[Core] Rename PassConfig flags as per RFC #27995 (#29646)

Signed-off-by: arpitkh101 <arpit5khandelwal@gmail.com>
Co-authored-by: Luka Govedič <ProExpertProg@users.noreply.github.com>
(cherry picked from commit d7284a2604)

benchmarks/benchmark_ngram_proposer.py

@@ -108,7 +108,10 @@ def benchmark_batched_propose(args):
         device_config=DeviceConfig(device=current_platform.device_type),
         parallel_config=ParallelConfig(),
         load_config=LoadConfig(),
-        scheduler_config=SchedulerConfig(),
+        scheduler_config=SchedulerConfig(
+            max_model_len=model_config.max_model_len,
+            is_encoder_decoder=model_config.is_encoder_decoder,
+        ),
     )
 
     # monkey patch vllm.v1.worker.gpu_model_runner.get_pp_group

docker/Dockerfile

@@ -364,7 +364,12 @@ RUN CUDA_VERSION_DASH=$(echo $CUDA_VERSION | cut -d. -f1,2 | tr '.' '-') && \
     cuda-cudart-${CUDA_VERSION_DASH} \
     cuda-nvrtc-${CUDA_VERSION_DASH} \
     cuda-cuobjdump-${CUDA_VERSION_DASH} \
-    libcublas-${CUDA_VERSION_DASH} && \
+    # https://github.com/vllm-project/vllm/issues/29590
+    libcurand-dev-${CUDA_VERSION_DASH} \
+    libcublas-${CUDA_VERSION_DASH} \
+    # Fixes nccl_allocator requiring nccl.h at runtime
+    # https://github.com/vllm-project/vllm/blob/1336a1ea244fa8bfd7e72751cabbdb5b68a0c11a/vllm/distributed/device_communicators/pynccl_allocator.py#L22
+    libnccl-dev && \
     rm -rf /var/lib/apt/lists/*
 
 ARG PIP_INDEX_URL UV_INDEX_URL

tests/compile/distributed/test_async_tp.py

@@ -326,7 +326,7 @@ def async_tp_pass_on_test_model(
     vllm_config = VllmConfig()
     vllm_config.compilation_config = CompilationConfig(
         pass_config=PassConfig(
-            enable_async_tp=True,
+            fuse_gemm_comms=True,
         ),
     )
     vllm_config.device_config = DeviceConfig(device=torch.device("cuda"))
@@ -413,7 +413,7 @@ def test_async_tp_pass_correctness(
         "mode": CompilationMode.VLLM_COMPILE,
         "compile_sizes": [2, 4, 8],
         "splitting_ops": [],
-        "pass_config": {"enable_async_tp": async_tp_enabled},
+        "pass_config": {"fuse_gemm_comms": async_tp_enabled},
     }
 
     async_tp_args = [

tests/compile/distributed/test_fusion_all_reduce.py

@@ -295,7 +295,7 @@ def all_reduce_fusion_pass_on_test_model(
         )
     )
     vllm_config.compilation_config.pass_config = PassConfig(
-        enable_fi_allreduce_fusion=True, enable_noop=True
+        fuse_allreduce_rms=True, eliminate_noops=True
     )
     vllm_config.device_config = DeviceConfig(device=torch.device("cuda"))
     vllm_config.parallel_config.rank = local_rank  # Setup rank for debug path

tests/compile/distributed/test_fusions_e2e.py

@@ -192,7 +192,7 @@ def test_attn_quant(
         splitting_ops=splitting_ops,
         # Common
         mode=CompilationMode.VLLM_COMPILE,
-        pass_config=PassConfig(enable_attn_fusion=True, enable_noop=True),
+        pass_config=PassConfig(fuse_attn_quant=True, eliminate_noops=True),
         # Inductor caches custom passes by default as well via uuid
         inductor_compile_config={"force_disable_caches": True},
     )
@@ -282,9 +282,9 @@ def test_tp2_attn_quant_allreduce_rmsnorm(
         # Common
         mode=CompilationMode.VLLM_COMPILE,
         pass_config=PassConfig(
-            enable_attn_fusion=True,
-            enable_noop=True,
-            enable_fi_allreduce_fusion=True,
+            fuse_attn_quant=True,
+            eliminate_noops=True,
+            fuse_allreduce_rms=True,
         ),
         # Inductor caches custom passes by default as well via uuid
         inductor_compile_config={"force_disable_caches": True},
@@ -384,10 +384,10 @@ def test_tp2_attn_quant_async_tp(
         # Common
         level=CompilationMode.VLLM_COMPILE,
         pass_config=PassConfig(
-            enable_attn_fusion=True,
-            enable_noop=True,
-            enable_sequence_parallelism=True,
-            enable_async_tp=True,
+            fuse_attn_quant=True,
+            eliminate_noops=True,
+            enable_sp=True,
+            fuse_gemm_comms=True,
         ),
         # Inductor caches custom passes by default as well via uuid
         inductor_compile_config={"force_disable_caches": True},

tests/compile/distributed/test_sequence_parallelism.py

@@ -153,7 +153,7 @@ class TestAllReduceRMSNormStaticQuantFP8Model(torch.nn.Module):
         ]
 
     def ops_in_model(self):
-        if self.vllm_config.compilation_config.pass_config.enable_fusion:
+        if self.vllm_config.compilation_config.pass_config.fuse_norm_quant:
             return [torch.ops._C.fused_add_rms_norm_static_fp8_quant.default]
         elif RMSNorm.enabled():
             return [
@@ -183,7 +183,7 @@ class TestAllReduceRMSNormStaticQuantFP8Model(torch.nn.Module):
 @pytest.mark.parametrize("seq_len", [16])
 @pytest.mark.parametrize("hidden_size", [16])
 @pytest.mark.parametrize("dtype", [torch.float16, torch.bfloat16])
-@pytest.mark.parametrize("enable_fusion", [True, False])
+@pytest.mark.parametrize("fuse_norm_quant", [True, False])
 @pytest.mark.parametrize("dynamic", [False, True])
 @pytest.mark.skipif(envs.VLLM_TARGET_DEVICE not in ["cuda"], reason="Only test on CUDA")
 def test_sequence_parallelism_pass(
@@ -193,7 +193,7 @@ def test_sequence_parallelism_pass(
     seq_len: int,
     hidden_size: int,
     dtype: torch.dtype,
-    enable_fusion: bool,
+    fuse_norm_quant: bool,
     dynamic: bool,
 ):
     num_processes = 2
@@ -211,7 +211,7 @@ def test_sequence_parallelism_pass(
                 seq_len,
                 hidden_size,
                 dtype,
-                enable_fusion,
+                fuse_norm_quant,
                 dynamic,
             ),
             nprocs=nprocs,
@@ -229,7 +229,7 @@ def sequence_parallelism_pass_on_test_model(
     seq_len: int,
     hidden_size: int,
     dtype: torch.dtype,
-    enable_fusion: bool,
+    fuse_norm_quant: bool,
     dynamic: bool,
 ):
     current_platform.seed_everything(0)
@@ -260,9 +260,9 @@ def sequence_parallelism_pass_on_test_model(
         cudagraph_mode=CUDAGraphMode.NONE,  # avoid piecewise warnings
         custom_ops=custom_ops_list,
         pass_config=PassConfig(
-            enable_sequence_parallelism=True,
-            enable_fusion=enable_fusion,
-            enable_noop=True,
+            enable_sp=True,
+            fuse_norm_quant=fuse_norm_quant,
+            eliminate_noops=True,
         ),
     )  # NoOp needed for fusion
     device_config = DeviceConfig(device=torch.device("cuda"))
@@ -297,7 +297,7 @@ def sequence_parallelism_pass_on_test_model(
             sequence_parallelism_pass,
         ]
 
-        if enable_fusion:
+        if fuse_norm_quant:
             fusion_pass = RMSNormQuantFusionPass(vllm_config)
             passes_for_backend.append(fusion_pass)
 

tests/compile/fullgraph/test_full_graph.py

@@ -122,7 +122,9 @@ def test_full_graph(
             CompilationConfig(
                 mode=CompilationMode.VLLM_COMPILE,
                 custom_ops=["+rms_norm"],
-                pass_config=PassConfig(enable_fusion=True, enable_noop=True),
+                pass_config=PassConfig(
+                    fuse_norm_quant=True, fuse_act_quant=True, eliminate_noops=True
+                ),
             ),
             *model_info,
         )

tests/compile/test_config.py

@@ -1,6 +1,7 @@
 # SPDX-License-Identifier: Apache-2.0
 # SPDX-FileCopyrightText: Copyright contributors to the vLLM project
 import copy
+import logging
 from contextlib import nullcontext
 from unittest.mock import patch
 
@@ -10,8 +11,9 @@ from pydantic import ValidationError
 from vllm.compilation.counter import compilation_counter
 from vllm.compilation.fix_functionalization import FixFunctionalizationPass
 from vllm.config import CompilationConfig, CUDAGraphMode, VllmConfig
-from vllm.config.compilation import CompilationMode
+from vllm.config.compilation import CompilationMode, PassConfig
 from vllm.engine.arg_utils import EngineArgs
+from vllm.logger import _print_warning_once
 from vllm.platforms import current_platform
 from vllm.utils.torch_utils import _is_torch_equal_or_newer
 
