Files
xc-llm-ascend/tests/e2e/singlecard/pooling/test_classification.py
lianyibo e32014ac1d [Model] Support pooling models (#3122)
### What this PR does / why we need it?

Support pooling models (like `bge-reranker-v2-m3`) in vllm-ascend, this
pr covered the three model types of embed (cls_token, mean_token,
lasttoken).

After this
[commit](17373dcd93),
vllm has provided support for adapting pooling models on the v1 engine.
This PR includes corresponding adaptations on the vllm-ascend side.

Fixes #1960

- vLLM version: v0.12.0
- vLLM main:
ad32e3e19c

---------

Signed-off-by: lianyibo <lianyibo1@kunlunit.com>
Signed-off-by: MengqingCao <cmq0113@163.com>
Co-authored-by: MengqingCao <cmq0113@163.com>
2025-12-10 11:37:57 +08:00

35 lines
1.1 KiB
Python

import torch
from modelscope import snapshot_download # type: ignore[import-untyped]
from transformers import AutoModelForSequenceClassification
from tests.e2e.conftest import HfRunner, VllmRunner
def test_classify_correctness() -> None:
model_name = snapshot_download("Howeee/Qwen2.5-1.5B-apeach")
prompts = [
"Hello, my name is",
"The president of the United States is",
"The capital of France is",
"The future of AI is what",
]
with VllmRunner(
model_name,
runner="pooling",
max_model_len=None,
cudagraph_capture_sizes=[4],
) as vllm_runner:
vllm_outputs = vllm_runner.classify(prompts)
with HfRunner(model_name,
dtype="float32",
auto_cls=AutoModelForSequenceClassification) as hf_runner:
hf_outputs = hf_runner.classify(prompts)
for hf_output, vllm_output in zip(hf_outputs, vllm_outputs):
hf_output = torch.tensor(hf_output)
vllm_output = torch.tensor(vllm_output)
assert torch.allclose(hf_output, vllm_output, 1e-2)