[hotfix] Suport extra_kwargs in ShardConfig (#5031)

* [refactor]: replace inference args with extra_kwargs in ShardConfig

* modify shardconfig

* polish code

* fix policy bug in llama

* fix bug in auto policy

* remove setattr in ShardConfig

colossalai/inference/dynamic_batching/ray_dist_init.py

@@ -67,7 +67,9 @@ class Worker:
         self.model = AutoModelForCausalLM.from_pretrained(
             self.model_path, pad_token_id=self.tokenizer.pad_token_id, torch_dtype=torch.float16
         )
-        shard_config = ShardConfig(enable_tensor_parallelism=True if world_size > 1 else False, inference_only=True)
+        shard_config = ShardConfig(
+            enable_tensor_parallelism=True if world_size > 1 else False, extra_kwargs={"inference_only": True}
+        )
         self.infer_engine = TPInferEngine(
             self.model, shard_config, self.max_batch_size, self.max_input_len, self.max_output_len
         )

colossalai/inference/hybridengine/polices/llama.py

@@ -45,8 +45,7 @@ class LlamaModelInferPolicy(LlamaForCausalLMPolicy):
 
     def module_policy(self):
         policy = super().module_policy()
-
-        if self.shard_config.inference_gptq:
+        if self.shard_config.extra_kwargs.get("inference_gptq", False):
             from colossalai.inference.quant.gptq.cai_gptq import ColCaiQuantLinear, RowCaiQuantLinear
 
             decoder_attribute_replacement = {

colossalai/inference/tensor_parallel/engine.py

@@ -44,7 +44,7 @@ class TPInferEngine:
         >>> # define model and shard config for your inference
         >>> model = ...
         >>> generate_kwargs = ...
-        >>> shard_config = ShardConfig(enable_tensor_parallelism=True, inference_only=True)
+        >>> shard_config = ShardConfig(enable_tensor_parallelism=True, extra_kwargs={"inference_only": True})
         >>> infer_engine = TPInferEngine(model, shard_config, MAX_BATCH_SIZE, MAX_INPUT_LEN, MAX_OUTPUT_LEN)
         >>> outputs = infer_engine.generate(input_ids, **generate_kwargs)
     """
@@ -181,7 +181,7 @@ class TPInferEngine:
         In further generation, use the sharded model instead of original model.
         """
         # NOTE we will change to use an inference config later with additional attrs we want
-        assert self.shard_config.inference_only is True
+        assert self.shard_config.extra_kwargs["inference_only"] is True
         shardformer = ShardFormer(shard_config=self.shard_config)
         self._prepare_with_shard_config(shard_config=self.shard_config)
         self._shard_model_by(shardformer, model)
@@ -203,10 +203,10 @@ class TPInferEngine:
                 enable_all_optimization=False,
                 enable_flash_attention=False,
                 enable_jit_fused=False,
-                inference_only=True,
+                extra_kwargs={"inference_only": True},
             )
         else:
-            shard_config.inference_only = True
+            shard_config.extra_kwargs = {"inference_only": True}
             shard_config.pipeline_stage_manager = None
             if shard_config.enable_tensor_parallelism:
                 self.tp_size = shard_config.tensor_parallel_size
@@ -221,13 +221,11 @@ class TPInferEngine:
         ), "Discrepancy between the tp size of TPInferEngine and the tp size of shard config"
         model_name = model.__class__.__name__
         assert model_name in self.supported_models, f"Unsupported model cls {model_name} for TP inference."
-
-        model = model.model if self.shard_config.inference_gptq else model
+        if self.shard_config.extra_kwargs.get("inference_gptq", False):
+            model = model.model
         policy = get_autopolicy(model, shard_config=self.shard_config)
-
         self.model, _ = shardformer.optimize(model, policy)
-
-        if self.shard_config.inference_gptq:
+        if self.shard_config.extra_kwargs.get("inference_gptq", False):
             self._post_init_gptq_buffer(self.model)
 
         self.model = self.model.cuda()

colossalai/inference/tensor_parallel/policies/bloom.py

@@ -4,7 +4,6 @@ import torch
 from torch.nn import LayerNorm
 
 import colossalai.shardformer.layer as col_nn
-from colossalai.shardformer.modeling.bloom import build_bloom_alibi_tensor_fn
 from colossalai.shardformer.policies.base_policy import ModulePolicyDescription, SubModuleReplacementDescription
 from colossalai.shardformer.policies.bloom import BloomForCausalLMPolicy
 
