diff --git a/RoadMap.md b/RoadMap.md
index 3af28db..b03306e 100644
--- a/RoadMap.md
+++ b/RoadMap.md
@@ -45,7 +45,7 @@
     - [ ] Auto Layer Split
         - [x] get free layer idx
         - [x] fix split layer pipeline
-        - [ ] calculate layer memory and recommend split
+        - [x] calculate layer memory and recommend split
         - [ ] split model before load
     - [x] Async Generation
         - [x] Multi-Sequence Batch=1
diff --git a/examples/run_engine.py b/examples/run_engine.py
index d9a13f1..8e22feb 100644
--- a/examples/run_engine.py
+++ b/examples/run_engine.py
@@ -37,40 +37,28 @@ class Args:
     is_debug: bool = False
 
 
-def init_engine(model_path):
-    model, tok = load_master_model(model_path)
+def init_engine(model_path: str) -> AsyncEngine:
+    model = load_master_model(model_path)
     rpc_manager = LocalRPCManager(model_path)
-    generator = LLMGenerator(rpc_manager, model, tok)
+    generator = LLMGenerator(rpc_manager, model)
     engine = AsyncEngine(generator)
     return engine
 
 
-def init_image_engine(model_path):
-    model, tok = load_master_model(model_path)
+def init_image_engine(model_path: str) -> AsyncEngine:
+    model = load_master_model(model_path)
     rpc_manager = LocalRPCManager(model_path)
-    generator = ImageGenerator(rpc_manager, model, tok)
+    generator = ImageGenerator(rpc_manager, model)
     engine = AsyncEngine(generator)
     return engine
 
 
-async def llm_generate():
-    args = Args()
-
-    engine = init_engine(args.model_path)
-    await engine.start()
+def llm_message():
     messages = [{"role": "user", "content": "Hello, how are you?"}]
-    openai_serving_chat = OpenAIServing(engine, args)
+    return messages
 
-    request = ChatCompletionRequest(model="test", messages=messages)
-    response = await openai_serving_chat.create_chat_completion(request, None)
-    print(response)
-
-
-async def mllm_generate():
-    args = Args()
 
-    engine = init_engine(args.model_path)
-    await engine.start()
+def mllm_message():
     messages = [
         {
             "role": "user",
@@ -80,6 +68,13 @@ async def mllm_generate():
             ],
         }
     ]
+    return messages
+
+
+async def llm_generate(args, messages):
+    engine = init_engine(args.model_path)
+    await engine.start()
+    messages = [{"role": "user", "content": "Hello, how are you?"}]
     openai_serving_chat = OpenAIServing(engine, args)
 
     request = ChatCompletionRequest(model="test", messages=messages)
@@ -87,10 +82,7 @@ async def mllm_generate():
     print(response)
 
 
-async def image_generate():
-    args = Args()
-
-    prompt = "a little dog"
+async def image_generate(args):
     prompt = "germanic romanticism painting of an obscure winter forest in a geocore landscape. Ambient landscape lighting, heavy shading, crystal night sky, stunning stars, topography"
     config = {
         "num_inference_steps": 3,
@@ -99,7 +91,7 @@ async def image_generate():
     }
 
     engine = init_image_engine(args.model_path)
-    _ = await engine.start()
+    await engine.start()
 
     image_serving = ImageServing(engine, args)
 
@@ -110,6 +102,7 @@ async def image_generate():
 
 
 if __name__ == "__main__":
-    asyncio.run(llm_generate())
-    # asyncio.run(mllm_generate())
-    # asyncio.run(image_generate())
+    args = Args()
+    asyncio.run(llm_generate(args, llm_message()))
+    # asyncio.run(llm_generate(args, mllm_message()))
+    # asyncio.run(image_generate(args))
diff --git a/tllm/commons/manager.py b/tllm/commons/manager.py
index 3e047f7..f9661a5 100644
--- a/tllm/commons/manager.py
+++ b/tllm/commons/manager.py
@@ -1,12 +1,11 @@
 import os
 import time
-from typing import List, Optional, Tuple
+from typing import Any, List
 
