[Test] Initialize mem_fraction_static in setUpClass to fix pytest VLM test crashes. (#10859)

Co-authored-by: svc_repro_tool <svc_repro_tool@habana.ai>

test/srt/models/test_vlm_models.py

@@ -27,6 +27,8 @@ MODELS = [
     SimpleNamespace(model="openbmb/MiniCPM-V-2_6", mmmu_accuracy=0.4),
 ]
 
+#Set default mem_fraction_static to 0.8
+DEFAULT_MEM_FRACTION_STATIC = 0.8
 
 class TestVLMModels(CustomTestCase):
     parsed_args = None  # Class variable to store args
@@ -38,6 +40,9 @@ class TestVLMModels(CustomTestCase):
         cls.api_key = "sk-123456"
         cls.time_out = DEFAULT_TIMEOUT_FOR_SERVER_LAUNCH
 
+        if cls.parsed_args is None:
+            cls.parsed_args = SimpleNamespace(mem_fraction_static=DEFAULT_MEM_FRACTION_STATIC)
+
         # Set OpenAI API key and base URL environment variables. Needed for lmm-evals to work.
         os.environ["OPENAI_API_KEY"] = cls.api_key
         os.environ["OPENAI_API_BASE"] = f"{cls.base_url}/v1"
@@ -302,7 +307,7 @@ if __name__ == "__main__":
         "--mem-fraction-static",
         type=float,
         help="Static memory fraction for the model",
-        default=0.8,
+        default=DEFAULT_MEM_FRACTION_STATIC,
     )
 
     # Parse args intended for unittest