@@ -38,35 +37,39 @@ class BloomModelInferPolicy(BloomForCausalLMPolicy):
         from transformers.models.bloom.modeling_bloom import BloomAttention, BloomBlock, BloomForCausalLM, BloomModel
 
         policy = super().module_policy()
-        if self.shard_config.inference_gptq:
+
+        if self.shard_config.extra_kwargs.get("inference_gptq", False):
             from colossalai.inference.quant.gptq.cai_gptq import ColCaiQuantLinear, RowCaiQuantLinear
-            policy[BloomBlock] = ModulePolicyDescription(attribute_replacement={
-                "self_attention.hidden_size": self.model.config.hidden_size // self.shard_config.tensor_parallel_size,
-                "self_attention.split_size": self.model.config.hidden_size // self.shard_config.tensor_parallel_size,
-                "self_attention.num_heads": self.model.config.n_head // self.shard_config.tensor_parallel_size,
-            },
-                                                         sub_module_replacement=[
-                                                             SubModuleReplacementDescription(
-                                                                 suffix="self_attention.query_key_value",
-                                                                 target_module=ColCaiQuantLinear,
-                                                                 kwargs={'split_num': 3}),
-                                                             SubModuleReplacementDescription(
-                                                                 suffix="self_attention.dense",
-                                                                 target_module=RowCaiQuantLinear,
-                                                                 kwargs={'split_num': 1}),
-                                                             SubModuleReplacementDescription(
-                                                                 suffix="self_attention.attention_dropout",
-                                                                 target_module=col_nn.DropoutForParallelInput,
-                                                             ),
-                                                             SubModuleReplacementDescription(
-                                                                 suffix="mlp.dense_h_to_4h",
-                                                                 target_module=ColCaiQuantLinear,
-                                                                 kwargs={'split_num': 1}),
-                                                             SubModuleReplacementDescription(
-                                                                 suffix="mlp.dense_4h_to_h",
-                                                                 target_module=RowCaiQuantLinear,
-                                                                 kwargs={'split_num': 1}),
-                                                         ])
+
+            policy[BloomBlock] = ModulePolicyDescription(
+                attribute_replacement={
+                    "self_attention.hidden_size": self.model.config.hidden_size
+                    // self.shard_config.tensor_parallel_size,
+                    "self_attention.split_size": self.model.config.hidden_size
+                    // self.shard_config.tensor_parallel_size,
+                    "self_attention.num_heads": self.model.config.n_head // self.shard_config.tensor_parallel_size,
+                },
+                sub_module_replacement=[
+                    SubModuleReplacementDescription(
+                        suffix="self_attention.query_key_value",
+                        target_module=ColCaiQuantLinear,
+                        kwargs={"split_num": 3},
+                    ),
+                    SubModuleReplacementDescription(
+                        suffix="self_attention.dense", target_module=RowCaiQuantLinear, kwargs={"split_num": 1}
+                    ),
+                    SubModuleReplacementDescription(
+                        suffix="self_attention.attention_dropout",
+                        target_module=col_nn.DropoutForParallelInput,
+                    ),
+                    SubModuleReplacementDescription(
+                        suffix="mlp.dense_h_to_4h", target_module=ColCaiQuantLinear, kwargs={"split_num": 1}
+                    ),
+                    SubModuleReplacementDescription(
+                        suffix="mlp.dense_4h_to_h", target_module=RowCaiQuantLinear, kwargs={"split_num": 1}
+                    ),
+                ],
+            )
         # NOTE set inference mode to shard config
         self.shard_config._infer()
 

colossalai/inference/tensor_parallel/policies/llama.py

@@ -13,6 +13,7 @@ from ..modeling.llama import LlamaInferenceForwards
 
 try:
     from lightllm.models.llama.triton_kernel.rmsnorm import rmsnorm_forward as lightllm_rmsnorm_forward
+
     HAS_TRITON_RMSNORM = True
 except:
     print("you should install triton from https://github.com/openai/triton")
@@ -21,6 +22,7 @@ except:
 
 def get_triton_rmsnorm_forward():
     if HAS_TRITON_RMSNORM:
+
         def _triton_rmsnorm_forward(self: LlamaRMSNorm, hidden_states: torch.Tensor):
             return lightllm_rmsnorm_forward(hidden_states, self.weight.data, self.variance_epsilon)
 