 from transformers import AutoConfig
 
 from tllm import BACKEND, BackendEnum
 from tllm.commons.communicator import BaseCommunicator
-from tllm.generate import LLMGenerator, TokenizerUtils
 from tllm.models.file_helper import find_weight_file, get_model_path
 from tllm.models.register import MODEL_REGISTER
 from tllm.models.weight_helper import load_gguf_weight, read_from_safetensors, tie_embedding_weights
@@ -65,6 +64,8 @@ def __init__(self, weights):
         return TransformerWeightHandler(weights)
 
     def _post_init(self):
+        from tllm.generate import TokenizerUtils
+
         if str(self.model_path).endswith(".gguf"):
             raise NotImplementedError("GGUF model not supported")
             # state_dict, config, _ = load_gguf_weight(str(self.model_path))
@@ -149,7 +150,7 @@ def _hf_read_client_weight(self, start_idx: int, end_idx: int):
         return state_dict
 
 
-def load_client_model(start_idx: int, end_idx: int, comm: BaseCommunicator, model_path: str):
+def load_client_model(start_idx: int, end_idx: int, comm: BaseCommunicator, model_path: str) -> Any:
     weight_manager = WeightManager(model_path)
     config = weight_manager.config
 
@@ -175,7 +176,7 @@ def load_client_model(start_idx: int, end_idx: int, comm: BaseCommunicator, mode
     return model
 
 
-def load_master_model(model_path: str) -> Tuple[LLMGenerator, TokenizerUtils]:
+def load_master_model(model_path: str) -> Any:
     weight_manager = WeightManager(model_path)
     state_dict = weight_manager.read_master_weight()
     if weight_manager.arch not in MODEL_REGISTER:
@@ -190,4 +191,5 @@ def load_master_model(model_path: str) -> Tuple[LLMGenerator, TokenizerUtils]:
         kwargs.update({"quantization_level": weight_manager.config.quantization_level})
 
     model = MY_CausalLM_CLASS.from_pretrained(weight_manager.config, state_dict, **kwargs)
-    return model, weight_manager.tok
+    model.tok = weight_manager.tok
+    return model
diff --git a/tllm/entrypoints/api_server.py b/tllm/entrypoints/api_server.py
index 860f422..8235969 100644
--- a/tllm/entrypoints/api_server.py
+++ b/tllm/entrypoints/api_server.py
@@ -13,8 +13,8 @@
 from tllm.entrypoints.image_server.server_image import ImageServing
 from tllm.entrypoints.protocol import ChatCompletionRequest, ChatCompletionResponse
 from tllm.entrypoints.server_chat import OpenAIServing
-from tllm.entrypoints.utils import load_master_config, parse_master_args, serve_http
-from tllm.network.helper import get_free_port
+from tllm.entrypoints.utils import parse_master_args, serve_http, update_master_args
+from tllm.generate import ImageGenerator, LLMGenerator
 from tllm.network.manager import LocalRPCManager, RPCManager, WebsocketManager
 from tllm.schemas import InitModelRequest, InitModelResponse, RegisterClientRequest, RegisterClientResponse
 from tllm.singleton_logger import SingletonLogger
@@ -188,7 +188,7 @@ async def init_engine(args):
     logger = SingletonLogger.setup_master_logger()
 
     s1 = time.time()
-    model, tok = load_master_model(args.model_path)
+    model = load_master_model(args.model_path)
     total_layers = model.num_layers  # 必须要有层数
 
     global ws_manager, rpc_manager
@@ -197,17 +197,12 @@ async def init_engine(args):
     rpc_manager, master_handler = await init_rpc_manager(
         args.model_path, ws_manager.client_size, args.grpc_port, args.is_local
     )
-
+    logger.info(f"Engine init Cost Time: {time.time() - s1:.4f}s. Total Layers: {total_layers}")
     if args.is_image:
-        from tllm.generate import ImageGenerator
-
-        generator = ImageGenerator(rpc_manager, model, tok)
+        generator = ImageGenerator(rpc_manager, model)
     else:
-        from tllm.generate import LLMGenerator
-
-        generator = LLMGenerator(rpc_manager, model, tok)
+        generator = LLMGenerator(rpc_manager, model)
     engine = AsyncEngine(generator)
-    logger.info(f"Engine init Cost Time: {time.time() - s1:.4f}s. Total Layers: {total_layers}")
 
