[feat] Support nvfp4 quantized model of Qwen3-Next (#17627)

2026-02-28 10:28:47 +08:00
parent ac400cb7bb
commit a2ea5941d5
2 changed files with 83 additions and 1 deletions
--- a/test/registered/models/test_qwen3_next_models_fp4.py
+++ b/test/registered/models/test_qwen3_next_models_fp4.py
@@ -0,0 +1,71 @@
+import unittest
+from types import SimpleNamespace
+
+from sglang.srt.utils import get_device_sm, kill_process_tree
+from sglang.test.ci.ci_register import register_cuda_ci
+from sglang.test.few_shot_gsm8k 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=500, suite="nightly-4-gpu-b200", nightly=True)
+
+QWEN3_NEXT_MODEL_FP4 = "nvidia/Qwen3-Next-80B-A3B-Instruct-NVFP4"
+
+ACC_THRESHOLDS = {
+    QWEN3_NEXT_MODEL_FP4: {"kl_div": 0.0025, "gsm8k": 0.93},
+}
+
+
+@unittest.skipIf(
+    get_device_sm() < 100, "Test requires CUDA SM 100 or higher (Blackwell)"
+)
+class TestQwen3NextFp4(CustomTestCase):
+    @classmethod
+    def setUpClass(cls):
+        cls.model = QWEN3_NEXT_MODEL_FP4
+        cls.base_url = DEFAULT_URL_FOR_TEST
+        cls.process = popen_launch_server(
+            cls.model,
+            cls.base_url,
+            timeout=DEFAULT_TIMEOUT_FOR_SERVER_LAUNCH,
+            other_args=[
+                "--tp-size",
+                "4",
+                "--chunked-prefill-size",
+                "2048",
+                "--quantization",
+                "modelopt_fp4",
+                "--mamba-scheduler-strategy",
+                "extra_buffer",
+                "--mamba-track-interval",
+                "128",
+            ],
+        )
+
+    @classmethod
+    def tearDownClass(cls):
+        kill_process_tree(cls.process.pid)
+
+    def test_gsm8k(self):
+        args = SimpleNamespace(
+            num_shots=5,
+            data_path=None,
+            num_questions=200,
+            max_new_tokens=512,
+            parallel=128,
+            host="http://127.0.0.1",
+            port=int(self.base_url.split(":")[-1]),
+        )
+        metrics = run_eval(args)
+        print(f"{metrics=}")
+        self.assertGreaterEqual(
+            metrics["accuracy"], ACC_THRESHOLDS[self.model]["gsm8k"]
+        )
+
+
+if __name__ == "__main__":
+    unittest.main()