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vLLM/vllm/model_executor/models/chatglm.py
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Python

# SPDX-License-Identifier: Apache-2.0
# Adapted from
# https://github.com/THUDM/CogAgent
"""Inference-only CogAgent model compatible with THUDM weights."""
from argparse import Namespace
from typing import (Iterable, List, Mapping, Optional, Set, Tuple, TypedDict,
Union)
import torch
from torch import nn
from torch.nn import LayerNorm
from torchvision import transforms
from torchvision.transforms import InterpolationMode
from transformers import PreTrainedTokenizer, TensorType
from transformers.image_utils import ImageInput
from transformers.tokenization_utils_base import TextInput
from vllm.attention import Attention, AttentionMetadata
from vllm.config import CacheConfig, VllmConfig
from vllm.distributed import get_pp_group, get_tensor_model_parallel_world_size
from vllm.model_executor.layers.activation import SiluAndMul
from vllm.model_executor.layers.layernorm import RMSNorm
from vllm.model_executor.layers.linear import (MergedColumnParallelLinear,
QKVParallelLinear,
RowParallelLinear)
from vllm.model_executor.layers.logits_processor import LogitsProcessor
from vllm.model_executor.layers.quantization import QuantizationConfig
from vllm.model_executor.layers.rotary_embedding import get_rope
from vllm.model_executor.layers.sampler import SamplerOutput, get_sampler
from vllm.model_executor.layers.vocab_parallel_embedding import (
ParallelLMHead, VocabParallelEmbedding)
from vllm.model_executor.model_loader.weight_utils import default_weight_loader
from vllm.model_executor.models.glm4_vision_encoder import EVA2CLIPModel
from vllm.model_executor.models.module_mapping import MultiModelKeys
from vllm.model_executor.sampling_metadata import SamplingMetadata
from vllm.multimodal import MULTIMODAL_REGISTRY
from vllm.multimodal.inputs import MultiModalKwargs, NestedTensors
from vllm.multimodal.parse import MultiModalDataItems
from vllm.multimodal.processing import (BaseMultiModalProcessor,
BaseProcessingInfo, BatchFeature,
MultiModalFieldConfig,
PromptReplacement)
from vllm.multimodal.profiling import BaseDummyInputsBuilder, ProcessorInputs
from vllm.sequence import IntermediateTensors
from vllm.transformers_utils.configs import ChatGLMConfig
from .interfaces import SupportsLoRA, SupportsMultiModal, SupportsPP
from .utils import (AutoWeightsLoader, WeightsMapper, is_pp_missing_parameter,
make_empty_intermediate_tensors_factory, make_layers,
maybe_prefix, merge_multimodal_embeddings)
class GLMImagePixelInputs(TypedDict):
pixel_values: torch.Tensor
"""Shape: `(batch_size, num_channels, height, width)`"""
class GLM4VProcessor:
"""
This model doesn't define its own HF processor,
so we implement our own one here.
"""
def __init__(
self,
config: ChatGLMConfig,
tokenizer: PreTrainedTokenizer,
) -> None:
super().__init__()
self.config = config
self.tokenizer = tokenizer
if vision_config := getattr(config, "vision_config", None):
image_size = vision_config["image_size"]
self.image_transform = transforms.Compose([
transforms.Resize(
(image_size, image_size),
interpolation=InterpolationMode.BICUBIC,
),
transforms.ToTensor(),
transforms.Normalize(
mean=(0.48145466, 0.4578275, 0.40821073),
std=(0.26862954, 0.26130258, 0.27577711),
),
])
else:
self.image_transform = None
def __call__(
self,
text: Optional[Union[TextInput, list[TextInput]]] = None,
images: Optional[Union[ImageInput, list[ImageInput]]] = None,
return_tensors: Optional[Union[str, TensorType]] = None,
) -> BatchFeature:
if text is None:
text = []
if not isinstance(text, list):
text = [text]
if images is None:
images = []
if not isinstance(images, list):
images = [images]
text_inputs = self.tokenizer(text)
if len(images) == 0:
image_inputs = {}
else:
if self.image_transform is None:
