[torch.compile bug] avoid biased_grouped_topk_impl func repeatedly triggering...

[torch.compile bug] avoid biased_grouped_topk_impl func repeatedly triggering `torch.compile` in forward pass (#8353)

python/sglang/srt/layers/moe/topk.py

@@ -387,6 +387,7 @@ def grouped_topk_cpu(
     )
 
 
+@torch.compile(dynamic=True, backend=get_compiler_backend(), disable=_is_npu)
 def biased_grouped_topk_impl(
     hidden_states: torch.Tensor,
     gating_output: torch.Tensor,
@@ -482,7 +483,6 @@ def biased_grouped_topk_gpu(
     renormalize: bool,
     num_expert_group: int = 0,
     topk_group: int = 0,
-    compiled: bool = not _is_npu,
     num_fused_shared_experts: int = 0,
     routed_scaling_factor: Optional[float] = None,
     num_token_non_padded: Optional[torch.Tensor] = None,
@@ -535,14 +535,7 @@ def biased_grouped_topk_gpu(
         )
         return topk_weights, topk_ids
     else:
-        biased_grouped_topk_fn = (
-            torch.compile(
-                biased_grouped_topk_impl, dynamic=True, backend=get_compiler_backend()
-            )
-            if compiled
-            else biased_grouped_topk_impl
-        )
-        return biased_grouped_topk_fn(
+        return biased_grouped_topk_impl(
             hidden_states,
             gating_output,
             correction_bias,