@@ -36,7 +38,7 @@ class LlamaModelInferPolicy(LlamaForCausalLMPolicy):
     def module_policy(self):
         policy = super().module_policy()
 
-        if self.shard_config.inference_gptq:
+        if self.shard_config.extra_kwargs.get("inference_gptq", False):
             from colossalai.inference.quant.gptq.cai_gptq import ColCaiQuantLinear, RowCaiQuantLinear
 
             decoder_attribute_replacement = {

colossalai/shardformer/README.md

@@ -81,8 +81,6 @@ Following are the description `ShardConfig`'s arguments:
 
 -  `enable_all_optimization`: Whether to turn on all optimization tools including `fused normalizaion`, `flash attention`, `JIT fused operators`, `sequence parallelism` and `sequence overlap`. Defaults to False.
 
-- `inference_only`: Whether only doing forward passing. Defaults to False.
-
 ### Write your own policy
 
 If you have a custom model, you can also use Shardformer to parallelize it by writing your own sharding policy. More information about the sharding policy can be found in [API Design](#-api-design).
@@ -185,7 +183,6 @@ class ShardConfig:
 
     # Some possible future config fields
     tensor_parallel_mode: Choice['1d', '2d', '2.5d', '3d'] # support different tensor parallel mode
-    inference_only: bool # only inject inference-suitable sharding policy
     use_flash_attention: bool # whether to use flash attention to speed up attention
 ```
 

colossalai/shardformer/policies/auto_policy.py

@@ -209,7 +209,8 @@ def get_autopolicy(model: nn.Module, shard_config: ShardConfig = None) -> Policy
         :class:`Policy`: The auto policy for the model
     """
     full_name = _fullname(model)
-    if shard_config.inference_only:
+    inference_only = shard_config.extra_kwargs.get("inference_only", False)
+    if inference_only:
         policy_location = _INFER_POLICY_LIST.get(full_name, None)
     else:
         policy_location = _POLICY_LIST.get(full_name, None)
@@ -219,5 +220,5 @@ def get_autopolicy(model: nn.Module, shard_config: ShardConfig = None) -> Policy
             f"Auto policy for {model.__class__.__qualname__} is not implemented\n. Supported models are {list(_POLICY_LIST.keys())} and {list(_INFER_POLICY_LIST.keys())}"
         )
     else:
-        policy = import_policy(policy_location, shard_config.inference_only)
+        policy = import_policy(policy_location, inference_only)
     return policy()

colossalai/shardformer/shard/shard_config.py

@@ -1,5 +1,5 @@
-from dataclasses import dataclass
-from typing import Optional
+from dataclasses import dataclass, field
+from typing import Dict, Optional
 
 import torch.distributed as dist
 from torch.distributed import ProcessGroup
@@ -24,7 +24,6 @@ class ShardConfig:
         enable_sequence_parallelism (bool): Whether to turn on sequence parallelism, which partitions non-tensor-parallel regions along the sequence dimension. Defaults to False.
         enable_sequence_overlap (bool): Whether to turn on sequence overlap, wheich overlap the computation and communication in sequence parallelism. It can only be used when enable_sequence_parallelism is True. Defaults to False.
         enable_all_optimization (bool): Whether to turn on all optimization tools including 'fused normalizaion', 'flash attention', 'JIT fused operators', 'sequence parallelism' and 'sequence overlap'. Defaults to False.
-        inference_only (bool): Whether only doing forward passing. Defaults to False.
     """
     tensor_parallel_process_group: Optional[ProcessGroup] = None
     pipeline_stage_manager: Optional[PipelineStageManager] = None
@@ -33,10 +32,9 @@ class ShardConfig:
     enable_flash_attention: bool = False
     enable_jit_fused: bool = False
     enable_all_optimization: bool = False
-    inference_only: bool = False
-    inference_gptq: bool = False
     enable_sequence_parallelism: bool = False
     enable_sequence_overlap: bool = False
+    extra_kwargs: Dict[str, bool] = field(default_factory=dict)
