Support encoder-only models without KV-Cache

examples/offline_inference/prithvi_geospatial_mae.py

@@ -3,12 +3,12 @@
 import argparse
 import datetime
 import os
-import re
 from typing import Union
 
 import albumentations
 import numpy as np
 import rasterio
+import regex as re
 import torch
 from einops import rearrange
 from terratorch.datamodules import Sen1Floods11NonGeoDataModule

tests/conftest.py

@@ -1062,8 +1062,17 @@ def score(
         return [req_output.outputs.score for req_output in req_outputs]
 
     def apply_model(self, func: Callable[[nn.Module], _R]) -> list[_R]:
-        executor = self.llm.llm_engine.model_executor
-        return executor.apply_model(func)
+        if hasattr(self.llm.llm_engine, "model_executor"):
+            # This works either in V0 or in V1 with
+            # VLLM_ENABLE_V1_MULTIPROCESSING=0
+            executor = self.llm.llm_engine.model_executor
+            return executor.apply_model(func)
+
+        # This works in V1 with VLLM_ALLOW_INSECURE_SERIALIZATION=1
+        def _apply_model(self):
+            return func(self.get_model())
+
+        return self.llm.llm_engine.collective_rpc(_apply_model)
 
     def __enter__(self):
         return self

tests/model_executor/test_model_load_with_params.py

@@ -22,10 +22,12 @@
 
 @pytest.mark.skipif(current_platform.is_rocm(),
                     reason="Xformers backend is not supported on ROCm.")
-def test_model_loading_with_params(vllm_runner):
+def test_model_loading_with_params(vllm_runner, monkeypatch):
     """
     Test parameter weight loading with tp>1.
     """
+    # to use apply_model
+    monkeypatch.setenv("VLLM_ALLOW_INSECURE_SERIALIZATION", "1")
     with vllm_runner(model_name=MODEL_NAME,
                      revision=REVISION,
                      dtype="float16",
@@ -61,10 +63,12 @@ def check_model(model):
 
 @pytest.mark.skipif(current_platform.is_rocm(),
                     reason="Xformers backend is not supported on ROCm.")
-def test_roberta_model_loading_with_params(vllm_runner):
+def test_roberta_model_loading_with_params(vllm_runner, monkeypatch):
     """
     Test parameter weight loading with tp>1.
     """
+    # to use apply_model
+    monkeypatch.setenv("VLLM_ALLOW_INSECURE_SERIALIZATION", "1")
     with vllm_runner(model_name=MODEL_NAME_ROBERTA,
                      revision=REVISION_ROBERTA,
                      dtype="float16",
@@ -101,10 +105,12 @@ def check_model(model):
 
 @pytest.mark.skipif(current_platform.is_rocm(),
                     reason="Xformers backend is not supported on ROCm.")
-def test_facebook_roberta_model_loading_with_params(vllm_runner):
+def test_facebook_roberta_model_loading_with_params(vllm_runner, monkeypatch):
     """
     Test loading roberta-base model with no lm_head.
     """
+    # to use apply_model
+    monkeypatch.setenv("VLLM_ALLOW_INSECURE_SERIALIZATION", "1")
     model_name = "FacebookAI/roberta-base"
     with vllm_runner(model_name=model_name,
                      dtype="float16",

tests/models/language/pooling/test_embedding.py

@@ -39,17 +39,9 @@ def v1(run_with_both_engines):
         pytest.param("ssmits/Qwen2-7B-Instruct-embed-base",
                      marks=[pytest.mark.skip_v0, pytest.mark.cpu_model]),
         # [Encoder-only]
-        pytest.param(
-            "BAAI/bge-base-en-v1.5",
-            marks=[
-                # CPU only supports V1
-                pytest.mark.core_model,
-                pytest.mark.skip_v1
-            ]),
-        pytest.param("sentence-transformers/all-MiniLM-L12-v2",
-                     marks=[pytest.mark.skip_v1]),
-        pytest.param("intfloat/multilingual-e5-small",
-                     marks=[pytest.mark.skip_v1]),
+        pytest.param("BAAI/bge-base-en-v1.5", marks=[pytest.mark.core_model]),
+        pytest.param("sentence-transformers/all-MiniLM-L12-v2"),
+        pytest.param("intfloat/multilingual-e5-small"),
         pytest.param("Alibaba-NLP/gte-Qwen2-1.5B-instruct",
                      marks=[pytest.mark.skip_v1]),
         # [Cross-Encoder]

