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A high-throughput and memory-efficient inference and serving engine for LLMs

Mirrored from https://github.com/tduncan-lum/Nvidia-Optimization-Stack---VLLM.git

Synced Nov 15, 08:30 UTC

[V1] [Bugfix] eagle bugfix and enable correct lm_head for multimodal (#18034)

Signed-off-by: Ronald Xu <ronaldxu@amazon.com>

RonaldBXu committed May 23, 2025 at 00:37 UTC 4c611348a7444e3ad6d04b9f741ff239b7047633
2 files changed +6 -3
vllm/transformers_utils/configs/eagle.py
+1 -2
@@ -70,8 +70,7 @@ class EAGLEConfig(PretrainedConfig):
70
71 if self.model is not None:
72 for k, v in self.model.to_dict().items():
73 - if not hasattr(self, k):
74 - setattr(self, k, v)
73 + setattr(self, k, v)
74
75 @classmethod
76 def from_pretrained(
vllm/v1/spec_decode/eagle.py
+5 -1
@@ -9,6 +9,7 @@ from vllm.distributed.parallel_state import get_pp_group
9 from vllm.forward_context import set_forward_context
10 from vllm.logger import init_logger
11 from vllm.model_executor.model_loader import get_model
12 +from vllm.model_executor.models import supports_multimodal
13 from vllm.model_executor.models.llama_eagle3 import Eagle3LlamaForCausalLM
14 from vllm.triton_utils import tl, triton
15 from vllm.v1.attention.backends.flash_attn import FlashAttentionMetadata
@@ -310,7 +311,10 @@ class EagleProposer:
311 if self.vllm_config.speculative_config.method != "eagle3" and \
312 hasattr(target_model, "lm_head"):
313 logger.info("Loading EAGLE LM head weights from the target model.")
313 - self.model.lm_head = target_model.lm_head
314 + if supports_multimodal(target_model):
315 + self.model.lm_head = target_model.get_language_model().lm_head
316 + else:
317 + self.model.lm_head = target_model.lm_head
318
319 @torch.inference_mode()
320 def dummy_run(