### What this PR does / why we need it?
**Scope of Changes**:
| File Path |
| :--- |
|` vllm_ascend/quantization/compressed_tensors/compressed_tensors.py`|
|` vllm_ascend/quantization/quant_config.py`|
|` vllm_ascend/quantization/utils.py`|
|` vllm_ascend/quantization/w4a16.py`|
|` vllm_ascend/quantization/w4a4_flatquant_dynamic.py`|
|` vllm_ascend/quantization/w4a8_dynamic.py`|
|` vllm_ascend/quantization/w8a16.py`|
|` vllm_ascend/quantization/w8a8.py`|
|` vllm_ascend/quantization/w8a8_dynamic.py`|
|` vllm_ascend/quantization/w8a8_pdmix.py`|
|` vllm_ascend/quantization/w8a8mxfp8.py`|
|` vllm_ascend/sample/rejection_sampler.py`|
|` vllm_ascend/sample/sampler.py`|
|` vllm_ascend/worker/block_table.py`|
### Does this PR introduce _any_ user-facing change?
### How was this patch tested?
- vLLM version: v0.13.0
- vLLM main:
2c24bc6996
Signed-off-by: MrZ20 <2609716663@qq.com>
This commit is contained in:
@@ -17,14 +17,16 @@
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"""Abstract base classes for Ascend quantization schemes."""
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from abc import ABC, abstractmethod
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from collections.abc import Callable
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from enum import Enum
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from typing import Any, Callable, Dict, Optional
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from typing import Any
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import torch
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class QuantType(Enum):
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"""Quantization type enum for MoE schemes."""
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NONE = 0
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W8A8 = 1
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W4A8 = 2
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@@ -32,84 +34,78 @@ class QuantType(Enum):
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class AscendLinearScheme(ABC):
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"""Base class for all linear quantization schemes.
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Subclasses must implement get_weight() and apply() methods.
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Other methods have default implementations that return empty dicts
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or do nothing.
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"""
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@abstractmethod
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def get_weight(self, input_size: int, output_size: int,
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params_dtype: torch.dtype) -> Dict[str, Any]:
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def get_weight(self, input_size: int, output_size: int, params_dtype: torch.dtype) -> dict[str, Any]:
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"""Return weight tensor specifications.
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Args:
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input_size: Input dimension of the linear layer.
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output_size: Output dimension of the linear layer.
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params_dtype: Data type for parameters.
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Returns:
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Dictionary mapping parameter names to empty tensors with
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the correct shape and dtype.
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"""
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...
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def get_pertensor_param(self, params_dtype: torch.dtype) -> Dict[str, Any]:
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def get_pertensor_param(self, params_dtype: torch.dtype) -> dict[str, Any]:
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"""Return per-tensor parameter specifications (e.g., input_scale).
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Args:
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params_dtype: Data type for parameters.
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Returns:
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Dictionary mapping parameter names to empty tensors.
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"""
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return {}
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def get_perchannel_param(self, output_size: int,
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params_dtype: torch.dtype) -> Dict[str, Any]:
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def get_perchannel_param(self, output_size: int, params_dtype: torch.dtype) -> dict[str, Any]:
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"""Return per-channel parameter specifications (e.g., weight_scale).
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Args:
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output_size: Output dimension of the linear layer.
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params_dtype: Data type for parameters.
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Returns:
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Dictionary mapping parameter names to empty tensors.
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"""
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return {}
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def get_pergroup_param(self,
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input_size: int,
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output_size: int,
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params_dtype: torch.dtype,
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layer_type: Optional[str] = None) -> Dict[str, Any]:
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def get_pergroup_param(
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self, input_size: int, output_size: int, params_dtype: torch.dtype, layer_type: str | None = None
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) -> dict[str, Any]:
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"""Return per-group parameter specifications.
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Args:
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input_size: Input dimension of the linear layer.
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output_size: Output dimension of the linear layer.
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params_dtype: Data type for parameters.
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layer_type: Type of layer (e.g., "row" for RowParallelLinear).
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Returns:
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Dictionary mapping parameter names to empty tensors.
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"""
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return {}
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@abstractmethod
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def apply(self,
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layer: torch.nn.Module,
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x: torch.Tensor,
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bias: Optional[torch.Tensor] = None,
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tp_rank: Optional[int] = 0) -> torch.Tensor:
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def apply(
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self, layer: torch.nn.Module, x: torch.Tensor, bias: torch.Tensor | None = None, tp_rank: int | None = 0
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) -> torch.Tensor:
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"""Forward computation.
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Args:
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layer: The linear layer module.
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x: Input tensor.
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bias: Optional bias tensor.
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tp_rank: Tensor parallel rank.
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Returns:
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Output tensor after quantized linear operation.
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"""
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@@ -117,42 +113,51 @@ class AscendLinearScheme(ABC):
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def process_weights_after_loading(self, layer: torch.nn.Module) -> None:
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"""Post-loading weight processing (transpose, format conversion, etc.).
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Args:
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layer: The linear layer module.
