : *option_creator_map) {
         auto name = creator.first;
-        if (m_options.count(name) == 0) {
+        if (m_options->count(name) == 0) {
             construct_option(name);
         }
     }
@@ -44,7 +37,7 @@ void NormalStrategy::run_subline() {
     mgb_assert(model != nullptr, "create model failed!!");
 
     auto stage_config_model = [&]() {
-        for (auto& option : m_options) {
+        for (auto& option : *m_options) {
             option.second->config_model(m_runtime_param, model);
         }
     };
@@ -57,18 +50,14 @@ void NormalStrategy::run_subline() {
     printf("load model: %.3fms\n", timer.get_msecs_reset());
 
     //! after load configure
-    m_runtime_param.stage = RunStage::AFTER_MODEL_LOAD;
-    stage_config_model();
-
-    m_runtime_param.stage = RunStage::GLOBAL_OPTIMIZATION;
-    stage_config_model();
-
-    m_runtime_param.stage = RunStage::BEFORE_OUTSPEC_SET;
-    stage_config_model();
-
-    // for get static memmory information options
-    m_runtime_param.stage = RunStage::AFTER_OUTSPEC_SET;
-    stage_config_model();
+    auto config_after_load = [&]() {
+        for (auto stage :
+             {RunStage::AFTER_MODEL_LOAD, RunStage::GLOBAL_OPTIMIZATION,
+              RunStage::BEFORE_OUTSPEC_SET, RunStage::AFTER_OUTSPEC_SET}) {
+            m_runtime_param.stage = stage;
+            stage_config_model();
+        }
+    };
 
     auto warm_up = [&]() {
         auto warmup_num = m_runtime_param.warmup_iter;
@@ -117,6 +106,8 @@ void NormalStrategy::run_subline() {
 
     double tot_time = 0;
     for (size_t idx = 0; idx < iter_num; idx++) {
+        //! config model
+        config_after_load();
         //! config when running model
         mgb_log_warn("run testcase: %zu ", idx);
         m_runtime_param.stage = RunStage::MODEL_RUNNING;
diff --git a/lite/load_and_run/src/strategys/strategy_normal.h b/lite/load_and_run/src/strategys/strategy_normal.h
new file mode 100644
index 00000000..3e137e1b
--- /dev/null
+++ b/lite/load_and_run/src/strategys/strategy_normal.h
@@ -0,0 +1,22 @@
+#pragma once
+
+#include "strategy.h"
+
+namespace lar {
+/*!
+ * \brief: normal strategy for running
+ */
+class NormalStrategy : public StrategyBase {
+public:
+    NormalStrategy(std::string model_path);
+
+    //! run model with runtime parameter
+    void run() override;
+
+private:
+    //! run model subline for multiple thread
+    void run_subline();
+
+    std::string m_model_path;
+};
+}  // namespace lar
\ No newline at end of file
diff --git a/lite/src/pack_model/pack_model.cpp b/lite/src/pack_model/pack_model.cpp
index a305bd4f..9a7e0206 100644
--- a/lite/src/pack_model/pack_model.cpp
+++ b/lite/src/pack_model/pack_model.cpp
@@ -1,14 +1,3 @@
-/**
- * \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
@@ -192,7 +181,7 @@ ModelPacker::ModelPacker(
         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_fbs_helper = new FbsHelper(this, model_path);
+    m_fbs_helper = std::make_shared<FbsHelper>(this, model_path);
     std::vector<uint8_t> empty_vec;
     m_info_data = info_data_path.empty() ? empty_vec : read_file(info_data_path);
     m_algo_policy_data = info_algo_policy_path.empty()
@@ -207,7 +196,7 @@ ModelPacker::ModelPacker(
         std::vector<uint8_t> model_data, std::string packed_model_path,
         std::vector<uint8_t> info_data, std::vector<uint8_t> info_algo_policy_data,
         std::vector<uint8_t> info_binary_cache_data) {
-    m_fbs_helper = new FbsHelper(this, model_data);
+    m_fbs_helper = std::make_shared<FbsHelper>(this, model_data);
     m_packed_model_path = packed_model_path;
     m_info_data = info_data;
     m_algo_policy_data = info_algo_policy_data;
diff --git a/lite/src/parse_info/cache_parse.h b/lite/src/parse_info/cache_parse.h
index 46f2804e..d114c6de 100644
--- a/lite/src/parse_info/cache_parse.h
+++ b/lite/src/parse_info/cache_parse.h
@@ -1,14 +1,3 @@
-/**
- * \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