@@ -191,7 +193,7 @@ def test_splitting_ops_dynamic():
     config = VllmConfig(
         compilation_config=CompilationConfig(
             mode=CompilationMode.VLLM_COMPILE,
-            pass_config={"enable_attn_fusion": True, "enable_noop": True},
+            pass_config=PassConfig(fuse_attn_quant=True, eliminate_noops=True),
             custom_ops=["+quant_fp8"],
             cudagraph_mode=CUDAGraphMode.PIECEWISE,
         )
@@ -206,7 +208,7 @@ def test_splitting_ops_dynamic():
         config = VllmConfig(
             compilation_config=CompilationConfig(
                 mode=CompilationMode.VLLM_COMPILE,
-                pass_config={"enable_attn_fusion": True, "enable_noop": True},
+                pass_config=PassConfig(fuse_attn_quant=True, eliminate_noops=True),
                 custom_ops=["+quant_fp8"],
                 cudagraph_mode=CUDAGraphMode.PIECEWISE,
                 # work around for accessing all attntion ops
@@ -219,7 +221,7 @@ def test_splitting_ops_dynamic():
         compilation_config=CompilationConfig(
             mode=CompilationMode.VLLM_COMPILE,
             use_inductor_graph_partition=True,
-            pass_config={"enable_attn_fusion": True, "enable_noop": True},
+            pass_config=PassConfig(fuse_attn_quant=True, eliminate_noops=True),
             custom_ops=["+quant_fp8"],
             cudagraph_mode=CUDAGraphMode.PIECEWISE,
         )
@@ -227,7 +229,7 @@ def test_splitting_ops_dynamic():
     # With inductor graph partition, attn_fusion and splitting_ops
     # work together. Default splitting_ops include attention ops.
     assert config.compilation_config.splitting_ops_contain_attention()
-    # enable_attn_fusion is directly supported under
+    # fuse_attn_quant is directly supported under
     # use_inductor_graph_partition=True, and cudagraph_mode
     # is unchanged.
     assert config.compilation_config.cudagraph_mode == CUDAGraphMode.PIECEWISE
@@ -301,7 +303,7 @@ def test_should_split():
         "cudagraph_capture_sizes",
         "max_cudagraph_capture_size",
         "tp_size",
-        "enable_sequence_parallelism",
+        "enable_sp",
         "max_num_batched_tokens",
         "cudagraph_mode",
         "expected_max_size",
@@ -339,7 +341,7 @@ def test_cudagraph_sizes_post_init(
     cudagraph_capture_sizes,
     max_cudagraph_capture_size,
     tp_size,
-    enable_sequence_parallelism,
+    enable_sp,
     max_num_batched_tokens,
     cudagraph_mode,
     expected_max_size,
@@ -355,11 +357,12 @@ def test_cudagraph_sizes_post_init(
         compilation_config = CompilationConfig(
             cudagraph_capture_sizes=cudagraph_capture_sizes,
             max_cudagraph_capture_size=max_cudagraph_capture_size,
-            pass_config={
-                "enable_sequence_parallelism": enable_sequence_parallelism,
-                "enable_fusion": True,
-                "enable_noop": True,
-            },
+            pass_config=PassConfig(
+                enable_sp=enable_sp,
+                fuse_norm_quant=True,
+                fuse_act_quant=True,
+                eliminate_noops=True,
+            ),
             cudagraph_mode=cudagraph_mode,
         )
         engine_args = EngineArgs(
@@ -375,3 +378,53 @@ def test_cudagraph_sizes_post_init(
             vllm_config.compilation_config.max_cudagraph_capture_size
             == expected_max_size
         )
+
+
+def test_pass_config_deprecation(caplog_vllm):
+    caplog_vllm.set_level(logging.WARNING)
+
+    # Clear cache to ensure warnings are re-issued
+    _print_warning_once.cache_clear()
+
+    # Test enable_fusion -> fuse_norm_quant, fuse_act_quant
+    caplog_vllm.clear()
+    config = PassConfig(enable_fusion=True)
+    assert "enable_fusion is deprecated" in caplog_vllm.text
+    assert config.fuse_norm_quant is True
+    assert config.fuse_act_quant is True
+    assert config.enable_fusion is None
+
+    # Test enable_attn_fusion -> fuse_attn_quant
+    caplog_vllm.clear()
+    config = PassConfig(enable_attn_fusion=True)
+    assert "enable_attn_fusion is deprecated" in caplog_vllm.text
+    assert config.fuse_attn_quant is True
+    assert config.enable_attn_fusion is None
+
+    # Test enable_noop -> eliminate_noops
+    caplog_vllm.clear()
+    config = PassConfig(enable_noop=True)
+    assert "enable_noop is deprecated" in caplog_vllm.text
+    assert config.eliminate_noops is True
+    assert config.enable_noop is None
+
+    # Test enable_sequence_parallelism -> enable_sp
+    caplog_vllm.clear()
+    config = PassConfig(enable_sequence_parallelism=True)
+    assert "enable_sequence_parallelism is deprecated" in caplog_vllm.text
+    assert config.enable_sp is True
+    assert config.enable_sequence_parallelism is None
+
+    # Test enable_async_tp -> fuse_gemm_comms
+    caplog_vllm.clear()
+    config = PassConfig(enable_async_tp=True)
+    assert "enable_async_tp is deprecated" in caplog_vllm.text
+    assert config.fuse_gemm_comms is True
+    assert config.enable_async_tp is None
+
+    # Test enable_fi_allreduce_fusion -> fuse_allreduce_rms
+    caplog_vllm.clear()
+    config = PassConfig(enable_fi_allreduce_fusion=True)
+    assert "enable_fi_allreduce_fusion is deprecated" in caplog_vllm.text
+    assert config.fuse_allreduce_rms is True
+    assert config.enable_fi_allreduce_fusion is None

tests/compile/test_functionalization.py

@@ -223,7 +223,11 @@ def test_fix_functionalization(
         model_config=ModelConfig(dtype=dtype),
         compilation_config=CompilationConfig(
             custom_ops=["all"],
-            pass_config=PassConfig(enable_fusion=do_fusion, enable_noop=True),
+            pass_config=PassConfig(
+                fuse_norm_quant=do_fusion,
+                fuse_act_quant=do_fusion,
+                eliminate_noops=True,
+            ),
         ),
     )
 

tests/compile/test_fusion.py

@@ -159,7 +159,9 @@ def test_fusion_rmsnorm_quant(
         compilation_config=CompilationConfig(
             mode=CompilationMode.VLLM_COMPILE,
             custom_ops=custom_ops,
-            pass_config=PassConfig(enable_fusion=True, enable_noop=True),
+            pass_config=PassConfig(
+                fuse_norm_quant=True, fuse_act_quant=True, eliminate_noops=True
+            ),
         ),
     )
     with vllm.config.set_current_vllm_config(vllm_config):

tests/compile/test_fusion_attn.py

@@ -318,13 +318,18 @@ def test_attention_quant_pattern(
     torch.set_default_dtype(dtype)
     torch.manual_seed(42)
 
+    model_config = ModelConfig(
+        model=model_name,
+        max_model_len=2048,
+        dtype=dtype,
+    )
     vllm_config = VllmConfig(
-        model_config=ModelConfig(
-            model=model_name,
-            max_model_len=2048,
-            dtype=dtype,
+        model_config=model_config,
+        scheduler_config=SchedulerConfig(
+            max_num_seqs=1024,
+            max_model_len=model_config.max_model_len,
+            is_encoder_decoder=model_config.is_encoder_decoder,
         ),
-        scheduler_config=SchedulerConfig(max_num_seqs=1024),
         compilation_config=CompilationConfig(
             mode=CompilationMode.VLLM_COMPILE,
             custom_ops=custom_ops_list,
@@ -368,7 +373,7 @@ def test_attention_quant_pattern(
 
     # Run model with attn fusion enabled
     vllm_config.compilation_config.pass_config = PassConfig(
-        enable_attn_fusion=True, enable_noop=True
+        fuse_attn_quant=True, eliminate_noops=True
     )
     with (
         set_current_vllm_config(vllm_config),

tests/compile/test_noop_elimination.py

@@ -51,7 +51,7 @@ def test_noop_elimination(dtype, num_tokens, hidden_size, buffer_size):
     vllm_config = VllmConfig(
         compilation_config=CompilationConfig(
             mode=CompilationMode.VLLM_COMPILE,
-            pass_config=PassConfig(enable_noop=True),
+            pass_config=PassConfig(eliminate_noops=True),
         )
     )
     with vllm.config.set_current_vllm_config(vllm_config):
@@ -99,7 +99,7 @@ def test_non_noop_slice_preserved():
     vllm_config = VllmConfig(
         compilation_config=CompilationConfig(
             mode=CompilationMode.VLLM_COMPILE,
-            pass_config=PassConfig(enable_noop=True),
+            pass_config=PassConfig(eliminate_noops=True),
         )
     )
     with vllm.config.set_current_vllm_config(vllm_config):

tests/compile/test_pass_manager.py

@@ -64,8 +64,11 @@ def test_pass_manager_uuid(callable):
 
     # UUID should be different due to config change
     config2 = copy.deepcopy(config)
-    config2.compilation_config.pass_config.enable_fusion = (
-        not config2.compilation_config.pass_config.enable_fusion
+    config2.compilation_config.pass_config.fuse_norm_quant = (
+        not config2.compilation_config.pass_config.fuse_norm_quant
+    )
+    config2.compilation_config.pass_config.fuse_act_quant = (
+        not config2.compilation_config.pass_config.fuse_act_quant
     )
     pass_manager3 = PostGradPassManager()
     pass_manager3.configure(config2)

tests/compile/test_qk_norm_rope_fusion.py

@@ -140,7 +140,7 @@ def test_qk_norm_rope_fusion(
             custom_ops=custom_ops,
             pass_config=PassConfig(
                 enable_qk_norm_rope_fusion=True,
-                enable_noop=True,
+                eliminate_noops=True,
             ),
         ),
     )

tests/compile/test_silu_mul_quant_fusion.py

@@ -168,7 +168,7 @@ def test_fusion_silu_and_mul_quant(
         compilation_config=CompilationConfig(
             mode=CompilationMode.VLLM_COMPILE,
             custom_ops=custom_ops,
-            pass_config=PassConfig(enable_fusion=True, enable_noop=True),
+            pass_config=PassConfig(fuse_act_quant=True, eliminate_noops=True),
         ),
     )
 

tests/distributed/test_eplb_spec_decode.py

@@ -22,7 +22,14 @@ def get_model_args(
         "num_speculative_tokens": 1,
         "max_model_len": model_max_len,
     }
-
+    eplb_config = {
+        "num_redundant_experts": tp_size,
+        "window_size": 128,
+        "step_interval": 1024,
+        "log_balancedness": False,
+    }
+    if use_async:
+        eplb_config["use_async"] = True
     model_args = {
         "pretrained": model_name,
         "dtype": "auto",
@@ -31,15 +38,10 @@ def get_model_args(
         "gpu_memory_utilization": 0.7,
         "speculative_config": speculative_config,
         "enable_expert_parallel": True,
-        "num_redundant_experts": tp_size,
-        "eplb_window_size": 128,
-        "eplb_step_interval": 1024,
-        "eplb_log_balancedness": False,
+        "eplb_config": eplb_config,
         "enable_eplb": True,
         "max_model_len": model_max_len,
     }
-    if use_async:
-        model_args["eplb_config"] = {"use_async": True}
     return model_args
 
 

tests/distributed/test_sequence_parallel.py

@@ -32,7 +32,8 @@ VLLM_MULTI_NODE = os.getenv("VLLM_MULTI_NODE", "0") == "1"
 class ParallelSetup(NamedTuple):
     tp_size: int
     pp_size: int
-    enable_fusion: bool
+    fuse_norm_quant: bool
+    fuse_act_quant: bool
     eager_mode: bool
     chunked_prefill: bool
 
