<!-- Thanks for sending a pull request! BEFORE SUBMITTING, PLEASE READ https://docs.vllm.ai/en/latest/contributing/overview.html --> ### What this PR does / why we need it? 1. This PR introduces native `all_to_all` communication operator to fix `allgather` bugs when dp_size > 1. Besides, it adds a naive implementation of force-load-balance when doing profile runs. 2. The operator `npu_dequant_swiglu_quant` only supports input hidden_states with dtype `torch.int32`. This tensor occupies space of `global_bs * seq_len * topk * hidden_size`, which might be very large as `ep_size` grows. Therefore we need to disable this operator and use original `swiglu` && `quantize`. ### Does this PR introduce _any_ user-facing change? No. ### How was this patch tested? By performing offline inference:  --------- Signed-off-by: angazenn <zengyanjia@huawei.com> Co-authored-by: angazenn <zengyanjia@huawei.com>
687 lines
28 KiB
Python
687 lines
28 KiB
Python
# SPDX-License-Identifier: Apache-2.0
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# Copyright (c) 2025 Huawei Technologies Co., Ltd. All Rights Reserved.
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# Copyright 2023 The vLLM team.
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# Copyright 2023 DeepSeek-AI and the HuggingFace Inc. team. All rights reserved.
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#
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# This code is based on EleutherAI's GPT-NeoX library and the GPT-NeoX
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# and OPT implementations in this library. It has been modified from its
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# original forms to accommodate minor architectural differences compared
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# to GPT-NeoX and OPT used by the Meta AI team that trained the model.
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#
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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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# # Adapted from
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# # vllm-project/vllm/blob/main/vllm/model_executor/models/deepseek_v2.py
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# # https://github.com/huggingface/transformers/blob/v4.28.0/src/transformers/models/llama/modeling_llama.py
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# # vllm-project/vllm/vllm/model_executor/models/deepseek_v2.py
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# """Inference-only DeepseekV2/DeepseekV3 model."""
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from typing import Any, Dict, List, Optional, Union
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import torch
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import torch.distributed as dist
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import torch_npu
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import vllm.envs as envs
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from torch import nn
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from transformers import PretrainedConfig
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from vllm.attention import Attention, AttentionMetadata
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from vllm.config import (CacheConfig, ModelConfig, VllmConfig,
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get_current_vllm_config)
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from vllm.distributed import (get_dp_group, get_pp_group,
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get_tensor_model_parallel_world_size,
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get_tp_group, tensor_model_parallel_all_reduce)
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from vllm.forward_context import get_forward_context
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from vllm.model_executor.layers.activation import SiluAndMul
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from vllm.model_executor.layers.layernorm import RMSNorm
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from vllm.model_executor.layers.linear import (ColumnParallelLinear,
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MergedColumnParallelLinear,
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ReplicatedLinear,
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RowParallelLinear,
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UnquantizedLinearMethod)
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from vllm.model_executor.layers.logits_processor import LogitsProcessor
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from vllm.model_executor.layers.quantization import QuantizationConfig
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from vllm.model_executor.layers.rotary_embedding import get_rope
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from vllm.model_executor.layers.sampler import get_sampler
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from vllm.model_executor.layers.vocab_parallel_embedding import (
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ParallelLMHead, VocabParallelEmbedding)
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from vllm.model_executor.models.deepseek_v2 import \
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DeepseekV2ForCausalLM # ruff: noqa: E501
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from vllm.model_executor.models.deepseek_v2 import \
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yarn_get_mscale # ruff: noqa: E501
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from vllm.model_executor.models.deepseek_v2 import (DeepseekV2Attention,
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DeepseekV2DecoderLayer,
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DeepseekV2MLAAttention)
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from vllm.model_executor.models.utils import (
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PPMissingLayer, make_empty_intermediate_tensors_factory, make_layers,
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maybe_prefix)
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from vllm.sequence import IntermediateTensors
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import vllm_ascend.envs as envs_ascend
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from vllm_ascend.ops.fused_moe import AscendFusedMoE
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from vllm_ascend.quantization.w8a8_dynamic import AscendW8A8DynamicLinearMethod
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VLLM_ENABLE_MC2: bool = envs_ascend.VLLM_ENABLE_MC2
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class CustomDeepseekV2MLP(nn.Module):
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def __init__(
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self,
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hidden_size: int,
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intermediate_size: int,
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hidden_act: str,
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quant_config: Optional[QuantizationConfig] = None,
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reduce_results: bool = True,
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prefix: str = "",
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) -> None:
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super().__init__()
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self.gate_up_proj = MergedColumnParallelLinear(
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hidden_size, [intermediate_size] * 2,
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bias=False,
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quant_config=quant_config,
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prefix=f"{prefix}.gate_up_proj")
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self.down_proj = RowParallelLinear(intermediate_size,
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hidden_size,
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bias=False,
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quant_config=quant_config,
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reduce_results=reduce_results,
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prefix=f"{prefix}.down_proj")
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if hidden_act != "silu":
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raise ValueError(f"Unsupported activation: {hidden_act}. "
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"Only silu is supported for now.")
