[fix]解决v1 deepseek cudagraph模式显存占用增长

vllm/compilation/decorators.py

@@ -11,6 +11,7 @@ from torch._dynamo.symbolic_convert import InliningInstructionTranslator
 
 from vllm.compilation.counter import compilation_counter
 from vllm.compilation.wrapper import TorchCompileWrapperWithCustomDispatcher
+from vllm.forward_context import get_profilling
 from vllm.config import CompilationLevel, VllmConfig
 from vllm.logger import init_logger
 from vllm.sequence import IntermediateTensors
@@ -169,7 +170,7 @@ def _support_torch_compile(
         # torch.compiler.is_compiling() means we are inside the compilation
         # e.g. TPU has the compilation logic in model runner, so we don't
         # need to compile the model inside.
-        if self.do_not_compile or torch.compiler.is_compiling():
+        if self.do_not_compile or torch.compiler.is_compiling() or get_profilling():
             return self.forward(*args, **kwargs)
 
         # the first compilation needs to have dynamic shapes marked

vllm/forward_context.py

@@ -196,3 +196,16 @@ def set_forward_context(
         _forward_context = prev_context
         if envs.VLLM_ENABLE_TBO:
             set_tbo_forward_context(_forward_context)
+
+
+_profiling: bool = False
+
+@contextmanager
+def set_profilling(profiling):
+    global _profiling
+    _profiling = profiling
+
+
+def get_profilling() -> bool:
+    global _profiling
+    return _profiling
\ No newline at end of file

vllm/v1/worker/gpu_model_runner.py

@@ -29,7 +29,7 @@ from vllm.distributed.parallel_state import (
     get_pp_group, get_tp_group, graph_capture, is_global_first_rank,
     prepare_communication_buffer_for_model)
 from vllm.forward_context import (DPMetadata, get_forward_context,
-                                  set_forward_context)
+                                  set_forward_context, set_profilling)
 from vllm.logger import init_logger
 from vllm.model_executor.layers.mamba.mamba_mixer2 import MambaMixer2
 from vllm.model_executor.layers.rotary_embedding import MRotaryEmbedding
@@ -2087,7 +2087,7 @@ class GPUModelRunner(LoRAModelRunnerMixin):
             else:
                 hidden_states = outputs
 
-            if self.speculative_config and self.speculative_config.use_eagle():
+            if self.speculative_config and self.speculative_config.use_eagle() and not is_profile:
                 assert isinstance(self.drafter, EagleProposer)
                 self.drafter.dummy_run(num_tokens, attn_metadata)
 
@@ -2222,6 +2222,10 @@ class GPUModelRunner(LoRAModelRunnerMixin):
         return pooler_output
 
     def profile_run(self) -> None:
+        # set profiling flag to avoid torch compile
+        set_profilling(True)
+        self._sync_device()
+
         # Profile with multimodal encoder & encoder cache.
         # TODO: handle encoder-decoder models once we support them.
         if (self.is_multimodal_model and self.max_num_encoder_input_tokens > 0
@@ -2305,6 +2309,7 @@ class GPUModelRunner(LoRAModelRunnerMixin):
         del hidden_states, output
         self.encoder_cache.clear()
         gc.collect()
+        set_profilling(False)
 
     def capture_model(self) -> None:
         if not self.use_cuda_graph: