From a1d5bc4cce7d613feb5f87e5740faefa1ddc352b Mon Sep 17 00:00:00 2001
From: Elfie Guo <164945471+elfiegg@users.noreply.github.com>
Date: Sun, 26 Oct 2025 12:31:14 -0700
Subject: [PATCH] Avoid using flashinfer_allreduce_fusion when dp attention is
 enabled. (#11632)

---
 python/sglang/srt/layers/communicator.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/python/sglang/srt/layers/communicator.py b/python/sglang/srt/layers/communicator.py
index c386d6111..4e377d47a 100644
--- a/python/sglang/srt/layers/communicator.py
+++ b/python/sglang/srt/layers/communicator.py
@@ -337,6 +337,7 @@ class LayerCommunicator:
         static_conditions_met = (
             (not self.is_last_layer)
             and (self._context.tp_size > 1)
+            and not is_dp_attention_enabled()
             and get_global_server_args().enable_flashinfer_allreduce_fusion
             and _is_flashinfer_available
         )