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self.act_fn = SiluAndMul()
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# NOTE: `torch_npu.npu_dequant_swiglu_quant` can only be enabled in dynamic quant
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self.is_dynamic_quant = not isinstance(
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self.gate_up_proj.quant_method,
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UnquantizedLinearMethod) and isinstance(
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self.gate_up_proj.quant_method.quant_method,
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AscendW8A8DynamicLinearMethod)
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def forward(self, x):
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if self.is_dynamic_quant:
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x, dynamic_scale = torch_npu.npu_dynamic_quant(x)
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x = torch_npu.npu_quant_matmul(
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x,
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self.gate_up_proj.weight,
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self.gate_up_proj.weight_scale,
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output_dtype=torch.int32,
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)
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x, dynamic_scale = torch_npu.npu_dequant_swiglu_quant(
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x=x,
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weight_scale=self.gate_up_proj.weight_scale_fp32,
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activation_scale=dynamic_scale,
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bias=None,
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quant_scale=None,
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quant_offset=None,
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group_index=None,
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activate_left=True,
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quant_mode=1)
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x = torch_npu.npu_quant_matmul(
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x,
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self.down_proj.weight,
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self.down_proj.weight_scale,
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pertoken_scale=dynamic_scale,
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output_dtype=torch.bfloat16,
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)
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if self.down_proj.reduce_results and self.down_proj.tp_size > 1:
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x = tensor_model_parallel_all_reduce(x)
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return x
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gate_up, _ = self.gate_up_proj(x)
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x = self.act_fn(gate_up)
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x, _ = self.down_proj(x)
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return x
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class CustomDeepseekV2MoE(nn.Module):
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top_k: int
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def __init__(
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self,
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config: PretrainedConfig,
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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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self.tp_size = get_tensor_model_parallel_world_size()
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self.routed_scaling_factor = config.routed_scaling_factor
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self.n_shared_experts = config.n_shared_experts
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self.routed_scaling_factor = config.routed_scaling_factor
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if self.tp_size > config.n_routed_experts:
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raise ValueError(
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f"Tensor parallel size {self.tp_size} is greater than "
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f"the number of experts {config.n_routed_experts}.")
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if config.hidden_act != "silu":
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raise ValueError(f"Unsupported activation: {config.hidden_act}. "
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"Only silu is supported for now.")
