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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 14, 05:30 UTC

[Bugfix] Fix broken MTP weight loading for FP8 KV Scales (#27227)

Signed-off-by: Benjamin Chislett <bchislett@nvidia.com>

Benjamin Chislett committed Oct 21, 2025 at 01:51 UTC f381cf2302460fb921d67fc1356b9d1b1a93e960
1 file changed +8 -1
vllm/model_executor/models/deepseek_mtp.py
+8 -1
@@ -16,7 +16,10 @@ from vllm.model_executor.layers.vocab_parallel_embedding import (
16 ParallelLMHead,
17 VocabParallelEmbedding,
18 )
19 -from vllm.model_executor.model_loader.weight_utils import default_weight_loader
19 +from vllm.model_executor.model_loader.weight_utils import (
20 + default_weight_loader,
21 + maybe_remap_kv_scale_name,
22 +)
23 from vllm.platforms import current_platform
24 from vllm.sequence import IntermediateTensors
25
@@ -278,6 +281,10 @@ class DeepSeekMTP(nn.Module, SupportsPP):
281 if name.endswith(".bias") and name not in params_dict:
282 continue
283
284 + name = maybe_remap_kv_scale_name(name, params_dict)
285 + if name is None:
286 + continue
287 +
288 # According to DeepSeek-V3 Technical Report, MTP modules
289 # shares embedding layer. We only load the first weights.
290 if (