@@ -66,7 +67,8 @@ class SPTestSettings:
                         ParallelSetup(
                             tp_size=tp_base,
                             pp_size=pp_multiplier * pp_base,
-                            enable_fusion=False,
+                            fuse_norm_quant=False,
+                            fuse_act_quant=False,
                             eager_mode=eager_mode_val,
                             chunked_prefill=chunked_prefill_val,
                         )
@@ -97,7 +99,8 @@ class SPTestSettings:
                         ParallelSetup(
                             tp_size=tp_base,
                             pp_size=pp_multiplier * pp_base,
-                            enable_fusion=False,
+                            fuse_norm_quant=False,
+                            fuse_act_quant=False,
                             eager_mode=eager_mode_val,
                             chunked_prefill=chunked_prefill_val,
                         )
@@ -126,7 +129,8 @@ class SPTestSettings:
                 ParallelSetup(
                     tp_size=tp_base,
                     pp_size=pp_base,
-                    enable_fusion=fusion_val,
+                    fuse_norm_quant=fusion_val,
+                    fuse_act_quant=fusion_val,
                     eager_mode=True,
                     chunked_prefill=False,
                 )
@@ -162,7 +166,7 @@ def _compare_sp(
     test_options: SPTestOptions,
     num_gpus_available: int,
     use_inductor_graph_partition: bool,
-    enable_async_tp: bool,
+    fuse_gemm_comms: bool,
     *,
     method: Literal["generate", "encode"],
     is_multimodal: bool,
@@ -170,7 +174,8 @@ def _compare_sp(
     (
         tp_size,
         pp_size,
-        enable_fusion,
+        fuse_norm_quant,
+        fuse_act_quant,
         eager_mode,
         chunked_prefill,
     ) = parallel_setup
@@ -248,10 +253,11 @@ def _compare_sp(
         "mode": CompilationMode.VLLM_COMPILE,
         "compile_sizes": [4, 8],
         "pass_config": {
-            "enable_sequence_parallelism": True,
-            "enable_async_tp": enable_async_tp,
-            "enable_fusion": enable_fusion,
-            "enable_noop": True,
+            "enable_sp": True,
+            "fuse_gemm_comms": fuse_gemm_comms,
+            "fuse_norm_quant": fuse_norm_quant,
+            "fuse_act_quant": fuse_act_quant,
+            "eliminate_noops": True,
         },
         "use_inductor_graph_partition": use_inductor_graph_partition,
     }
@@ -309,7 +315,7 @@ SP_TEST_MODELS = [
     ],
 )
 @pytest.mark.parametrize("use_inductor_graph_partition", [True, False])
-@pytest.mark.parametrize("enable_async_tp", [False])  # TODO: enable async TP
+@pytest.mark.parametrize("fuse_gemm_comms", [False])  # TODO: enable async TP
 @create_new_process_for_each_test()
 def test_tp_sp_generation(
     model_id: str,
@@ -319,7 +325,7 @@ def test_tp_sp_generation(
     test_options: SPTestOptions,
     num_gpus_available,
     use_inductor_graph_partition: bool,
-    enable_async_tp: bool,
+    fuse_gemm_comms: bool,
 ):
     if use_inductor_graph_partition and not is_torch_equal_or_newer("2.9.0.dev"):
         pytest.skip("inductor graph partition is only available in PyTorch 2.9+")
@@ -328,7 +334,7 @@ def test_tp_sp_generation(
     if (
         "fp8" in model_id.lower()
         and current_platform.get_device_capability() < (9, 0)
-        and (not enable_async_tp)
+        and (not fuse_gemm_comms)
     ):
         pytest.skip("FP8 reduction support begins with sm90 capable devices.")
 
@@ -340,7 +346,7 @@ def test_tp_sp_generation(
         test_options,
         num_gpus_available,
         use_inductor_graph_partition,
-        enable_async_tp=enable_async_tp,
+        fuse_gemm_comms=fuse_gemm_comms,
         method="generate",
         is_multimodal=False,
     )

tests/lora/test_worker.py

@@ -33,14 +33,16 @@ def test_worker_apply_lora(qwen3_lora_files):
             lora_requests, lora_mapping
         )
 
+    model_config = ModelConfig(
+        MODEL_PATH,
+        seed=0,
+        dtype="float16",
+        max_model_len=127,
+        enforce_eager=True,
+    )
+
     vllm_config = VllmConfig(
-        model_config=ModelConfig(
-            MODEL_PATH,
-            seed=0,
-            dtype="float16",
-            max_model_len=127,
-            enforce_eager=True,
-        ),
+        model_config=model_config,
         load_config=LoadConfig(
             download_dir=None,
             load_format="dummy",
@@ -50,7 +52,14 @@ def test_worker_apply_lora(qwen3_lora_files):
             tensor_parallel_size=1,
             data_parallel_size=1,
         ),
-        scheduler_config=SchedulerConfig("generate", 32, 32, 32),
+        scheduler_config=SchedulerConfig(
+            max_model_len=model_config.max_model_len,
+            is_encoder_decoder=model_config.is_encoder_decoder,
+            runner_type="generate",
+            max_num_batched_tokens=32,
+            max_num_seqs=32,
+            max_num_partial_prefills=32,
+        ),
         device_config=DeviceConfig("cuda"),
         cache_config=CacheConfig(
             block_size=16,

tests/models/language/generation/test_mistral.py

@@ -315,3 +315,38 @@ def test_mistral_function_call_nested_json():
     assert json.loads(parsed.tool_calls[0].function.arguments) == args_dict
     # No additional content outside the tool call should be returned.
     assert parsed.content is None
+
+    # multiple calls
+    multiple_args_dict = [
+        {
+            "city": "Dallas",
+            "state": "TX",
+            "unit": "fahrenheit",
+            "sub_dict": {"foo": "bar", "inner": {"x": 1, "y": 2}},
+        },
+        {},
+        {"a": 0},
+        {"a": 1, "b": "c"},
+    ]
+    names = ["get_current_weather", "get_current_weather_2", "random", "random_2"]
+
+    model_output = "".join(
+        [
+            f"{parser.bot_token}{name}{json.dumps(args)}"
+            for name, args in zip(names, multiple_args_dict)
+        ]
+    )
+
+    parsed = parser.extract_tool_calls(model_output, None)
+
+    # Assertions: the tool call is detected and the full nested JSON is parsed
+    # without truncation.
+    assert parsed.tools_called
+    assert len(parsed.tool_calls) == len(multiple_args_dict)
+
+    for i, tool_call in enumerate(parsed.tool_calls):
+        assert MistralToolCall.is_valid_id(tool_call.id)
+        assert tool_call.function.name == names[i]
+        assert json.loads(tool_call.function.arguments) == multiple_args_dict[i]
+        # No additional content outside the tool call should be returned.
+        assert parsed.content is None

tests/models/multimodal/processing/test_common.py

@@ -22,8 +22,11 @@ from vllm.multimodal import MULTIMODAL_REGISTRY, MultiModalDataDict
 from vllm.multimodal.cache import MultiModalProcessorOnlyCache
 from vllm.multimodal.inputs import MultiModalInputs
 from vllm.multimodal.processing import BaseMultiModalProcessor, InputProcessingContext
-from vllm.tokenizers import MistralTokenizer, cached_tokenizer_from_config
-from vllm.transformers_utils.tokenizer import encode_tokens
+from vllm.tokenizers import (
+    MistralTokenizer,
+    TokenizerLike,
+    cached_tokenizer_from_config,
+)
 
 from ....multimodal.utils import random_audio, random_image, random_video
 from ...registry import (
@@ -151,7 +154,7 @@ def get_text_token_prompts(
     mm_data: MultiModalDataDict,
 ):
     dummy_inputs = processor.dummy_inputs
-    tokenizer = processor.info.get_tokenizer()
+    tokenizer: TokenizerLike = processor.info.get_tokenizer()
     model_config = processor.info.ctx.model_config
 
     model_type = model_config.hf_config.model_type
@@ -188,10 +191,9 @@ def get_text_token_prompts(
         assert isinstance(inputs.prompt, str)
 
         text_prompt = inputs.prompt
-        token_prompt = encode_tokens(
-            tokenizer,
+        token_prompt = tokenizer.encode(
             text_prompt,
-            add_special_tokens=_ADD_SPECIAL_TOKENS_OVERRIDES.get(model_type),
+            add_special_tokens=_ADD_SPECIAL_TOKENS_OVERRIDES.get(model_type, True),
         )
 
     return text_prompt, token_prompt

tests/models/multimodal/processing/test_llama4.py

@@ -5,7 +5,6 @@
 import pytest
 
 from vllm.multimodal import MULTIMODAL_REGISTRY
-from vllm.transformers_utils.tokenizer import encode_tokens
 
 from ....conftest import ImageTestAssets
 from ...utils import build_model_context
@@ -48,7 +47,7 @@ def test_processor_override(
         ]
     }
     if tokenized_prompt:
-        prompt = encode_tokens(tokenizer, prompt)
+        prompt = tokenizer.encode(prompt)
 
     processed_inputs = processor.apply(prompt, mm_data, mm_processor_kwargs)
     mm_data = processed_inputs["mm_kwargs"].get_data()

tests/test_config.py

@@ -6,12 +6,14 @@ from dataclasses import MISSING, Field, asdict, dataclass, field
 from unittest.mock import patch
 
 import pytest
+from pydantic import ValidationError
 
 from vllm.compilation.backends import VllmBackend
 from vllm.config import (
     CompilationConfig,
     ModelConfig,
     PoolerConfig,
+    SchedulerConfig,
     VllmConfig,
     update_config,
 )
@@ -1021,17 +1023,17 @@ def test_vllm_config_explicit_overrides():
     assert config.compilation_config.cudagraph_mode == CUDAGraphMode.NONE
 
     # Explicit pass config flags to override defaults
-    pass_config = PassConfig(enable_noop=True, enable_attn_fusion=True)
+    pass_config = PassConfig(eliminate_noops=True, fuse_attn_quant=True)
     compilation_config = CompilationConfig(pass_config=pass_config)
     config = VllmConfig(
         optimization_level=OptimizationLevel.O0,
         compilation_config=compilation_config,
     )
-    assert config.compilation_config.pass_config.enable_noop is True
-    assert config.compilation_config.pass_config.enable_attn_fusion is True
+    assert config.compilation_config.pass_config.eliminate_noops is True
+    assert config.compilation_config.pass_config.fuse_attn_quant is True
 