     await engine.start()
     return engine
@@ -215,12 +210,7 @@ async def init_engine(args):
 
 async def run_server(args) -> None:
     SingletonLogger.set_level("DEBUG" if args.is_debug else "INFO")
-
-    if args.grpc_port is None:
-        args.grpc_port = get_free_port()
-
-    if args.config:
-        args = load_master_config(args.config, args)
+    args = update_master_args(args)
 
     engine = await init_engine(args)
     app = await init_app(engine, args)
diff --git a/tllm/entrypoints/handler/handler.py b/tllm/entrypoints/handler/handler.py
index eb1f252..58a70ee 100644
--- a/tllm/entrypoints/handler/handler.py
+++ b/tllm/entrypoints/handler/handler.py
@@ -9,8 +9,7 @@
 from tllm import GRPC_OPTIONS
 from tllm.commons.communicator import BaseCommunicator, Communicator
 from tllm.commons.convert import Convertor
-from tllm.entrypoints.utils import load_handler_config, parse_handler_args
-from tllm.network.helper import get_free_port, get_ips
+from tllm.entrypoints.utils import parse_handler_args, update_handler_args
 from tllm.network.http_client import HTTPClient
 from tllm.network.manager import MasterRPCManager
 from tllm.rpc import schemas_pb2, schemas_pb2_grpc
@@ -112,10 +111,10 @@ async def Forward(
         """
         @param request: ForwardRequest
             hidden_states: bytes
-            uuid: str
-            seq_len: int
+            uuid: List[str]
+            seq_len: List[int]
         """
-        if not hasattr(self.http_client, "model") and self.http_client is None:
+        if hasattr(self.http_client, "model") is None:
             return schemas_pb2.ForwardResponse(msg="Model not initialized", status=400)
         if hasattr(self.manager, "master_stub") is None:
             return schemas_pb2.ForwardResponse(msg="Manager not initialized", status=400)
@@ -167,27 +166,13 @@ async def Health(self, request, context):
 
 
 async def run(args):
+    SingletonLogger.set_level("DEBUG" if args.is_debug else "INFO")
+    args, ip_addr_list = update_handler_args(args)
     comm = Communicator()
-    if args.grpc_port is None:
-        args.grpc_port = get_free_port()
-    if args.config is not None:
-        if args.client_idx is None:
-            raise ValueError("client_idx is required when config is provided")
-        args = load_handler_config(args.config, args, args.client_idx)
-
-    ip_addr_list = get_ips()
-    # 如果指定了 hostname, 则只使用指定的 hostname
-    if args.hostname is not None and isinstance(args.hostname, str):
-        ip_addr_list = [args.hostname]
 
-    if len(ip_addr_list) == 0:
-        raise ValueError("No available ip address")
-
-    SingletonLogger.set_level("DEBUG" if args.is_debug else "INFO")
     logger = SingletonLogger.setup_handler_logger(f"handler-{args.grpc_port}")
 
     rpc_servicer = RPCHandler(comm, logger, args.master_addr)
-
     try:
         if comm.rank == 0:
             await rpc_servicer.start(ip_addr_list, args.grpc_port)
diff --git a/tllm/entrypoints/handler/master_handler.py b/tllm/entrypoints/handler/master_handler.py
index f112ce8..927a0cc 100644
--- a/tllm/entrypoints/handler/master_handler.py
+++ b/tllm/entrypoints/handler/master_handler.py
@@ -27,8 +27,6 @@ def update(self, count: int, result: Tuple[int, float]):
 
 
 class PendingRequests:
-    """管理待处理的请求"""
-
     def __init__(self):
         self._forward_requests: Dict[str, asyncio.Future] = {}
         self._status_requests: Dict[str, StatusTracker] = {}
@@ -97,7 +95,6 @@ async def Forward(
     ) -> schemas_pb2.ForwardResponse:
         """处理从最后一个节点返回的结果"""
         request_id = "-".join(x for x in list(request.uuid))
-        # self.logger.debug(f"Received result request id: {request_id}")
 
