[SOT] Change warnings to errors and remove fallback operations (#4378)

* Change warnings to errors and remove fallback operations

* fix unitest

* fix codestyle

fastdeploy/model_executor/graph_optimization/graph_optimization_backend.py

@@ -21,7 +21,6 @@ from typing import Callable, Optional, TypeVar, get_type_hints
 
 from paddle.jit import sot
 from paddle.jit.dy2static.utils import Backend as ToStaticBackend
-from paddleformers.utils.log import logger
 from typing_extensions import ParamSpec
 
 from fastdeploy.config import FDConfig
@@ -46,11 +45,10 @@ def apply_to_static_optimization(fn: Callable[P, T], backend: ToStaticBackend) -
     forward_type_hints = get_type_hints(forward_fn)
     static_forward_fn = sot.symbolic_translate(forward_fn, training=False, backend=backend)
     unsafe_static_forward_fn = None
-    need_warmup = True
 
     @functools.wraps(forward_fn)
     def warmup_impl(self, *args, **kwargs):
-        nonlocal unsafe_static_forward_fn, need_warmup
+        nonlocal unsafe_static_forward_fn
         bound_args = forward_sig.bind(self, *args, **kwargs)
         bound_args.apply_defaults()
         for name, arg in bound_args.arguments.items():
@@ -66,17 +64,11 @@ def apply_to_static_optimization(fn: Callable[P, T], backend: ToStaticBackend) -
         ]
         # Check has only one graph
         if len(new_guarded_codes) > 1:
-            logger.warning("Model has multiple generated code, please check all dynamic dim has marked.")
-            unsafe_static_forward_fn = None
-            need_warmup = False
-            return result
+            raise RuntimeError("Model has multiple generated code, please check all dynamic dim has marked.")
         # Check generated code has no break graph
         new_code = new_guarded_codes[0][0][0]
         if any(name.startswith("$") for name in new_code.co_names):  # TODO(SigureMo): It's a internal impl
-            logger.warning("Model has breakgraph, please set env SOT_LOG_LEVEL=3 to check it.")
-            unsafe_static_forward_fn = None
-            need_warmup = False
-            return result
+            raise RuntimeError("Model has breakgraph, please set env SOT_LOG_LEVEL=3 to check it.")
         unsafe_static_forward_fn = types.FunctionType(
             new_code,
             forward_fn.__globals__,
@@ -88,15 +80,12 @@ def apply_to_static_optimization(fn: Callable[P, T], backend: ToStaticBackend) -
 
     @functools.wraps(forward_fn)
     def static_forward(self, *args, **kwargs):
+        nonlocal unsafe_static_forward_fn
         if in_profile_run_mode():
             return forward_fn(self, *args, **kwargs)
-        nonlocal need_warmup
-        is_warmup = in_warmup_mode() and need_warmup
-        if is_warmup:
+        if in_warmup_mode():
             return warmup_impl(self, *args, **kwargs)
-        nonlocal unsafe_static_forward_fn
-        if unsafe_static_forward_fn is None:
-            return static_forward_fn(self, *args, **kwargs)
+        assert unsafe_static_forward_fn is not None
         return unsafe_static_forward_fn(self, *args, **kwargs)
 
     return static_forward