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self.gate = ReplicatedLinear(config.hidden_size,
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config.n_routed_experts,
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bias=False,
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quant_config=None,
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prefix=f"{prefix}.gate")
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if config.topk_method == "noaux_tc":
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self.gate.e_score_correction_bias = nn.Parameter(
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torch.empty(config.n_routed_experts))
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else:
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self.gate.e_score_correction_bias = None
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self.experts = AscendFusedMoE(
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num_experts=config.n_routed_experts,
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top_k=config.num_experts_per_tok,
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hidden_size=config.hidden_size,
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intermediate_size=config.moe_intermediate_size,
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reduce_results=False,
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renormalize=config.norm_topk_prob,
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quant_config=quant_config,
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use_grouped_topk=True,
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num_expert_group=config.n_group,
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topk_group=config.topk_group,
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prefix=f"{prefix}.experts",
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scoring_func=config.scoring_func,
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e_score_correction_bias=self.gate.e_score_correction_bias)
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if config.n_shared_experts is not None:
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intermediate_size = (config.moe_intermediate_size *
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config.n_shared_experts)
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self.shared_experts = CustomDeepseekV2MLP(
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hidden_size=config.hidden_size,
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intermediate_size=intermediate_size,
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hidden_act=config.hidden_act,
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quant_config=quant_config,
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reduce_results=True,
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prefix=f"{prefix}.shared_experts",
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)
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CustomDeepseekV2MoE.top_k = config.num_experts_per_tok
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self.dp_size = get_dp_group().world_size
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self.tp_group = get_tp_group().device_group
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self.tp_rank = get_tp_group().rank_in_group
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def forward(self, hidden_states: torch.Tensor) -> torch.Tensor:
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attn_metadata = get_forward_context().attn_metadata
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# when profile runs, force experts to load balanced tokens
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# to avoid high memory consumption on a single rank.
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# TODO: need a better flag to indicate whether in profile run or not.
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if attn_metadata is None:
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# for profile run
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is_prefill = True
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enable_force_load_balance = True
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else:
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is_prefill = attn_metadata.num_prefills > 0
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enable_force_load_balance = False
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num_tokens, hidden_dim = hidden_states.shape
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if self.n_shared_experts is not None:
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shared_output = self.shared_experts(hidden_states)
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if self.tp_size > 1:
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# pass
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num_tokens, hidden_size = hidden_states.shape
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if num_tokens < self.tp_size:
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target_size = self.tp_size
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new_hidden_states = torch.empty([target_size, hidden_size],
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dtype=hidden_states.dtype,
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device=hidden_states.device)
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new_hidden_states[:num_tokens] = hidden_states
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hidden_states = new_hidden_states
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chunk_hidden_states = torch.tensor_split(hidden_states,