         try:
             self.pending_requests.complete_forward_request(request_id, request.hidden_states)
@@ -113,7 +110,6 @@ async def ImageForward(
     ) -> schemas_pb2.ForwardResponse:
         """处理从最后一个节点返回的结果"""
         request_id = "-".join(x for x in list(request.uuid))
-        # self.logger.debug(f"Received result request id: {request_id}")
 
         try:
             self.pending_requests.complete_forward_request(request_id, request.hidden_states)
diff --git a/tllm/entrypoints/utils.py b/tllm/entrypoints/utils.py
index 4d97ab8..95910b3 100644
--- a/tllm/entrypoints/utils.py
+++ b/tllm/entrypoints/utils.py
@@ -7,13 +7,14 @@
 from fastapi import FastAPI
 import uvicorn
 
+from tllm.network.helper import get_free_port, get_ips
 from tllm.singleton_logger import SingletonLogger
 
 
 def parse_master_args():
     parser = argparse.ArgumentParser()
-    parser.add_argument("--hostname", type=str, required=True)
     parser.add_argument("--model_path", type=str, required=True)
+    parser.add_argument("--hostname", type=str, required=False)
     parser.add_argument("--grpc_port", type=int, default=None)
     parser.add_argument("--http_port", type=int, default=8022)
     parser.add_argument("--config", type=str, default=None, help="config file path")
@@ -42,23 +43,43 @@ def parse_handler_args():
     return parser.parse_args()
 
 
-def load_master_config(config_path: str, args):
-    with open(config_path, "r") as f:
-        config = json.load(f)
-    args.hostname = config["server"]["hostname"]
-    args.http_port = config["server"]["http_port"]
-    args.grpc_port = config["server"]["grpc_port"]
-    args.client_size = len(config["client"])
+def update_master_args(args):
+    if args.grpc_port is None:
+        args.grpc_port = get_free_port()
+
+    if args.config is not None:
+        with open(args.config, "r") as f:
+            config = json.load(f)
+        args.hostname = config["server"]["hostname"]
+        args.http_port = config["server"]["http_port"]
+        args.grpc_port = config["server"]["grpc_port"]
+        args.client_size = len(config["client"])
     return args
 
 
-def load_handler_config(config_path: str, args, idx: int):
-    with open(config_path, "r") as f:
-        config = json.load(f)
-    args.grpc_port = config["client"][idx]["grpc_port"]
-    args.hostname = config["client"][idx]["hostname"]
-    args.master_addr = f'http://{config["server"]["hostname"]}:{config["server"]["http_port"]}'
-    return args
+def update_handler_args(args):
+    if args.grpc_port is None:
+        args.grpc_port = get_free_port()
+
+    if args.config is not None:
+        if args.client_idx is None:
+            raise ValueError("client_idx is required when config is provided")
+        with open(args.config_path, "r") as f:
+            config = json.load(f)
+        args.grpc_port = config["client"][args.client_idx]["grpc_port"]
+        args.hostname = config["client"][args.client_idx]["hostname"]
+        args.master_addr = f'http://{config["server"]["hostname"]}:{config["server"]["http_port"]}'
+
+    # 如果指定了 hostname, 则只使用指定的 hostname
+    if args.hostname is not None and isinstance(args.hostname, str):
+        ip_addr_list = [args.hostname]
+    else:
+        ip_addr_list = get_ips()
+
+    if len(ip_addr_list) == 0:
+        raise ValueError("No available ip address")
+
+    return args, ip_addr_list
 
 
 async def serve_http(app: FastAPI, **uvicorn_kwargs: Dict):
diff --git a/tllm/generate/image_generator.py b/tllm/generate/image_generator.py
index e24bd1d..6149e8b 100644
--- a/tllm/generate/image_generator.py
+++ b/tllm/generate/image_generator.py
@@ -2,16 +2,17 @@
 from typing import List
 
 from tllm.img_helper import pil_image_to_base64
+from tllm.network.manager.rpc_manager import RPCManager
 from tllm.schemas import ForwardResult, ImageRequestData
 from tllm.singleton_logger import SingletonLogger
 
 
 class ImageGenerator:
-    def __init__(self, manager: "RPCManager", model, tok=None) -> None:
+    def __init__(self, manager: RPCManager, model) -> None:
         self.manager = manager
         self.model = model
         self.logger = SingletonLogger.setup_master_logger()
-        self.tok = tok
+        self.tok = None
 
     async def forward(self, image_request: ImageRequestData) -> ForwardResult:
         height, width = image_request.runtime_config.height, image_request.runtime_config.width
diff --git a/tllm/generate/llm_generator.py b/tllm/generate/llm_generator.py
index b7837a5..1f9448d 100644
--- a/tllm/generate/llm_generator.py
+++ b/tllm/generate/llm_generator.py
@@ -4,8 +4,10 @@
 import numpy as np
 from transformers import AutoImageProcessor, AutoProcessor
 