raise ValueError("This model does not support image inputs")
pixel_values = [self.image_transform(image) for image in images]
image_inputs = {"pixel_values": torch.stack(pixel_values)}
return BatchFeature(
{
**text_inputs,
**image_inputs,
},
tensor_type=return_tensors,
)
class GLM4VProcessingInfo(BaseProcessingInfo):
def get_tokenizer(self):
tokenizer = self.ctx.tokenizer
assert isinstance(tokenizer, PreTrainedTokenizer)
return tokenizer
def get_hf_config(self):
return self.ctx.get_hf_config(ChatGLMConfig)
def get_hf_processor(self) -> GLM4VProcessor:
return GLM4VProcessor(
self.get_hf_config(),
self.get_tokenizer(),
)
def get_supported_mm_limits(self) -> Mapping[str, Optional[int]]:
return {"image": 1}
def get_mm_max_tokens_per_item(
self,
seq_len: int,
mm_counts: Mapping[str, int],
) -> Mapping[str, int]:
return {"image": self.get_num_image_feature_tokens()}
def get_num_image_tokens(self) -> int:
hf_config = self.get_hf_config()
if not (vision_config := getattr(hf_config, "vision_config", None)):
return 0
image_size = vision_config["image_size"]
patch_size = vision_config["patch_size"]
grid_length = image_size // patch_size // 2
return grid_length * grid_length
def get_num_image_feature_tokens(self) -> int:
# EVA2CLIPModel has embeddings for boi and eoi tokens as well
return self.get_num_image_tokens() + 2
class GLM4VDummyInputsBuilder(BaseDummyInputsBuilder[GLM4VProcessingInfo]):
def get_dummy_processor_inputs(
self,
seq_len: int,
mm_counts: Mapping[str, int],
) -> ProcessorInputs:
hf_config = self.info.get_hf_config()
if not (vision_config := getattr(hf_config, "vision_config", None)):
return ProcessorInputs(prompt_text="", mm_data={})
target_width = target_height = vision_config["image_size"]
num_images = mm_counts.get("image", 0)
mm_data = {
"image":
self._get_dummy_images(width=target_width,
height=target_height,
num_images=num_images)
}
base_text = "<|begin_of_image|><|endoftext|><|end_of_image|>"
return ProcessorInputs(
prompt_text=base_text * num_images,
mm_data=mm_data,
)
class GLM4VMultiModalProcessor(BaseMultiModalProcessor[GLM4VProcessingInfo]):
def _get_mm_fields_config(
self,
hf_inputs: BatchFeature,
hf_processor_mm_kwargs: Mapping[str, object],
) -> Mapping[str, MultiModalFieldConfig]:
return dict(pixel_values=MultiModalFieldConfig.batched("image"))
def _get_prompt_replacements(
self,
mm_items: MultiModalDataItems,
hf_processor_mm_kwargs: Mapping[str, object],
out_mm_kwargs: MultiModalKwargs,
) -> list[PromptReplacement]:
hf_config = self.info.get_hf_config()
if not hasattr(hf_config, "vision_config"):
return []
boi_token_id = hf_config.boi_token_id
image_token_id = hf_config.pad_token_id
eoi_token_id = hf_config.eoi_token_id
def get_replacement(item_idx: int):
num_image_tokens = self.info.get_num_image_tokens()
image_tokens = [image_token_id] * num_image_tokens
return [boi_token_id] + image_tokens + [eoi_token_id]
return [
PromptReplacement(
modality="image",
target=[boi_token_id, image_token_id, eoi_token_id],
replacement=get_replacement,
),
]
class GLMAttention(nn.Module):
def __init__(
self,
config: ChatGLMConfig,
cache_config: Optional[CacheConfig] = None,
quant_config: Optional[QuantizationConfig] = None,
prefix: str = "",
):
super().__init__()
self.hidden_size = config.hidden_size
tp_size = get_tensor_model_parallel_world_size()
self.total_num_heads = config.num_attention_heads
assert self.total_num_heads % tp_size == 0
self.num_heads = self.total_num_heads // tp_size
self.multi_query_attention = config.multi_query_attention
self.total_num_kv_heads = (config.multi_query_group_num
if config.multi_query_attention else
config.num_attention_heads)
if self.total_num_kv_heads >= tp_size:
# Number of KV heads is greater than TP size, so we partition
# the KV heads across multiple tensor parallel GPUs.
assert self.total_num_kv_heads % tp_size == 0
else:
