[Bugfix] fix qwen2.5-vl-72b shape ERROR during the _prepare_inputs phase under high concurrency. (#4553)

### What this PR does / why we need it?
qwen2.5-vl-72b reports a shape ERROR during the _prepare_inputs phase
under high concurrency【 issue
https://github.com/vllm-project/vllm-ascend/issues/4430 】

This PR fix it.

The related PR in main branch
:https://github.com/vllm-project/vllm-ascend/pull/3612

The related commit in vllm :
17c540a993/vllm/model_executor/models/interfaces.py

【The _get_text_embeddings function has been refactored to
interfaces.pyin vllm.】

Signed-off-by: Levi-JQ <yujinqi2@huawei.com>
Co-authored-by: Levi-JQ <yujinqi2@huawei.com>

vllm_ascend/models/qwen2_5_vl.py

@@ -34,6 +34,7 @@ from vllm.model_executor.layers.activation import get_act_and_mul_fn
 from vllm.model_executor.layers.layernorm import RMSNorm
 from vllm.model_executor.layers.quantization import QuantizationConfig
 from vllm.model_executor.model_loader.weight_utils import default_weight_loader
+from vllm.model_executor.models.interfaces import MultiModalEmbeddings
 from vllm.model_executor.models.qwen2_5_vl import (
     Qwen2_5_VisionAttention, Qwen2_5_VisionBlock, Qwen2_5_VisionPatchEmbed,
     Qwen2_5_VisionRotaryEmbedding, Qwen2_5_VisionTransformer,
@@ -560,3 +561,68 @@ class AscendQwen2_5_VLForConditionalGeneration(
         merge_size = self.visual.spatial_merge_size
         sizes = grid_thw.prod(-1) // merge_size // merge_size
         return video_embeds.split(sizes.tolist())
+
+    def _get_text_embeddings(
+        self,
+        input_ids: torch.Tensor,
+        get_input_embeddings: Callable[[torch.Tensor], torch.Tensor],
+        *,
+        is_multimodal: Optional[torch.Tensor],
+        handle_oov_mm_token: bool,
+    ) -> torch.Tensor:
+        if handle_oov_mm_token and is_multimodal is not None:
+            is_text = ~is_multimodal
+            text_embeds = get_input_embeddings(input_ids[is_text])
+
+            return torch.empty(
+                (input_ids.shape[0], text_embeds.shape[1]),
+                dtype=text_embeds.dtype,
+                device=text_embeds.device,
+            ).masked_scatter_(is_text.unsqueeze_(-1), text_embeds)
+
+        return get_input_embeddings(input_ids)
+
+    def get_input_embeddings(
+        self,
+        input_ids: torch.Tensor,
+        multimodal_embeddings: Optional[MultiModalEmbeddings] = None,
+        *,
+        is_multimodal: Optional[torch.Tensor] = None,
+        handle_oov_mm_token: bool = False,
+    ) -> torch.Tensor:
+        """
+        Apply token embeddings to `input_ids`.
+
+        If `multimodal_embeddings` is passed, scatter them into
+        `input_ids` according to the mask `is_multimodal`.
+
+        In case the multi-modal token IDs exceed the vocabulary size of
+        the language model, you can set `handle_oov_mm_token=False`
+        to avoid calling the language model's `get_input_embeddings` method
+        on those tokens. Note however that doing so increases memory usage
+        as an additional buffer is needed to hold the input embeddings.
+        """
+        from vllm.model_executor.models.utils import \
+            _merge_multimodal_embeddings
+
+        inputs_embeds = self._get_text_embeddings(
+            input_ids,
+            self.get_language_model().get_input_embeddings,
+            is_multimodal=is_multimodal,
+            handle_oov_mm_token=handle_oov_mm_token,
+        )
+
+        if multimodal_embeddings is None or len(multimodal_embeddings) == 0:
+            return inputs_embeds
+
+        if is_multimodal is None:
+            raise ValueError(
+                "`get_input_embeddings` now requires `is_multimodal` arg, "
+                "please update your model runner according to "
+                "https://github.com/vllm-project/vllm/pull/16229.")
+
+        return _merge_multimodal_embeddings(
+            inputs_embeds=inputs_embeds,
+            is_multimodal=is_multimodal,
+            multimodal_embeddings=multimodal_embeddings,
+        )

