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734 lines
27 KiB
Python
734 lines
27 KiB
Python
# Copyright 2025 Qwen Team
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# Copyright 2025 SGLang Team
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# ==============================================================================
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"""Inference-only Qwen3-VL model compatible with HuggingFace weights."""
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import math
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from typing import Iterable, List, Optional, Tuple
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import numpy as np
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import torch
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import torch.nn as nn
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import torch.nn.functional as F
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from transformers import PreTrainedModel
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from transformers.activations import ACT2FN
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from transformers.modeling_outputs import BaseModelOutput
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from sglang.srt.configs.qwen3_omni import (
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Qwen3OmniMoeAudioEncoderConfig,
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Qwen3OmniMoeThinkerConfig,
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Qwen3OmniMoeVisionEncoderConfig,
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)
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from sglang.srt.configs.qwen3_vl import Qwen3VLMoeConfig
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from sglang.srt.layers.attention.vision import VisionAttention
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from sglang.srt.layers.linear import (
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ColumnParallelLinear,
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ReplicatedLinear,
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RowParallelLinear,
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)
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from sglang.srt.layers.moe.fused_moe_triton.layer import FusedMoE
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from sglang.srt.layers.quantization.base_config import QuantizationConfig
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from sglang.srt.managers.schedule_batch import MultimodalDataItem
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from sglang.srt.model_loader.weight_utils import default_weight_loader
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from sglang.srt.models.qwen3_vl import Qwen3VLMoeVisionModel
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from sglang.srt.models.qwen3_vl_moe import (
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Qwen3MoeLLMModel,
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Qwen3VLMoeForConditionalGeneration,
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load_fused_expert_weights,
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)
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from sglang.srt.runtime_context import get_parallel
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from sglang.srt.utils import add_prefix, is_cpu, is_npu, logger
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_is_cpu = is_cpu()
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def get_head_dim_and_projection_size(
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embed_dim: int,
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num_heads: int,
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original_num_heads: Optional[int] = None,
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) -> Tuple[Optional[int], int]:
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if (not _is_cpu) or original_num_heads is None:
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return None, embed_dim
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# On CPU, TP may pad num_heads (e.g. for tp=3/6). In that case we keep the
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# original per-head width (from original_num_heads) and recompute projection_size
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# with padded num_heads, so attention tensor shapes stay TP-friendly while
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# preserving checkpoint semantics.
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head_dim = embed_dim // original_num_heads
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projection_size = num_heads * head_dim
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return head_dim, projection_size
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class Qwen3OmniMoeAudioEncoderLayer(nn.Module):
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def __init__(
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self,
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config: Qwen3OmniMoeAudioEncoderConfig,
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quant_config: Optional[QuantizationConfig] = None,
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prefix: str = "",
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):
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super().__init__()
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embed_dim = config.d_model
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self.embed_dim = config.d_model
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head_dim, projection_size = get_head_dim_and_projection_size(
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embed_dim=embed_dim,
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num_heads=config.encoder_attention_heads,
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original_num_heads=getattr(
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config, "original_encoder_attention_heads", None
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),
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)
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self.self_attn = VisionAttention(
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embed_dim=embed_dim,
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num_heads=config.encoder_attention_heads,
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head_dim=head_dim,
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projection_size=projection_size,
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use_qkv_parallel=True,
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proj_bias=True,
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flatten_batch=True,
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quant_config=quant_config,
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prefix=add_prefix("attn", prefix),
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)
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self.self_attn_layer_norm = nn.LayerNorm(self.embed_dim)
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self.dropout = config.dropout
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self.activation_fn = ACT2FN[config.activation_function]
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self.activation_dropout = config.activation_dropout
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tp_size = get_parallel().tp_size
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use_replicated = config.encoder_ffn_dim % tp_size != 0
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fc1_cls = ReplicatedLinear if use_replicated else ColumnParallelLinear
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fc2_cls = ReplicatedLinear if use_replicated else RowParallelLinear
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self.fc1 = fc1_cls(
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self.embed_dim,
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config.encoder_ffn_dim,
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quant_config=quant_config,
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bias=True,
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prefix=f"{prefix}.fc1",
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)
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self.fc2 = fc2_cls(
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config.encoder_ffn_dim,
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self.embed_dim,
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quant_config=quant_config,
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bias=True,
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prefix=f"{prefix}.fc2",
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)
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self.final_layer_norm = nn.LayerNorm(self.embed_dim)
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def forward(
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self,
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hidden_states: torch.Tensor,
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cu_seqlens: torch.Tensor,
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**kwargs,
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) -> torch.Tensor:
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"""
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Args:
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hidden_states (`torch.FloatTensor`): input to the layer of shape `(batch, seq_len, embed_dim)`
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layer_head_mask (`torch.FloatTensor`): mask for attention heads in a given layer of size
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`(encoder_attention_heads,)`.