     # Explicit cudagraph mode override on quantized model at O2
-    pass_config = PassConfig(enable_async_tp=True)
+    pass_config = PassConfig(fuse_gemm_comms=True)
     compilation_config = CompilationConfig(
         cudagraph_mode=CUDAGraphMode.NONE, pass_config=pass_config
     )
@@ -1041,7 +1043,7 @@ def test_vllm_config_explicit_overrides():
         compilation_config=compilation_config,
     )
     assert config.compilation_config.cudagraph_mode == CUDAGraphMode.NONE
-    assert config.compilation_config.pass_config.enable_async_tp is True
+    assert config.compilation_config.pass_config.fuse_gemm_comms is True
     # Mode should still use default for O2
     assert config.compilation_config.mode == CompilationMode.VLLM_COMPILE
 
@@ -1091,7 +1093,18 @@ def test_vllm_config_explicit_overrides():
         compilation_config=compilation_config,
     )
     # Explicit override should be respected
-    assert config.compilation_config.pass_config.enable_noop is False
+    assert config.compilation_config.pass_config.eliminate_noops is False
     # Other fields should still use defaults
     assert config.compilation_config.mode == CompilationMode.VLLM_COMPILE
     assert config.compilation_config.cudagraph_mode == CUDAGraphMode.FULL_AND_PIECEWISE
+
+
+def test_scheduler_config_init():
+    with pytest.raises(ValidationError):
+        # Positional InitVars missing
+        # (InitVars cannot have defaults otherwise they will become attributes)
+        SchedulerConfig()
+
+    with pytest.raises(AttributeError):
+        # InitVar does not become an attribute
+        print(SchedulerConfig.default_factory().max_model_len)

tests/v1/attention/utils.py

@@ -185,6 +185,8 @@ def create_vllm_config(
         max_num_seqs=max_num_seqs,
         max_num_batched_tokens=max_num_batched_tokens,
         enable_chunked_prefill=enable_chunked_prefill,
+        max_model_len=model_config.max_model_len,
+        is_encoder_decoder=model_config.is_encoder_decoder,
     )
 
     device_config = DeviceConfig()

tests/v1/core/test_kv_cache_utils.py

@@ -1128,7 +1128,11 @@ def test_estimate_max_model_len(model_id, max_model_len, want_estimated_max_len)
         dtype="float16",
         max_model_len=max_model_len,
     )
-    scheduler_config = SchedulerConfig(max_num_batched_tokens=32768)
+    scheduler_config = SchedulerConfig(
+        max_num_batched_tokens=32768,
+        max_model_len=model_config.max_model_len,
+        is_encoder_decoder=model_config.is_encoder_decoder,
+    )
 
     vllm_config = VllmConfig(
         model_config=model_config,
@@ -1163,7 +1167,10 @@ def test_get_max_concurrency_for_kv_cache_config():
         max_model_len=max_model_len,
     )
     scheduler_config = SchedulerConfig(
-        max_num_batched_tokens=1024, enable_chunked_prefill=True
+        max_num_batched_tokens=1024,
+        enable_chunked_prefill=True,
+        max_model_len=model_config.max_model_len,
+        is_encoder_decoder=model_config.is_encoder_decoder,
     )
 
     vllm_config = VllmConfig(

tests/v1/core/test_priority_scheduler_random.py

@@ -219,7 +219,17 @@ def test_priority_scheduling_blast(
             vllm_config=scheduler.vllm_config,
         )
         scheduler.add_request(req)
-
+    num_initial_requests = 2
+    for _ in range(num_initial_requests):
+        req = _create_random_request(
+            max_tokens_range=(1, max_output_tokens),
+            num_tokens_range=(1, max_input_tokens),
+            arrival_time_range=(0, 0),
+            priority_range=(4, 4),
+            num_mm_item_range=(0, 2),
+            vllm_config=scheduler.vllm_config,
+        )
+        scheduler.add_request(req)
     for _ in range(20000):
         if len(scheduler.waiting) == 0:
             num_new_requests = random.randint(0, 2)

tests/v1/core/test_scheduler.py

@@ -1508,6 +1508,12 @@ def create_scheduler_with_priority(
     Returns:
       {class}`Scheduler` instance with priority scheduling
     """
+    model_config = ModelConfig(
+        model=model,
+        trust_remote_code=True,
+        dtype="float16",
+        seed=42,
+    )
     if max_model_len is None:
         max_model_len = max_num_batched_tokens
     scheduler_config = SchedulerConfig(
@@ -1517,14 +1523,9 @@ def create_scheduler_with_priority(
         long_prefill_token_threshold=long_prefill_token_threshold,
         disable_chunked_mm_input=disable_chunked_mm_input,
         enable_chunked_prefill=True,
+        is_encoder_decoder=model_config.is_encoder_decoder,
         policy="priority",  # Enable priority scheduling
     )
-    model_config = ModelConfig(
-        model=model,
-        trust_remote_code=True,
-        dtype="float16",
-        seed=42,
-    )
     # Cache config, optionally force APC
     cache_config = CacheConfig(
         block_size=block_size,

tests/v1/core/utils.py

@@ -69,6 +69,13 @@ def create_scheduler(
     Returns:
       {class}`Scheduler` instance
     """
+    model_config = ModelConfig(
+        model=model,
+        trust_remote_code=True,
+        dtype="float16",
+        seed=42,
+        skip_tokenizer_init=skip_tokenizer_init,
+    )
     if max_model_len is None:
         max_model_len = max_num_batched_tokens
     scheduler_config = SchedulerConfig(
@@ -79,13 +86,7 @@ def create_scheduler(
         disable_chunked_mm_input=disable_chunked_mm_input,
         enable_chunked_prefill=enable_chunked_prefill,
         async_scheduling=async_scheduling,
-    )
-    model_config = ModelConfig(
-        model=model,
-        trust_remote_code=True,
-        dtype="float16",
-        seed=42,
-        skip_tokenizer_init=skip_tokenizer_init,
+        is_encoder_decoder=model_config.is_encoder_decoder,
     )
     # Cache config, optionally force APC
     cache_config = CacheConfig(

tests/v1/cudagraph/test_cudagraph_dispatch.py

@@ -40,7 +40,9 @@ def _create_vllm_config(
 ) -> MagicMock:
     mock_config = MagicMock(spec=VllmConfig)
     mock_config.compilation_config = compilation_config
-    mock_config.scheduler_config = SchedulerConfig(max_num_seqs=max_num_seqs)
+    mock_config.scheduler_config = SchedulerConfig.default_factory(
+        max_num_seqs=max_num_seqs,
+    )
     mock_config.parallel_config = ParallelConfig()
     mock_config.speculative_config = None  # No speculative decoding
     if not lora_config:

tests/v1/engine/test_engine_core.py

@@ -484,12 +484,6 @@ def test_encoder_instance_zero_kv_cache(
     vision encoder, so they don't need KV cache for text generation.
     """
     # Form vllm config
-    scheduler_config = SchedulerConfig(
-        max_num_seqs=10,
-        max_num_batched_tokens=512,
-        max_model_len=512,
-        disable_hybrid_kv_cache_manager=True,
-    )
     model_config = ModelConfig(
         model="llava-hf/llava-1.5-7b-hf",  # Multimodal model
         enforce_eager=True,
@@ -497,6 +491,13 @@ def test_encoder_instance_zero_kv_cache(
         dtype="float16",
         seed=42,
     )
+    scheduler_config = SchedulerConfig(
+        max_num_seqs=10,
+        max_num_batched_tokens=512,
+        max_model_len=512,
+        disable_hybrid_kv_cache_manager=True,
+        is_encoder_decoder=model_config.is_encoder_decoder,
+    )
     cache_config = CacheConfig(
         block_size=16,
         gpu_memory_utilization=gpu_memory_utilization,

tests/v1/kv_connector/unit/utils.py

@@ -92,18 +92,19 @@ def create_vllm_config(
     enable_permute_local_kv: bool = False,
 ) -> VllmConfig:
     """Initialize VllmConfig For Testing."""
-    scheduler_config = SchedulerConfig(
-        max_num_seqs=max_num_seqs,
-        max_num_batched_tokens=max_num_batched_tokens,
-        max_model_len=max_model_len,
-        enable_chunked_prefill=enable_chunked_prefill,
-    )
     model_config = ModelConfig(
         model=model,
         trust_remote_code=True,
         dtype="float16",
         seed=42,
     )
+    scheduler_config = SchedulerConfig(
+        max_num_seqs=max_num_seqs,
+        max_num_batched_tokens=max_num_batched_tokens,
+        max_model_len=max_model_len,
+        enable_chunked_prefill=enable_chunked_prefill,
+        is_encoder_decoder=model_config.is_encoder_decoder,
+    )
     # Cache config, optionally force APC
     cache_config = CacheConfig(
         block_size=block_size,

tests/v1/spec_decode/test_eagle.py

@@ -66,7 +66,10 @@ def _create_proposer(
         device_config=DeviceConfig(device=current_platform.device_type),
         parallel_config=ParallelConfig(),
         load_config=LoadConfig(),
-        scheduler_config=SchedulerConfig(),
+        scheduler_config=SchedulerConfig(
+            max_model_len=model_config.max_model_len,
+            is_encoder_decoder=model_config.is_encoder_decoder,
+        ),
     )
 
     return EagleProposer(vllm_config=vllm_config, device=current_platform.device_type)

tests/v1/spec_decode/test_mtp.py

@@ -51,7 +51,10 @@ def _create_mtp_proposer(num_speculative_tokens: int) -> EagleProposer:
         device_config=DeviceConfig(device=current_platform.device_type),
         parallel_config=ParallelConfig(),
         load_config=LoadConfig(),
-        scheduler_config=SchedulerConfig(),
+        scheduler_config=SchedulerConfig(
+            max_model_len=model_config.max_model_len,
+            is_encoder_decoder=model_config.is_encoder_decoder,
+        ),
     )
 
     return EagleProposer(vllm_config=vllm_config, device=current_platform.device_type)

tests/v1/tpu/worker/test_tpu_model_runner.py

@@ -26,16 +26,17 @@ from vllm.v1.worker.tpu_model_runner import (
 
 
 def get_vllm_config():
-    scheduler_config = SchedulerConfig(
-        max_num_seqs=10,
-        max_num_batched_tokens=512,
-        max_model_len=512,
-    )
     model_config = ModelConfig(
         model="facebook/opt-125m",
         dtype="bfloat16",  # TPUs typically use bfloat16
         seed=42,
     )
+    scheduler_config = SchedulerConfig(
+        max_num_seqs=10,
+        max_num_batched_tokens=512,
+        max_model_len=512,
+        is_encoder_decoder=model_config.is_encoder_decoder,
+    )
     cache_config = CacheConfig(
         block_size=16,
         gpu_memory_utilization=0.9,

tests/v1/worker/test_gpu_model_runner.py

@@ -79,16 +79,17 @@ def initialize_kv_cache(runner: GPUModelRunner):
 
 
 def get_vllm_config():
-    scheduler_config = SchedulerConfig(
-        max_num_seqs=10,
-        max_num_batched_tokens=512,
-        max_model_len=512,
-    )
     model_config = ModelConfig(
         model="facebook/opt-125m",
         dtype="float16",
         seed=42,
     )
+    scheduler_config = SchedulerConfig(
+        max_num_seqs=10,
+        max_num_batched_tokens=512,
+        max_model_len=512,
+        is_encoder_decoder=model_config.is_encoder_decoder,
+    )
     cache_config = CacheConfig(
         block_size=BLOCK_SIZE,
         gpu_memory_utilization=0.9,
@@ -784,14 +785,15 @@ def test_hybrid_attention_mamba_tensor_shapes(monkeypatch):
     initialize_model_parallel(tensor_model_parallel_size=1)
     torch.set_default_dtype(torch.float16)
 
