diff --git a/inc/external/ge/ge_api_types.h b/inc/external/ge/ge_api_types.h
index 250252f9..834df591 100644
--- a/inc/external/ge/ge_api_types.h
+++ b/inc/external/ge/ge_api_types.h
@@ -219,6 +219,9 @@ const std::string HCOM_PARALLEL = "ge.hcomParallel";
 // configure whether to use dynamic batch size
 const char *const kDynamicBatchSize = "ge.dynamicBatchSize";
 
+// configure threshold of fusion data size for communication op
+const std::string FUSION_TENSOR_SIZE = "ge.fusionTensorSize";
+
 const std::string INPUT_SHAPE = "ge.inputShape";
 
 const std::string DYNAMIC_NODE_TYPE = "ge.dynamicNodeType";
diff --git a/metadef b/metadef
index 8c5be2db..e4703795 160000
--- a/metadef
+++ b/metadef
@@ -1 +1 @@
-Subproject commit 8c5be2db907c26fcd9e7ffdd27f631302140bc2a
+Subproject commit e470379501af3042ee5f7e2fa3be338a594fabb3