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output_attentions (`bool`, *optional*):
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Whether or not to return the attentions tensors of all attention layers. See `attentions` under
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returned tensors for more detail.
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"""
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residual = hidden_states
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hidden_states = self.self_attn_layer_norm(hidden_states)
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hidden_states = self.self_attn(
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x=hidden_states,
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cu_seqlens=cu_seqlens,
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)
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hidden_states = residual + hidden_states
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residual = hidden_states
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hidden_states = self.final_layer_norm(hidden_states)
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hidden_states, _ = self.fc1(hidden_states)
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hidden_states = self.activation_fn(hidden_states)
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hidden_states, _ = self.fc2(hidden_states)
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hidden_states = residual + hidden_states
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if hidden_states.dtype == torch.float16:
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clamp_value = torch.finfo(hidden_states.dtype).max - 1000
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hidden_states = torch.clamp(
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hidden_states, min=-clamp_value, max=clamp_value
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)
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outputs = (hidden_states,)
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return outputs
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class SinusoidsPositionEmbedding(nn.Module):
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def __init__(self, length, channels, max_timescale=10000):
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super().__init__()
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if channels % 2 != 0:
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raise ValueError("SinusoidsPositionEmbedding needs even channels input")
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log_timescale_increment = np.log(max_timescale) / (channels // 2 - 1)
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inv_timescales = torch.exp(
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-log_timescale_increment * torch.arange(channels // 2).float()
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)
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scaled_time = (
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torch.arange(length)[:, np.newaxis] * inv_timescales[np.newaxis, :]
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)
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self.register_buffer(
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"positional_embedding",
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torch.cat([torch.sin(scaled_time), torch.cos(scaled_time)], dim=1),
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persistent=False,
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)
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def forward(self, seqlen: int):
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return self.positional_embedding[:seqlen, :]
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def _get_feat_extract_output_lengths(input_lengths):
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"""
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Computes the output length of the convolutional layers and the output length of the audio encoder
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"""
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input_lengths_leave = input_lengths % 100
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feat_lengths = (input_lengths_leave - 1) // 2 + 1
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output_lengths = (
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((feat_lengths - 1) // 2 + 1 - 1) // 2 + 1 + (input_lengths // 100) * 13
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)
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return output_lengths
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class Qwen3OmniMoeAudioEncoder(PreTrainedModel):
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config: Qwen3OmniMoeAudioEncoderConfig
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def __init__(self, config: Qwen3OmniMoeAudioEncoderConfig, quant_config=None):
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super().__init__(config)
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self.dropout = config.dropout
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embed_dim = config.d_model
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self.num_mel_bins = config.num_mel_bins
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self.max_source_positions = config.max_source_positions
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self.embed_scale = math.sqrt(embed_dim) if config.scale_embedding else 1.0
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self.n_window = config.n_window
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self.positional_embedding = SinusoidsPositionEmbedding(
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self.max_source_positions, embed_dim