tests/models/language/pooling/test_jina.py

@@ -23,6 +23,14 @@
 ]
 
 
+@pytest.fixture(autouse=True)
+def v1(run_with_both_engines):
+    # Simple autouse wrapper to run both engines for each test
+    # This can be promoted up to conftest.py to run for every
+    # test in a package
+    pass
+
+
 @pytest.mark.parametrize("model_info", EMBEDDING_MODELS)
 def test_embed_models_mteb(hf_runner, vllm_runner,
                            model_info: EmbedModelInfo) -> None:

tests/v1/attention/utils.py

@@ -93,6 +93,7 @@ def create_common_attn_metadata(
         max_query_len=max_query_len,
         block_table_tensor=block_table_tensor,
         slot_mapping=slot_mapping,
+        causal=True,
     )
 
 

tests/v1/test_oracle.py

@@ -13,7 +13,6 @@
     "openai/whisper-large-v3",  # transcription
     "facebook/bart-large-cnn",  # encoder decoder
     "state-spaces/mamba-130m-hf",  # mamba1
-    "BAAI/bge-m3",  # embedding
 ]
 
 MODEL = "meta-llama/Llama-3.2-1B-Instruct"

tests/v1/test_utils.py

@@ -1,9 +1,8 @@
 # SPDX-License-Identifier: Apache-2.0
 # SPDX-FileCopyrightText: Copyright contributors to the vLLM project
 
-import re
-
 import pytest
+import regex as re
 import requests
 import torch
 

vllm/engine/arg_utils.py

@@ -1649,7 +1649,8 @@ def _set_default_args_v1(self, usage_context: UsageContext,
 
         if (self.max_num_seqs is None
                 and usage_context in default_max_num_seqs):
-            self.max_num_seqs = default_max_num_seqs[usage_context]
+            self.max_num_seqs = min(default_max_num_seqs[usage_context],
+                                    self.max_num_batched_tokens or sys.maxsize)
 
             logger.debug("Setting max_num_seqs to %d for %s usage context.",
                          self.max_num_seqs, use_context_value)

vllm/model_executor/models/bert.py

@@ -12,7 +12,6 @@
 from vllm.compilation.decorators import support_torch_compile
 from vllm.config import CacheConfig, PoolerConfig, VllmConfig
 from vllm.distributed import get_tensor_model_parallel_world_size
-from vllm.forward_context import get_forward_context
 from vllm.model_executor.layers.activation import get_act_fn
 from vllm.model_executor.layers.linear import (ColumnParallelLinear,
                                                QKVParallelLinear,
@@ -60,7 +59,6 @@ def __init__(self, config: BertConfig):
     def forward(
         self,
         input_ids: torch.Tensor,
-        seq_lens: torch.Tensor,
         position_ids: torch.Tensor,
         token_type_ids: Optional[torch.Tensor] = None,
     ) -> torch.Tensor:
@@ -119,7 +117,6 @@ def forward(
         return pooled_output
 
 
-@support_torch_compile
 class BertEncoder(nn.Module):
 
     def __init__(self, vllm_config: VllmConfig, prefix: str = ""):
@@ -337,6 +334,7 @@ def forward(self, hidden_states: torch.Tensor,
         return hidden_states
 
