vllm/tests/models/test_gptq_marlin_24.py

72 lines
2.4 KiB
Python

"""Compare the outputs of a GPTQ model to a Marlin_24 model.
Note: GPTQ and Marlin_24 do not have bitwise correctness.
As a result, in this test, we just confirm that the top selected tokens of the
Marlin/GPTQ models are in the top 3 selections of each other.
Run `pytest tests/models/test_marlin_24.py`.
"""
from dataclasses import dataclass
import pytest
from tests.models.utils import check_logprobs_close
from tests.quantization.utils import is_quant_method_supported
@dataclass
class ModelPair:
model_marlin: str
model_gptq: str
model_pairs = [
# 4-bit, group_size == 128
ModelPair(model_marlin="alexm-nm/tinyllama-24-marlin24-4bit-g128",
model_gptq="alexm-nm/tinyllama-24-gptq-4bit-g128"),
# 4-bit, group_size == channelwise
ModelPair(model_marlin="alexm-nm/tinyllama-24-marlin24-4bit-channelwise",
model_gptq="alexm-nm/tinyllama-24-gptq-4bit-channelwise"),
# 8-bit, group_size == 128
ModelPair(model_marlin="alexm-nm/tinyllama-24-marlin24-8bit-g128",
model_gptq="alexm-nm/tinyllama-24-gptq-8bit-g128"),
# 8-bit, group_size == channelwise
ModelPair(model_marlin="alexm-nm/tinyllama-24-marlin24-8bit-channelwise",
model_gptq="alexm-nm/tinyllama-24-gptq-8bit-channelwise"),
]
@pytest.mark.flaky(reruns=2)
@pytest.mark.skipif(not is_quant_method_supported("gptq_marlin_24"),
reason="Marlin24 is not supported on this GPU type.")
@pytest.mark.parametrize("model_pair", model_pairs)
@pytest.mark.parametrize("dtype", ["half"])
@pytest.mark.parametrize("max_tokens", [8])
@pytest.mark.parametrize("num_logprobs", [5])
def test_models(
vllm_runner,
example_prompts,
model_pair: ModelPair,
dtype: str,
max_tokens: int,
num_logprobs: int,
) -> None:
with vllm_runner(model_pair.model_marlin,
dtype=dtype,
quantization="gptq_marlin_24") as marlin_24_model:
marlin_24_outputs = marlin_24_model.generate_greedy_logprobs(
example_prompts, max_tokens, num_logprobs)
with vllm_runner(model_pair.model_gptq, dtype=dtype,
quantization="gptq") as gptq_model:
gptq_outputs = gptq_model.generate_greedy_logprobs(
example_prompts, max_tokens, num_logprobs)
check_logprobs_close(
outputs_0_lst=gptq_outputs,
outputs_1_lst=marlin_24_outputs,
name_0="gptq",
name_1="marlin_24",
)