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)
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self.layers = nn.ModuleList(
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[
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Qwen3OmniMoeAudioEncoderLayer(config)
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for _ in range(config.encoder_layers)
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]
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)
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self.ln_post = nn.LayerNorm(config.d_model)
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self.gradient_checkpointing = False
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self.conv2d1 = nn.Conv2d(1, config.downsample_hidden_size, 3, 2, padding=1)
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self.conv2d2 = nn.Conv2d(
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config.downsample_hidden_size,
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config.downsample_hidden_size,
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3,
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2,
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padding=1,
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)
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self.conv2d3 = nn.Conv2d(
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config.downsample_hidden_size,
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config.downsample_hidden_size,
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3,
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2,
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padding=1,
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)
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conv_out_dim = config.downsample_hidden_size * (
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(((config.num_mel_bins + 1) // 2 + 1) // 2 + 1) // 2
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)
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self.conv_out = ReplicatedLinear(
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conv_out_dim,
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config.d_model,
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bias=False,
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quant_config=quant_config,
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)
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self.proj1 = ReplicatedLinear(
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config.d_model, config.d_model, quant_config=quant_config
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)
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self.act = ACT2FN[config.activation_function]
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self.proj2 = ReplicatedLinear(
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config.d_model, config.output_dim, quant_config=quant_config
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)
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self.n_window_infer = self.config.n_window_infer
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self.conv_chunksize = self.config.conv_chunksize
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def _freeze_parameters(self):
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for param in self.parameters():
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param.requires_grad = False
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self._requires_grad = False
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def get_input_embeddings(self) -> nn.Module:
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return self.conv1
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def set_input_embeddings(self, value: nn.Module):
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self.conv1 = value
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def forward(
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self,
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input_features,
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feature_lens=None,
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aftercnn_lens=None,
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):
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r"""
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feature_lens (`torch.LongTensor` of shape `(batch_size,)`):
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mel length
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aftercnn_lens (`torch.LongTensor` of shape `(batch_size,)`):
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mel length after cnn
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"""
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aftercnn_lens = _get_feat_extract_output_lengths(feature_lens)
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chunk_num = torch.ceil(feature_lens / (self.n_window * 2)).long()
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chunk_lengths = torch.tensor(
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[self.n_window * 2] * chunk_num.sum(),
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dtype=torch.long,
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device=feature_lens.device,
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)
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tail_chunk_index = F.pad(chunk_num, (1, 0), value=-1).cumsum(0)[1:]
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chunk_lengths[tail_chunk_index] = feature_lens % (self.n_window * 2)
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chunk_lengths[chunk_lengths == 0] = self.n_window * 2
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chunk_list = input_features.T.split(chunk_lengths.tolist(), dim=0)