 
+@support_torch_compile
 class BertModel(nn.Module, SupportsQuant):
 
     is_pooling_model = True
@@ -368,13 +366,9 @@ def forward(
         if inputs_embeds is not None:
             hidden_states = inputs_embeds
         else:
-            attn_metadata = get_forward_context().attn_metadata
-            assert hasattr(attn_metadata, "seq_lens_tensor")
-            hidden_states = self.embeddings(
-                input_ids=input_ids,
-                seq_lens=attn_metadata.seq_lens_tensor,
-                position_ids=position_ids,
-                token_type_ids=token_type_ids)
+            hidden_states = self.embeddings(input_ids=input_ids,
+                                            position_ids=position_ids,
+                                            token_type_ids=token_type_ids)
         return self.encoder(hidden_states)
 
     def _load_weights(self, weights: Iterable[tuple[str, torch.Tensor]]):
@@ -447,7 +441,7 @@ def load_weights(self, weights: Iterable[tuple[str,
         return loaded_params
 
 
-class BertEmbeddingModel(nn.Module, SupportsV0Only, SupportsQuant):
+class BertEmbeddingModel(nn.Module, SupportsQuant):
     """A model that uses Bert to provide embedding functionalities.
 
     This class encapsulates the BertModel and provides an interface for
@@ -474,11 +468,13 @@ def forward(
         self,
         input_ids: Optional[torch.Tensor],
         positions: torch.Tensor,
+        token_type_ids: Optional[torch.Tensor] = None,
         intermediate_tensors: Optional[IntermediateTensors] = None,
         inputs_embeds: Optional[torch.Tensor] = None,
     ) -> torch.Tensor:
         return self.model(input_ids=input_ids,
                           position_ids=positions,
+                          token_type_ids=token_type_ids,
                           inputs_embeds=inputs_embeds,
                           intermediate_tensors=intermediate_tensors)
 

vllm/model_executor/models/roberta.py

@@ -9,6 +9,7 @@
 from transformers import RobertaConfig
 
 from vllm.config import VllmConfig
+from vllm.forward_context import get_forward_context
 from vllm.model_executor.layers.pooler import (ClassifierPooler, CLSPool,
                                                DispatchPooler, Pooler)
 from vllm.model_executor.layers.vocab_parallel_embedding import (
@@ -51,33 +52,12 @@ def __init__(self, config: RobertaConfig):
     def forward(
         self,
         input_ids: torch.Tensor,
-        seq_lens: torch.Tensor,
         position_ids: torch.Tensor,
         token_type_ids: Optional[torch.Tensor] = None,
     ) -> torch.Tensor:
         input_shape = input_ids.size()
         inputs_embeds = self.word_embeddings(input_ids)
 
-        # Replace position ids because in RoBERTa models
-        # they have to start at padding_idx + 1 and ignore
-        # existing padding tokens
-        # References:
-        # - https://github.com/huggingface/transformers/blob/a3d69a8994d673899608a7c17fbf4f953f50474e/src/transformers/models/roberta/modeling_roberta.py#L133
-        # - https://github.com/huggingface/transformers/blob/a3d69a8994d673899608a7c17fbf4f953f50474e/src/transformers/models/roberta/modeling_roberta.py#L1669
-        seq_lens_list = seq_lens.tolist()
-        new_pos_list = []
-        for positions, tokens in zip(position_ids.split(seq_lens_list),
-                                     input_ids.split(seq_lens_list)):
-            # Verify assumption that incoming position are
-            # always a sequence from 0 to N.
-            expected_pos = torch.arange(positions.size()[0],
-                                        dtype=torch.long,
-                                        device=inputs_embeds.device)
-            assert torch.equal(positions, expected_pos)
-            new_pos_list.append(
-                create_position_ids_from_input_ids(tokens, self.padding_idx))
-        position_ids = torch.cat(new_pos_list)
-
         # Position embeddings.
         position_embeddings = self.position_embeddings(position_ids)
         if token_type_ids is None:
@@ -119,6 +99,32 @@ class RobertaEmbeddingModel(BertEmbeddingModel):
        _pooler: An instance of Pooler used for pooling operations.
    """
 
