!483 Bugfix: fix mem_rw conflict unnecessary identity in PartitionCall subgraph

From: @hugo1
Reviewed-by: @xchu42,@ji_chen
Signed-off-by: @ji_chen

ge/graph/optimize/mem_rw_conflict_optimize.cc

@@ -335,7 +335,8 @@ Status MarkRWTypeForSubgraph(const ComputeGraphPtr &sub_graph) {
         auto pre_output_rw_type = GetOutputRWTypeByIndex(*pre_node, pre_out_anchor->GetIdx());
         GELOGD("Output rw type of Node %s %dth output anchor is %s", pre_node->GetName().c_str(),
                pre_out_anchor->GetIdx(), OutputRWTypeToSerialString(pre_output_rw_type).c_str());
-        if (pre_output_rw_type == OutputRWType::kWriteable) {
+        auto parent_node = sub_graph->GetParentNode();
+        if (pre_output_rw_type == OutputRWType::kWriteable && parent_node->GetType() != PARTITIONEDCALL) {
           // insert identity
           auto identity_node = CreateIdentityAfterSrcNode(*pre_node, pre_out_anchor->GetIdx());
           GE_CHECK_NOTNULL(identity_node);
@@ -346,8 +347,9 @@ Status MarkRWTypeForSubgraph(const ComputeGraphPtr &sub_graph) {
           }
           GELOGI("InsertNode %s between %s and %s successfully.", identity_node->GetName().c_str(),
                  pre_node->GetName().c_str(), node->GetName().c_str());
+          pre_output_rw_type = OutputRWType::kSoftRead;
         }
-        output_rw_type_map.emplace(std::make_pair(in_data_anchor->GetIdx(), OutputRWType::kSoftRead));
+        output_rw_type_map.emplace(std::make_pair(in_data_anchor->GetIdx(), pre_output_rw_type));
       }
       NodeInputOutputRWType output_rw_type{{}, output_rw_type_map};
       node_rwtype_map_.emplace(std::make_pair(node->GetName(), output_rw_type));