[Bugfix] Fix aclgraph not enabled by default (#2590)

### What this PR does / why we need it?
As vllm will set `cudagraph_mode` to `NONE` before
`check_and_update_config` in post init of `VllmConfig`
(5da4f5d857/vllm/config/__init__.py (L3630)),
we always have `cudagraph_mode` isn't `None`, thus we must remove this
check and add it when the related adaption in vllm is done.

part of https://github.com/vllm-project/vllm-ascend/pull/2577, will add
the e2e test on applying reply after the CI refactor is done

### How was this patch tested?
CI passed with existing test.

- vLLM version: v0.10.1.1
- vLLM main:
f48a9af892

Signed-off-by: MengqingCao <cmq0113@163.com>

tests/ut/test_platform.py

@@ -3,6 +3,7 @@ import unittest
 from datetime import timedelta
 from unittest.mock import MagicMock, patch
 
+import pytest
 import torch
 from torch.distributed import ProcessGroup
 from torch.distributed.distributed_c10d import PrefixStore
@@ -318,6 +319,8 @@ class TestNPUPlatform(TestBase):
                 CUDAGraphMode.NONE,
             )
 
+    @pytest.mark.skip(
+        "Revert me when vllm support setting cudagraph_mode on oot platform")
     @patch("vllm_ascend.utils.is_310p", return_value=False)
     @patch("vllm_ascend.ascend_config.check_ascend_config")
     @patch("vllm_ascend.ascend_config.init_ascend_config")

vllm_ascend/compilation/acl_graph.py

@@ -13,12 +13,10 @@ from vllm.compilation.cuda_graph import CUDAGraphOptions
 from vllm.compilation.monitor import validate_cudagraph_capturing_enabled
 from vllm.config import CUDAGraphMode, VllmConfig
 from vllm.forward_context import BatchDescriptor, get_forward_context
-from vllm.logger import init_logger
+from vllm.logger import logger
 from vllm.platforms import current_platform
 from vllm.utils import weak_ref_tensors
 
-logger = init_logger(__name__)
-
 
 @dataclasses.dataclass
 class ACLGraphEntry:
@@ -182,5 +180,6 @@ class ACLGraphWrapper:
                 f"during replay. Expected {entry.input_addresses}, "
                 f"got {new_input_addresses}")
 
+        logger.info_once("Replaying aclgraph")
         entry.aclgraph.replay()
         return entry.output

vllm_ascend/platform.py

@@ -146,23 +146,23 @@ class NPUPlatform(Platform):
 
         compilation_config.cudagraph_num_of_warmups = 1
 
-        if compilation_config.cudagraph_mode is None:
-            # if cudagraph_mode is not explicitly set by users, set default value
-            if compilation_config.level == CompilationLevel.PIECEWISE:
-                compilation_config.cudagraph_mode = \
-                    CUDAGraphMode.PIECEWISE
-            elif compilation_config.level not in [
-                    CompilationLevel.NO_COMPILATION, CompilationLevel.PIECEWISE
-            ]:
-                logger.warning(
-                    "NPU does not support %s compilation level. Setting CUDAGraphMode to NONE",
-                    compilation_config.level)
-                compilation_config.cudagraph_mode = CUDAGraphMode.NONE
-            else:
-                logger.warning(
-                    "compilation_config.level = CompilationLevel.NO_COMPILATION is set, Setting CUDAGraphMode to NONE"
-                )
-                compilation_config.cudagraph_mode = CUDAGraphMode.NONE
+        # TODO: make vllm support oot platform to set `compilation_config.cudagraph_mode`
+        # if cudagraph_mode is not explicitly set by users, set default value
+        if compilation_config.level == CompilationLevel.PIECEWISE:
+            compilation_config.cudagraph_mode = \
+                CUDAGraphMode.PIECEWISE
+        elif compilation_config.level not in [
+                CompilationLevel.NO_COMPILATION, CompilationLevel.PIECEWISE
+        ]:
+            logger.warning(
+                "NPU does not support %s compilation level. Setting CUDAGraphMode to NONE",
+                compilation_config.level)
+            compilation_config.cudagraph_mode = CUDAGraphMode.NONE
+        else:
+            logger.warning(
+                "compilation_config.level = CompilationLevel.NO_COMPILATION is set, Setting CUDAGraphMode to NONE"
+            )
+            compilation_config.cudagraph_mode = CUDAGraphMode.NONE
 
         # set CUDAGraphMode to None when torchair is enabled, no mather what compilation_config.level is.
         if ascend_config.torchair_graph_config.enabled: