From 2e8b3a0857517943833cc036306ec5580a733ee9 Mon Sep 17 00:00:00 2001
From: Wenkai Du <43822138+wenkaidu@users.noreply.github.com>
Date: Mon, 9 Nov 2020 11:23:17 -0800
Subject: [PATCH] Use ncclSend/ncclRecv for alltoall type of collectives as
 default (#297)

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

diff --git a/src/init.cc b/src/init.cc
index f6881a1284..98c41b68e1 100644
--- a/src/init.cc
+++ b/src/init.cc
@@ -299,7 +299,7 @@ static ncclResult_t commFree(ncclComm_t comm) {
   return ncclSuccess;
 }
 
-RCCL_PARAM(AllToAllDisable, "ALLTOALL_KERNEL_DISABLE", 0);
+RCCL_PARAM(AllToAllDisable, "ALLTOALL_KERNEL_DISABLE", 1);
 
 static ncclResult_t commAlloc(ncclComm_t* comret, int ndev, int rank) {
   if (ndev < 1) {