[VTA] Issue with TSIM based simulation of resnet18 inference on VTA

Troubleshooting
29

For a simple trick to bring what function is being called by the runtime, add following line to GraphRuntime::Run

 void GraphRuntime::Run() {
   // setup the array and requirements.
   for (size_t i = 0; i < op_execs_.size(); ++i) {
+    fprintf(stderr, "fused_layer %d\n", (int)i);
     if (op_execs_[i]) op_execs_[i]();
   }
 }

In addition, you can get a list of functions in GraphRuntime::SetupOpExecs by applying

     std::tie(op_execs_[nid], op_args) =
         CreateTVMOp(inode.param, args, inode.inputs.size());
+    std::cerr << nid << " " << inode.param.func_name << std::endl;

     for (size_t i = 0; i < inode.inputs.size(); i++) {