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89
tests/models/language/pooling/test_embedding.py
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89
tests/models/language/pooling/test_embedding.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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import pytest
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from vllm.config import PoolerConfig
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from ...utils import check_embeddings_close
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@pytest.mark.parametrize(
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"model",
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[
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# Be careful of the order of models, decoder-only models should be
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# placed before encoder-only models, otherwise `Qwen2.5-0.5B-Instruct`
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# case won't pass because gte-Qwen2-1.5B-instruct will cache custom
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# model code with bidirectional attention.
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# [Decoder-only]
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pytest.param(
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"BAAI/bge-multilingual-gemma2",
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marks=[pytest.mark.core_model, pytest.mark.slow_test],
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),
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pytest.param(
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"intfloat/e5-mistral-7b-instruct",
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marks=[pytest.mark.core_model, pytest.mark.cpu_model],
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),
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pytest.param(
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"ssmits/Qwen2-7B-Instruct-embed-base", marks=[pytest.mark.cpu_model]
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),
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# [Encoder-only]
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pytest.param(
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"BAAI/bge-base-en-v1.5",
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marks=[
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pytest.mark.core_model,
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pytest.mark.cpu_model,
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pytest.mark.slow_test,
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],
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),
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pytest.param("sentence-transformers/all-MiniLM-L12-v2"),
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pytest.param("intfloat/multilingual-e5-small"),
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# [Cross-Encoder]
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pytest.param(
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"sentence-transformers/stsb-roberta-base-v2",
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marks=[pytest.mark.core_model, pytest.mark.cpu_model],
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),
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],
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)
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def test_models(
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hf_runner,
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vllm_runner,
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example_prompts,
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model,
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) -> None:
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vllm_extra_kwargs = {}
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if model == "ssmits/Qwen2-7B-Instruct-embed-base":
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vllm_extra_kwargs["pooler_config"] = PoolerConfig(
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pooling_type="MEAN", normalize=False
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)
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max_model_len: int | None = 512
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if model in [
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"sentence-transformers/all-MiniLM-L12-v2",
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"sentence-transformers/stsb-roberta-base-v2",
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]:
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max_model_len = None
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# The example_prompts has ending "\n", for example:
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# "Write a short story about a robot that dreams for the first time.\n"
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# sentence_transformers will strip the input texts, see:
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# https://github.com/UKPLab/sentence-transformers/blob/v3.1.1/sentence_transformers/models/Transformer.py#L159
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# This makes the input_ids different between hf_model and vllm_model.
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# So we need to strip the input texts to avoid test failing.
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example_prompts = [str(s).strip() for s in example_prompts]
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with hf_runner(model, is_sentence_transformer=True) as hf_model:
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hf_outputs = hf_model.encode(example_prompts)
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with vllm_runner(
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model, runner="pooling", max_model_len=max_model_len, **vllm_extra_kwargs
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) as vllm_model:
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vllm_outputs = vllm_model.embed(example_prompts)
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check_embeddings_close(
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embeddings_0_lst=hf_outputs,
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embeddings_1_lst=vllm_outputs,
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name_0="hf",
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name_1="vllm",
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tol=1e-2,
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)
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