vllm_ascend/models/qwen2_5_vl_without_padding.py

@@ -26,6 +26,7 @@ import torch_npu
 from einops import rearrange
 from transformers.models.qwen2_5_vl.configuration_qwen2_5_vl import (
     Qwen2_5_VLConfig, Qwen2_5_VLVisionConfig)
+from vllm.model_executor.models.interfaces import MultiModalEmbeddings
 
 try:
     from transformers.models.qwen3_vl.configuration_qwen3_vl import \
@@ -523,6 +524,71 @@ class AscendQwen2_5_VLForConditionalGeneration_Without_Padding(
         sizes = grid_thw.prod(-1) // merge_size // merge_size
         return video_embeds.split(sizes.tolist())
 
+    def _get_text_embeddings(
+        self,
+        input_ids: torch.Tensor,
+        get_input_embeddings: Callable[[torch.Tensor], torch.Tensor],
+        *,
+        is_multimodal: Optional[torch.Tensor],
+        handle_oov_mm_token: bool,
+    ) -> torch.Tensor:
+        if handle_oov_mm_token and is_multimodal is not None:
+            is_text = ~is_multimodal
+            text_embeds = get_input_embeddings(input_ids[is_text])
+
+            return torch.empty(
+                (input_ids.shape[0], text_embeds.shape[1]),
+                dtype=text_embeds.dtype,
+                device=text_embeds.device,
+            ).masked_scatter_(is_text.unsqueeze_(-1), text_embeds)
+
+        return get_input_embeddings(input_ids)
+
+    def get_input_embeddings(
+        self,
+        input_ids: torch.Tensor,
+        multimodal_embeddings: Optional[MultiModalEmbeddings] = None,
+        *,
+        is_multimodal: Optional[torch.Tensor] = None,
+        handle_oov_mm_token: bool = False,
+    ) -> torch.Tensor:
+        """
+        Apply token embeddings to `input_ids`.
+
+        If `multimodal_embeddings` is passed, scatter them into
+        `input_ids` according to the mask `is_multimodal`.
+
+        In case the multi-modal token IDs exceed the vocabulary size of
+        the language model, you can set `handle_oov_mm_token=False`
+        to avoid calling the language model's `get_input_embeddings` method
+        on those tokens. Note however that doing so increases memory usage
+        as an additional buffer is needed to hold the input embeddings.
+        """
+        from vllm.model_executor.models.utils import \
+            _merge_multimodal_embeddings
+
+        inputs_embeds = self._get_text_embeddings(
+            input_ids,
+            self.get_language_model().get_input_embeddings,
+            is_multimodal=is_multimodal,
+            handle_oov_mm_token=handle_oov_mm_token,
+        )
+
+        if multimodal_embeddings is None or len(multimodal_embeddings) == 0:
+            return inputs_embeds
+
+        if is_multimodal is None:
+            raise ValueError(
+                "`get_input_embeddings` now requires `is_multimodal` arg, "
+                "please update your model runner according to "
+                "https://github.com/vllm-project/vllm/pull/16229.")
+
+        return _merge_multimodal_embeddings(
+            inputs_embeds=inputs_embeds,
+            is_multimodal=is_multimodal,
+            multimodal_embeddings=multimodal_embeddings,
+        )
+
 
 @MULTIMODAL_REGISTRY.register_processor(Qwen3VLMultiModalProcessor,
                                         info=Qwen3VLProcessingInfo,

vllm_ascend/worker/model_runner_v1.py

@@ -62,6 +62,7 @@ from vllm.model_executor.model_loader import get_model
 from vllm.model_executor.models.interfaces import supports_transcription
 from vllm.model_executor.models.interfaces_base import (
     VllmModelForPooling, is_pooling_model, is_text_generation_model)
+from vllm.multimodal import MULTIMODAL_REGISTRY
 from vllm.multimodal.inputs import MultiModalKwargsItem, PlaceholderRange
 from vllm.multimodal.utils import group_mm_kwargs_by_modality
 from vllm.pooling_params import PoolingParams
@@ -550,6 +551,14 @@ class NPUModelRunner(LoRAModelRunnerMixin):
         num_tokens_per_tp_rank = (max_num_tokens + tp_size - 1) // tp_size
         self.mc2_tokens_capacity = num_tokens_per_tp_rank * tp_size
 