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padded_feature = nn.utils.rnn.pad_sequence(
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chunk_list, batch_first=True
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).transpose(1, 2)
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# Introduce vectorized mask to avoid many small tensors
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feature_lens_after_cnn = _get_feat_extract_output_lengths(chunk_lengths)
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max_len_after_cnn = (
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int(feature_lens_after_cnn.max().item())
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if feature_lens_after_cnn.numel()
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else 0
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)
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idx = torch.arange(max_len_after_cnn, device=padded_feature.device)
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padded_mask_after_cnn = idx.unsqueeze(0) < feature_lens_after_cnn.unsqueeze(1)
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padded_feature = padded_feature.unsqueeze(1)
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# Add fast path + chunk normal path
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if padded_feature.size(0) <= self.conv_chunksize:
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padded_embed = F.gelu(self.conv2d1(padded_feature))
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padded_embed = F.gelu(self.conv2d2(padded_embed))
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padded_embed = F.gelu(self.conv2d3(padded_embed))
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else:
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padded_embeds = []
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for chunk in padded_feature.split(self.conv_chunksize, dim=0):
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x = F.gelu(self.conv2d1(chunk))
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x = F.gelu(self.conv2d2(x))
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x = F.gelu(self.conv2d3(x))
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padded_embeds.append(x)
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padded_embed = torch.cat(padded_embeds, dim=0)
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b, c, f, t = padded_embed.size()
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padded_embed = self.conv_out(
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padded_embed.permute(0, 3, 1, 2).contiguous().view(b, t, c * f)
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)[0]
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positional_embedding = (
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self.positional_embedding.positional_embedding[: padded_embed.shape[1], :]
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.unsqueeze(0)
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.to(padded_embed.dtype)
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)
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padded_embed = padded_embed + positional_embedding
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hidden_states = padded_embed[padded_mask_after_cnn]
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cu_chunk_lens = [0]
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window_aftercnn = padded_mask_after_cnn.shape[-1] * (
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self.n_window_infer // (self.n_window * 2)
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)
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# Use tolist() for efficient batch conversion from tensor to Python
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for cnn_len in aftercnn_lens.tolist():
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num_full_chunks = cnn_len // window_aftercnn
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remainder = cnn_len % window_aftercnn
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cu_chunk_lens.extend([window_aftercnn] * num_full_chunks)
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if remainder:
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cu_chunk_lens.append(remainder)
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cu_seqlens = torch.tensor(cu_chunk_lens, device=aftercnn_lens.device).cumsum(
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-1, dtype=torch.int32
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)
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# cu_seqlens must be on cpu because of npu_flash_attention_unpad operator restriction
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if is_npu():
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cu_seqlens = cu_seqlens.to("cpu")
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for encoder_layer in self.layers:
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layer_outputs = encoder_layer(
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hidden_states,
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cu_seqlens,
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)
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|
|
hidden_states = layer_outputs[0]
|
|
|
|
hidden_states = self.ln_post(hidden_states)
|
|
hidden_states = self.proj1(hidden_states)[0]
|
|
hidden_states = self.act(hidden_states)
|
|
hidden_states = self.proj2(hidden_states)[0]
|
|
return BaseModelOutput(last_hidden_state=hidden_states)
|
|
|
|
# Ignore copy
|
|
def _get_feat_extract_output_lengths(self, input_lengths: torch.LongTensor):
|
|
"""
|
|
Computes the output length of the convolutional layers and the output length of the audio encoder
|
|
"""
|
|
input_lengths = (input_lengths - 1) // 2 + 1
|
|
output_lengths = (input_lengths - 2) // 2 + 1
|
|