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self.tp_size,
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dim=0)
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local_hidden_states = chunk_hidden_states[self.tp_rank]
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else:
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local_hidden_states = hidden_states
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# router_logits: (num_tokens, n_experts)
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router_logits, _ = self.gate(local_hidden_states)
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router_hidden_states = self.experts(
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hidden_states=local_hidden_states,
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router_logits=router_logits,
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is_prefill=is_prefill,
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top_k=CustomDeepseekV2MoE.top_k,
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enable_force_load_balance=enable_force_load_balance,
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) * self.routed_scaling_factor
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if self.tp_size > 1:
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dist.all_gather(list(chunk_hidden_states), router_hidden_states,
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self.tp_group)
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final_hidden_states = torch.cat(chunk_hidden_states, dim=0)
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if num_tokens < self.tp_size:
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final_hidden_states = final_hidden_states[:num_tokens]
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else:
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final_hidden_states = router_hidden_states
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if shared_output is not None:
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final_hidden_states = final_hidden_states + shared_output
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return final_hidden_states.view(num_tokens, hidden_dim)
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class CustomDeepseekV2MLAAttention(DeepseekV2MLAAttention):
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def __init__(
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self,
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config: PretrainedConfig,
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hidden_size: int,
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num_heads: int,
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qk_nope_head_dim: int,
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qk_rope_head_dim: int,
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v_head_dim: int,
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q_lora_rank: Optional[int],
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kv_lora_rank: int,
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rope_theta: float = 10000,
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rope_scaling: Optional[Dict[str, Any]] = None,
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max_position_embeddings: int = 8192,
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cache_config: Optional[CacheConfig] = None,
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quant_config: Optional[QuantizationConfig] = None,
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prefix: str = "",
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) -> None:
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nn.Module.__init__(self)
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self.hidden_size = hidden_size
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self.qk_nope_head_dim = qk_nope_head_dim
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self.qk_rope_head_dim = qk_rope_head_dim
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self.qk_head_dim = qk_nope_head_dim + qk_rope_head_dim
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self.v_head_dim = v_head_dim
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self.q_lora_rank = q_lora_rank
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self.kv_lora_rank = kv_lora_rank
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self.num_heads = num_heads
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tp_size = get_tensor_model_parallel_world_size()
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assert num_heads % tp_size == 0
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self.num_local_heads = num_heads // tp_size
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self.scaling = self.qk_head_dim**-0.5
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self.rope_theta = rope_theta
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self.max_position_embeddings = max_position_embeddings
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if self.q_lora_rank is not None:
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self.q_a_proj = ReplicatedLinear(self.hidden_size,
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self.q_lora_rank,
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bias=False,
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quant_config=quant_config,
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prefix=f"{prefix}.q_a_proj")
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self.q_a_layernorm = RMSNorm(self.q_lora_rank,
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eps=config.rms_norm_eps)