+    model_config = ModelConfig(
+        model="ibm-granite/granite-4.0-tiny-preview",
+        dtype="float16",
+    )
     scheduler_config = SchedulerConfig(
         max_num_seqs=10,
         max_num_batched_tokens=512,
         max_model_len=512,
-    )
-    model_config = ModelConfig(
-        model="ibm-granite/granite-4.0-tiny-preview",
-        dtype="float16",
+        is_encoder_decoder=model_config.is_encoder_decoder,
     )
     cache_config = CacheConfig(
         block_size=BLOCK_SIZE,

vllm/compilation/pass_manager.py

@@ -92,22 +92,23 @@ class PostGradPassManager(CustomGraphPass):
 
         # Set the current vllm config to allow tracing CustomOp instances
         with set_current_vllm_config(config, check_compile=False):
-            if self.pass_config.enable_noop:
+            if self.pass_config.eliminate_noops:
                 self.passes += [NoOpEliminationPass(config)]
 
-            if self.pass_config.enable_sequence_parallelism:
+            if self.pass_config.enable_sp:
                 self.passes += [SequenceParallelismPass(config)]
-                if self.pass_config.enable_async_tp:
+                if self.pass_config.fuse_gemm_comms:
                     self.passes += [AsyncTPPass(config)]
 
-            if self.pass_config.enable_fi_allreduce_fusion:
+            if self.pass_config.fuse_allreduce_rms:
                 self.passes += [AllReduceFusionPass(config)]
 
-            if self.pass_config.enable_fusion:
+            if self.pass_config.fuse_norm_quant:
                 self.passes += [RMSNormQuantFusionPass(config)]
+            if self.pass_config.fuse_act_quant:
                 self.passes += [ActivationQuantFusionPass(config)]
 
-            if self.pass_config.enable_attn_fusion:
+            if self.pass_config.fuse_attn_quant:
                 self.passes += [AttnFusionPass(config)]
 
             if self.pass_config.enable_qk_norm_rope_fusion:

vllm/config/compilation.py

@@ -13,7 +13,7 @@ from pydantic.dataclasses import dataclass
 
 import vllm.envs as envs
 from vllm.compilation.inductor_pass import CallableInductorPass, InductorPass
-from vllm.config.utils import config
+from vllm.config.utils import config, handle_deprecated
 from vllm.logger import init_logger
 from vllm.platforms import current_platform
 from vllm.utils.import_utils import resolve_obj_by_qualname
@@ -105,18 +105,43 @@ class PassConfig:
     improper state.
     """
 
+    # New flags
+    fuse_norm_quant: bool = Field(default=None)
+    """Fuse the custom RMSNorm + quant ops."""
+    fuse_act_quant: bool = Field(default=None)
+    """Fuse the custom SiluMul + quant ops."""
+    fuse_attn_quant: bool = Field(default=None)
+    """Fuse the custom attention + quant ops."""
+    eliminate_noops: bool = Field(default=None)
+    """Eliminate no-op ops."""
+    enable_sp: bool = Field(default=None)
+    """Enable sequence parallelism."""
+    fuse_gemm_comms: bool = Field(default=None)
+    """Enable async TP."""
+    fuse_allreduce_rms: bool = Field(default=None)
+    """Enable flashinfer allreduce fusion."""
+
+    # Deprecated flags
     enable_fusion: bool = Field(default=None)
-    """Whether to enable the custom fusion (RMSNorm/SiluMul+quant) pass."""
+    """Deprecated in: v0.12.0. Use fuse_norm_quant and fuse_act_quant 
+    instead. Will be removed in v0.13.0 or v1.0.0, whichever is sooner.
+    """
     enable_attn_fusion: bool = Field(default=None)
-    """Whether to enable the custom attention+quant fusion pass."""
+    """Deprecated in: v0.12.0. Use fuse_attn_quant instead. 
+    Will be removed in v0.13.0 or v1.0.0, whichever is sooner."""
     enable_noop: bool = Field(default=None)
-    """Whether to enable the custom no-op elimination pass."""
+    """Deprecated in: v0.12.0. Use eliminate_noops instead. 
+    Will be removed in v0.13.0 or v1.0.0, whichever is sooner."""
     enable_sequence_parallelism: bool = Field(default=None)
-    """Whether to enable sequence parallelism."""
+    """Deprecated in: v0.12.0. Use enable_sp instead. 
+    Will be removed in v0.13.0 or v1.0.0, whichever is sooner."""
     enable_async_tp: bool = Field(default=None)
-    """Whether to enable async TP."""
+    """Deprecated in: v0.12.0. Use fuse_gemm_comms instead. 
+    Will be removed in v0.13.0 or v1.0.0, whichever is sooner."""
     enable_fi_allreduce_fusion: bool = Field(default=None)
-    """Whether to enable flashinfer allreduce fusion."""
+    """Deprecated in: v0.12.0. Use fuse_allreduce_rms instead. 
+    Will be removed in v0.13.0 or v1.0.0, whichever is sooner."""
+
     fi_allreduce_fusion_max_size_mb: float | None = None
     """The threshold of the communicated tensor sizes under which
     vllm should use flashinfer fused allreduce. Specified as a
@@ -136,7 +161,7 @@ class PassConfig:
             },
         }, where key is the device capability"""
     enable_qk_norm_rope_fusion: bool = False
-    """Whether to enable the fused Q/K RMSNorm + RoPE pass."""
+    """Enable fused Q/K RMSNorm + RoPE pass."""
 
     # TODO(luka) better pass enabling system.
 
@@ -174,6 +199,13 @@ class PassConfig:
         return InductorPass.hash_dict(asdict(self))
 
     @field_validator(
+        "fuse_norm_quant",
+        "fuse_act_quant",
+        "fuse_attn_quant",
+        "eliminate_noops",
+        "enable_sp",
+        "fuse_gemm_comms",
+        "fuse_allreduce_rms",
         "enable_fusion",
         "enable_attn_fusion",
         "enable_noop",
@@ -190,18 +222,71 @@ class PassConfig:
         return handler(value)
 
     def __post_init__(self) -> None:
-        if not self.enable_noop:
-            if self.enable_fusion:
+        # Handle deprecation and defaults
+
+        # Map old flags to new flags and issue warnings
+        handle_deprecated(
+            self,
+            "enable_fusion",
+            ["fuse_norm_quant", "fuse_act_quant"],
+            "v0.13.0 or v1.0.0, whichever is sooner",
+        )
+
+        handle_deprecated(
+            self,
+            "enable_attn_fusion",
+            "fuse_attn_quant",
+            "v0.13.0 or v1.0.0, whichever is sooner",
+        )
+
+        handle_deprecated(
+            self,
+            "enable_sequence_parallelism",
+            "enable_sp",
+            "v0.13.0 or v1.0.0, whichever is sooner",
+        )
+
+        handle_deprecated(
+            self,
+            "enable_async_tp",
+            "fuse_gemm_comms",
+            "v0.13.0 or v1.0.0, whichever is sooner",
+        )
+
+        handle_deprecated(
+            self,
+            "enable_fi_allreduce_fusion",
+            "fuse_allreduce_rms",
+            "v0.13.0 or v1.0.0, whichever is sooner",
+        )
+
+        handle_deprecated(
+            self,
+            "enable_noop",
+            "eliminate_noops",
+            "v0.13.0 or v1.0.0, whichever is sooner",
+        )
+
+        # Force old flags to None to ensure they are not used
+        self.enable_fusion = None
+        self.enable_attn_fusion = None
+        self.enable_noop = None
+        self.enable_sequence_parallelism = None
+        self.enable_async_tp = None
+        self.enable_fi_allreduce_fusion = None
+
+        if not self.eliminate_noops:
+            if self.fuse_norm_quant or self.fuse_act_quant:
                 logger.warning_once(
                     "Fusion enabled but reshape elimination disabled. "
                     "RMSNorm/SiluMul + quant (fp8) fusion might not work"
                 )
-            if self.enable_attn_fusion:
+            if self.fuse_attn_quant:
                 logger.warning_once(
                     "Fusion enabled but reshape elimination disabled. "
                     "Attention + quant (fp8) fusion might not work"
                 )
-            if self.enable_fi_allreduce_fusion:
+            if self.fuse_allreduce_rms:
                 logger.warning_once(
                     "Fusion enabled but reshape elimination disabled. "
                     "Allreduce + rms norm + quant (fp8) fusion might not work"
@@ -873,7 +958,7 @@ class CompilationConfig:
             self.set_splitting_ops_for_inductor_graph_partition()
             return
 
-        if self.pass_config.enable_attn_fusion:
+        if self.pass_config.fuse_attn_quant:
             # here use_inductor_graph_partition is False
             self.set_splitting_ops_for_attn_fusion()
             return
@@ -915,12 +1000,12 @@ class CompilationConfig:
             self.splitting_ops = list(self._attention_ops)
 
     def set_splitting_ops_for_attn_fusion(self):
-        assert self.pass_config.enable_attn_fusion
+        assert self.pass_config.fuse_attn_quant
         if self.splitting_ops is None:
             self.splitting_ops = []
             if self.cudagraph_mode.has_piecewise_cudagraphs():
                 logger.warning_once(
-                    "enable_attn_fusion is incompatible with piecewise "
+                    "fuse_attn_quant is incompatible with piecewise "
                     "cudagraph when use_inductor_graph_partition is off. "
                     "In this case, splitting_ops will be set to empty "
                     "list, and cudagraph_mode will be set to FULL. "
@@ -931,8 +1016,7 @@ class CompilationConfig:
                 self.cudagraph_mode = CUDAGraphMode.FULL
 
         assert not self.splitting_ops_contain_attention(), (
-            "attention ops should not be in splitting_ops "
-            "when enable_attn_fusion is True"
+            "attention ops should not be in splitting_ops when fuse_attn_quant is True"
         )
 
     def splitting_ops_contain_attention(self) -> bool:
@@ -1008,7 +1092,7 @@ class CompilationConfig:
         self, uniform_decode_query_len: int, tensor_parallel_size: int
     ):
         multiple_of = uniform_decode_query_len
-        if tensor_parallel_size > 1 and self.pass_config.enable_sequence_parallelism:
+        if tensor_parallel_size > 1 and self.pass_config.enable_sp:
             multiple_of = max(uniform_decode_query_len, tensor_parallel_size)
             if (
                 multiple_of % uniform_decode_query_len != 0

vllm/config/scheduler.py

@@ -28,6 +28,19 @@ SchedulerPolicy = Literal["fcfs", "priority"]
 class SchedulerConfig:
     """Scheduler configuration."""
 