return input_lengths, output_lengths
|
|
|
|
|
|
class Qwen3OmniMoeVisionPatchMerger(nn.Module):
|
|
|
|
def __init__(
|
|
self,
|
|
dim: int,
|
|
context_dim: int,
|
|
spatial_merge_size: int = 2,
|
|
quant_config: Optional[QuantizationConfig] = None,
|
|
prefix: str = "",
|
|
use_postshuffle_norm=False,
|
|
) -> None:
|
|
super().__init__()
|
|
self.hidden_size = context_dim * (spatial_merge_size**2)
|
|
self.use_postshuffle_norm = use_postshuffle_norm
|
|
self.ln_q = nn.LayerNorm(
|
|
self.hidden_size if use_postshuffle_norm else context_dim, eps=1e-6
|
|
)
|
|
self.mlp = nn.ModuleList(
|
|
[
|
|
ColumnParallelLinear(
|
|
self.hidden_size,
|
|
self.hidden_size,
|
|
bias=True,
|
|
quant_config=quant_config,
|
|
prefix=add_prefix("mlp.0", prefix),
|
|
),
|
|
nn.GELU(),
|
|
RowParallelLinear(
|
|
self.hidden_size,
|
|
dim,
|
|
bias=True,
|
|
quant_config=quant_config,
|
|
prefix=add_prefix("mlp.2", prefix),
|
|
),
|
|
]
|
|
)
|
|
|
|
def forward(self, x: torch.Tensor) -> torch.Tensor:
|
|
x = (
|
|
x.view(-1, self.hidden_size)
|
|
if self.use_postshuffle_norm
|
|
else x.view(-1, x.shape[-1])
|
|
)
|
|
hidden = self.ln_q(x).view(-1, self.hidden_size)
|
|
for layer in self.mlp:
|
|
if isinstance(hidden, tuple):
|
|
hidden = hidden[0]
|
|
hidden = layer(hidden)
|
|
|
|
if isinstance(hidden, tuple):
|
|
hidden = hidden[0]
|
|
|
|
return hidden
|
|
|
|
|
|
class Qwen3OmniMoeVisionEncoder(Qwen3VLMoeVisionModel):
|
|
config: Qwen3OmniMoeVisionEncoderConfig
|
|
|
|
def __init__(
|
|
self,
|
|
config: Qwen3OmniMoeVisionEncoderConfig,
|
|
quant_config: Optional[QuantizationConfig] = None,
|
|
prefix: str = None,
|
|
**kwargs,
|
|
):
|
|
super().__init__(
|
|
vision_config=config,
|
|
quant_config=quant_config,
|
|
norm_eps=getattr(config, "rms_norm_eps", 1e-6),
|
|
)
|
|
|
|
self.merger = Qwen3OmniMoeVisionPatchMerger(
|
|
dim=config.out_hidden_size,
|
|
context_dim=config.hidden_size,
|
|
spatial_merge_size=config.spatial_merge_size,
|
|
quant_config=quant_config,
|
|
use_postshuffle_norm=False,
|
|
prefix=add_prefix("merger", prefix),
|
|
)
|
|
self.merger_list = nn.ModuleList(
|
|
[
|
|
Qwen3OmniMoeVisionPatchMerger(
|
|
dim=config.out_hidden_size,
|
|
context_dim=config.hidden_size,
|
|
spatial_merge_size=config.spatial_merge_size,
|
|
use_postshuffle_norm=True,
|
|
quant_config=quant_config,
|
|
prefix=add_prefix("merger_list", prefix),
|
|
)
|
|
for _ in range(len(config.deepstack_visual_indexes))
|
|
]
|
|
)
|
|
del self.deepstack_merger_list
|
|
|
|
@property
|
|
def deepstack_merger_list(self):
|
|
return self.merger_list
|
|
|
|
@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
|
|
|
|
|
|
class Qwen3OmniMoeThinkerForConditionalGeneration(Qwen3VLMoeForConditionalGeneration):
|
|
config: Qwen3OmniMoeThinkerConfig
|
|
|
|
def __init__(
|
|
self,
|
|
config: Qwen3OmniMoeThinkerConfig,
|
|
quant_config: Optional[QuantizationConfig] = None,
|
|
prefix: str = "",
|
|
):
|
|
super().__init__(
|
|
config, quant_config, prefix, language_model_cls=Qwen3MoeLLMModel
|
|
)
|
|
self.audio_tower = Qwen3OmniMoeAudioEncoder(config.audio_config, quant_config)
|
|
self.visual = Qwen3OmniMoeVisionEncoder(
|
|
config.vision_config,
|
|
quant_config=quant_config,
|
|
norm_eps=getattr(config, "rms_norm_eps", 1e-6),
|
|
prefix=add_prefix("visual", prefix),
|
|
)
|
|
self.pad_token_id = (
|
|
self.config.pad_token_id if self.config.pad_token_id is not None else -1
|
|
)
|
|
|
|
def get_audio_feature(self, items: List[MultimodalDataItem]):
|
|
device = next(self.audio_tower.parameters()).device
|
|
feature_attention_mask = (
|
|
torch.cat([item.feature_attention_mask for item in items], dim=0)
|
|
.type(torch.long)
|
|
.to(device)
|
|
)
|
|
input_features = (
|
|
torch.cat([item.feature for item in items])
|
|
.type(self.audio_tower.dtype)
|
|
.to(next(self.audio_tower.parameters()).device)
|
|
)
|
|
if feature_attention_mask is not None:
|
|
audio_feature_lengths = torch.sum(feature_attention_mask, dim=1)
|
|
input_features = input_features.permute(0, 2, 1)[
|
|
feature_attention_mask.bool()
|
|
].permute(1, 0)
|
|
else:
|
|
audio_feature_lengths = None
|
|
|
|
feature_lens = (
|
|
audio_feature_lengths
|
|
if audio_feature_lengths is not None
|
|
else feature_attention_mask.sum(-1)
|
|
)
|
|
audio_outputs = self.audio_tower(
|
|
input_features,
|
|
feature_lens=feature_lens,
|
|
)
|
|
audio_features = audio_outputs.last_hidden_state
|
|
|
|
return audio_features
|
|
|
|
|
|
class Qwen3OmniMoeForConditionalGeneration(PreTrainedModel):
|
|
def __init__(
|
|
self,
|
|
config: Qwen3VLMoeConfig,
|
|
quant_config: Optional[QuantizationConfig] = None,
|
|
prefix: str = "",
|
|
):
|
|
super().__init__(config)
|
|
self.config = config
|
|
|
|
self.thinker = Qwen3OmniMoeThinkerForConditionalGeneration(
|
|
config.thinker_config, quant_config=quant_config, prefix=prefix
|
|
)
|
|
self.enable_talker = False
|
|
self.pad_input_ids = self.thinker.pad_input_ids
|
|
self.forward = self.thinker.forward
|
|
|
|
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),
|
|
]
|
|
|
|
expert_params_mapping = FusedMoE.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.num_experts,
|
|
)
|
|
|
|
# Skip loading extra parameters for GPTQ/modelopt models.
|
|
ignore_suffixes = (
|
|
".bias",
|
|
"_bias",
|
|
".k_scale",
|
|
"_k_scale",
|
|
".v_scale",
|
|
"_v_scale",
|
|
".weight_scale",
|
|
"_weight_scale",
|
|
".input_scale",
|
|
"_input_scale",
|
|
)
|
|
|
|
is_fused_expert = False
|
|
fused_expert_params_mapping = [
|
|
("experts.w13_weight", "experts.gate_up_proj", 0, "w1"),
|
|
("experts.w2_weight", "experts.down_proj", 0, "w2"),
|
|
]
|
|
|
|
num_experts = self.config.num_experts
|
|
|
|
# Pre-define `params_dict` to avoid repeated expensive traversal of model parameters.
|
|
params_dict = dict(self.named_parameters())
|
|
|
|
for name, loaded_weight in weights:
|
|
name = name.replace(r"model.language_model.", r"model.")