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self.q_b_proj = ColumnParallelLinear(q_lora_rank,
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self.num_heads *
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self.qk_head_dim,
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bias=False,
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quant_config=quant_config,
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prefix=f"{prefix}.q_b_proj")
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else:
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self.q_proj = ColumnParallelLinear(self.hidden_size,
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self.num_heads *
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self.qk_head_dim,
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bias=False,
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quant_config=quant_config,
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prefix=f"{prefix}.q_proj")
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self.kv_a_proj_with_mqa = ReplicatedLinear(
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self.hidden_size,
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self.kv_lora_rank + self.qk_rope_head_dim,
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bias=False,
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quant_config=quant_config,
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prefix=f"{prefix}.kv_a_proj_with_mqa")
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self.kv_a_layernorm = RMSNorm(self.kv_lora_rank,
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eps=config.rms_norm_eps)
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self.kv_b_proj = ColumnParallelLinear(
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self.kv_lora_rank,
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self.num_heads * (self.qk_nope_head_dim + self.v_head_dim),
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bias=False,
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quant_config=quant_config,
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prefix=f"{prefix}.kv_b_proj")
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self.o_proj = RowParallelLinear(self.num_heads * self.v_head_dim,
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self.hidden_size,
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bias=False,
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quant_config=quant_config,
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prefix=f"{prefix}.o_proj")
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if rope_scaling:
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rope_scaling["rope_type"] = 'deepseek_yarn'
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self.rotary_emb = get_rope(qk_rope_head_dim,
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rotary_dim=qk_rope_head_dim,
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max_position=max_position_embeddings,
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base=rope_theta,
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rope_scaling=rope_scaling,
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is_neox_style=False)
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if rope_scaling:
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mscale_all_dim = rope_scaling.get("mscale_all_dim", False)
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scaling_factor = rope_scaling["factor"]
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mscale = yarn_get_mscale(scaling_factor, float(mscale_all_dim))
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self.scaling = self.scaling * mscale * mscale
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# In the MLA backend, kv_cache includes both k_c and
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# pe (i.e. decoupled position embeddings). In particular,
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# the concat_and_cache_mla op requires
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# k_c.size(1) + k_pe.size(1) == kv_cache.size(2)
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# i.e.
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# kv_lora_rank + qk_rope_head_dim == head_size
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self.mla_attn = Attention(
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num_heads=self.num_local_heads,
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head_size=self.kv_lora_rank + self.qk_rope_head_dim,
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scale=self.scaling,
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num_kv_heads=1,
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cache_config=cache_config,
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quant_config=quant_config,
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prefix=f"{prefix}.attn",
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use_mla=True,
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# MLA Args
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q_lora_rank=self.q_lora_rank,
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kv_lora_rank=self.kv_lora_rank,
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qk_nope_head_dim=self.qk_nope_head_dim,
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qk_rope_head_dim=self.qk_rope_head_dim,
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qk_head_dim=self.qk_head_dim,
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v_head_dim=self.v_head_dim,
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rotary_emb=self.rotary_emb,
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q_proj=self.q_proj if self.q_lora_rank is None else self.q_b_proj,
