Support glm4.1v and glm4.5v (#8798)

Signed-off-by: Xinyuan Tong <justinning0323@outlook.com>
Signed-off-by: Xinyuan Tong <xinyuantong.cs@gmail.com>
Co-authored-by: Xinyuan Tong <justinning0323@outlook.com>
Co-authored-by: Xinyuan Tong <115166877+JustinTong0323@users.noreply.github.com>
Co-authored-by: Xinyuan Tong <xinyuantong.cs@gmail.com>
Co-authored-by: zRzRzRzRzRzRzR <2448370773@qq.com>
Co-authored-by: Minglei Zhu <mingleizhu1122@gmail.com>
Co-authored-by: Chang Su <csu272@usc.edu>
This commit is contained in:
Binyao Jiang
2025-08-09 00:59:13 -07:00
committed by GitHub
co-authored by Xinyuan Tong Xinyuan Tong Xinyuan Tong zRzRzRzRzRzRzR Minglei Zhu Chang Su
parent faa25df1ae
commit f29aba8c6e
21 changed files with 1584 additions and 19 deletions
+6
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@@ -218,6 +218,12 @@ class Glm4Model(nn.Module):
self.norm = RMSNorm(config.hidden_size, eps=config.rms_norm_eps)
def get_input_embeddings(self) -> nn.Embedding:
return self.embed_tokens
def dtype(self) -> torch.dtype:
return next(self.parameters()).dtype
@torch.no_grad()
def forward(
self,
+589
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@@ -0,0 +1,589 @@
import logging
from functools import lru_cache, partial
from typing import Iterable, List, Optional, Tuple
import torch
import torch.nn as nn
import torch.nn.functional as F
from transformers.models.glm4v.configuration_glm4v import Glm4vConfig, Glm4vVisionConfig
from sglang.srt.hf_transformers_utils import get_processor
from sglang.srt.layers.activation import SiluAndMul
from sglang.srt.layers.layernorm import RMSNorm
from sglang.srt.layers.linear import (
ColumnParallelLinear,
MergedColumnParallelLinear,
RowParallelLinear,
)
from sglang.srt.layers.logits_processor import LogitsProcessor
from sglang.srt.layers.pooler import Pooler, PoolingType
from sglang.srt.layers.quantization.base_config import QuantizationConfig
from sglang.srt.layers.vocab_parallel_embedding import ParallelLMHead
from sglang.srt.managers.schedule_batch import MultimodalDataItem
from sglang.srt.model_loader.weight_utils import default_weight_loader
from sglang.srt.models.glm4 import Glm4Model
from sglang.srt.models.qwen2_5_vl import (
Qwen2_5_VisionBlock,
Qwen2_5_VLForConditionalGeneration,
)
from sglang.srt.utils import add_prefix
logger = logging.getLogger(__name__)
cached_get_processor = lru_cache(get_processor)
class Glm4vRMSNorm(RMSNorm):
def forward(self, x: torch.Tensor) -> torch.Tensor:
original_shape = x.shape
x_2d = x.contiguous().reshape(-1, original_shape[-1])
x_2d = super().forward(x_2d)
x = x_2d.reshape(original_shape)
return x
class Glm4vVisionMLP(nn.Module):
def __init__(
self,
in_features: int,
hidden_features: int,
bias: bool = False,
quant_config: Optional[QuantizationConfig] = None,
prefix: str = "",
):
super().__init__()
self.gate_up_proj = MergedColumnParallelLinear(
input_size=in_features,
output_sizes=[hidden_features] * 2,
bias=bias,
quant_config=quant_config,
prefix=add_prefix("gate_up_proj", prefix),
)
self.down_proj = RowParallelLinear(
hidden_features,
in_features,
bias=bias,
quant_config=quant_config,
prefix=add_prefix("down_proj", prefix),
)
self.act_fn = SiluAndMul()
def forward(self, x: torch.Tensor):
gate_up, _ = self.gate_up_proj(x)
x = self.act_fn(gate_up)
x, _ = self.down_proj(x)
return x
class Glm4vVisionBlock(Qwen2_5_VisionBlock):