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"""
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pass
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return
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class AscendAttentionScheme(ABC):
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"""Base class for all attention quantization schemes.
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Subclasses must implement apply() method.
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Other methods have default implementations.
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"""
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def create_weights(self, layer: torch.nn.Module) -> None:
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"""Create weights for attention quantization.
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Args:
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layer: The attention layer module.
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"""
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pass
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return
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def process_weights_after_loading(self, layer: torch.nn.Module) -> None:
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"""Post-loading weight processing for attention layer.
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Args:
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layer: The attention layer module.
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"""
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pass
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return
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@abstractmethod
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def apply(self, layer: torch.nn.Module, query: torch.Tensor,
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key: torch.Tensor, value: torch.Tensor, kv_cache, attn_metadata,
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attn_type, scale, output) -> torch.Tensor:
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def apply(
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self,
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layer: torch.nn.Module,
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query: torch.Tensor,
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key: torch.Tensor,
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value: torch.Tensor,
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kv_cache,
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attn_metadata,
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attn_type,
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scale,
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output,
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) -> torch.Tensor:
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"""Forward computation for attention layer.
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Args:
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layer: The attention layer module.
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query: Query tensor.
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@@ -163,7 +168,7 @@ class AscendAttentionScheme(ABC):
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attn_type: Attention type.
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scale: Scale factor.
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output: Output tensor.
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Returns:
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Output tensor after attention computation.
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"""
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@@ -172,10 +177,10 @@ class AscendAttentionScheme(ABC):
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class AscendMoEScheme(ABC):
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"""Base class for all MoE quantization schemes.
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Subclasses must implement get_weight(), get_dynamic_quant_param(),
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and apply() methods.
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Attributes:
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quant_type: The quantization type for this scheme. Subclasses should
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override this class attribute to declare their quant type.
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@@ -185,35 +190,34 @@ class AscendMoEScheme(ABC):
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quant_type: QuantType = QuantType.NONE
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@abstractmethod
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def get_weight(self, num_experts: int,
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intermediate_size_per_partition: int, hidden_sizes: int,
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params_dtype: torch.dtype) -> Dict[str, Any]:
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def get_weight(
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self, num_experts: int, intermediate_size_per_partition: int, hidden_sizes: int, params_dtype: torch.dtype
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) -> dict[str, Any]:
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"""Return weight tensor specifications for MoE layer.
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Args:
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num_experts: Number of experts.
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intermediate_size_per_partition: Intermediate size per partition.
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hidden_sizes: Hidden dimension size.
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params_dtype: Data type for parameters.
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Returns:
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Dictionary mapping parameter names to empty tensors.
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"""
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...
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@abstractmethod
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def get_dynamic_quant_param(self, num_experts: int,
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intermediate_size_per_partition: int,
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hidden_sizes: int,
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params_dtype: torch.dtype) -> Dict[str, Any]:
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def get_dynamic_quant_param(
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self, num_experts: int, intermediate_size_per_partition: int, hidden_sizes: int, params_dtype: torch.dtype
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) -> dict[str, Any]:
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"""Return dynamic quantization parameters for MoE layer.
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Args:
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num_experts: Number of experts.
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intermediate_size_per_partition: Intermediate size per partition.
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hidden_sizes: Hidden dimension size.
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params_dtype: Data type for parameters.
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Returns:
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Dictionary mapping parameter names to empty tensors.
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"""
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@@ -229,21 +233,21 @@ class AscendMoEScheme(ABC):
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renormalize: bool,
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use_grouped_topk: bool = False,
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global_num_experts: int = -1,
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expert_map: Optional[torch.Tensor] = None,
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topk_group: Optional[int] = None,
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num_expert_group: Optional[int] = None,
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custom_routing_function: Optional[Callable] = None,
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expert_map: torch.Tensor | None = None,
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topk_group: int | None = None,
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num_expert_group: int | None = None,
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custom_routing_function: Callable | None = None,
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scoring_func: str = "softmax",
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routed_scaling_factor: float = 1.0,
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e_score_correction_bias: Optional[torch.Tensor] = None,
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e_score_correction_bias: torch.Tensor | None = None,
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is_prefill: bool = True,
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enable_force_load_balance: bool = False,
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log2phy: Optional[torch.Tensor] = None,
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log2phy: torch.Tensor | None = None,
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global_redundant_expert_num: int = 0,
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**kwargs,
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) -> torch.Tensor:
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"""Forward computation for MoE layer.
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Args:
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layer: The MoE layer module.
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x: Input hidden states.
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@@ -264,7 +268,7 @@ class AscendMoEScheme(ABC):
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log2phy: Logical to physical expert mapping.
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global_redundant_expert_num: Number of redundant experts.
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**kwargs: Additional keyword arguments.
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Returns:
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Output tensor after MoE computation.
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"""
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@@ -272,8 +276,8 @@ class AscendMoEScheme(ABC):
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def process_weights_after_loading(self, layer: torch.nn.Module) -> None:
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"""Post-loading weight processing for MoE layer.
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Args:
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layer: The MoE layer module.
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"""
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pass
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return
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