hm… I thought that only the CUDA operations are synchronize in forward function.
as result, whole processing time is also same.
Does it have some way to synchronize forward function ?
Result (Check whole Process time)

Code
t = clock();
torch::Tensor outputArr[5];
std::cout << "Start Iteration run" << std::endl;
for (int i = 0; i < 100; i++)	{
	outputArr[i % 5] = module.forward({ aa_cu }).toTensor();
}
std::cout << "[Time] 100 Iter : " << clock() - t << std::endl;