def __init__(
self,
config: Glm4vVisionConfig,
norm_layer: Optional[nn.Module] = None,
quant_config: Optional[QuantizationConfig] = None,
prefix: str = "",
) -> None:
super().__init__(
dim=config.hidden_size,
intermediate_dim=config.out_hidden_size,
num_heads=config.num_heads,
hidden_act=config.hidden_act,
norm_layer=norm_layer,
quant_config=quant_config,
prefix=prefix,
)
self.norm1 = Glm4vRMSNorm(config.hidden_size, eps=config.rms_norm_eps)
self.norm2 = Glm4vRMSNorm(config.hidden_size, eps=config.rms_norm_eps)
self.mlp = Glm4vVisionMLP(
config.hidden_size,
config.out_hidden_size,
bias=False,
quant_config=quant_config,
prefix=add_prefix("mlp", prefix),
)
class Glm4vVisionPatchEmbed(nn.Module):
def __init__(
self,
patch_size: int = 14,
temporal_patch_size: int = 2,
in_channels: int = 3,
hidden_size: int = 1536,
) -> None:
super().__init__()
self.patch_size = patch_size
self.temporal_patch_size = temporal_patch_size
self.hidden_size = hidden_size
self.in_channels = in_channels
kernel_size = (temporal_patch_size, patch_size, patch_size)
self.proj = nn.Conv3d(
in_channels,
hidden_size,
kernel_size=kernel_size,
stride=kernel_size,
bias=True,
)
def forward(self, x: torch.Tensor) -> torch.Tensor:
x = x.view(
-1,
self.in_channels,
self.temporal_patch_size,
self.patch_size,
self.patch_size,
)
x = self.proj(x).view(-1, self.hidden_size)
return x
class Glm4vPatchMerger(nn.Module):
def __init__(
self,
d_model: int,
context_dim: int,
quant_config: Optional[QuantizationConfig] = None,
bias: bool = False,
prefix: str = "",
) -> None:
super().__init__()
self.hidden_size = d_model
self.proj = ColumnParallelLinear(
self.hidden_size,
self.hidden_size,
bias=bias,
quant_config=quant_config,
prefix=add_prefix("proj", prefix),
gather_output=True,
)
self.post_projection_norm = nn.LayerNorm(self.hidden_size)
self.gate_up_proj = MergedColumnParallelLinear(
input_size=self.hidden_size,
output_sizes=[context_dim] * 2,
bias=bias,
quant_config=quant_config,
prefix=add_prefix("gate_up_proj", prefix),
)
self.down_proj = RowParallelLinear(
context_dim,
self.hidden_size,
bias=bias,
quant_config=quant_config,
prefix=add_prefix("down_proj", prefix),
)
self.extra_activation_func = nn.GELU()
def forward(self, x: torch.Tensor):
x, _ = self.proj(x)
x = self.extra_activation_func(self.post_projection_norm(x))
gate_up, _ = self.gate_up_proj(x)
gate, up = gate_up.chunk(2, dim=-1)
x = F.silu(gate) * up
x, _ = self.down_proj(x)
return x
class Glm4vVisionEmbeddings(nn.Module):
def __init__(self, config: Glm4vVisionConfig):
super().__init__()
self.config = config
self.embed_dim = config.hidden_size
self.image_size = config.image_size
self.patch_size = config.patch_size
self.num_patches = (self.image_size // self.patch_size) ** 2
self.num_positions = self.num_patches
self.position_embedding = nn.Embedding(self.num_positions, self.embed_dim)
self.register_buffer(
"position_ids",
torch.arange(self.num_positions).expand((1, -1)),
persistent=False,
)
def forward(
self, embeddings, lengths, image_shapes, h_coords, w_coords
) -> torch.Tensor:
pos_embed_weight = self.position_embedding.weight
hidden_size = pos_embed_weight.shape[1]
total_seq = h_coords.shape[0]
device = pos_embed_weight.device
# Move coordinates to correct device
h_coords, w_coords = h_coords.to(device), w_coords.to(device)
# Handle empty sequence case
if total_seq == 0:
