From 0239be9d8c38d351b7c75e1ff50fb66a7008586b Mon Sep 17 00:00:00 2001
From: Sergey Lebedev <sergeyle@nvidia.com>
Date: Wed, 8 Nov 2023 15:23:18 +0000
Subject: [PATCH] CL/HIER: disable onesided alltoallv

---
 src/components/cl/hier/alltoallv/alltoallv.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/components/cl/hier/alltoallv/alltoallv.c b/src/components/cl/hier/alltoallv/alltoallv.c
index c60bdf84fe..b73af2c82b 100644
--- a/src/components/cl/hier/alltoallv/alltoallv.c
+++ b/src/components/cl/hier/alltoallv/alltoallv.c
@@ -144,6 +144,11 @@ UCC_CL_HIER_PROFILE_FUNC(ucc_status_t, ucc_cl_hier_alltoallv_init,
         return UCC_ERR_NOT_SUPPORTED;
     }
 
+    if (coll_args->args.mask & UCC_COLL_ARGS_FIELD_GLOBAL_WORK_BUFFER) {
+        cl_debug(team->context->lib, "onesided alltoallv is not supported");
+        return UCC_ERR_NOT_SUPPORTED;
+    }
+
     if (!SBGP_ENABLED(cl_team, FULL)) {
         cl_debug(team->context->lib, "alltoallv requires FULL sbgp");
         return UCC_ERR_NOT_SUPPORTED;