GPUKernelSizeOptimizerSvc::KernelsEntry Node1 GPUKernelSizeOptimizerSvc ::KernelsEntry Node2 std::string Node2->Node1 +device +name Node3 std::basic_string< char > Node3->Node2 Node4 std::vector< std::vector < GPUKernelSizeOptimizerSvc ::KernelsEntry::KernelInfo > > + elements Node4->Node1 +kernels