adapted_pos_embed = torch.empty(
0, hidden_size, device=device, dtype=pos_embed_weight.dtype
)
else:
# Convert inputs to tensors if needed
if isinstance(lengths, list):
lengths = torch.tensor(lengths, device=device, dtype=torch.long)
if not isinstance(image_shapes, torch.Tensor):
image_shapes = torch.tensor(
image_shapes, device=device, dtype=torch.long
)
# Prepare 2D position embedding
orig_size_sq = pos_embed_weight.shape[0]
orig_size = int(orig_size_sq**0.5)
pos_embed_2d = (
pos_embed_weight.view(orig_size, orig_size, hidden_size)
.permute(2, 0, 1)
.unsqueeze(0)
.to(device=device, dtype=torch.float32)
)
# Calculate target dimensions for each patch
target_h = torch.cat(
[image_shapes[i, 1].repeat(lengths[i]) for i in range(len(lengths))]
).to(device=device, dtype=torch.float32)
target_w = torch.cat(
[image_shapes[i, 2].repeat(lengths[i]) for i in range(len(lengths))]
).to(device=device, dtype=torch.float32)
# Normalize coordinates to [-1, 1] range for grid_sample
h_coords = h_coords.to(device=device, dtype=torch.float32)
w_coords = w_coords.to(device=device, dtype=torch.float32)
norm_w = ((w_coords + 0.5) / target_w) * 2 - 1
norm_h = ((h_coords + 0.5) / target_h) * 2 - 1
# Create sampling grid
grid = torch.stack((norm_w, norm_h), dim=-1).unsqueeze(0).unsqueeze(2)
# Perform bicubic interpolation
interpolated_embed_fp32 = F.grid_sample(
pos_embed_2d,
grid,
mode="bicubic",
align_corners=False,
padding_mode="border",
)
# Reshape and convert back to original dtype
adapted_pos_embed_fp32 = (
interpolated_embed_fp32.squeeze(0).squeeze(-1).permute(1, 0)
)
adapted_pos_embed = adapted_pos_embed_fp32.to(pos_embed_weight.dtype).to(
embeddings.device
)
# Add adapted position encoding to embeddings
embeddings = embeddings + adapted_pos_embed
return embeddings
class Glm4vVisionRotaryEmbedding(nn.Module):
def __init__(self, dim: int, theta: float = 10000.0) -> None:
super().__init__()
self.dim = dim
self.theta = theta
inv_freq = 1.0 / (theta ** (torch.arange(0, dim, 2, dtype=torch.float) / dim))
self.register_buffer("inv_freq", inv_freq, persistent=False)
self._seq_len_cached = 0
self._freqs_cached = None
def update_freqs_cache(self, seqlen: int) -> None:
if seqlen > self._seq_len_cached:
seqlen *= 2
self._seq_len_cached = seqlen
self.inv_freq = 1.0 / (
self.theta
** (
torch.arange(
0,
self.dim,
2,
dtype=torch.float,
device=self.inv_freq.device,
)
/ self.dim
)
)
seq = torch.arange(
seqlen, device=self.inv_freq.device, dtype=self.inv_freq.dtype
)
freqs = torch.outer(seq, self.inv_freq)
self._freqs_cached = freqs
def forward(self, seqlen: int) -> torch.Tensor:
self.update_freqs_cache(seqlen)
return self._freqs_cached[:seqlen]
class Glm4vVisionModel(nn.Module):
def __init__(
self,
vision_config: Glm4vVisionConfig,
norm_eps: float = 1e-6,
quant_config: Optional[QuantizationConfig] = None,
prefix: str = "",
) -> None:
super().__init__()
patch_size = vision_config.patch_size
temporal_patch_size = vision_config.temporal_patch_size
in_channels = vision_config.in_channels
depth = vision_config.depth
self.hidden_size = vision_config.hidden_size
self.num_heads = vision_config.num_heads
self.patch_size = vision_config.patch_size
self.spatial_merge_size = vision_config.spatial_merge_size
self.out_hidden_size = vision_config.out_hidden_size
self.patch_embed = Glm4vVisionPatchEmbed(
patch_size=patch_size,
