Fixed issue with attomicEXCH creating errors on multi node runs (#587)

2022-07-22 11:32:49 -06:00
parent 686dbc8bc6
commit 254208e7dd
1 changed files with 1 additions and 1 deletions
@@ -117,7 +117,7 @@ private:

    if (flags & (Recv*RoleWaitRecv | Send*RoleWaitSend)) {
      if (isSendNotRecv && (flags & SizesFifoEnabled))
-        atomicExch_system((unsigned long long *)(connSizesFifoPtr+step%NCCL_STEPS), nelts*sizeof(T));
+        __atomic_store_n((connSizesFifoPtr+step%NCCL_STEPS), nelts*sizeof(T), __ATOMIC_SEQ_CST);

      void **ptrs = isSendNotRecv ? (ncclShmem->groups[group].dsts + Dst)
                                  : (ncclShmem->groups[group].srcs + Src);