+    max_model_len: InitVar[int]
+    """Maximum length of a sequence (including prompt and generated text).
+
+    Note: This is stored in the ModelConfig, and is used only here to
+    provide fallbacks and validate other attributes."""
+
+    is_encoder_decoder: InitVar[bool]
+    """True if the model is an encoder-decoder model.
+
+    Note: This is stored in the ModelConfig, and is used only here to
+    disable chunked prefill and prefix caching for encoder-decoder models.
+    """
+
     DEFAULT_MAX_NUM_BATCHED_TOKENS: ClassVar[int] = 2048
     DEFAULT_MAX_NUM_SEQS: ClassVar[int] = 128
 
@@ -73,19 +86,6 @@ class SchedulerConfig:
     is_multimodal_model: bool = False
     """True if the model is multimodal."""
 
-    max_model_len: InitVar[int] = 8192
-    """Maximum length of a sequence (including prompt and generated text).
-
-    Note: This is stored in the ModelConfig, and is used only here to
-    provide fallbacks and validate other attributes."""
-
-    is_encoder_decoder: InitVar[bool] = False
-    """True if the model is an encoder-decoder model.
-
-    Note: This is stored in the ModelConfig, and is used only here to
-    disable chunked prefill and prefix caching for encoder-decoder models.
-    """
-
     # TODO (ywang96): Make this configurable.
     max_num_encoder_input_tokens: int = Field(init=False)
     """Multimodal encoder compute budget, only used in V1.
@@ -141,6 +141,17 @@ class SchedulerConfig:
     while a larger value (e.g., 10) reduces host overhead and may increase throughput
     by batching multiple tokens before sending."""
 
+    @staticmethod
+    def default_factory(**kwargs):
+        """
+        Factory method to create `SchedulerConfig` with default values for `InitVar`s.
+        """
+        if "max_model_len" not in kwargs:
+            kwargs["max_model_len"] = 8192
+        if "is_encoder_decoder" not in kwargs:
+            kwargs["is_encoder_decoder"] = False
+        return SchedulerConfig(**kwargs)
+
     def get_scheduler_cls(self) -> type["SchedulerInterface"]:
         if self.scheduler_cls is None:
             if self.async_scheduling:
@@ -284,8 +295,3 @@ class SchedulerConfig:
             )
 
         return self
-
-    def __getattribute__(self, name: str) -> Any:
-        if name == "max_model_len" or name == "is_encoder_decoder":
-            raise AttributeError(f"{name} is an init-only parameter. ")
-        return object.__getattribute__(self, name)

vllm/config/utils.py

@@ -19,6 +19,10 @@ import torch
 from pydantic.fields import FieldInfo
 from typing_extensions import runtime_checkable
 
+from vllm.logger import init_logger
+
+logger = init_logger(__name__)
+
 if TYPE_CHECKING:
     from _typeshed import DataclassInstance
 else:
@@ -293,3 +297,28 @@ def get_hash_factors(config: ConfigT, ignored_factors: set[str]) -> dict[str, ob
 def hash_factors(items: dict[str, object]) -> str:
     """Return a SHA-256 hex digest of the canonical items structure."""
     return hashlib.sha256(json.dumps(items, sort_keys=True).encode()).hexdigest()
+
+
+def handle_deprecated(
+    config: ConfigT,
+    old_name: str,
+    new_name_or_names: str | list[str],
+    removal_version: str,
+) -> None:
+    old_val = getattr(config, old_name)
+    if old_val is None:
+        return
+
+    if isinstance(new_name_or_names, str):
+        new_names = [new_name_or_names]
+    else:
+        new_names = new_name_or_names
+
+    msg = (
+        f"{old_name} is deprecated and will be removed in {removal_version}. "
+        f"Use {', '.join(new_names)} instead."
+    )
+    logger.warning(msg)
+
+    for new_name in new_names:
+        setattr(config, new_name, old_val)

vllm/config/vllm.py

@@ -83,22 +83,33 @@ IS_DENSE = False
 # See https://github.com/vllm-project/vllm/issues/25689.
 
 
-def enable_fusion(cfg: "VllmConfig") -> bool:
-    """Returns True if RMS norm or quant FP8 is enabled."""
+def enable_norm_fusion(cfg: "VllmConfig") -> bool:
+    """Enable if either RMS norm or quant FP8 custom op is active;
+    otherwise Inductor handles fusion."""
+
     return cfg.compilation_config.is_custom_op_enabled(
         "rms_norm"
     ) or cfg.compilation_config.is_custom_op_enabled("quant_fp8")
 
 
+def enable_act_fusion(cfg: "VllmConfig") -> bool:
+    """Enable if either SiLU+Mul or quant FP8 custom op is active;
+    otherwise Inductor handles fusion."""
+    return cfg.compilation_config.is_custom_op_enabled(
+        "silu_and_mul"
+    ) or cfg.compilation_config.is_custom_op_enabled("quant_fp8")
+
+
 OPTIMIZATION_LEVEL_00 = {
     "compilation_config": {
         "pass_config": {
-            "enable_noop": False,
-            "enable_fusion": False,
-            "enable_fi_allreduce_fusion": False,
-            "enable_attn_fusion": False,
-            "enable_sequence_parallelism": False,
-            "enable_async_tp": False,
+            "eliminate_noops": False,
+            "fuse_norm_quant": False,
+            "fuse_act_quant": False,
+            "fuse_allreduce_rms": False,
+            "fuse_attn_quant": False,
+            "enable_sp": False,
+            "fuse_gemm_comms": False,
         },
         "cudagraph_mode": CUDAGraphMode.NONE,
         "use_inductor_graph_partition": False,
@@ -107,12 +118,13 @@ OPTIMIZATION_LEVEL_00 = {
 OPTIMIZATION_LEVEL_01 = {
     "compilation_config": {
         "pass_config": {
-            "enable_noop": True,
-            "enable_fusion": enable_fusion,
-            "enable_fi_allreduce_fusion": False,
-            "enable_attn_fusion": False,
-            "enable_sequence_parallelism": False,
-            "enable_async_tp": False,
+            "eliminate_noops": True,
+            "fuse_norm_quant": enable_norm_fusion,
+            "fuse_act_quant": enable_act_fusion,
+            "fuse_allreduce_rms": False,
+            "fuse_attn_quant": False,
+            "enable_sp": False,
+            "fuse_gemm_comms": False,
         },
         "cudagraph_mode": CUDAGraphMode.PIECEWISE,
         "use_inductor_graph_partition": False,
@@ -121,12 +133,13 @@ OPTIMIZATION_LEVEL_01 = {
 OPTIMIZATION_LEVEL_02 = {
     "compilation_config": {
         "pass_config": {
-            "enable_noop": True,
-            "enable_fusion": enable_fusion,
-            "enable_fi_allreduce_fusion": False,
-            "enable_attn_fusion": IS_QUANTIZED,
-            "enable_sequence_parallelism": IS_DENSE,
-            "enable_async_tp": IS_DENSE,
+            "eliminate_noops": True,
+            "fuse_norm_quant": enable_norm_fusion,
+            "fuse_act_quant": enable_act_fusion,
+            "fuse_allreduce_rms": False,
+            "fuse_attn_quant": IS_QUANTIZED,
+            "enable_sp": IS_DENSE,
+            "fuse_gemm_comms": IS_DENSE,
         },
         "cudagraph_mode": CUDAGraphMode.FULL_AND_PIECEWISE,
         "use_inductor_graph_partition": False,
@@ -135,12 +148,13 @@ OPTIMIZATION_LEVEL_02 = {
 OPTIMIZATION_LEVEL_03 = {
     "compilation_config": {
         "pass_config": {
-            "enable_noop": True,
-            "enable_fusion": enable_fusion,
-            "enable_fi_allreduce_fusion": False,
-            "enable_attn_fusion": IS_QUANTIZED,
-            "enable_sequence_parallelism": IS_DENSE,
-            "enable_async_tp": IS_DENSE,
+            "eliminate_noops": True,
+            "fuse_norm_quant": enable_norm_fusion,
+            "fuse_act_quant": enable_act_fusion,
+            "fuse_allreduce_rms": False,
+            "fuse_attn_quant": IS_QUANTIZED,
+            "enable_sp": IS_DENSE,
+            "fuse_gemm_comms": IS_DENSE,
         },
         "cudagraph_mode": CUDAGraphMode.FULL_AND_PIECEWISE,
         "use_inductor_graph_partition": False,
@@ -170,7 +184,9 @@ class VllmConfig:
     """Cache configuration."""
     parallel_config: ParallelConfig = Field(default_factory=ParallelConfig)
     """Parallel configuration."""
-    scheduler_config: SchedulerConfig = Field(default_factory=SchedulerConfig)
+    scheduler_config: SchedulerConfig = Field(
+        default_factory=SchedulerConfig.default_factory,
+    )
     """Scheduler configuration."""
     device_config: DeviceConfig = Field(default_factory=DeviceConfig)
     """Device configuration."""
@@ -643,9 +659,9 @@ class VllmConfig:
 
         # async tp is built on top of sequence parallelism
         # and requires it to be enabled.
-        if self.compilation_config.pass_config.enable_async_tp:
-            self.compilation_config.pass_config.enable_sequence_parallelism = True
-        if self.compilation_config.pass_config.enable_sequence_parallelism:
+        if self.compilation_config.pass_config.fuse_gemm_comms:
+            self.compilation_config.pass_config.enable_sp = True
+        if self.compilation_config.pass_config.enable_sp:
             if "-rms_norm" in self.compilation_config.custom_ops:
                 logger.warning(
                     "RMS norm force disabled, sequence parallelism might break"
@@ -795,7 +811,7 @@ class VllmConfig:
         # Do this after all the updates to compilation_config.mode
         self.compilation_config.set_splitting_ops_for_v1()
 