temporal_patch_size=temporal_patch_size,
in_channels=in_channels,
hidden_size=self.hidden_size,
)
norm_layer = partial(Glm4vRMSNorm, eps=norm_eps)
head_dim = self.hidden_size // self.num_heads
self.rotary_pos_emb = Glm4vVisionRotaryEmbedding(head_dim // 2)
self.blocks = nn.ModuleList(
[
Glm4vVisionBlock(
config=vision_config,
norm_layer=norm_layer,
quant_config=quant_config,
prefix=add_prefix(f"blocks.{layer_idx}", prefix),
)
for layer_idx in range(depth)
]
)
self.merger = Glm4vPatchMerger(
d_model=vision_config.out_hidden_size,
context_dim=vision_config.intermediate_size,
quant_config=quant_config,
bias=False,
prefix=add_prefix("merger", prefix),
)
self.embeddings = Glm4vVisionEmbeddings(vision_config)
self.post_conv_layernorm = Glm4vRMSNorm(
vision_config.hidden_size, eps=vision_config.rms_norm_eps
)
self.downsample = nn.Conv2d(
in_channels=vision_config.hidden_size,
out_channels=vision_config.out_hidden_size,
kernel_size=vision_config.spatial_merge_size,
stride=vision_config.spatial_merge_size,
)
self.post_layernorm = Glm4vRMSNorm(
vision_config.hidden_size, eps=vision_config.rms_norm_eps
)
@property
def dtype(self) -> torch.dtype:
return self.patch_embed.proj.weight.dtype
@property
def device(self) -> torch.device:
return self.patch_embed.proj.weight.device
def rot_pos_emb(self, grid_thw: torch.Tensor) -> torch.Tensor:
pos_ids = []
for t, h, w in grid_thw:
hpos_ids = torch.arange(h).unsqueeze(1).expand(-1, w)
wpos_ids = torch.arange(w).unsqueeze(0).expand(h, -1)
hpos_ids = (
hpos_ids.reshape(
h // self.spatial_merge_size,
self.spatial_merge_size,
w // self.spatial_merge_size,
self.spatial_merge_size,
)
.permute(0, 2, 1, 3)
.flatten()
)
wpos_ids = (
wpos_ids.reshape(
h // self.spatial_merge_size,
self.spatial_merge_size,
w // self.spatial_merge_size,
self.spatial_merge_size,
)
.permute(0, 2, 1, 3)
.flatten()
)
pos_ids.append(torch.stack([hpos_ids, wpos_ids], dim=-1).repeat(t, 1))
pos_ids = torch.cat(pos_ids, dim=0)
max_grid_size = grid_thw[:, 1:].max()
rotary_pos_emb_full = self.rotary_pos_emb(max_grid_size)
rotary_pos_emb = rotary_pos_emb_full[pos_ids].flatten(1)
return rotary_pos_emb, pos_ids
def forward(self, x: torch.Tensor, grid_thw: torch.Tensor) -> torch.Tensor:
# patchify
x = x.to(device=self.device, dtype=self.dtype)
x = self.patch_embed(x)
x = self.post_conv_layernorm(x)
# compute position embedding
rotary_pos_emb, image_type_ids = self.rot_pos_emb(grid_thw)
# compute cu_seqlens
cu_seqlens = torch.repeat_interleave(
grid_thw[:, 1] * grid_thw[:, 2], grid_thw[:, 0]
).cumsum(dim=0, dtype=torch.int32)
cu_seqlens = F.pad(cu_seqlens, (1, 0), "constant", 0)
seqlens = (cu_seqlens[1:] - cu_seqlens[:-1]).tolist()
x = self.embeddings(
x, seqlens, grid_thw, image_type_ids[:, 0], image_type_ids[:, 1]
)
emb = torch.cat((rotary_pos_emb, rotary_pos_emb), dim=-1)
rotary_pos_emb_tuple = (emb.cos(), emb.sin())
# x.shape: (s, b, d) where b=1 for vision processing
# transformers
x = x.unsqueeze(1)
for blk in self.blocks:
x = blk(x, cu_seqlens=cu_seqlens, position_embeddings=rotary_pos_emb_tuple)
# adapter
x = self.post_layernorm(x)
x = x.view(-1, self.spatial_merge_size, self.spatial_merge_size, x.shape[-1])
x = x.permute(0, 3, 1, 2)
x = self.downsample(x).view(-1, self.out_hidden_size)
x = self.merger(x)
return x
class Glm4vForConditionalGeneration(Qwen2_5_VLForConditionalGeneration):