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kv_a_proj_with_mqa=self.kv_a_proj_with_mqa,
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kv_a_layernorm=self.kv_a_layernorm,
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kv_b_proj=self.kv_b_proj,
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o_proj=self.o_proj,
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)
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self.prefix = prefix
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self.debug_layer_idx = int(self.prefix.split(".")[-2])
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self.enable_graph_mode = False
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additional_config = get_current_vllm_config().additional_config
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if additional_config:
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self.enable_graph_mode = additional_config.get(
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"enable_graph_mode", False)
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def forward(
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self,
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positions: torch.Tensor,
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hidden_states: torch.Tensor,
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kv_cache: Optional[torch.Tensor] = None,
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attn_metadata: Optional[AttentionMetadata] = None) -> torch.Tensor:
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if self.q_lora_rank is not None:
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ckq = self.q_a_proj(hidden_states)[0]
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hidden_states_or_q_c = self.q_a_layernorm(ckq)
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else:
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hidden_states_or_q_c = hidden_states
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if self.enable_graph_mode:
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forward_kwargs = {}
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if envs.VLLM_USE_V1:
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output_shape = hidden_states.shape
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output = torch.empty(output_shape,
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dtype=hidden_states_or_q_c.dtype,
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device=hidden_states_or_q_c.device)
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forward_kwargs['output'] = output
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output = self.mla_attn.impl.forward(self.mla_attn,
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hidden_states_or_q_c,
|
|
hidden_states, None, kv_cache,
|
|
attn_metadata,
|
|
**forward_kwargs)
|
|
if envs.VLLM_USE_V1:
|
|
output = output.view(-1, output_shape[-1])
|
|
return output
|
|
else:
|
|
kv_c, k_pe = self.kv_a_proj_with_mqa(hidden_states)[0].split(
|
|
[self.kv_lora_rank, self.qk_rope_head_dim], dim=-1)
|
|
kv_c_normed = self.kv_a_layernorm(kv_c.contiguous())
|
|
return self.mla_attn(hidden_states_or_q_c,
|
|
kv_c_normed,
|
|
k_pe,
|
|
output_shape=hidden_states.shape)
|
|
|
|
|
|
class CustomDeepseekV2DecoderLayer(DeepseekV2DecoderLayer):
|
|
|
|
def __init__(
|
|
self,
|
|
config: PretrainedConfig,
|
|
prefix: str,
|
|
model_config: ModelConfig,
|
|
cache_config: Optional[CacheConfig] = None,
|
|
quant_config: Optional[QuantizationConfig] = None,
|
|
) -> None:
|
|
nn.Module.__init__(self)
|
|
self.hidden_size = config.hidden_size
|
|
rope_theta = getattr(config, "rope_theta", 10000)
|
|
rope_scaling = getattr(config, "rope_scaling", None)
|
|
max_position_embeddings = getattr(config, "max_position_embeddings",
|
|
8192)
|
|
# DecoderLayers are created with `make_layers` which passes the prefix
|
|
# with the layer's index.
|
|
layer_idx = int(prefix.split(sep='.')[-1])
|
|
self.layer_idx = layer_idx
|
|
# TODO: enable mla in vllm-ascend
|
|
if model_config.use_mla:
|
|
attn_cls = CustomDeepseekV2MLAAttention
|
|
else:
|
|
attn_cls = DeepseekV2Attention
|
|
self.self_attn = attn_cls(
|
|
config=config,
|
|
hidden_size=self.hidden_size,
|
|
num_heads=config.num_attention_heads,
|
|
qk_nope_head_dim=config.qk_nope_head_dim,
|
|
qk_rope_head_dim=config.qk_rope_head_dim,
|
|
v_head_dim=config.v_head_dim,
|
|
q_lora_rank=config.q_lora_rank
|
|
if hasattr(config, "q_lora_rank") else None,
|
|
kv_lora_rank=config.kv_lora_rank,
|
|
rope_theta=rope_theta,
|
|
rope_scaling=rope_scaling,
|
|
max_position_embeddings=max_position_embeddings,
|
|
cache_config=cache_config,
|
|
quant_config=quant_config,
|
|
prefix=f"{prefix}.self_attn",
|
|
)
|
|
|
|
if (config.n_routed_experts is not None
|
|
and layer_idx >= config.first_k_dense_replace
|
|
and layer_idx % config.moe_layer_freq == 0):
|
|
self.mlp = CustomDeepseekV2MoE(
|
|
config=config,
|
|
quant_config=quant_config,
|
|
prefix=f"{prefix}.mlp",
|
|
)
|
|
else:
|
|
self.mlp = CustomDeepseekV2MLP(
|
|
hidden_size=config.hidden_size,
|
|
intermediate_size=config.intermediate_size,
|
|
hidden_act=config.hidden_act,
|
|
quant_config=quant_config,
|
|
prefix=f"{prefix}.mlp",
|
|
)
|
|
self.input_layernorm = RMSNorm(config.hidden_size,
|
|
eps=config.rms_norm_eps)
|
|
self.post_attention_layernorm = RMSNorm(config.hidden_size,
|
|
eps=config.rms_norm_eps)
|
|
self.routed_scaling_factor = config.routed_scaling_factor
|
|
|
|
def forward(
|
|
self,
|
|
positions: torch.Tensor,
|
|
hidden_states: torch.Tensor,
|
|
residual: Optional[torch.Tensor],
|
|
kv_cache: Optional[torch.Tensor] = None,
|
|