+from tllm.generate.token_utils import TokenizerUtils
 from tllm.models.register import sampling_func
 from tllm.models.utils import is_generate_end
+from tllm.network.manager import RPCManager
 from tllm.schemas import MIX_TENSOR, ForwardResult, SeqInput, SequenceRequestData
 from tllm.singleton_logger import SingletonLogger
 
@@ -77,11 +79,11 @@ def process_mm_input(
 
 
 class LLMGenerator:
-    def __init__(self, manager: "RPCManager", model, tok: "TokenizerUtils") -> None:
+    def __init__(self, manager: RPCManager, model) -> None:
         self.manager = manager
         self.logger = SingletonLogger.setup_master_logger()
         self.model = model
-        self.tok = tok
+        self.tok: TokenizerUtils = model.tok
         self.processor = getattr(model, "processor", None)
         self.mm_config = getattr(model, "mm_config", None)
         if self.processor is not None:
diff --git a/tllm/models/register.py b/tllm/models/register.py
index 7387ccf..12a7b65 100644
--- a/tllm/models/register.py
+++ b/tllm/models/register.py
@@ -38,7 +38,8 @@
     from tllm.models.torch.qwen import HFQwen2ForCausalLM, HFQwen2Model
     from tllm.models.torch.qwen_vl import HFQwen2VLForConditionalGeneration
 
-    sampling_func = greedy_decode
     MODEL_REGISTER.update({"LlamaForCausalLM": (HFLlamaForCausalLM, HFLlamaModel)})
     MODEL_REGISTER.update({"Qwen2ForCausalLM": (HFQwen2ForCausalLM, HFQwen2Model)})
     MODEL_REGISTER.update({"Qwen2VLForConditionalGeneration": (HFQwen2VLForConditionalGeneration, HFQwen2Model)})
+
+    sampling_func = greedy_decode
diff --git a/tllm/network/manager/master_manager.py b/tllm/network/manager/master_manager.py
index 0fbf2d4..30bb77e 100644
--- a/tllm/network/manager/master_manager.py
+++ b/tllm/network/manager/master_manager.py
@@ -8,6 +8,9 @@
 
 class MasterRPCManager:
     # 向 Master 发送 gRPC 请求
+    # 每个节点需要发送处理完之后的「结果」和「状态」
+    # 「结果」发往下一个 PP，如果已经是最后一个 PP，则发往 Master 节点
+    # 「状态」发往 Master 节点
     def __init__(self, grpc_options: List[Tuple[str, int]]):
         self.grpc_options = grpc_options
         self.master_stub = None
@@ -36,7 +39,6 @@ async def rpc_image_func(
             "uuid": request.uuid,
             "hidden_states": hidden_states,
             # "text_embeddings": request.text_embeddings,
-            # "image_rotary_emb": request.image_rotary_emb,
         }
         status_request = {"uuid": request.uuid, "pp_idx": self.pp_idx, "cost_time": cost_time}
         await self.master_stub.Status(schemas_pb2.StatusRequest(**status_request))
diff --git a/tllm/network/manager/rpc_manager.py b/tllm/network/manager/rpc_manager.py
index f648402..59387fb 100644
--- a/tllm/network/manager/rpc_manager.py
+++ b/tllm/network/manager/rpc_manager.py
@@ -81,7 +81,6 @@ async def check_single_client(index: int) -> Tuple[int, bool]:
 
         tasks = [check_single_client(i) for i in range(self.client_size)]
 
-        # 等待所有任务完成，返回结果列表
         results = await asyncio.gather(*tasks, return_exceptions=False)
 
         # 检查结果，如果有健康检查失败，返回对应的索引