def __init__(
self,
config: Glm4vConfig,
quant_config: Optional[QuantizationConfig] = None,
prefix: str = "",
) -> None:
nn.Module.__init__(self)
self.config = config
self.model = Glm4Model(
config,
quant_config,
prefix=add_prefix("model", prefix),
)
self.visual = Glm4vVisionModel(
config.vision_config,
norm_eps=getattr(config, "rms_norm_eps", 1e-5),
quant_config=quant_config,
prefix=add_prefix("visual", prefix),
)
if config.tie_word_embeddings:
self.lm_head = self.model.embed_tokens
else:
self.lm_head = ParallelLMHead(
config.vocab_size,
config.hidden_size,
quant_config=quant_config,
prefix=add_prefix("lm_head", prefix),
)
self.logits_processor = LogitsProcessor(config)
self.pooler = Pooler(pooling_type=PoolingType.LAST, normalize=True)
self.is_mrope_enabled = "mrope_section" in self.config.rope_scaling
def get_image_feature(self, items: List[MultimodalDataItem]) -> torch.Tensor:
pixel_values = torch.cat(
[item.feature.squeeze(0) for item in items], dim=0
).type(self.visual.dtype)
image_grid_thw = torch.concat([item.image_grid_thw for item in items], dim=0)
# For multi-image, pixel_values is [num_of_images, L, C] shape
# assert pixel_values.dim() == 2, pixel_values.dim()
assert image_grid_thw.dim() == 2, image_grid_thw.dim()
image_embeds = self.visual(pixel_values, grid_thw=image_grid_thw)
split_sizes = (
image_grid_thw.prod(-1) // self.visual.spatial_merge_size**2
).tolist()
image_embeds = torch.split(image_embeds, split_sizes)
return torch.cat(image_embeds)
def get_video_feature(self, items: List[MultimodalDataItem]) -> torch.Tensor:
pixel_values_videos = torch.cat(
[item.feature.squeeze(0) for item in items], dim=0
).type(self.visual.dtype)
video_grid_thw = torch.concat([item.video_grid_thw for item in items], dim=0)
# For multi-video, pixel_values_videos is [num_of_videos, L, C] shape
# assert pixel_values_videos.dim() == 2, pixel_values_videos.dim()
assert video_grid_thw.dim() == 2, video_grid_thw.dim()
# reshape video_grid_thw -> [b, 3] -> [1, h, w] * frames
temp_frames_hw = []
for t, h, w in video_grid_thw:
repeated_row = (
torch.tensor([1, h.item(), w.item()]).unsqueeze(0).repeat(t, 1)
)
temp_frames_hw.append(repeated_row)
flattened_video_grid_thw = torch.cat(temp_frames_hw, dim=0)
video_embeds = self.visual(
pixel_values_videos, grid_thw=flattened_video_grid_thw
)
split_sizes = (
video_grid_thw.prod(-1) // self.visual.spatial_merge_size**2
).tolist()
video_embeds = torch.split(video_embeds, split_sizes)
return torch.cat(video_embeds)
def load_weights(self, weights: Iterable[Tuple[str, torch.Tensor]]):
stacked_params_mapping = [
# (param_name, shard_name, shard_id)
(".qkv_proj", ".q_proj", "q"),
(".qkv_proj", ".k_proj", "k"),
(".qkv_proj", ".v_proj", "v"),
(".gate_up_proj", ".up_proj", 1),
(".gate_up_proj", ".gate_proj", 0),
]
params_dict = dict(self.named_parameters(remove_duplicate=False))
for name, loaded_weight in weights:
if "language_model." in name:
name = name.replace("language_model.", "")
if "model.visual." in name:
name = name.replace("model.visual.", "visual.")
if "rotary_emb.inv_freq" in name:
continue
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
param = params_dict[name]
weight_loader = param.weight_loader
weight_loader(param, loaded_weight, shard_id)
break
else:
if "visual" in name:
# adapt to VisionAttention
name = name.replace(r"attn.qkv.", r"attn.qkv_proj.")
