From d31f7d0092ebe87c09c137378dfd2ca72458e7b4 Mon Sep 17 00:00:00 2001
From: co63oc <4617245+co63oc@users.noreply.github.com>
Date: Thu, 13 Nov 2025 17:28:35 +0800
Subject: [PATCH] fix, test=document_fix

---
 paddle/fluid/framework/ir/graph_helper.cc | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/paddle/fluid/framework/ir/graph_helper.cc b/paddle/fluid/framework/ir/graph_helper.cc
index 3fcc23c2573f6e..a238a67b3b71d1 100644
--- a/paddle/fluid/framework/ir/graph_helper.cc
+++ b/paddle/fluid/framework/ir/graph_helper.cc
@@ -547,12 +547,12 @@ void ReplaceAllReduceOp(const Node &node,
   // ### v1 = op1(grad1)
   // It is converted to:
   // ### fused_grad = check_memory_continue(grad0, grad1, grad2, ...)
-  // ### fused_grad = c_sum_allreduce(fused_grad)
+  // ### fused_grad = all_reduce(fused_grad)
   // ### v0 = op0(grad0)
   // ### v1 = op1(grad1)
   // We should add the following dependency to ensure that op0 and op1 both run
-  // after c_sum_allreduce:
-  // ### grad0 =  depend(grad0, fused_grad)
+  // after all_reduce(sum):
+  // ### grad0 = depend(grad0, fused_grad)
   // ### grad1 = depend(grad1, fused_grad)
   if (is_fused) {
     for (const auto &in : in_var_handles) {