intel · Chao1Han · Jun 4, 2025 · Jun 4, 2025 · Jun 4, 2025 · Jun 4, 2025
diff --git a/src/xccl/IPCExchange.hpp b/src/xccl/IPCExchange.hpp
diff --git a/src/xccl/ProcessGroupXCCL.cpp b/src/xccl/ProcessGroupXCCL.cpp
@@ -1911,7 +1911,7 @@ c10::intrusive_ptr<Work> ProcessGroupXCCL::barrier(const BarrierOptions& opts) {
   }
 
   auto currentStream = at::xpu::getCurrentXPUStream(barDevIdx);
-  currentStream.synchronize();
+  //  currentStream.synchronize(); // zl_debug workaround for symm barrier
-  //  currentStream.synchronize(); // zl_debug workaround for symm barrier
+  currentStream.synchronize(); // Ensure stream synchronization for barrier
-  //  currentStream.synchronize(); // zl_debug workaround for symm barrier
+  currentStream.synchronize(); // Ensure stream synchronization for barrier
   return nullptr;
 }