[Feature] support deepseek v3/r1/v3.2 (#78)
* [Feature] support deepseek v3/r1/v3.2 * fix gpt_oss * update readme * update readme --------- Co-authored-by: hanhaowen <hanhaowen@baidu.com>
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vllm_kunlun/ops/quantization/kernels/__init__.py
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vllm_kunlun/ops/quantization/kernels/__init__.py
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vllm_kunlun/ops/quantization/kernels/scaled_mm/cutlass.py
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vllm_kunlun/ops/quantization/kernels/scaled_mm/cutlass.py
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# SPDX-License-Identifier: Apache-2.0
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# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
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from typing import Optional
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import torch
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from vllm.model_executor.layers.quantization.kernels.scaled_mm.ScaledMMLinearKernel import ScaledMMLinearLayerConfig
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from vllm.model_executor.layers.quantization.kernels.scaled_mm.cutlass import CutlassScaledMMLinearKernel
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from vllm.model_executor.layers.quantization.utils import replace_parameter
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from vllm.model_executor.layers.quantization.utils.w8a8_utils import (
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convert_to_channelwise)
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def can_implement_kunlun(
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cls, c: ScaledMMLinearLayerConfig=None) -> tuple[bool, Optional[str]]:
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return True, None
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def klx_process_weights_after_loading(layer: torch.nn.Module) -> None:
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"""modify scale -> abs max"""
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layer.weight = torch.nn.Parameter(layer.weight.data, requires_grad=False)
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layer.weight_scale = torch.nn.Parameter(
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layer.weight_scale.data * 127, requires_grad=False)
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def process_weights_after_loading_kunlun(self, layer: torch.nn.Module) -> None:
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# WEIGHT
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# Cutlass kernels need transposed weight.
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weight = getattr(layer, self.w_q_name)
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replace_parameter(
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layer, self.w_q_name,
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torch.nn.Parameter(weight.t().data, requires_grad=False))
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# WEIGHT SCALE
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# Cutlass kernels support only per-tensor and per-channel.
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# If we have a fused module (QKV, MLP) with per tensor scales (thus N
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# scales being passed to the kernel), convert to the per-channel case.
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is_fused_module = len(layer.logical_widths) > 1
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weight_scale = getattr(layer, self.w_s_name)
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if is_fused_module and not self.config.is_channelwise:
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weight_scale = convert_to_channelwise(weight_scale,
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layer.logical_widths)
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replace_parameter(
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layer, self.w_s_name,
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torch.nn.Parameter(weight_scale.data, requires_grad=False))
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# INPUT SCALE
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if self.config.is_static_input_scheme:
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input_scale = getattr(layer, self.i_s_name)
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if self.config.input_symmetric:
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replace_parameter(
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layer, self.i_s_name,
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torch.nn.Parameter(input_scale.max(), requires_grad=False))
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setattr(layer, self.i_zp_name, None)
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else:
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input_zero_point = getattr(layer, self.i_zp_name)
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# reconstruct the ranges
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int8_traits = torch.iinfo(torch.int8)
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azps = input_zero_point.to(dtype=torch.int32)
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range_max = (input_scale * (int8_traits.max - azps)).max()
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range_min = (input_scale * (int8_traits.min - azps)).min()
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scale = (range_max - range_min) / (int8_traits.max -
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int8_traits.min)
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replace_parameter(
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layer, self.i_s_name,
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torch.nn.Parameter(scale, requires_grad=False))
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# AZP loaded as int8 but used as int32
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azp = (int8_traits.min -
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range_min / scale).to(dtype=torch.int32)
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replace_parameter(layer, self.i_zp_name,
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torch.nn.Parameter(azp, requires_grad=False))
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else:
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setattr(layer, self.i_s_name, None)
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setattr(layer, self.i_zp_name, None)
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# azp_adj is the AZP adjustment term, used to account for weights.
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# It does not depend on scales or azp, so it is the same for
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# static and dynamic quantization.
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# For more details, see csrc/quantization/cutlass_w8a8/Epilogues.md
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# https://github.com/vllm-project/vllm/blob/8d59dbb00044a588cab96bcdc028006ed922eb06/csrc/quantization/cutlass_w8a8/Epilogues.md
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if not self.config.input_symmetric:
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weight = getattr(layer, self.w_q_name)
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azp_adj = weight.sum(dim=0, keepdim=True, dtype=torch.int32)
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if self.config.is_static_input_scheme:
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# cutlass_w8a8 requires azp to be folded into azp_adj
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# in the per-tensor case
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azp_adj = getattr(layer, self.i_zp_name) * azp_adj
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setattr(layer, self.azp_adj_name,
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torch.nn.Parameter(azp_adj, requires_grad=False))
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else:
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setattr(layer, self.azp_adj_name, None)
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klx_process_weights_after_loading(layer)
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def apply_weights_kunlun(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) -> torch.Tensor:
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x_q, x_scale, out = None, None, None
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w_t_shape = layer.weight.T.shape
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if isinstance(x, tuple):
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x_q, x_scale = x
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out = torch.empty((x_q.shape[0], w_t_shape[0]),
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dtype=torch.bfloat16,
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device=x_q.device)
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else:
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x_shape = x.shape
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x_q = torch.empty(x_shape, dtype=torch.int8, device=x.device)
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x_scale = torch.empty((x_shape[0], 1), dtype=torch.float32, device=x.device)
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out = torch.empty((x_shape[0], w_t_shape[0]),
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dtype=x.dtype,
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device=x.device)
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torch.ops._C.quant2d(x, x_q, x_scale, force_sdnn=True)
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torch.ops._C.gemm_I8_I8_bf16_nt(x_q, x_scale, layer.weight.T.data, layer.weight_scale.data, out)
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return out
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CutlassScaledMMLinearKernel.apply_weights = apply_weights_kunlun
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CutlassScaledMMLinearKernel.can_implement = can_implement_kunlun
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CutlassScaledMMLinearKernel.process_weights_after_loading = process_weights_after_loading_kunlun
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