support e4m3 kvcache in qwen2 & add kv scaling facotr json (#2894)

Co-authored-by: bjmsong <bjmsong@126.com>

test/srt/test_fp8_kvcache.py

@@ -6,19 +6,26 @@ from sglang.srt.utils import kill_process_tree
 from sglang.test.run_eval import run_eval
 from sglang.test.test_utils import (
     DEFAULT_MODEL_NAME_FOR_TEST,
+    DEFAULT_SMALL_MODEL_NAME_FOR_TEST_QWEN,
     DEFAULT_TIMEOUT_FOR_SERVER_LAUNCH,
     DEFAULT_URL_FOR_TEST,
     popen_launch_server,
 )
 
 
-class TestFp8Kvcache(unittest.TestCase):
+class TestFp8KvcacheBase(unittest.TestCase):
+    model_config = None
+
     @classmethod
     def setUpClass(cls):
-        cls.model = DEFAULT_MODEL_NAME_FOR_TEST
+        if cls.model_config is None:
+            raise NotImplementedError("model_config must be specified in subclass")
+
+        cls.model = cls.model_config["model_name"]
         cls.base_url = DEFAULT_URL_FOR_TEST
         dirpath = os.path.dirname(__file__)
-        config_file = os.path.join(dirpath, "kv_cache_scales_llama3_8b_chat.json")
+        config_file = os.path.join(dirpath, cls.model_config["config_filename"])
+
         cls.process = popen_launch_server(
             cls.model,
             cls.base_url,
@@ -31,6 +38,13 @@ class TestFp8Kvcache(unittest.TestCase):
             ],
         )
 
+
+class TestFp8KvcacheLlama(TestFp8KvcacheBase):
+    model_config = {
+        "model_name": DEFAULT_MODEL_NAME_FOR_TEST,
+        "config_filename": "kv_cache_scales_llama3_8b.json",
+    }
+
     @classmethod
     def tearDownClass(cls):
         kill_process_tree(cls.process.pid)
@@ -45,7 +59,7 @@ class TestFp8Kvcache(unittest.TestCase):
         )
 
         metrics = run_eval(args)
-        self.assertGreater(metrics["score"], 0.835)
+        self.assertGreater(metrics["score"], 0.80)
 
     def test_mmlu(self):
         args = SimpleNamespace(
@@ -60,5 +74,40 @@ class TestFp8Kvcache(unittest.TestCase):
         self.assertGreaterEqual(metrics["score"], 0.65)
 
 
+class TestFp8KvcacheQwen(TestFp8KvcacheBase):
+    model_config = {
+        "model_name": DEFAULT_SMALL_MODEL_NAME_FOR_TEST_QWEN,
+        "config_filename": "kv_cache_scales_qwen2_1_5b.json",
+    }
+
+    @classmethod
+    def tearDownClass(cls):
+        kill_process_tree(cls.process.pid)
+
+    def test_mgsm_en(self):
+        args = SimpleNamespace(
+            base_url=self.base_url,
+            model=self.model,
+            eval_name="mgsm_en",
+            num_examples=None,
+            num_threads=1024,
+        )
+
+        metrics = run_eval(args)
+        self.assertGreater(metrics["score"], 0.01)
+
+    def test_mmlu(self):
+        args = SimpleNamespace(
+            base_url=self.base_url,
+            model=self.model,
+            eval_name="mmlu",
+            num_examples=64,
+            num_threads=32,
+        )
+
+        metrics = run_eval(args)
+        self.assertGreaterEqual(metrics["score"], 0.3)
+
+
 if __name__ == "__main__":
     unittest.main()