-        if self.compilation_config.pass_config.enable_sequence_parallelism:
+        if self.compilation_config.pass_config.enable_sp:
             # With pipeline parallelism or dynamo partitioning,
             # native rms norm tracing errors due to incorrect residual shape.
             # Use custom rms norm to unblock. In the future,
@@ -1060,7 +1076,7 @@ class VllmConfig:
 
             if (
                 self.parallel_config.tensor_parallel_size > 1
-                and self.compilation_config.pass_config.enable_sequence_parallelism
+                and self.compilation_config.pass_config.enable_sp
             ):
                 cudagraph_capture_sizes = self.update_sizes_for_sequence_parallelism(
                     cudagraph_capture_sizes

vllm/engine/arg_utils.py

@@ -420,10 +420,6 @@ class EngineArgs:
     )
     _api_process_count: int = ParallelConfig._api_process_count
     _api_process_rank: int = ParallelConfig._api_process_rank
-    num_redundant_experts: int = EPLBConfig.num_redundant_experts
-    eplb_window_size: int = EPLBConfig.window_size
-    eplb_step_interval: int = EPLBConfig.step_interval
-    eplb_log_balancedness: bool = EPLBConfig.log_balancedness
     max_parallel_loading_workers: int | None = (
         ParallelConfig.max_parallel_loading_workers
     )
@@ -1581,16 +1577,6 @@ class EngineArgs:
             )
             self.disable_nccl_for_dp_synchronization = True
 
-        # Forward the deprecated CLI args to the EPLB config.
-        if self.num_redundant_experts is not None:
-            self.eplb_config.num_redundant_experts = self.num_redundant_experts
-        if self.eplb_window_size is not None:
-            self.eplb_config.window_size = self.eplb_window_size
-        if self.eplb_step_interval is not None:
-            self.eplb_config.step_interval = self.eplb_step_interval
-        if self.eplb_log_balancedness is not None:
-            self.eplb_config.log_balancedness = self.eplb_log_balancedness
-
         parallel_config = ParallelConfig(
             pipeline_parallel_size=self.pipeline_parallel_size,
             tensor_parallel_size=self.tensor_parallel_size,

vllm/entrypoints/openai/speech_to_text.py

@@ -37,7 +37,7 @@ from vllm.inputs.data import PromptType
 from vllm.logger import init_logger
 from vllm.model_executor.models import SupportsTranscription
 from vllm.outputs import RequestOutput
-from vllm.transformers_utils.tokenizer import get_tokenizer
+from vllm.tokenizers import get_tokenizer
 from vllm.utils.import_utils import PlaceholderModule
 
 try:

vllm/entrypoints/openai/tool_parsers/mistral_tool_parser.py

@@ -80,7 +80,7 @@ class MistralToolParser(ToolParser):
         self.tool_call_regex = re.compile(r"\[{.*}\]", re.DOTALL)
         if _is_fn_name_regex_support(self.model_tokenizer):
             self.fn_name_regex = re.compile(
-                r"([a-zA-Z0-9_-]+)(\{[\s\S]*?\})(?=\s*$|,|\s)?", re.DOTALL
+                r"([a-zA-Z0-9_-]+)(\{[\s\S]*?\}+)", re.DOTALL
             )
         else:
             self.fn_name_regex = None

vllm/entrypoints/renderer.py

@@ -33,7 +33,7 @@ class RenderConfig:
     `0` yields an empty list (and skips embeds).
     `-1` maps to `model_config.max_model_len`."""
 
-    add_special_tokens: bool | None = True
+    add_special_tokens: bool = True
     """Whether to add model-specific special tokens during tokenization."""
 
     cache_salt: str | None = None
@@ -315,7 +315,7 @@ class CompletionRenderer(BaseRenderer):
         text: str,
         max_length: int | None,
         truncate_prompt_tokens: int | None,
-        add_special_tokens: bool | None,
+        add_special_tokens: bool,
         cache_salt: str | None,
     ) -> EngineTokensPrompt:
         """Tokenize text input asynchronously."""

vllm/entrypoints/score_utils.py

@@ -19,7 +19,7 @@ from vllm.inputs import TokensPrompt
 from vllm.model_executor.models.interfaces import supports_score_template
 from vllm.multimodal.inputs import MultiModalDataDict
 from vllm.outputs import PoolingRequestOutput
-from vllm.transformers_utils.tokenizer import TokenizerLike
+from vllm.tokenizers import TokenizerLike
 
 ScoreContentPartParam: TypeAlias = (
     ChatCompletionContentPartImageParam | ChatCompletionContentPartImageEmbedsParam

vllm/model_executor/models/deepseek_mtp.py

@@ -346,11 +346,16 @@ class DeepSeekMTP(nn.Module, SupportsPP, DeepseekV2MixtureOfExperts):
                     # Use expert_params_mapping to locate the destination
                     # param and delegate to its expert-aware weight_loader
                     # with expert_id.
+                    is_expert_weight = False
                     for mapping in expert_params_mapping:
                         param_name, weight_name, expert_id, shard_id = mapping
                         if weight_name not in chunk_name:
                             continue
 
+                        # Anyway, this is an expert weight and should not be
+                        # attempted to load as other weights later
+                        is_expert_weight = True
+
                         # Do not modify `name` since the loop may continue here
                         # Instead, create a new variable
                         name_mapped = chunk_name.replace(weight_name, param_name)
@@ -377,6 +382,12 @@ class DeepSeekMTP(nn.Module, SupportsPP, DeepseekV2MixtureOfExperts):
                                 loaded_params.add(name_mapped)
                             break
                     else:
+                        if is_expert_weight:
+                            # We've checked that this is an expert weight
+                            # However it's not mapped locally to this rank
+                            # So we simply skip it
+                            continue
+
                         # Skip loading extra bias for GPTQ models.
                         if name.endswith(".bias") and name not in params_dict:
                             continue

vllm/model_executor/models/deepseek_v2.py

@@ -1135,6 +1135,8 @@ class DeepseekV2DecoderLayer(nn.Module):
             dim == 0 for dim in (qk_nope_head_dim, qk_rope_head_dim)
         )
 
+        self.use_mha = use_mha
+
         if use_mha:
             attn_cls = DeepseekAttention
         elif model_config.use_mla:
@@ -1196,11 +1198,14 @@ class DeepseekV2DecoderLayer(nn.Module):
             hidden_states = self.input_layernorm(hidden_states)
         else:
             hidden_states, residual = self.input_layernorm(hidden_states, residual)
-        hidden_states = self.self_attn(
-            positions=positions,
-            hidden_states=hidden_states,
-            llama_4_scaling=llama_4_scaling,
-        )
+
+        attn_kwargs = {
+            "positions": positions,
+            "hidden_states": hidden_states,
+        }
+        if not self.use_mha:
+            attn_kwargs["llama_4_scaling"] = llama_4_scaling
+        hidden_states = self.self_attn(**attn_kwargs)
 
         if (
             not isinstance(self.self_attn, DeepseekAttention)

vllm/model_executor/models/idefics3.py

@@ -338,6 +338,7 @@ class Idefics3MultiModalProcessor(BaseMultiModalProcessor[Idefics3ProcessingInfo
             prompt_ids = self._apply_hf_processor_tokens_only(prompt_ids)
             return BatchFeature(dict(input_ids=[prompt_ids]), tensor_type="pt")
 
+        mm_kwargs = {"input_data_format": "channels_last", **mm_kwargs}
         processed_outputs = super()._call_hf_processor(
             prompt,
             mm_data,

vllm/model_executor/models/nano_nemotron_vl.py

@@ -75,7 +75,6 @@ from vllm.multimodal.profiling import BaseDummyInputsBuilder
 from vllm.sequence import IntermediateTensors
 from vllm.tokenizers import TokenizerLike, cached_tokenizer_from_config
 from vllm.transformers_utils.configs.radio import RadioConfig
-from vllm.transformers_utils.tokenizer import encode_tokens
 from vllm.utils.tensor_schema import TensorSchema, TensorShape
 
 from .utils import _merge_multimodal_embeddings
@@ -454,14 +453,12 @@ class NanoNemotronVLProcessor(BaseNanoNemotronVLProcessor):
 
         # Pre-tokenize special tokens for video processing
         # to avoid repeated tokenization
-        self._img_start_token_ids = encode_tokens(
-            tokenizer, IMG_START, add_special_tokens=False
+        self._img_start_token_ids = tokenizer.encode(
+            IMG_START, add_special_tokens=False
         )
-        self._img_end_token_ids = encode_tokens(
-            tokenizer, IMG_END, add_special_tokens=False
-        )
-        self._img_context_token_ids = encode_tokens(
-            tokenizer, IMG_CONTEXT, add_special_tokens=False
+        self._img_end_token_ids = tokenizer.encode(IMG_END, add_special_tokens=False)
+        self._img_context_token_ids = tokenizer.encode(
+            IMG_CONTEXT, add_special_tokens=False
         )
 
