[V0 deprecation] Remove unreachable model_config.supported_tasks (#25642)

Signed-off-by: wang.yuqi <noooop@126.com>

tests/test_config.py

@@ -97,7 +97,6 @@ def test_auto_task(model_id, expected_runner_type, expected_convert_type,
 
     assert config.runner_type == expected_runner_type
     assert config.convert_type == expected_convert_type
-    assert expected_task in config.supported_tasks
 
 
 # Can remove once --task option is fully deprecated
@@ -120,7 +119,6 @@ def test_score_task(model_id, expected_runner_type, expected_convert_type,
 
     assert config.runner_type == expected_runner_type
     assert config.convert_type == expected_convert_type
-    assert expected_task in config.supported_tasks
 
 
 # Can remove once --task option is fully deprecated
@@ -137,7 +135,6 @@ def test_transcription_task(model_id, expected_runner_type,
 
     assert config.runner_type == expected_runner_type
     assert config.convert_type == expected_convert_type
-    assert expected_task in config.supported_tasks
 
 
 @pytest.mark.parametrize(

vllm/config/model.py

@@ -14,7 +14,6 @@ from pydantic import (ConfigDict, SkipValidation, field_validator,
                       model_validator)
 from pydantic.dataclasses import dataclass
 from safetensors.torch import _TYPES as _SAFETENSORS_TO_TORCH_DTYPE
-from typing_extensions import assert_never
 
 import vllm.envs as envs
 from vllm.config.multimodal import (MMCacheType, MMEncoderTPMode,
@@ -534,9 +533,6 @@ class ModelConfig:
                     f"You can pass `--convert {convert_option} to adapt "
                     "it into a pooling model.")
 
-        self.supported_tasks = self._get_supported_tasks(
-            architectures, self.runner_type, self.convert_type)
-
         # Note: Initialize these attributes early because transformers fallback
         # may fail to load dynamic modules in child processes
         model_info, arch = registry.inspect_model_cls(architectures, self)
@@ -834,27 +830,6 @@ class ModelConfig:
 
         return convert_type
 
-    def _get_supported_generation_tasks(
-        self,
-        architectures: list[str],
-        convert_type: ConvertType,
-    ) -> list[_ResolvedTask]:
-        registry = self.registry
-
-        if registry.is_transcription_only_model(architectures, self):
-            return ["transcription"]
-
-        # TODO: Use get_supported_generation_tasks once V0 is removed
-        supported_tasks = list[_ResolvedTask]()
-        if (registry.is_text_generation_model(architectures, self)
-                or convert_type in _RUNNER_CONVERTS["generate"]):
-            supported_tasks.append("generate")
-
-        if registry.is_transcription_model(architectures, self):
-            supported_tasks.append("transcription")
-
-        return supported_tasks
-
     def _get_default_pooling_task(
         self,
         architectures: list[str],
@@ -872,42 +847,6 @@ class ModelConfig:
 
         return "embed"
 
-    def _get_supported_pooling_tasks(
-        self,
-        architectures: list[str],
-        convert_type: ConvertType,
-    ) -> list[_ResolvedTask]:
-        registry = self.registry
-
-        # TODO: Use get_supported_pooling_tasks once V0 is removed
-        supported_tasks = list[_ResolvedTask]()
-        if (registry.is_pooling_model(architectures, self)
-                or convert_type in _RUNNER_CONVERTS["pooling"]):
-            supported_tasks.append("encode")
-
-            extra_task = (self._get_default_pooling_task(architectures)
-                          if convert_type == "none" else convert_type)
-            supported_tasks.append(extra_task)
-
-        return supported_tasks
-
-    def _get_supported_tasks(
-        self,
-        architectures: list[str],
-        runner_type: RunnerType,
-        convert_type: ConvertType,
-    ) -> list[_ResolvedTask]:
-        if runner_type == "generate":
-            return self._get_supported_generation_tasks(
-                architectures, convert_type)
-        if runner_type == "pooling":
-            return self._get_supported_pooling_tasks(architectures,
-                                                     convert_type)
-        if runner_type == "draft":
-            return ["draft"]
-
-        assert_never(runner_type)
-
     def _parse_quant_hf_config(self, hf_config: PretrainedConfig):
         quant_cfg = getattr(hf_config, "quantization_config", None)
         if quant_cfg is None:

vllm/engine/protocol.py

@@ -16,6 +16,7 @@ from vllm.outputs import CompletionOutput, PoolingRequestOutput, RequestOutput
 from vllm.plugins.io_processors.interface import IOProcessor
 from vllm.pooling_params import PoolingParams
 from vllm.sampling_params import BeamSearchParams, SamplingParams
+from vllm.tasks import SupportedTask
 from vllm.transformers_utils.tokenizer import AnyTokenizer
 from vllm.utils import Device, collect_from_async_generator, random_uuid
 
@@ -326,3 +327,7 @@ class EngineClient(ABC):
                              kwargs: Optional[dict] = None):
         """Perform a collective RPC call to the given path."""
         raise NotImplementedError
+
+    async def get_supported_tasks(self) -> tuple[SupportedTask, ...]:
+        """Get supported tasks"""
+        raise NotImplementedError

vllm/entrypoints/openai/api_server.py

@@ -1609,11 +1609,7 @@ async def init_app_state(
     state.vllm_config = vllm_config
     model_config = vllm_config.model_config
 
-    if envs.VLLM_USE_V1:
-        supported_tasks = await engine_client \
-            .get_supported_tasks()  # type: ignore
-    else:
-        supported_tasks = model_config.supported_tasks
+    supported_tasks = await engine_client.get_supported_tasks()
 
     logger.info("Supported_tasks: %s", supported_tasks)
 

vllm/entrypoints/openai/run_batch.py

@@ -14,7 +14,6 @@ import torch
 from prometheus_client import start_http_server
 from tqdm import tqdm
 
-import vllm.envs as envs
 from vllm.config import VllmConfig
 from vllm.engine.arg_utils import AsyncEngineArgs, optional_type
 from vllm.engine.protocol import EngineClient
@@ -334,12 +333,7 @@ async def run_batch(
 
     model_config = vllm_config.model_config
 
-    if envs.VLLM_USE_V1:
-        supported_tasks = await engine_client \
-            .get_supported_tasks()  # type: ignore
-    else:
-        supported_tasks = model_config.supported_tasks
-
+    supported_tasks = await engine_client.get_supported_tasks()
     logger.info("Supported_tasks: %s", supported_tasks)
 
     # Create the openai serving objects.