21 lines
787 B
Python
21 lines
787 B
Python
"""Tests whether FP8 computation is enabled correctly.
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Run `pytest tests/quantization/test_fp8.py --forked`.
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"""
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import pytest
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import torch
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from tests.quantization.utils import is_quant_method_supported
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from vllm.model_executor.layers.quantization.fp8 import Fp8LinearMethod
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@pytest.mark.skipif(not is_quant_method_supported("fp8"),
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reason="FP8 is not supported on this GPU type.")
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def test_load_fp16_model(vllm_runner) -> None:
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with vllm_runner("facebook/opt-125m", quantization="fp8") as llm:
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model = llm.model.llm_engine.model_executor.driver_worker.model_runner.model # noqa: E501
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fc1 = model.model.decoder.layers[0].fc1
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assert isinstance(fc1.quant_method, Fp8LinearMethod)
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assert fc1.weight.dtype == torch.float8_e4m3fn
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