try:
# Skip loading extra bias for GPTQ models.
if name.endswith(".bias") and name not in params_dict:
continue
param = params_dict[name]
except KeyError:
print(params_dict.keys())
raise
weight_loader = getattr(param, "weight_loader", default_weight_loader)
weight_loader(param, loaded_weight)
EntryClass = [Glm4vForConditionalGeneration]
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import logging
from functools import lru_cache
from typing import Iterable, Optional, Tuple
import torch
import torch.nn as nn
from transformers.models.glm4v_moe.configuration_glm4v_moe import Glm4vMoeConfig
from sglang.srt.distributed import (
get_moe_expert_parallel_world_size,
get_tensor_model_parallel_rank,
get_tensor_model_parallel_world_size,
parallel_state,
tensor_model_parallel_all_reduce,
)
from sglang.srt.hf_transformers_utils import get_processor
from sglang.srt.layers.dp_attention import (
get_attention_tp_rank,
get_attention_tp_size,
get_local_attention_dp_size,
)
from sglang.srt.layers.logits_processor import LogitsProcessor
from sglang.srt.layers.moe.ep_moe.layer import get_moe_impl_class
from sglang.srt.layers.pooler import Pooler, PoolingType
from sglang.srt.layers.quantization.base_config import QuantizationConfig
from sglang.srt.layers.vocab_parallel_embedding import ParallelLMHead
from sglang.srt.managers.schedule_batch import global_server_args_dict
from sglang.srt.model_loader.weight_utils import default_weight_loader
from sglang.srt.models.glm4_moe import Glm4MoeModel
from sglang.srt.models.glm4v import Glm4vForConditionalGeneration, Glm4vVisionModel
from sglang.srt.utils import add_prefix, is_cuda, log_info_on_rank0
_is_cuda = is_cuda()
logger = logging.getLogger(__name__)
cached_get_processor = lru_cache(get_processor)
class Glm4vMoeForConditionalGeneration(Glm4vForConditionalGeneration):
def __init__(
self,
config: Glm4vMoeConfig,
quant_config: Optional[QuantizationConfig] = None,
prefix: str = "",
) -> None:
nn.Module.__init__(self)
config.moe_layer_freq = 1
self.config = config
self.tp_size = get_tensor_model_parallel_world_size()
self.dp_size = get_local_attention_dp_size()
self.quant_config = quant_config
self.determine_num_fused_shared_experts("Glm4MoeForCausalLM")
self.num_fused_shared_experts = (
0
if global_server_args_dict["disable_shared_experts_fusion"]
else config.n_shared_experts
)
self.model = Glm4MoeModel(
config,
quant_config,
prefix=add_prefix("language_model", prefix),
)
self.visual = Glm4vVisionModel(
config.vision_config,
norm_eps=getattr(config, "rms_norm_eps", 1e-5),
quant_config=quant_config,
prefix=add_prefix("visual", prefix),
)
self.lm_head = ParallelLMHead(
config.vocab_size,
config.hidden_size,
quant_config=quant_config,
prefix=add_prefix("lm_head", prefix),
use_attn_tp_group=global_server_args_dict["enable_dp_lm_head"],
)
self.logits_processor = LogitsProcessor(config)
self.pooler = Pooler(pooling_type=PoolingType.LAST, normalize=True)
self.is_mrope_enabled = "mrope_section" in self.config.rope_scaling
def determine_num_fused_shared_experts(
self, architecture: str = "Glm4MoeForCausalLM"
):
self.num_fused_shared_experts = 0
if global_server_args_dict["disable_shared_experts_fusion"]:
return
# Only Deepseek V3/R1 can use shared experts fusion optimization now.
disable_reason = None
if (
not _is_cuda
or torch.cuda.get_device_capability("cuda") < (8, 0)
or self.config.architectures[0] != architecture
or self.config.n_shared_experts != 1
):
disable_reason = "Only GLM-4.5 on NV-platform with capability >= 80 can use shared experts fusion optimization."
elif get_moe_expert_parallel_world_size() > 1:
disable_reason = "Deepseek and GLM-4.5 can not use shared experts fusion optimization under expert parallelism."
