From b09ea29d66ab5620543ee06e03cc6b9aa4b997f1 Mon Sep 17 00:00:00 2001
From: Nusrat Islam <Nusrat.Islam@amd.com>
Date: Wed, 26 Jun 2024 16:56:10 -0500
Subject: [PATCH] graph: fix minNchannels for multi-node overwrite (#1230)

---
 src/graph/connect.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/graph/connect.cc b/src/graph/connect.cc
index de3e992de3..c704205f4c 100644
--- a/src/graph/connect.cc
+++ b/src/graph/connect.cc
@@ -674,7 +674,7 @@ ncclResult_t ncclTopoPostset(struct ncclComm* comm, int* firstRanks, int* treePa
 
   int minNchannels = ncclMinNchannels();
   if (comm->nNodes > 1) {
-    minNchannels = std::min(64, maxChannels);
+    minNchannels = std::min(64, minNchannels);
   }
   if (comm->nRanks < 8 && 64 < minNchannels) {
     minNchannels = 2;