!1548 [session]make manager for every graph

Merge pull request !1548 from chenfei_mindspore/r0.3

mindspore/ccsrc/device/cpu/cpu_kernel_runtime.cc

@@ -44,8 +44,7 @@ void CPUKernelRuntime::AssignKernelAddress(session::KernelGraph *kernel_graph) {
 void CPUKernelRuntime::AssignValueNodeAddress(session::KernelGraph *kernel_graph) {
   MS_EXCEPTION_IF_NULL(kernel_graph);
   size_t type_size = sizeof(float);
-  for (auto &item : kernel_graph->value_nodes()) {
-    auto item_node = item.first;
+  for (auto &item_node : kernel_graph->graph_value_nodes()) {
     MS_EXCEPTION_IF_NULL(item_node);
     if (item_node->isa<ValueNode>()) {
       auto value_node = item_node->cast<ValueNodePtr>();

mindspore/ccsrc/session/session_basic.cc

@@ -589,7 +589,7 @@ KernelGraphPtr SessionBasic::ConstructKernelGraph(const AnfNodePtrList &lst, con
   // add a make_tuple at the end of graph as output
   graph->set_output(ConstructOutput(outputs, graph));
   MS_EXCEPTION_IF_NULL(context_);
-  FuncGraphManagerPtr manager = context_->manager();
+  FuncGraphManagerPtr manager = MakeManager({graph});
   if (manager) {
     manager->AddFuncGraph(graph);
     graph->set_manager(manager);