     @property
@@ -1179,14 +1176,12 @@ class NemotronH_Nano_VL_V2(
         # Pre-tokenize special tokens for video processing
         # to avoid repeated tokenization
         tokenizer = cached_tokenizer_from_config(vllm_config.model_config)
-        self._img_start_token_ids = encode_tokens(
-            tokenizer, IMG_START, add_special_tokens=False
+        self._img_start_token_ids = tokenizer.encode(
+            IMG_START, add_special_tokens=False
         )
-        self._img_end_token_ids = encode_tokens(
-            tokenizer, IMG_END, add_special_tokens=False
-        )
-        self._img_context_token_ids = encode_tokens(
-            tokenizer, IMG_CONTEXT, add_special_tokens=False
+        self._img_end_token_ids = tokenizer.encode(IMG_END, add_special_tokens=False)
+        self._img_context_token_ids = tokenizer.encode(
+            IMG_CONTEXT, add_special_tokens=False
         )
 
     def pixel_shuffle(self, x, scale_factor=0.5):

vllm/model_executor/models/qwen2_5_omni_thinker.py

@@ -88,7 +88,6 @@ from vllm.multimodal.processing import (
 )
 from vllm.multimodal.profiling import BaseDummyInputsBuilder
 from vllm.sequence import IntermediateTensors
-from vllm.transformers_utils.tokenizer import encode_tokens
 from vllm.utils.tensor_schema import TensorSchema, TensorShape
 
 from .interfaces import (
@@ -591,7 +590,7 @@ class Qwen2_5OmniThinkerMultiModalProcessor(
                     tokenization_kwargs=tokenization_kwargs,
                 )
             tokenizer = self.info.get_tokenizer()
-            prompt_ids = encode_tokens(tokenizer, prompt)
+            prompt_ids = tokenizer.encode(prompt)
         else:
             prompt_ids = self._apply_hf_processor_tokens_only(prompt)
 

vllm/multimodal/processing.py

@@ -25,7 +25,6 @@ from typing_extensions import TypeVar, assert_never
 from vllm.logger import init_logger
 from vllm.tokenizers import TokenizerLike
 from vllm.transformers_utils.processor import cached_processor_from_config
-from vllm.transformers_utils.tokenizer import decode_tokens, encode_tokens
 from vllm.utils.collection_utils import flatten_2d_lists, full_groupby
 from vllm.utils.func_utils import get_allowed_kwarg_only_overrides
 from vllm.utils.jsontree import JSONTree, json_map_leaves
@@ -80,9 +79,9 @@ def _cached_encode(
     tokenizer: TokenizerLike,
     text: str,
     *,
-    add_special_tokens: bool | None = None,
+    add_special_tokens: bool = True,
 ) -> list[int]:
-    return encode_tokens(tokenizer, text, add_special_tokens=add_special_tokens)
+    return tokenizer.encode(text, add_special_tokens=add_special_tokens)
 
 
 @lru_cache(maxsize=2048)
@@ -90,11 +89,9 @@ def _cached_decode(
     tokenizer: TokenizerLike,
     token_ids: tuple[int, ...],
     *,
-    skip_special_tokens: bool | None = None,
+    skip_special_tokens: bool = False,
 ) -> str:
-    return decode_tokens(
-        tokenizer, list(token_ids), skip_special_tokens=skip_special_tokens
-    )
+    return tokenizer.decode(list(token_ids), skip_special_tokens=skip_special_tokens)
 
 
 def _seq2text(
@@ -110,7 +107,7 @@ def _seq2text(
         raise ValueError("You cannot decode tokens when `skip_tokenizer_init=True`")
 
     if not use_cache:
-        return decode_tokens(tokenizer, seq)
+        return tokenizer.decode(seq)
 
     return _cached_decode(tokenizer, tuple(seq))
 
@@ -126,7 +123,7 @@ def _seq2tokens(
             raise ValueError("You cannot encode text when `skip_tokenizer_init=True`")
 
         if not use_cache:
-            return encode_tokens(tokenizer, seq, add_special_tokens=False)
+            return tokenizer.encode(seq, add_special_tokens=False)
 
         return _cached_encode(tokenizer, seq, add_special_tokens=False)
 
@@ -2198,8 +2195,8 @@ class EncDecMultiModalProcessor(BaseMultiModalProcessor[_I]):
         tokenizer = self.info.get_tokenizer()
         decoder_prompt_raw = self.create_decoder_prompt(prompt, mm_data)
         if isinstance(decoder_prompt_raw, str):
-            decoder_prompt_ids = encode_tokens(
-                tokenizer, decoder_prompt_raw, add_special_tokens=False
+            decoder_prompt_ids = tokenizer.encode(
+                decoder_prompt_raw, add_special_tokens=False
             )
         else:
             decoder_prompt_ids = decoder_prompt_raw

vllm/transformers_utils/tokenizer.py

@@ -4,6 +4,8 @@
 import warnings
 from typing import Any
 
+from typing_extensions import deprecated
+
 from vllm.logger import init_logger
 from vllm.tokenizers import TokenizerLike
 
@@ -73,6 +75,7 @@ def __getattr__(name: str):
     raise AttributeError(f"module {__name__!r} has no attribute {name!r}")
 
 
+@deprecated("Will be removed in v0.13. Please use `tokenizer.decode()` instead.")
 def decode_tokens(
     tokenizer: TokenizerLike,
     token_ids: list[int],
@@ -94,6 +97,7 @@ def decode_tokens(
     return tokenizer.decode(token_ids, **kw_args)
 
 
+@deprecated("Will be removed in v0.13. Please use `tokenizer.encode()` instead.")
 def encode_tokens(
     tokenizer: TokenizerLike,
     text: str,

vllm/v1/core/sched/request_queue.py

@@ -137,31 +137,30 @@ class PriorityRequestQueue(RequestQueue):
     """
     A priority queue that supports heap operations.
 
-    Requests with a smaller value of `priority` are processed first.
+    Respects the ordering defined in the Request class, where
+    requests with a smaller value of `priority` are processed first.
     If multiple requests have the same priority, the one with the earlier
     `arrival_time` is processed first.
     """
 
     def __init__(self) -> None:
-        self._heap: list[tuple[int, float, Request]] = []
+        self._heap: list[Request] = []
 
     def add_request(self, request: Request) -> None:
         """Add a request to the queue according to priority policy."""
-        heapq.heappush(self._heap, (request.priority, request.arrival_time, request))
+        heapq.heappush(self._heap, request)
 
     def pop_request(self) -> Request:
         """Pop a request from the queue according to priority policy."""
         if not self._heap:
             raise IndexError("pop from empty heap")
-        _, _, request = heapq.heappop(self._heap)
-        return request
+        return heapq.heappop(self._heap)
 
     def peek_request(self) -> Request:
         """Peek at the next request in the queue without removing it."""
         if not self._heap:
             raise IndexError("peek from empty heap")
-        _, _, request = self._heap[0]
-        return request
+        return self._heap[0]
 
     def prepend_request(self, request: Request) -> None:
         """Add a request to the queue according to priority policy.
@@ -180,15 +179,13 @@ class PriorityRequestQueue(RequestQueue):
 
     def remove_request(self, request: Request) -> None:
         """Remove a specific request from the queue."""
-        self._heap = [(p, t, r) for p, t, r in self._heap if r != request]
+        self._heap.remove(request)
         heapq.heapify(self._heap)
 
     def remove_requests(self, requests: Iterable[Request]) -> None:
         """Remove multiple specific requests from the queue."""
-        requests_to_remove = set(requests)
-        self._heap = [
-            (p, t, r) for p, t, r in self._heap if r not in requests_to_remove
-        ]
+        requests_to_remove = requests if isinstance(requests, set) else set(requests)
+        self._heap = [r for r in self._heap if r not in requests_to_remove]
         heapq.heapify(self._heap)
 
     def __bool__(self) -> bool:
@@ -203,8 +200,7 @@ class PriorityRequestQueue(RequestQueue):
         """Iterate over the queue according to priority policy."""
         heap_copy = self._heap[:]
         while heap_copy:
-            _, _, request = heapq.heappop(heap_copy)
-            yield request
+            yield heapq.heappop(heap_copy)
 
     def __reversed__(self) -> Iterator[Request]:
         """Iterate over the queue in reverse priority order."""

vllm/v1/request.py

@@ -227,6 +227,19 @@ class Request:
         events, self.events = self.events, []
         return events
 
+    def __lt__(self, other: "Request") -> bool:
+        """
+        Compare two requests based on priority, arrival time, and request ID.
+        Used in priority scheduling.
+        """
+        if self.priority != other.priority:
+            return self.priority < other.priority
+        if self.arrival_time != other.arrival_time:
+            return self.arrival_time < other.arrival_time
+        if self.request_id != other.request_id:
+            return self.request_id < other.request_id
+        return id(self) < id(other)
+
 
 class RequestStatus(enum.IntEnum):
     """Status of a request."""

vllm/v1/sample/logits_processor/builtin.py

@@ -110,7 +110,7 @@ class MinPLogitsProcessor(LogitsProcessor):
         # Identify valid tokens using threshold comparison
         invalid_token_mask = probability_values < adjusted_min_p
         # Apply mask using boolean indexing
-        logits[invalid_token_mask] = -float("inf")
+        logits.masked_fill_(invalid_token_mask, -float("inf"))
         return logits
 
 
@@ -178,6 +178,10 @@ class MinTokensLogitsProcessor(LogitsProcessor):
             self._device_tensor([], torch.int32),
         )
 
+        self.neg_inf_tensor = torch.tensor(
+            -float("inf"), dtype=torch.float32, device=self.device
+        )
+
     def is_argmax_invariant(self) -> bool:
         """By censoring stop tokens, min-tokens can change the outcome
         of the argmax operation in greedy sampling."""
@@ -229,7 +233,7 @@ class MinTokensLogitsProcessor(LogitsProcessor):
     def apply(self, logits: torch.Tensor) -> torch.Tensor:
         if self.min_toks:
             # Inhibit EOS token for requests which have not reached min length
-            logits[self.logits_slice] = -float("inf")
+            logits.index_put_(self.logits_slice, self.neg_inf_tensor)
         return logits
 
 

vllm/v1/worker/gpu_model_runner.py

@@ -2417,10 +2417,7 @@ class GPUModelRunner(
         # Pad tokens to multiple of tensor_parallel_size when
         # enabled collective fusion for SP
         tp_size = self.vllm_config.parallel_config.tensor_parallel_size
-        if (
-            self.compilation_config.pass_config.enable_sequence_parallelism
-            and tp_size > 1
-        ):
+        if self.compilation_config.pass_config.enable_sp and tp_size > 1:
             return round_up(num_scheduled_tokens, tp_size)
         return num_scheduled_tokens
 
@@ -4000,7 +3997,7 @@ class GPUModelRunner(
                 num_reqs=num_reqs_padded,
                 max_query_len=max_query_len,
                 ubatch_slices=ubatch_slices,
-                for_cudagraph_capture=True,
+                for_cudagraph_capture=is_graph_capturing,
             )
 
         with self.maybe_dummy_run_with_lora(

vllm/v1/worker/gpu_worker.py

@@ -552,7 +552,7 @@ class Worker(WorkerBase):
 
         if (
             parallel_config.pipeline_parallel_size > 1
-            and compilation_config.pass_config.enable_sequence_parallelism
+            and compilation_config.pass_config.enable_sp
             and forward_pass
         ):
             # currently only supported by V1 GPUModelRunner

vllm/v1/worker/utils.py

@@ -342,7 +342,7 @@ def is_residual_scattered_for_sp(
       partition), SP is always applied
     - Otherwise, SP is only applied for specific shapes in compile_sizes
     """
-    if not vllm_config.compilation_config.pass_config.enable_sequence_parallelism:
+    if not vllm_config.compilation_config.pass_config.enable_sp:
         return False
 
     tp = vllm_config.parallel_config.tensor_parallel_size