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Implicit language-model-only mode via limit-mm-per-prompt (#22299)

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Signed-off-by: Roger Wang <hey@rogerw.me>
Signed-off-by: Andy Xie <andy.xning@gmail.com>
Signed-off-by: tjtanaa <tunjian.tan@embeddedllm.com>
Signed-off-by: Andrew Sansom <andrew@protopia.ai>
Signed-off-by: Zhiyu Cheng <zhiyuc@nvidia.com>
Signed-off-by: Shu Wang <shuw@nvidia.com>
Signed-off-by: Po-Han Huang <pohanh@nvidia.com>
Signed-off-by: Shu Wang. <shuw@nvidia.com>
Signed-off-by: XIn Li <xinli@nvidia.com>
Signed-off-by: Junhao Li <junhao@ubicloud.com>
Signed-off-by: chaunceyjiang <chaunceyjiang@gmail.com>
Signed-off-by: zRzRzRzRzRzRzR <2448370773@qq.com>
Signed-off-by: zitian.zhao <zitian.zhao@tencentmusic.com>
Signed-off-by: zitian zhao <zitian.zhao@tencentmusic.com>
Signed-off-by: DarkLight1337 <tlleungac@connect.ust.hk>
Signed-off-by: iAmir97 <Amir.balwel@embeddedllm.com>
Signed-off-by: iAmir97 <71513472+iAmir97@users.noreply.github.com>
Signed-off-by: Linkun <github@lkchen.net>
Co-authored-by: Ning Xie <andy.xning@gmail.com>
Co-authored-by: TJian <tunjian.tan@embeddedllm.com>
Co-authored-by: Andrew Sansom <andrew@protopia.ai>
Co-authored-by: Zhiyu <zhiyuc@nvidia.com>
Co-authored-by: Shu Wang <shuw@nvidia.com>
Co-authored-by: XIn Li <xinli@nvidia.com>
Co-authored-by: Junhao Li <streaver91@gmail.com>
Co-authored-by: Chauncey <chaunceyjiang@gmail.com>
Co-authored-by: Yuxuan Zhang <2448370773@qq.com>
Co-authored-by: ZiTian Zhao <zitian.zhao@tencentmusic.com>
Co-authored-by: Cyrus Leung <tlleungac@connect.ust.hk>
Co-authored-by: Po-Han Huang (NVIDIA) <53919306+nvpohanh@users.noreply.github.com>
Co-authored-by: iAmir97 <71513472+iAmir97@users.noreply.github.com>
Co-authored-by: iAmir97 <Amir.balwel@embeddedllm.com>
Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
Co-authored-by: Cyrus Leung <cyrus.tl.leung@gmail.com>
Co-authored-by: Hong Hanh <hanh.usth@gmail.com>
Co-authored-by: youkaichao <youkaichao@gmail.com>
Co-authored-by: lkchen <github@lkchen.net>
This commit is contained in:
Roger Wang
2025-08-08 22:21:40 -07:00
committed by GitHub
parent 429e4e2d42
commit 08b751ba74
16 changed files with 271 additions and 116 deletions
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30
vllm/model_executor/models/mllama4.py
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@@ -737,16 +737,20 @@ class Llama4ForConditionalGeneration(nn.Module, SupportsMultiModal,
self.config = config
self.quant_config = quant_config
self.multimodal_config = multimodal_config
self.vision_model = Llama4VisionModel(
config.vision_config,
None,
prefix=maybe_prefix(prefix, "vision_model"),
use_data_parallel=self.use_data_parallel,
)
self.multi_modal_projector = Llama4MultiModalProjector(
self.config,
None,
prefix=maybe_prefix(prefix, "multi_modal_projector"))
if multimodal_config.get_limit_per_prompt("image"):
self.vision_model = Llama4VisionModel(
config.vision_config,
None,
prefix=maybe_prefix(prefix, "vision_model"),
use_data_parallel=self.use_data_parallel,
)
self.multi_modal_projector = Llama4MultiModalProjector(
self.config,
None,
prefix=maybe_prefix(prefix, "multi_modal_projector"))
else:
self.vision_model = None
self.multi_modal_projector = None
self.language_model = initialize_model(
vllm_config=vllm_config.with_hf_config(config.text_config,
["LlamaForCausalLM"]),
@@ -783,6 +787,8 @@ class Llama4ForConditionalGeneration(nn.Module, SupportsMultiModal,
def _process_image_input(
self, image_input: Llama4ImagePatchInputs) -> MultiModalEmbeddings:
assert self.vision_model and self.multi_modal_projector
flat_data = image_input["flat_data"]
patches_per_image = image_input["patches_per_image"].tolist()
@@ -1048,6 +1054,10 @@ class Llama4ForConditionalGeneration(nn.Module, SupportsMultiModal,
language_model_weights, other_weights = (
self._separate_and_rename_weights(weights))
# Skip loading vision model and projector if they're not initialized.
if self.vision_model is None and self.multi_modal_projector is None:
other_weights = []
# Handle expert scale parameters
regular_weights, expert_scale_weights, updated_params_from_experts = (
self._handle_expert_scale_broadcasting(language_model_weights,