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sglang/test/registered/moe/test_flashinfer_a2a_cutlass.py
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"""Test FlashInfer Cutlass BF16 MoE + FlashInfer alltoall on B200 with DP attention.
Config: Qwen3-30B-A3B, B200x4, EP=4 DP=4, flashinfer cutlass + flashinfer a2a.
"""
import os
import unittest
from types import SimpleNamespace
import torch
from sglang.srt.utils import kill_process_tree
from sglang.test.ci.ci_register import register_cuda_ci
from sglang.test.run_eval import run_eval
from sglang.test.test_utils import (
DEFAULT_TIMEOUT_FOR_SERVER_LAUNCH,
DEFAULT_URL_FOR_TEST,
CustomTestCase,
popen_launch_server,
)
register_cuda_ci(
est_time=600,
stage="extra-b",
runner_config="4-gpu-b200",
disabled="Waived until sgl-kernel fix is released",
)
MODEL = os.environ.get("QWEN3_30B_A3B_MODEL_PATH", "Qwen/Qwen3-30B-A3B")
SKIP_TEST = torch.cuda.get_device_capability() < (10, 0)
SKIP_REASON = "Requires Blackwell (B200, sm_100a) or above."
@unittest.skipIf(SKIP_TEST, SKIP_REASON)
class TestFlashinferCutlassFlashinferA2A(CustomTestCase):
"""FlashInfer Cutlass BF16 MoE + FlashInfer one-sided alltoall + DP4 EP4 on B200."""
@classmethod
def setUpClass(cls):
cls.model = MODEL
cls.base_url = DEFAULT_URL_FOR_TEST
cls.process = popen_launch_server(
cls.model,
cls.base_url,
timeout=DEFAULT_TIMEOUT_FOR_SERVER_LAUNCH * 3,
other_args=[
"--trust-remote-code",
"--tp",
"4",
"--ep-size",
"4",
"--dp",
"4",
"--enable-dp-attention",
"--enable-dp-lm-head",
"--moe-runner-backend",
"flashinfer_cutlass",
"--moe-a2a-backend",
"flashinfer",
"--max-prefill-tokens",
"4096",
"--disable-radix-cache",
"--disable-flashinfer-autotune",
"--watchdog-timeout",
"900",
],
)
@classmethod
def tearDownClass(cls):
kill_process_tree(cls.process.pid)
def test_gsm8k(self):
args = SimpleNamespace(
base_url=self.base_url,
eval_name="gsm8k",
num_examples=1319,
max_tokens=10240,
repeat=1,
num_threads=1319,
num_shots=8,
temperature=0.6,
top_p=0.95,
top_k=20,
)
metrics = run_eval(args)
print(metrics)
self.assertGreater(metrics["score"], 0.90)
if __name__ == "__main__":
unittest.main()