|
|
|
|
if ("talker" in name or "code2wav" in name) and not self.enable_talker:
|
|
continue
|
|
|
|
name = name.replace(".self_attn.out_proj", ".self_attn.proj")
|
|
|
|
for param_name, weight_name, shard_id in stacked_params_mapping:
|
|
if "experts.gate_up_proj" in name or "experts.down_proj" in name:
|
|
is_fused_expert = True
|
|
expert_params_mapping = fused_expert_params_mapping
|
|
|
|
# Skip non-stacked layers and experts (experts handled below).
|
|
if weight_name not in name:
|
|
continue
|
|
if "visual" 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:
|
|
continue
|
|
name = name.replace(weight_name, param_name)
|
|
# Skip loading extra parameters for GPTQ/modelopt models.
|
|
if name.endswith(ignore_suffixes) and name not in params_dict:
|
|
continue
|
|
# [TODO] Skip layers that are on other devices (check if sglang has a similar function)
|
|
# if is_pp_missing_parameter(name, self):
|
|
# continue
|
|
|
|
if name not in params_dict:
|
|
continue
|
|
|
|
param = params_dict[name]
|
|
weight_loader = param.weight_loader
|
|
weight_loader(param, loaded_weight, shard_id)
|
|
break
|
|
else:
|
|
# Track if this is an expert weight to enable early skipping
|
|
is_expert_weight = False
|
|
|
|
for mapping in expert_params_mapping:
|
|
param_name, weight_name, expert_id, shard_id = mapping
|
|
if weight_name not in name:
|
|
continue
|
|
if "visual" in name or "audio_tower" in name:
|
|
continue
|
|
# Anyway, this is an expert weight and should not be
|
|
# attempted to load as other weights later
|
|
is_expert_weight = True
|
|
name_mapped = name.replace(weight_name, param_name)
|
|
if is_fused_expert:
|
|
loaded_weight = loaded_weight.transpose(-1, -2) # no bias
|
|
if "experts.gate_up_proj" in name:
|
|
loaded_weight = loaded_weight.chunk(2, dim=-2)
|
|
load_fused_expert_weights(
|
|
name_mapped,
|
|
params_dict,
|
|
loaded_weight[0],
|
|
"w1",
|
|
num_experts,
|
|
)
|
|
load_fused_expert_weights(
|
|
name_mapped,
|
|
params_dict,
|
|
loaded_weight[1],
|
|
"w3",
|
|
num_experts,
|
|
)
|
|
else:
|
|
load_fused_expert_weights(
|
|
name_mapped,
|
|
params_dict,
|
|
loaded_weight,
|
|
shard_id,
|
|
num_experts,
|
|
)
|
|
else:
|
|
# Skip loading extra parameters for GPTQ/modelopt models.
|
|
if (
|
|
name_mapped.endswith(ignore_suffixes)
|
|
and name_mapped not in params_dict
|
|
):
|
|
continue
|
|
if name_mapped in params_dict.keys():
|
|
param = params_dict[name_mapped]
|
|
else:
|
|
continue
|
|
# We should ask the weight loader to return success or
|
|
# not here since otherwise we may skip experts with
|
|
# # other available replicas.
|
|
weight_loader = param.weight_loader
|
|
weight_loader(
|
|
param,
|
|
loaded_weight,
|
|
name_mapped,
|
|
shard_id=shard_id,
|
|
expert_id=expert_id,
|
|
)
|
|
name = name_mapped
|
|
break
|
|
else:
|
|
if is_expert_weight:
|
|
# This is an expert weight but not mapped to this rank, skip all remaining processing
|
|
continue
|
|
if "visual" in name or "audio_tower" in name:
|
|
# adapt to VisionAttention
|
|
name = name.replace(r"attn.qkv.", r"attn.qkv_proj.")
|
|
name = name.replace(r"model.visual.", r"visual.")
|
|
name = name.replace(r"attn.out_proj.", r"attn.proj.")
|
|
|
|
# Skip loading extra parameters for GPTQ/modelopt models.
|
|
if name.endswith(ignore_suffixes) and name not in params_dict:
|
|
continue
|
|
|
|
if name in params_dict.keys():
|
|
param = params_dict[name]
|
|
weight_loader = getattr(
|
|
param, "weight_loader", default_weight_loader
|
|
)
|
|
weight_loader(param, loaded_weight)
|
|
else:
|
|
logger.warning(
|
|
f"Loaded weight with {name=} not found in params_dict"
|
|
)
|
|
|
|
|
|
EntryClass = Qwen3OmniMoeForConditionalGeneration
|