Files
xc-llm-ascend/vllm_ascend/ops/activation.py
zzzzwwjj 136ea9ff56 [refact] unified soc_version code (#4359)
### What this PR does / why we need it?

Currently, there are two paths to judge the chip type in code,
`get_ascend_soc_version` use `get_soc_version` api in torch_npu, and
`is_310p` `use _build_info.__soc_version__`, which generate when
install. We need to unify the two paths.

We need to unify these codes based on the following points:

1. We need to ensure consistency in chip type judgment between compiling
and running states;
2. In compiling state, we need chip type to complete op's compilation,
but in running state, we only need device
type(910B/910_93/310P/910_95/etc) to make code branch judgement;
3. In compiling state, torch_npu may not have been installed yet, so we
can't use torch_npu's api.

Based on the above points, we have made the following changes:

1. When user set env `SOC_VERSION`, use it; when not set, query
soc_version by `npu-smi`;
2. generate device_type based on soc_version when compiling, and write
`__device_type__` instead of `__soc_version__` in `_build_info.py`;
3. In running state, use `__device_type__` to judge code branch.

### Does this PR introduce _any_ user-facing change?

When not set env `SOC_VERSION`, it will not be `ASCEND910B1` by default,
we will query soc_version by `npu-smi`. And env `SOC_VERSION` must be in
the list `soc_to_device` in `setup.py`.

- vLLM version: v0.11.0
- vLLM main:
2918c1b49c

Signed-off-by: zzzzwwjj <1183291235@qq.com>
2025-11-26 14:28:55 +08:00

45 lines
1.4 KiB
Python

#
# Copyright (c) 2025 Huawei Technologies Co., Ltd. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# This file is a part of the vllm-ascend project.
#
import torch
from vllm.model_executor.layers.activation import QuickGELU, SiluAndMul
class AscendQuickGELU(QuickGELU):
def forward_oot(self, x: torch.tensor) -> torch.Tensor:
import torch_npu
out = torch_npu.npu_fast_gelu(x)
return out
class AscendSiluAndMul(SiluAndMul):
def forward_oot(self, x: torch.Tensor) -> torch.Tensor:
import torch_npu
from vllm_ascend.utils import AscendDeviceType, get_ascend_device_type
torch.ops.vllm.maybe_prefetch_mlp_down_proj(x)
if get_ascend_device_type() == AscendDeviceType._310P:
out = torch_npu.npu_swiglu(x.to(torch.float32)).to(torch.float16)
else:
out = torch_npu.npu_swiglu(x)
torch.ops.vllm.maybe_wait_prefetch_done(out)
return out