     # pipeline_parallel_size: int
     # data_parallel_size: int
     # tensor_parallel_mode: Literal['1d', '2d', '2.5d', '3d']
@@ -77,4 +75,3 @@ class ShardConfig:
         Set default params for inference.
         """
         # assert self.pipeline_stage_manager is None, "pipeline parallelism is not supported in inference for now"
-        pass

examples/inference/bench_bloom.py

@@ -28,7 +28,9 @@ def bench_bloom(args):
 
     # init TPInferEngine and shard the original model
     # To benchmark torch original, comment out the line of optimizing model
-    shard_config = ShardConfig(enable_tensor_parallelism=True if args.tp_size > 1 else False, inference_only=True)
+    shard_config = ShardConfig(
+        enable_tensor_parallelism=True if args.tp_size > 1 else False, extra_kwargs={"inference_only": True}
+    )
     infer_engine = TPInferEngine(model, shard_config, max_batch_size, max_input_len, max_output_len)
 
     # prepare data for generation

examples/inference/bench_chatglm2.py

@@ -30,7 +30,9 @@ def run_chatglm2_test(args):
     model = model.half()
     model.config
 
-    shard_config = ShardConfig(enable_tensor_parallelism=True if args.tp_size > 1 else False, inference_only=True)
+    shard_config = ShardConfig(
+        enable_tensor_parallelism=True if args.tp_size > 1 else False, extra_kwargs={"inference_only": True}
+    )
     infer_engine = TPInferEngine(model, shard_config, max_batch_size, max_input_len, max_output_len)
 
     generate_kwargs = dict(max_new_tokens=1, do_sample=False)

examples/inference/bench_llama.py

@@ -30,7 +30,9 @@ def run_llama_test(args):
     model = model.half()
     model.config
 
-    shard_config = ShardConfig(enable_tensor_parallelism=True if args.tp_size > 1 else False, inference_only=True)
+    shard_config = ShardConfig(
+        enable_tensor_parallelism=True if args.tp_size > 1 else False, extra_kwargs={"inference_only": True}
+    )
     infer_engine = TPInferEngine(model, shard_config, max_batch_size, max_input_len, max_output_len)
 
     generate_kwargs = dict(max_new_tokens=1, do_sample=False)

examples/inference/gptq_bloom.py

@@ -34,7 +34,9 @@ def bench_bloom(args):
     model = model.half()
 
     model_config = model.config
-    shard_config = ShardConfig(enable_tensor_parallelism=True if args.tp_size > 1 else False, inference_only=True)
+    shard_config = ShardConfig(
+        enable_tensor_parallelism=True if args.tp_size > 1 else False, extra_kwargs={"inference_only": True}
+    )
     infer_engine = TPInferEngine(model, shard_config, max_batch_size, max_input_len, max_output_len)
     generate_kwargs = dict(max_new_tokens=max_output_len, do_sample=False)
 
@@ -46,7 +48,8 @@ def bench_bloom(args):
     # init TPInferEngine and shard the original model
     # To benchmark torch original, comment out the line of optimizing model
     shard_config = ShardConfig(
-        enable_tensor_parallelism=True if args.tp_size > 1 else False, inference_only=True, inference_gptq=True
+        enable_tensor_parallelism=True if args.tp_size > 1 else False,
+        extra_kwargs={"inference_only": True, "inference_gptq": True},
     )
     infer_engine = TPInferEngine(model, shard_config, max_batch_size, max_input_len, max_output_len)
 

examples/inference/gptq_llama.py

@@ -33,7 +33,8 @@ def run_llama_test(args):
 
     model_config = model.config
     shard_config = ShardConfig(
-        enable_tensor_parallelism=True if args.tp_size > 1 else False, inference_only=True, inference_gptq=True
+        enable_tensor_parallelism=True if args.tp_size > 1 else False,
+        extra_kwargs={"inference_only": True, "inference_gptq": True},
     )
     infer_engine = TPInferEngine(model, shard_config, max_batch_size, max_input_len, max_output_len)
 

examples/inference/serving/ray_serve/Colossal_Inference_rayserve.py

@@ -68,7 +68,9 @@ class Worker:
             self.model_path, pad_token_id=self.tokenizer.pad_token_id, torch_dtype=torch.float16
