diff --git a/ge/hybrid/model/hybrid_model_builder.cc b/ge/hybrid/model/hybrid_model_builder.cc
index 1c91aeac..afd813c1 100755
--- a/ge/hybrid/model/hybrid_model_builder.cc
+++ b/ge/hybrid/model/hybrid_model_builder.cc
@@ -318,6 +318,20 @@ Status HybridModelBuilder::ParseDependentInputNodes(NodeItem &node_item, const s
     }
   }
 
+  if (is_hccl_op) {
+    for (const auto &src_node : ge_node->GetInControlNodes()) {
+      auto src_node_item = MutableNodeItem(src_node);
+      GE_CHECK_NOTNULL(src_node_item);
+      GELOGD("[%s](%s) Add input control dependent node [%s](%s)",
+             ge_node->GetName().c_str(),
+             ge_node->GetType().c_str(),
+             src_node->GetName().c_str(),
+             src_node->GetType().c_str());
+      src_node_item->has_observer = true;
+      dependent_for_execution.emplace(src_node);
+    }
+  }
+
   // cond or branch need to be prepared before the execution of IF or CASE
   if (node_item.node_type == IF || node_item.node_type == STATELESSIF || node_item.node_type == CASE) {
     auto src_node = NodeUtils::GetInDataNodeByIndex(*ge_node, 0); // cond input
@@ -2055,8 +2069,9 @@ Status HybridModelBuilder::CollectParallelGroups(NodeItem *node_item) {
   const auto &node = node_item->node;
   auto executor_type = NodeExecutorManager::GetInstance().ResolveExecutorType(*node);
   if (executor_type == NodeExecutorManager::ExecutorType::HCCL) {
-    std::string parallel_group;
-    if (AttrUtils::GetStr(node->GetOpDesc(), ATTR_NAME_PARALLEL_GROUP, parallel_group)) {
+    int64_t parallel_group_val = -1;
+    if (AttrUtils::GetInt(node->GetOpDesc(), ATTR_NAME_PARALLEL_GROUP, parallel_group_val)) {
+      std::string parallel_group = std::to_string(parallel_group_val);
       GELOGD("[%s] Got parallel group = [%s]", node_item->NodeName().c_str(), parallel_group.c_str());
       parallel_group_to_nodes_[parallel_group].emplace(node_item);
       std::set<std::string> group{parallel_group};
@@ -2072,8 +2087,9 @@ Status HybridModelBuilder::CollectParallelGroups(NodeItem *node_item) {
       auto subgraph = hybrid_model_.root_graph_->GetSubgraph(subgraph_name);
       GE_CHECK_NOTNULL(subgraph);
       for (const auto &sub_node : subgraph->GetAllNodes()) {
-        std::string parallel_group;
-        if (AttrUtils::GetStr(sub_node->GetOpDesc(), ATTR_NAME_PARALLEL_GROUP, parallel_group)) {
+        int64_t parallel_group_val = -1;
+        if (AttrUtils::GetInt(sub_node->GetOpDesc(), ATTR_NAME_PARALLEL_GROUP, parallel_group_val)) {
+          std::string parallel_group = std::to_string(parallel_group_val);
           GELOGD("[%s::%s] Got parallel group = %s",
                  subgraph_name.c_str(),
                  sub_node->GetName().c_str(),