if disable_reason is not None:
global_server_args_dict["disable_shared_experts_fusion"] = True
self.num_fused_shared_experts = 0
log_info_on_rank0(
logger,
f"{disable_reason} Shared experts fusion optimization is disabled.",
)
return
self.num_fused_shared_experts = self.config.n_shared_experts
def load_weights(self, weights: Iterable[Tuple[str, torch.Tensor]], is_nextn=False):
if is_nextn:
if hasattr(self.config, "num_nextn_predict_layers"):
num_nextn_layers = self.config.num_nextn_predict_layers
assert num_nextn_layers == 1, "Only 1 nextn layer is supported"
# compatible with old design
nextn_layer_id = (
0
if self.config.num_hidden_layers == 1
else self.config.num_hidden_layers
)
else:
raise ValueError("num_nextn_predict_layers is not in the config")
stacked_params_mapping = [
# (param_name, shard_name, shard_id)
("qkv_proj", "q_proj", "q"),
("qkv_proj", "k_proj", "k"),
("qkv_proj", "v_proj", "v"),
("gate_up_proj", "gate_proj", 0),
("gate_up_proj", "up_proj", 1),
]
if self.num_fused_shared_experts > 0:
assert self.num_fused_shared_experts == 1
weights_list = list(weights)
weights_dict = dict(weights_list)
if self.quant_config is not None:
if self.quant_config.get_name() == "w8a8_int8":
suffix_list = [
"down_proj.weight",
"down_proj.weight_scale",
"gate_proj.weight",
"gate_proj.weight_scale",
"up_proj.weight",
"up_proj.weight_scale",
]
elif (
self.quant_config.get_name() == "fp8"
or self.quant_config.get_name() == "blockwise_int8"
or self.quant_config.get_name() == "compressed_tensors"
):
suffix_list = [
"down_proj.weight",
"down_proj.weight_scale",
"gate_proj.weight",
"gate_proj.weight_scale",
"up_proj.weight",
"up_proj.weight_scale",
]
elif self.quant_config.get_name() == "awq":
suffix_list = [
"down_proj.qweight",
"down_proj.qzeros",
"down_proj.scales",
"gate_proj.qweight",
"gate_proj.qzeros",
"gate_proj.scales",
"up_proj.qweight",
"up_proj.qzeros",
"up_proj.scales",
]
elif self.quant_config.get_name() == "modelopt_fp4":
suffix_list = [
"down_proj.weight",
"down_proj.weight_scale",
"down_proj.weight_scale_2",
"down_proj.input_scale",
"gate_proj.weight",
"gate_proj.weight_scale",
"gate_proj.weight_scale_2",
"gate_proj.input_scale",
"up_proj.weight",
"up_proj.weight_scale",
"up_proj.weight_scale_2",
"up_proj.input_scale",
]
else:
raise ValueError(
f"Unsupported shared expert fusion for quantization: {self.quant_config.get_name()}."
)
else:
suffix_list = [
"down_proj.weight",
"gate_proj.weight",
"up_proj.weight",
]
names_to_remove = []
moe_layers = (
range(
self.config.first_k_dense_replace,
self.config.num_hidden_layers,
self.config.moe_layer_freq,
)
if not is_nextn
else [nextn_layer_id]
)
for moe_layer in moe_layers:
for suffix in suffix_list:
shared_expert_weight_name = (
f"model.layers.{moe_layer}.mlp.shared_experts.{suffix}"
)
# online fp8 quantization does not load weight_scale
if shared_expert_weight_name not in weights_dict:
continue
weights_list.append(
(
f"model.layers.{moe_layer}."
f"mlp.experts."
f"{self.config.n_routed_experts + 0}"
f".{suffix}",
weights_dict[shared_expert_weight_name],
)
)
names_to_remove += [shared_expert_weight_name]
weights = [w for w in weights_list if w[0] not in names_to_remove]
# Params for weights, fp8 weight scales, fp8 activation scales
# (param_name, weight_name, expert_id, shard_id)
expert_params_mapping = get_moe_impl_class().make_expert_params_mapping(
ckpt_gate_proj_name="gate_proj",
ckpt_down_proj_name="down_proj",
ckpt_up_proj_name="up_proj",
num_experts=self.config.n_routed_experts + self.num_fused_shared_experts,
)
# Fuse q_a_proj and kv_a_proj_with_mqa along output dimension when q_lora_rank is not None
fuse_qkv_a_proj = hasattr(self.config, "q_lora_rank") and (
self.config.q_lora_rank is not None
)
cached_a_proj = {} if fuse_qkv_a_proj else None
if is_nextn:
nextn_layer_prefix = f"model.layers.{nextn_layer_id}"
nextn_spec_weight_names = [
"shared_head.norm",
"eh_proj",
"enorm",
"hnorm",
]
params_dict = dict(self.named_parameters())
weight_names = []
for name, loaded_weight in weights:
weight_names.append(name)
if not is_nextn:
if hasattr(self.config, "num_nextn_predict_layers"):
num_nextn_layers = self.config.num_nextn_predict_layers
if num_nextn_layers > 0 and name.startswith("model.layers"):
name_list = name.split(".")