         )
 
-        shard_config = ShardConfig(enable_tensor_parallelism=True if world_size > 1 else False, inference_only=True)
+        shard_config = ShardConfig(
+            enable_tensor_parallelism=True if world_size > 1 else False, extra_kwargs={"inference_only": True}
+        )
         self.infer_engine = TPInferEngine(
             self.model, shard_config, self.max_batch_size, self.max_input_len, self.max_output_len
         )

examples/inference/serving/torch_serve/Colossal_Inference_Handler.py

@@ -100,7 +100,9 @@ class ColossalInferenceHandler(BaseHandler, ABC):
 
         colossalai.launch(config={}, rank=rank, world_size=world_size, host=host, port=port, backend="nccl")
         logger.info("Initializing TPInferEngine ...")
-        shard_config = ShardConfig(enable_tensor_parallelism=True if self.tp_size > 1 else False, inference_only=True)
+        shard_config = ShardConfig(
+            enable_tensor_parallelism=True if self.tp_size > 1 else False, extra_kwargs={"inference_only": True}
+        )
         self.infer_engine = TPInferEngine(
             self.model, shard_config, self.max_batch_size, self.max_input_len, self.max_output_len
         )

tests/test_infer/_utils.py

@@ -19,7 +19,7 @@ def build_model(
         enable_tensor_parallelism=enable_tensor_parallelism,
         enable_flash_attention=enable_flash_attention,
         enable_jit_fused=enable_jit_fused,
-        inference_only=True,
+        extra_kwargs={"inference_only": True},
     )
     model_copy = copy.deepcopy(org_model)
     shard_former = ShardFormer(shard_config=shard_config)

tests/test_infer/test_bloom_infer.py

@@ -11,11 +11,10 @@ from colossalai.shardformer import ShardConfig
 from colossalai.testing import clear_cache_before_run, parameterize, rerun_if_address_is_in_use, spawn
 
 try:
-    import lightllm 
     HAS_LIGHTLLM_KERNEL = True
 except:
     HAS_LIGHTLLM_KERNEL = False
-    
+
 TP_SIZE = 2
 MAX_BATCH_SIZE = 4
 MAX_INPUT_LEN = 16
@@ -38,7 +37,7 @@ def run(test_config):
     model = model.half()
 
     shard_config = ShardConfig(
-        enable_tensor_parallelism=True if test_config["tp_size"] > 1 else False, inference_only=True
+        enable_tensor_parallelism=True if test_config["tp_size"] > 1 else False, extra_kwargs={"inference_only": True}
     )
     infer_engine = TPInferEngine(model, shard_config, MAX_BATCH_SIZE, MAX_INPUT_LEN, MAX_OUTPUT_LEN)
     generate_kwargs = dict(max_new_tokens=MAX_OUTPUT_LEN, do_sample=False)
@@ -58,7 +57,10 @@ def check_bloom(rank, world_size, port):
     run()
 
 
-@pytest.mark.skipif(not CUDA_SUPPORT or not HAS_LIGHTLLM_KERNEL, reason="kv-cache manager engine requires cuda version to be higher than 11.5")
+@pytest.mark.skipif(
+    not CUDA_SUPPORT or not HAS_LIGHTLLM_KERNEL,
+    reason="kv-cache manager engine requires cuda version to be higher than 11.5",
+)
 @pytest.mark.dist
 @rerun_if_address_is_in_use()
 @clear_cache_before_run()

tests/test_infer/test_chatglm2_infer.py

@@ -49,7 +49,7 @@ def run_chatglm2_test(test_config):
     model = model.half()
 
     shard_config = ShardConfig(
-        enable_tensor_parallelism=True if test_config["tp_size"] > 1 else False, inference_only=True
+        enable_tensor_parallelism=True if test_config["tp_size"] > 1 else False, extra_kwargs={"inference_only": True}
     )
     infer_engine = TPInferEngine(model, shard_config, BATCH_SIZE, MAX_INPUT_LEN, MAX_OUTPUT_LEN)
     generate_kwargs = dict(max_new_tokens=MAX_OUTPUT_LEN, do_sample=False)

tests/test_infer/test_dynamic_batching/test_dynamic_batching_manager.py

@@ -34,7 +34,7 @@ def run():
     model = LlamaForCausalLM(llama_config)
     model = model.half()
 
-    shard_config = ShardConfig(enable_tensor_parallelism=False, inference_only=True)
+    shard_config = ShardConfig(enable_tensor_parallelism=False, extra_kwargs={"inference_only": True})