# Number of KV heads is less than TP size, so we replicate
# the KV heads across multiple tensor parallel GPUs.
assert tp_size % self.total_num_kv_heads == 0
self.num_kv_heads = max(1, self.total_num_kv_heads // tp_size)
self.head_dim = config.hidden_size // self.total_num_heads
self.q_size = self.num_heads * self.head_dim
self.kv_size = self.num_kv_heads * self.head_dim
self.scaling = self.head_dim**-0.5
self.query_key_value = QKVParallelLinear(
self.hidden_size,
self.head_dim,
self.total_num_heads,
self.total_num_kv_heads,
bias=config.add_bias_linear or config.add_qkv_bias,
quant_config=quant_config,
prefix=f"{prefix}.query_key_value",
)
self.dense = RowParallelLinear(
self.total_num_heads * self.head_dim,
config.hidden_size,
bias=config.add_bias_linear,
quant_config=quant_config,
prefix=f"{prefix}.dense",
)
# https://huggingface.co/THUDM/chatglm3-6b-32k/blob/e210410255278dd9d74463cf396ba559c0ef801c/modeling_chatglm.py#L141
rope_ratio = getattr(config, "rope_ratio", 1.0)
max_positions = getattr(config, "seq_length", 8192)
# NOTE: THUDM/cogagent-9b-20241220 uses original_rope=False,
# which is equivalent to is_neox_style=True
is_neox_style = not config.original_rope
self.rotary_emb = get_rope(
self.head_dim,
rotary_dim=self.head_dim // 2,
max_position=max_positions,
base=10000 * rope_ratio,
is_neox_style=is_neox_style,
)
self.attn = Attention(self.num_heads,
self.head_dim,
self.scaling,
num_kv_heads=self.num_kv_heads,
cache_config=cache_config,
quant_config=quant_config,
prefix=f"{prefix}.attn")
def forward(
self,
hidden_states: torch.Tensor,
position_ids: torch.Tensor,
kv_cache: torch.Tensor,
attn_metadata: AttentionMetadata,
) -> torch.Tensor:
qkv, _ = self.query_key_value(hidden_states)
q, k, v = qkv.split([self.q_size, self.kv_size, self.kv_size], dim=-1)
q, k = self.rotary_emb(position_ids, q, k)
context_layer = self.attn(
q,
k,
v,
kv_cache,
attn_metadata,
)
attn_output, _ = self.dense(context_layer)
return attn_output
class GLMMLP(nn.Module):
"""MLP.
MLP will take the input with h hidden state, project it to 4*h
hidden dimension, perform nonlinear transformation, and project the
state back into h hidden dimension.
"""
def __init__(
self,
config: ChatGLMConfig,
quant_config: Optional[QuantizationConfig] = None,
prefix: str = "",
):
super().__init__()
self.add_bias = config.add_bias_linear
# Project to 4h.
self.dense_h_to_4h = MergedColumnParallelLinear(
config.hidden_size,
[config.ffn_hidden_size] * 2,
bias=config.add_bias_linear,
quant_config=quant_config,
prefix=f"{prefix}.dense_h_to_4h",
)
self.activation_func = SiluAndMul()
# Project back to h.
self.dense_4h_to_h = RowParallelLinear(
config.ffn_hidden_size,
config.hidden_size,
bias=config.add_bias_linear,
quant_config=quant_config,
prefix=f"{prefix}.dense_4h_to_h",
)
def forward(self, hidden_states):
# [s, b, 4hp]
intermediate_parallel, _ = self.dense_h_to_4h(hidden_states)
intermediate_parallel = self.activation_func(intermediate_parallel)
# [s, b, h]
output, _ = self.dense_4h_to_h(intermediate_parallel)
return output
class GLMBlock(nn.Module):
"""A single transformer layer.
Transformer layer takes input with size [s, b, h] and returns an
output of the same size.
"""
def __init__(
self,
config: ChatGLMConfig,
cache_config: Optional[CacheConfig] = None,
quant_config: Optional[QuantizationConfig] = None,
prefix: str = "",
):
super().__init__()
self.apply_residual_connection_post_layernorm = (
config.apply_residual_connection_post_layernorm)
self.fp32_residual_connection = config.fp32_residual_connection
layer_norm_func = RMSNorm if config.rmsnorm else LayerNorm
# Layernorm on the input data.
self.input_layernorm = layer_norm_func(config.hidden_size,
eps=config.layernorm_epsilon)