attn_metadata: Optional[AttentionMetadata] = None,
|
|
) -> torch.Tensor:
|
|
# Self Attention
|
|
if residual is None:
|
|
residual = hidden_states
|
|
hidden_states = self.input_layernorm(hidden_states)
|
|
else:
|
|
hidden_states, residual = self.input_layernorm(
|
|
hidden_states, residual)
|
|
hidden_states = self.self_attn(
|
|
positions=positions,
|
|
hidden_states=hidden_states,
|
|
kv_cache=kv_cache,
|
|
attn_metadata=attn_metadata,
|
|
)
|
|
|
|
if hidden_states.dtype == torch.float16:
|
|
# Fix FP16 overflow
|
|
# We scale both hidden_states and residual before
|
|
# rmsnorm, and rmsnorm result would not affect by scale.
|
|
hidden_states *= 1. / self.routed_scaling_factor
|
|
if self.layer_idx == 0:
|
|
# The residual is shared by all layers, we only scale it on
|
|
# first layer.
|
|
residual *= 1. / self.routed_scaling_factor
|
|
|
|
# Fully Connected
|
|
hidden_states, residual = self.post_attention_layernorm(
|
|
hidden_states, residual)
|
|
hidden_states = self.mlp(hidden_states)
|
|
|
|
if isinstance(
|
|
self.mlp,
|
|
CustomDeepseekV2MLP) and hidden_states.dtype == torch.float16:
|
|
# Fix FP16 overflow
|
|
# Scaling the DeepseekV2MLP output, it is the input of
|
|
# input_layernorm of next decoder layer.
|
|
# The scaling of DeepseekV2MOE output would be done in the forward
|
|
# of DeepseekV2MOE
|
|
hidden_states *= 1. / self.routed_scaling_factor
|
|
|
|
return hidden_states, residual
|
|
|
|
|
|
class CustomDeepseekV2Model(nn.Module):
|
|
|
|
fall_back_to_pt_during_load = False
|
|
|
|
def __init__(self, *, vllm_config: VllmConfig, prefix: str = ""):
|
|
super().__init__()
|
|
|
|
config = vllm_config.model_config.hf_config
|
|
model_config = vllm_config.model_config
|
|
cache_config = vllm_config.cache_config
|
|
quant_config = vllm_config.quant_config
|
|
|
|
self.padding_idx = config.pad_token_id
|
|
self.vocab_size = config.vocab_size
|
|
|
|
if get_pp_group().is_first_rank:
|
|
self.embed_tokens = VocabParallelEmbedding(
|
|
config.vocab_size,
|
|
config.hidden_size,
|
|
quant_config=quant_config,
|
|
prefix=f"{prefix}.embed_tokens")
|
|
else:
|
|
self.embed_tokens = PPMissingLayer()
|
|
|
|
self.start_layer, self.end_layer, self.layers = make_layers(
|
|
config.num_hidden_layers,
|
|
lambda prefix: CustomDeepseekV2DecoderLayer(
|
|
config,
|
|
prefix,
|
|
model_config=model_config,
|
|
cache_config=cache_config,
|
|
quant_config=quant_config,
|
|
),
|
|
prefix=f"{prefix}.layers")
|
|
|
|
if get_pp_group().is_last_rank:
|
|
self.norm = RMSNorm(config.hidden_size, eps=config.rms_norm_eps)
|
|
else:
|
|
self.norm = PPMissingLayer()
|
|
self.make_empty_intermediate_tensors = (
|
|
make_empty_intermediate_tensors_factory(
|
|
["hidden_states", "residual"], config.hidden_size))
|
|
|
|
def get_input_embeddings(self, input_ids: torch.Tensor) -> torch.Tensor:
|
|
return self.embed_tokens(input_ids)
|
|
|
|
def forward(
|
|
self,
|
|
input_ids: torch.Tensor,
|
|
positions: torch.Tensor,
|
|
kv_caches: Optional[List[torch.Tensor]] = None,
|
|
attn_metadata: Optional[AttentionMetadata] = None,
|
|
intermediate_tensors: Optional[IntermediateTensors] = None,
|
|
inputs_embeds: Optional[torch.Tensor] = None,
|
|
) -> Union[torch.Tensor, IntermediateTensors]:
|
|
if get_pp_group().is_first_rank:
|
|
if inputs_embeds is not None:
|
|
hidden_states = inputs_embeds
|
|
else:
|
|
hidden_states = self.get_input_embeddings(input_ids)
|
|
residual = None
|
|
else:
|
|
assert intermediate_tensors is not None
|
|
hidden_states = intermediate_tensors["hidden_states"]
|
|
residual = intermediate_tensors["residual"]
|
|
|
|
for i in range(self.start_layer, self.end_layer):
|
|
layer = self.layers[i]
|
|
hidden_states, residual = layer(
|
|
positions, hidden_states, residual,
|
|
kv_caches[i -
|
|
self.start_layer] if kv_caches is not None else None,
|
|
attn_metadata)
|
|
|
|
if not get_pp_group().is_last_rank:
|
|
return IntermediateTensors({
|
|
"hidden_states": hidden_states,
|
|
"residual": residual
|
|
})
|
|
|
|
hidden_states, _ = self.norm(hidden_states, residual)
|
|
return hidden_states
|
|
|
|
|
|
class CustomDeepseekV2ForCausalLM(DeepseekV2ForCausalLM):
|
|
# add `packed_modules_mapping` in `DeepseekV2ForCausalLM` to support weight merging
|
|
packed_modules_mapping = {
|
|
"gate_up_proj": ["gate_proj", "up_proj"],
|
|
"experts":
|
|
["experts.0.gate_proj", "experts.0.up_proj", "experts.0.down_proj"]
|
|
}
|
|
|
|
def __init__(self, *, vllm_config: VllmConfig, prefix: str = ""):
|
|
nn.Module.__init__(self)
|
|
config = vllm_config.model_config.hf_config
|
|
quant_config = vllm_config.quant_config
|
|
self.config = config
|
|
self.quant_config = quant_config
|
|
self.model = CustomDeepseekV2Model(vllm_config=vllm_config,
|
|
prefix=maybe_prefix(
|
|
prefix, "model"))
|
|
if get_pp_group().is_last_rank:
|
|
self.lm_head = ParallelLMHead(config.vocab_size,
|
|
config.hidden_size,
|
|
quant_config=quant_config)
|
|
else:
|
|
self.lm_head = PPMissingLayer()
|
|
self.logits_processor = LogitsProcessor(config.vocab_size)
|
|
self.sampler = get_sampler()
|
|
self.make_empty_intermediate_tensors = (
|
|
self.model.make_empty_intermediate_tensors)
|
|
|
|
def forward(
|
|
self,
|
|
input_ids: torch.Tensor,
|
|
positions: torch.Tensor,
|
|
kv_caches: Optional[List[torch.Tensor]] = None,
|
|
attn_metadata: Optional[AttentionMetadata] = None,
|
|
intermediate_tensors: Optional[IntermediateTensors] = None,
|
|
inputs_embeds: Optional[torch.Tensor] = None,
|
|
) -> Union[torch.Tensor, IntermediateTensors]:
|
|
hidden_states = self.model(input_ids, positions, kv_caches,
|
|
attn_metadata, intermediate_tensors,
|
|
inputs_embeds)
|
|
return hidden_states
|
|
|
|
|
|
class CustomDeepseekV3ForCausalLM(CustomDeepseekV2ForCausalLM):
|
|
pass
|