     infer_engine = TPInferEngine(model, shard_config, BATCH_SIZE, MAX_INPUT_LEN, MAX_OUTPUT_LEN)
 
     dynamic_batch_manager = DynamicBatchManager(

tests/test_infer/test_dynamic_batching/test_offline_dynamic_batching.py

@@ -57,7 +57,9 @@ def run():
     model = LlamaForCausalLM(llama_config)
     model = model.half()
 
-    shard_config = ShardConfig(enable_tensor_parallelism=True if TP_SIZE > 1 else False, inference_only=True)
+    shard_config = ShardConfig(
+        enable_tensor_parallelism=True if TP_SIZE > 1 else False, extra_kwargs={"inference_only": True}
+    )
 
     infer_engine = TPInferEngine(model, shard_config, MAX_BATCH_SIZE, MAX_INPUT_LEN, MAX_OUTPUT_LEN)
     batch_manager = start_dynamic_batching(arg, tp_engine=infer_engine, waiting_req_list=waiting_list)

tests/test_infer/test_infer_engine.py

@@ -36,7 +36,7 @@ def run(test_config):
 
     # 1. check TPInferEngine init and model optimization
     shard_config = ShardConfig(
-        enable_tensor_parallelism=True if test_config["tp_size"] > 1 else False, inference_only=True
+        enable_tensor_parallelism=True if test_config["tp_size"] > 1 else False, extra_kwargs={"inference_only": True}
     )
     infer_engine = TPInferEngine(model, shard_config, MAX_BATCH_SIZE, MAX_INPUT_LEN, MAX_OUTPUT_LEN)
 

tests/test_infer/test_llama2_infer.py

@@ -13,11 +13,10 @@ from colossalai.shardformer import ShardConfig
 from colossalai.testing import clear_cache_before_run, parameterize, rerun_if_address_is_in_use, spawn
 
 try:
-    import lightllm
     HAS_LIGHTLLM_KERNEL = True
 except:
     HAS_LIGHTLLM_KERNEL = False
-    
+
 os.environ["TRANSFORMERS_NO_ADVISORY_WARNINGS"] = "true"
 TPSIZE = 2
 BATCH_SIZE = 8
@@ -43,7 +42,7 @@ def run_llama_test(test_config):
     model = model.half()
 
     shard_config = ShardConfig(
-        enable_tensor_parallelism=True if test_config["tp_size"] > 1 else False, inference_only=True
+        enable_tensor_parallelism=True if test_config["tp_size"] > 1 else False, extra_kwargs={"inference_only": True}
     )
     infer_engine = TPInferEngine(model, shard_config, BATCH_SIZE, MAX_INPUT_LEN, MAX_OUTPUT_LEN)
     generate_kwargs = dict(max_new_tokens=MAX_OUTPUT_LEN, do_sample=False)
@@ -63,7 +62,10 @@ def check_llama(rank, world_size, port):
     run_llama_test()
 
 
-@pytest.mark.skipif(not CUDA_SUPPORT or not HAS_LIGHTLLM_KERNEL, reason="kv-cache manager engine requires cuda version to be higher than 11.5")
+@pytest.mark.skipif(
+    not CUDA_SUPPORT or not HAS_LIGHTLLM_KERNEL,
+    reason="kv-cache manager engine requires cuda version to be higher than 11.5",
+)
 @pytest.mark.dist
 @rerun_if_address_is_in_use()
 @clear_cache_before_run()

tests/test_infer/test_llama_infer.py

@@ -13,7 +13,6 @@ from colossalai.shardformer import ShardConfig
 from colossalai.testing import clear_cache_before_run, parameterize, rerun_if_address_is_in_use, spawn
 
 try:
-    import lightllm
     HAS_LIGHTLLM_KERNEL = True
 except:
     HAS_LIGHTLLM_KERNEL = False
@@ -41,7 +40,7 @@ def run_llama_test(test_config):
     model = model.half()
 
     shard_config = ShardConfig(
-        enable_tensor_parallelism=True if test_config["tp_size"] > 1 else False, inference_only=True
+        enable_tensor_parallelism=True if test_config["tp_size"] > 1 else False, extra_kwargs={"inference_only": True}
     )
     infer_engine = TPInferEngine(model, shard_config, BATCH_SIZE, MAX_INPUT_LEN, MAX_OUTPUT_LEN)
     generate_kwargs = dict(max_new_tokens=MAX_OUTPUT_LEN, do_sample=False)
@@ -61,7 +60,10 @@ def check_llama(rank, world_size, port):
     run_llama_test()
 
 
-@pytest.mark.skipif(not CUDA_SUPPORT or not HAS_LIGHTLLM_KERNEL, reason="kv-cache manager engine requires cuda version to be higher than 11.5")
+@pytest.mark.skipif(
+    not CUDA_SUPPORT or not HAS_LIGHTLLM_KERNEL,
+    reason="kv-cache manager engine requires cuda version to be higher than 11.5",
+)
 @pytest.mark.dist
 @rerun_if_address_is_in_use()
 @clear_cache_before_run()