Files
sglang/test/srt/test_torch_flex_attention_backend.py
2025-09-18 11:49:17 -07:00

50 lines
1.4 KiB
Python

"""
Usage:
python3 -m unittest test_torch_flex_attention_backend.TestTorchFlexAttnBackend.test_gsm8k
"""
import unittest
from types import SimpleNamespace
from sglang.srt.utils import kill_process_tree
from sglang.test.few_shot_gsm8k import run_eval as run_eval_few_shot_gsm8k
from sglang.test.test_utils import (
DEFAULT_MODEL_NAME_FOR_TEST,
DEFAULT_TIMEOUT_FOR_SERVER_LAUNCH,
DEFAULT_URL_FOR_TEST,
CustomTestCase,
popen_launch_server,
)
class TestTorchFlexAttnBackend(CustomTestCase):
def test_gsm8k(self):
model = DEFAULT_MODEL_NAME_FOR_TEST
base_url = DEFAULT_URL_FOR_TEST
process = popen_launch_server(
model,
base_url,
timeout=DEFAULT_TIMEOUT_FOR_SERVER_LAUNCH,
other_args=["--attention-backend", "flex_attention"],
)
try:
args = SimpleNamespace(
num_shots=8,
data_path=None,
num_questions=100,
parallel=10,
max_new_tokens=512,
host="http://127.0.0.1",
port=int(base_url.split(":")[-1]),
)
metrics = run_eval_few_shot_gsm8k(args)
print(f"{metrics=}")
self.assertGreater(metrics["accuracy"], 0.62)
finally:
kill_process_tree(process.pid)
if __name__ == "__main__":
unittest.main()