+    def __init__(self, *, vllm_config: VllmConfig, prefix: str = ""):
+        super().__init__(vllm_config=vllm_config, prefix=prefix)
+        self.padding_idx = vllm_config.model_config.hf_config.pad_token_id
+
+    def forward(
+        self,
+        input_ids: Optional[torch.Tensor],
+        positions: torch.Tensor,
+        token_type_ids: Optional[torch.Tensor] = None,
+        intermediate_tensors: Optional[IntermediateTensors] = None,
+        inputs_embeds: Optional[torch.Tensor] = None,
+    ) -> torch.Tensor:
+
+        # Fix Roberta positions here outside of the CUDA graph.
+        # Because we need the to extract the sequences from
+        # input_ids the control flow is data dependent.
+        replace_roberta_positions(input_ids=input_ids,
+                                  position_ids=positions,
+                                  padding_idx=self.padding_idx)
+
+        return self.model(input_ids=input_ids,
+                          position_ids=positions,
+                          token_type_ids=token_type_ids,
+                          inputs_embeds=inputs_embeds,
+                          intermediate_tensors=intermediate_tensors)
+
     def _build_model(self,
                      vllm_config: VllmConfig,
                      prefix: str = "") -> Union[BertModel, BertWithRope]:
@@ -175,6 +181,7 @@ class RobertaForSequenceClassification(nn.Module, SupportsCrossEncoding,
     def __init__(self, *, vllm_config: VllmConfig, prefix: str = ""):
         super().__init__()
         config = vllm_config.model_config.hf_config
+        self.padding_idx = vllm_config.model_config.hf_config.pad_token_id
 
         self.num_labels = config.num_labels
         self.roberta = BertModel(vllm_config=vllm_config,
@@ -216,6 +223,9 @@ def forward(
         inputs_embeds: Optional[torch.Tensor] = None,
         token_type_ids: Optional[torch.Tensor] = None,
     ) -> torch.Tensor:
+        replace_roberta_positions(input_ids=input_ids,
+                                  position_ids=positions,
+                                  padding_idx=self.padding_idx)
         return self.roberta(input_ids=input_ids,
                             position_ids=positions,
                             inputs_embeds=inputs_embeds,
@@ -245,3 +255,36 @@ def create_position_ids_from_input_ids(input_ids,
                            past_key_values_length) * mask
 
     return incremental_indices.long() + padding_idx
+
+
+def replace_roberta_positions(input_ids: torch.Tensor,
+                              position_ids: torch.Tensor,
+                              padding_idx: int) -> None:
+
+    seq_lens: Optional[torch.Tensor] = None
+    attn_metadata = get_forward_context().attn_metadata
+    if attn_metadata is not None:  # can be None during warmup
+        if isinstance(attn_metadata, dict):
+            attn_metadata = next(iter(attn_metadata.values()))
+        # TODO: remove "seq_lens_tensor" after V0 is removed
+        seq_lens = getattr(attn_metadata, "seq_lens_tensor",
+                           getattr(attn_metadata, "seq_lens", None))
+
+    if seq_lens is not None:
+        assert isinstance(seq_lens, torch.Tensor)
+
+        # Replace position ids because in RoBERTa models
+        # they have to start at padding_idx + 1 and ignore
+        # existing padding tokens
+        # References:
+        # - https://github.com/huggingface/transformers/blob/a3d69a8994d673899608a7c17fbf4f953f50474e/src/transformers/models/roberta/modeling_roberta.py#L133
+        # - https://github.com/huggingface/transformers/blob/a3d69a8994d673899608a7c17fbf4f953f50474e/src/transformers/models/roberta/modeling_roberta.py#L1669
+        token_list = torch.split(input_ids[:torch.sum(seq_lens)],
+                                 seq_lens.tolist())
+
+        offset = 0
+        for tokens in token_list:
+            length = tokens.shape[0]
+            position_ids[offset:offset+length] = \
+                create_position_ids_from_input_ids(tokens, padding_idx)
+            offset = offset + length