# Self attention.
self.self_attention = GLMAttention(config,
cache_config,
quant_config,
prefix=f"{prefix}.self_attention")
self.hidden_dropout = config.hidden_dropout
# Layernorm on the attention output
self.post_attention_layernorm = layer_norm_func(
config.hidden_size, eps=config.layernorm_epsilon)
# MLP
self.mlp = GLMMLP(config, quant_config, prefix=f"{prefix}.mlp")
def forward(
self,
hidden_states: torch.Tensor,
position_ids: torch.Tensor,
kv_cache: torch.Tensor,
attn_metadata: AttentionMetadata,
) -> torch.Tensor:
# hidden_states: [num_tokens, h]
# Layer norm at the beginning of the transformer layer.
layernorm_output = self.input_layernorm(hidden_states)
# Self attention.
attention_output = self.self_attention(
hidden_states=layernorm_output,
position_ids=position_ids,
kv_cache=kv_cache,
attn_metadata=attn_metadata,
)
# Residual connection.
if self.apply_residual_connection_post_layernorm:
residual = layernorm_output
else:
residual = hidden_states
layernorm_input = residual + attention_output
# Layer norm post the self attention.
layernorm_output = self.post_attention_layernorm(layernorm_input)
# Second residual connection.
if self.apply_residual_connection_post_layernorm:
residual = layernorm_output
else:
residual = layernorm_input
output = self.mlp(layernorm_output) + residual
return output
class GLMTransformer(nn.Module):
"""Transformer class."""
def __init__(
self,
config: ChatGLMConfig,
cache_config: Optional[CacheConfig] = None,
quant_config: Optional[QuantizationConfig] = None,
prefix: str = "",
):
super().__init__()
self.post_layer_norm = config.post_layer_norm
# Number of layers.
self.num_layers = config.num_layers
# Transformer layers.
self.start_layer, self.end_layer, self.layers = make_layers(
self.num_layers,
lambda prefix: GLMBlock(
config, cache_config, quant_config, prefix=prefix),
prefix=f"{prefix}.layers",
)
if self.post_layer_norm:
layer_norm_func = RMSNorm if config.rmsnorm else LayerNorm
# Final layer norm before output.
self.final_layernorm = layer_norm_func(
config.hidden_size, eps=config.layernorm_epsilon)
self.make_empty_intermediate_tensors = (
make_empty_intermediate_tensors_factory(["hidden_states"],
config.hidden_size))
def forward(
self,
hidden_states: torch.Tensor,
position_ids: torch.Tensor,
kv_caches: List[torch.Tensor],
attn_metadata: AttentionMetadata,
) -> torch.Tensor:
for i in range(self.start_layer, self.end_layer):
layer = self.layers[i]
hidden_states = layer(
hidden_states=hidden_states,
position_ids=position_ids,
kv_cache=kv_caches[i - self.start_layer],
attn_metadata=attn_metadata,
)
# Final layer norm.
if get_pp_group().is_last_rank and self.post_layer_norm:
hidden_states = self.final_layernorm(hidden_states)
return hidden_states
class ChatGLMModel(nn.Module):
def __init__(self, *, vllm_config: VllmConfig, prefix: str = ""):
super().__init__()
config = vllm_config.model_config.hf_config
cache_config = vllm_config.cache_config
quant_config = vllm_config.quant_config
self.config = config
self.embedding = VocabParallelEmbedding(config.padded_vocab_size,
config.hidden_size,
quant_config=quant_config,
prefix=f"{prefix}.embedding")
self.num_layers = config.num_layers
self.multi_query_group_num = config.multi_query_group_num
self.kv_channels = config.kv_channels
self.encoder = GLMTransformer(config,
cache_config,
quant_config,
prefix=f"{prefix}.encoder")
self.output_layer = ParallelLMHead(config.padded_vocab_size,
config.hidden_size,
quant_config=quant_config,
prefix=f"{prefix}.output_layer")
vision_config_flag = getattr(config, 'vision_config', None)
if vision_config_flag is not None:
self.vision_config = Namespace(**config.vision_config)
self.vision = EVA2CLIPModel(self.config,
quant_config,
prefix=f"{prefix}.vision")
else:
self.vision = None
self.make_empty_intermediate_tensors = (
self.encoder.make_empty_intermediate_tensors)
def _parse_and_validate_image_input(