+        # Only relevant for multimodal models
+        self.mm_registry = MULTIMODAL_REGISTRY
+        self.supports_mm_inputs = self.mm_registry.supports_multimodal_inputs(
+            self.model_config)
+        if self.supports_mm_inputs:
+            self.is_mm_embed = self._make_buffer(self.max_num_tokens,
+                                                 dtype=torch.bool)
+
     def _make_buffer(self,
                      *size: Union[int, torch.SymInt],
                      dtype: torch.dtype,
@@ -1034,7 +1043,7 @@ class NPUModelRunner(LoRAModelRunnerMixin):
     def _gather_mm_embeddings(
         self,
         scheduler_output: "SchedulerOutput",
-    ) -> list[torch.Tensor]:
+    ) -> tuple[list[torch.Tensor], torch.Tensor]:
 
         def _iter_mm_features(req_state: CachedRequestState):
             assert req_state.mm_features is not None
@@ -1044,8 +1053,15 @@ class NPUModelRunner(LoRAModelRunnerMixin):
                     pos_info, "is_embed", None)
 
         mm_embeds: list[torch.Tensor] = []
+        total_num_scheduled_tokens = scheduler_output.total_num_scheduled_tokens
+        is_mm_embed = self.is_mm_embed.cpu
+        is_mm_embed[:total_num_scheduled_tokens] = False
+
+        req_start_idx = 0
 
         for req_id in self.input_batch.req_ids:
+            mm_embeds_req: list[torch.Tensor] = []
+
             num_scheduled_tokens = scheduler_output.num_scheduled_tokens[
                 req_id]
             req_state = self.requests[req_id]
@@ -1074,12 +1090,22 @@ class NPUModelRunner(LoRAModelRunnerMixin):
                 if is_embed is not None:
                     is_embed = is_embed[start_idx:end_idx]
 
+                req_start_pos = req_start_idx + start_pos - num_computed_tokens
+                is_mm_embed[req_start_pos+start_idx:req_start_pos + end_idx] \
+                    = True if is_embed is None else is_embed
+
                 mm_embeds_item = gather_mm_placeholders(
                     encoder_output[start_idx:end_idx],
                     is_embed=is_embed,
                 )
-                mm_embeds.append(mm_embeds_item)
+                mm_embeds_req.append(mm_embeds_item)
-        return mm_embeds
+
+            mm_embeds.extend(mm_embeds_req)
+            req_start_idx += num_scheduled_tokens
+
+        is_mm_embed = self.is_mm_embed.copy_to_gpu(total_num_scheduled_tokens)
+
+        return mm_embeds, is_mm_embed
 
     def _get_cumsum_and_arange(
         self,
@@ -1362,17 +1388,17 @@ class NPUModelRunner(LoRAModelRunnerMixin):
         if self.is_multimodal_model:
             # Run the multimodal encoder if any.
             self._execute_mm_encoder(scheduler_output)
-            mm_embeds = self._gather_mm_embeddings(scheduler_output)
+            mm_embeds, is_mm_embed = self._gather_mm_embeddings(
-
+                scheduler_output)
             # NOTE(woosuk): To unify token ids and soft tokens (vision
             # embeddings), we always use embeddings (rather than token ids)
             # as input to the multimodal model, even when the input is text.
             input_ids = self.input_ids[:total_num_scheduled_tokens]
-            if mm_embeds:
+            inputs_embeds = self.model.get_input_embeddings(
-                inputs_embeds = self.model.get_input_embeddings(
+                input_ids,
-                    input_ids, mm_embeds)
+                multimodal_embeddings=mm_embeds,
-            else:
+                is_multimodal=is_mm_embed,
-                inputs_embeds = self.model.get_input_embeddings(input_ids)
+            )
             # TODO(woosuk): Avoid the copy. Optimize.
             self.inputs_embeds[:total_num_scheduled_tokens].copy_(
                 inputs_embeds)