if (
len(name_list) >= 3
and int(name_list[2]) >= self.config.num_hidden_layers
):
continue
else:
if not name.startswith(nextn_layer_prefix):
continue
# Use shared head and embed weights from target model
if "shared_head.head" in name or "embed_tokens" in name:
continue
is_decoder = True
# For nextn specific weights
for weight_name in nextn_spec_weight_names:
if weight_name in name:
name = name.replace(nextn_layer_prefix, "model")
is_decoder = False
break
# For decoder layer weights
if is_decoder:
name = name.replace(nextn_layer_prefix, "model.decoder")
if "language_model." in name:
name = name.replace("language_model.", "")
if "model.visual." in name:
name = name.replace("model.visual.", "visual.")
if "rotary_emb.inv_freq" in name:
continue
for param_name, weight_name, shard_id in stacked_params_mapping:
# Skip non-stacked layers and experts (experts handled below).
if weight_name not in name:
continue
# We have mlp.experts[0].gate_proj in the checkpoint.
# Since we handle the experts below in expert_params_mapping,
# we need to skip here BEFORE we update the name, otherwise
# name will be updated to mlp.experts[0].gate_up_proj, which
# will then be updated below in expert_params_mapping
# for mlp.experts[0].gate_gate_up_proj, which breaks load.
if ("mlp.experts." in name) and name not in params_dict:
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
param = params_dict[name]
weight_loader = param.weight_loader
weight_loader(param, loaded_weight, shard_id)
break
else:
for mapping in expert_params_mapping:
param_name, weight_name, expert_id, shard_id = mapping
if weight_name not in name:
continue
name = name.replace(weight_name, param_name)
param = params_dict[name]
weight_loader = param.weight_loader
weight_loader(
param,
loaded_weight,
name,
shard_id=shard_id,
expert_id=expert_id,
)
break
else:
if "visual" in name:
# adapt to VisionAttention
name = name.replace(r"attn.qkv.", r"attn.qkv_proj.")
# Skip loading extra bias for GPTQ models.
if name.endswith(".bias") and name not in params_dict:
continue
if fuse_qkv_a_proj and (
"q_a_proj" in name or "kv_a_proj_with_mqa" in name
):
cached_a_proj[name] = loaded_weight
q_a_proj_name = (
name
if "q_a_proj" in name
else name.replace("kv_a_proj_with_mqa", "q_a_proj")
)
kv_a_proj_name = (
name
if "kv_a_proj_with_mqa" in name
else name.replace("q_a_proj", "kv_a_proj_with_mqa")
)
# When both q_a_proj and kv_a_proj_with_mqa has been cached, load the fused weight to parameter
if (
q_a_proj_name in cached_a_proj
and kv_a_proj_name in cached_a_proj
):
q_a_proj_weight = cached_a_proj[q_a_proj_name]
kv_a_proj_weight = cached_a_proj[kv_a_proj_name]
fused_weight = torch.cat(
[q_a_proj_weight, kv_a_proj_weight], dim=0
)
param_name = (
name.replace("q_a_proj", "fused_qkv_a_proj_with_mqa")
if "q_a_proj" in name
else name.replace(
"kv_a_proj_with_mqa", "fused_qkv_a_proj_with_mqa"
)
)
param = params_dict[param_name]
weight_loader = getattr(
param, "weight_loader", default_weight_loader
)
weight_loader(param, fused_weight)
cached_a_proj.pop(q_a_proj_name)
cached_a_proj.pop(kv_a_proj_name)
else:
if (
"k_scale" in name or "v_scale" in name
) and name not in params_dict:
# modelopt attn kv scale is named differently
if any(scale in name for scale in ["k_scale", "v_scale"]):
name = name.replace("_proj", "attn_mqa")
else:
logger.warning(
f"Unknown scale found in checkpoint: {name}"
)
param = params_dict[name]
weight_loader = getattr(
param, "weight_loader", default_weight_loader
)
weight_loader(param, loaded_weight)
EntryClass = [Glm4vMoeForConditionalGeneration]