self, **kwargs: object) -> GLMImagePixelInputs:
pixel_values = kwargs.pop("pixel_values", None)
if pixel_values is not None and self.vision is not None:
if isinstance(pixel_values, torch.Tensor):
if pixel_values.ndim > 2:
pixel_values = torch.concat(list(pixel_values))
elif isinstance(pixel_values, list):
return torch.concat(pixel_values)
else:
raise TypeError("""pixel_values must be a torch.Tensor
or a list of torch.Tensor
""")
return GLMImagePixelInputs(pixel_values=pixel_values)
def get_multimodal_embeddings(self, **kwargs) -> Optional[NestedTensors]:
image_input = self._parse_and_validate_image_input(**kwargs)
if image_input["pixel_values"] is None:
return None
pixel_values = image_input["pixel_values"].to(
dtype=self.config.torch_dtype)
vision_embeddings = self.vision(pixel_values)
return vision_embeddings
def get_input_embeddings(
self,
input_ids: torch.Tensor,
multimodal_embeddings: Optional[NestedTensors] = None,
) -> torch.Tensor:
inputs_embeds = self.embedding(input_ids)
if multimodal_embeddings is not None:
inputs_embeds = merge_multimodal_embeddings(
input_ids=input_ids,
inputs_embeds=inputs_embeds,
multimodal_embeddings=multimodal_embeddings,
placeholder_token_id=[
self.config.boi_token_id,
self.config.pad_token_id,
self.config.eoi_token_id,
],
)
return inputs_embeds
def forward(
self,
input_ids: torch.Tensor,
positions: torch.Tensor,
kv_caches: List[torch.Tensor],
attn_metadata: AttentionMetadata,
intermediate_tensors: Optional[IntermediateTensors] = None,
inputs_embeds: Optional[torch.Tensor] = None,
**kwargs: object,
) -> torch.Tensor:
# NOTE: In v1, inputs_embeds is always generated at model runner, this
# condition is for v0 compatibility.
if intermediate_tensors is not None:
inputs_embeds = intermediate_tensors["hidden_states"]
elif inputs_embeds is None:
vision_embeddings = self.get_multimodal_embeddings(**kwargs)
inputs_embeds = self.get_input_embeddings(input_ids,
vision_embeddings)
# Run encoder.
hidden_states = self.encoder(
hidden_states=inputs_embeds,
position_ids=positions,
kv_caches=kv_caches,
attn_metadata=attn_metadata,
)
if not get_pp_group().is_last_rank:
return IntermediateTensors({"hidden_states": hidden_states})
return hidden_states
def load_weights(self, weights: Iterable[Tuple[str,
torch.Tensor]]) -> Set[str]:
stacked_params_mapping = [
# (param_name, shard_name, shard_id)
("linear_proj.merged_proj", "linear_proj.gate_proj", 0),
("linear_proj.merged_proj", "linear_proj.dense_h_to_4h", 1),
]
params_dict = dict(self.named_parameters())
loaded_params: Set[str] = set()
for name, loaded_weight in weights:
for (param_name, weight_name, shard_id) in stacked_params_mapping:
if weight_name not in name:
continue
name = name.replace(weight_name, param_name)
# Skip loading extra bias for GPTQ models.
if name.endswith(".bias") and name not in params_dict:
continue
if is_pp_missing_parameter(name, self):
continue
param = params_dict[name]
weight_loader = param.weight_loader
weight_loader(param, loaded_weight, shard_id)
break
else:
if "rotary_pos_emb.inv_freq" in name:
continue
if name.endswith(".bias") and name not in params_dict:
continue
if is_pp_missing_parameter(name, self):
continue
param = params_dict[name]
weight_loader = getattr(param, "weight_loader",
default_weight_loader)
weight_loader(param, loaded_weight)
loaded_params.add(name)
return loaded_params
class ChatGLMBaseModel(nn.Module, SupportsLoRA, SupportsPP):
hf_to_vllm_mapper = WeightsMapper(
orig_to_new_substr={".word_embeddings": ""}, )
def __init__(self, *, vllm_config: VllmConfig, prefix: str = ""):
super().__init__()
config = vllm_config.model_config.hf_config
quant_config = vllm_config.quant_config
lora_config = vllm_config.lora_config
multimodal_config = vllm_config.model_config.multimodal_config
self.config = config
self.lora_config = lora_config
self.multimodal_config = multimodal_config
self.quant_config = quant_config
