Method trackable

tensorflow/core/profiler/internal/tfprof_node.h:371–380

  const ProfileNode& node() { return node_; }

  bool trackable(int64 step) const {
    auto exec = execs_.find(step);
    if (exec == execs_.end()) return false;

    if (exec->second.all_start_micros() == 0) return false;
    if (node_.canonical_device().empty() || node_.host_device().empty()) {
      return false;
    }
    return true;
  }

  const ProfileNode& ToProto(
      const std::map<string, std::unique_ptr<TFGraphNode>>& nodes_map) {