CUDA: Can allocate matrix once use in multi kernel?

I have a question that is: If i allocate 1 matrix 2D and i memcpy it into GPU and i have 2 kernel using the same that matrix, is it possible using which i don't memcpy that matrix again for kernel 2? And if it auto memcpy that matrix again for kernel 2, Does it take the time to auto memcpy it again ?