self.max_position_embeddings = getattr(config, "max_sequence_length",
8192)
self.transformer = ChatGLMModel(vllm_config=vllm_config,
prefix=maybe_prefix(
prefix, "transformer"))
if self.config.tie_word_embeddings:
self.transformer.output_layer.weight = (
self.transformer.embedding.weight)
self.lm_head = self.transformer.output_layer
self.logits_processor = LogitsProcessor(config.padded_vocab_size)
self.sampler = get_sampler()
def forward(self,
input_ids: torch.Tensor,
positions: torch.Tensor,
kv_caches: List[torch.Tensor],
attn_metadata: AttentionMetadata,
intermediate_tensors: Optional[IntermediateTensors] = None,
**kwargs) -> torch.Tensor:
hidden_states = self.transformer(input_ids, positions, kv_caches,
attn_metadata, intermediate_tensors,
**kwargs)
return hidden_states
def compute_logits(
self,
hidden_states: torch.Tensor,
sampling_metadata: SamplingMetadata,
) -> Optional[torch.Tensor]:
logits = self.logits_processor(self.lm_head, hidden_states,
sampling_metadata)
return logits
def sample(
self,
logits: torch.Tensor,
sampling_metadata: SamplingMetadata,
) -> Optional[SamplerOutput]:
next_tokens = self.sampler(logits, sampling_metadata)
return next_tokens
def load_weights(self, weights: Iterable[Tuple[str, torch.Tensor]]):
loader = AutoWeightsLoader(self)
return loader.load_weights(weights, mapper=self.hf_to_vllm_mapper)
class ChatGLM(ChatGLMBaseModel):
packed_modules_mapping = {
"query_key_value": ["query_key_value"],
"dense_h_to_4h": ["dense_h_to_4h"]
}
# LoRA specific attributes
supported_lora_modules = [
"query_key_value",
"dense",
"dense_h_to_4h",
"dense_4h_to_h",
]
embedding_modules = {}
embedding_padding_modules = []
class ChatGLMV(ChatGLMBaseModel, SupportsMultiModal):
packed_modules_mapping = {
"query_key_value": ["query_key_value"],
"dense_h_to_4h": ["dense_h_to_4h"],
"merged_proj": ["gate_proj", "dense_h_to_4h"]
}
# LoRA specific attributes
supported_lora_modules = [
"query_key_value",
"dense",
"dense_h_to_4h",
"dense_4h_to_h",
# vision
"fc1",
"fc2",
"merged_proj",
"linear_proj"
]
embedding_modules = {}
embedding_padding_modules = []
def get_mm_mapping(self) -> MultiModelKeys:
"""
Get the module prefix in multimodal models
"""
return MultiModelKeys.from_string_field(
language_model="transformer.encoder",
connector="transformer.vision.linear_proj",
tower_model="transformer.vision.transformer")
def get_multimodal_embeddings(self, **kwargs) -> Optional[NestedTensors]:
return self.transformer.get_multimodal_embeddings(**kwargs)
def get_input_embeddings(
self,
input_ids: torch.Tensor,
multimodal_embeddings: Optional[NestedTensors] = None,
) -> torch.Tensor:
return self.transformer.get_input_embeddings(input_ids,
multimodal_embeddings)
@MULTIMODAL_REGISTRY.register_processor(GLM4VMultiModalProcessor,
info=GLM4VProcessingInfo,
dummy_inputs=GLM4VDummyInputsBuilder)
class ChatGLMForCausalLM(ChatGLMBaseModel, SupportsLoRA, SupportsPP,
SupportsMultiModal):
# Ensure that the LoRA support check passes when the class is not
# initialized, but set all these attributes to empty.
# These will be updated when an instance class is selected
packed_modules_mapping = {}
supported_lora_modules = []
embedding_modules = {}
embedding_padding_modules = []
def __new__(
cls,
vllm_config: VllmConfig,
prefix: str = "",
) -> None:
config = vllm_config.model_config.hf_config
# Initialize VL
if hasattr(config, "vision_config"): # noqa: SIM108
instance_cls = ChatGLMV
# Initialize LLM
else:
instance_cls = ChatGLM
# quant_config references base class members,
# so update values before init is called
cls.packed_modules_mapping.update(instance_cls.packed_modules_mapping)
cls.supported_lora_modules += instance_cls.supported_lora_modules
cls.embedding_modules.update(instance_cls.embedding_modules)
cls.embedding_padding_modules += instance_cls.embedding_padding_modules
return instance_cls(vllm_config=vllm_config, prefix=prefix)